WO2014089831A1 - Random access method and device - Google Patents

Abstract

The present invention provides a random access method and a device. The method comprises: a primary UE sending a layer 2/layer 3 message to a network-side device in a group random access time window, wherein the layer 2/layer 3 message comprises transmission requirement instruction information; the primary UE and a secondary UE using a same random access resource, and the secondary UE avoiding sending a sequence code to the network-side device in the group random access time window; and in the group random access time window, the primary UE receiving an access completion notification message sent back by the network-side device after receiving the lay 2/layer 3 message, so as to complete a random access process. The technical scheme in the present invention reduces random access time of the UE.

Description

 TECHNICAL FIELD The present invention relates to communications technologies, and in particular, to a random access method and device. Background technique

 In a wireless communication system, because the available resources are limited, the user equipment (User Equipment, UE for short) needs to allocate corresponding resources only when it needs to communicate. When the UE initiates communication, the first is a random access procedure. During the random access procedure, the UE obtains the time, frequency, and code resources required to carry out the service.

 In the Long Term Evolution (LTE) system, the random access process is mainly divided into two methods based on competition and non-contention. In the contention-based random process, the base station (eNB) indicates in the broadcast message the access resource information that the local cell is allowed to initiate random access, and the UE randomly selects an allowed sequence at a time and frequency that allows random access. The code (English for Preamble) initiates random access. Since each UE randomly selects random access resources randomly, a collision occurs when multiple UEs select the same random access resource. When a collision occurs, only one of the multiple UEs that generate the collision can successfully access, and other UEs need to re-initiate the random access attempt after a period of time. After the conflict fails, the UE needs to retreat until it successfully accesses or reaches. Until the maximum number of access attempts.

 Machine Type Communication (MTC) is a communication that is automatically performed without human intervention. Unlike human to human (H2H) communication, MTC is characterized by a very large number of MTC users. many. For the MTC, because the random access resources are limited and the number of MTC UEs is large, a large number of MTC UEs may fail to compete during random access, and the failed MTC UEs re-initiate random access after a period of backoff. Therefore, the random access time of the MTC UE is prolonged, and the MTC UE cannot be guaranteed to perform normal services. Summary of the invention

The embodiments of the present invention provide a random access method and device, which are used to reduce the random access time of the UE and ensure that the UE performs services normally. The first aspect provides a contention-based random access method, including:

 The primary user equipment UE in the user group sends a layer 2/layer 3 message to the network side device in the group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information, and the transmission requirement indication information is used to enable The network side device learns information about a UE having a transmission requirement in the user group, where the primary UE and the secondary UE in the user group use the same random access resource, and the secondary UE is in the The sequence code is not sent to the network side device in the group random access time window, where the random access resource includes the sequence code and the time-frequency resource;

 The primary UE receives an access completion notification message returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window to complete a random access procedure.

 In a first possible implementation manner of the first aspect, the transmission requirement indication information includes a quantity of the UE in the user group and an identifier of the user group.

 With the first possible implementation of the first aspect, in a second possible implementation manner of the first aspect, if the primary UE has no transmission requirement, the primary UE is in the group random access time window. The received access completion advertisement message is a first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message, where the first contention resolution message includes a location for transmitting the request resource. Instructions.

 With the first possible implementation of the first aspect, in a third possible implementation manner of the first aspect, if the group length has a transmission requirement, the primary UE is in the group random access time window. Receiving the access completion notification message returned by the network side device after receiving the layer 2/layer 3 message, to complete the random access process, including:

 Receiving, by the primary UE, the first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window, where the first contention resolution message includes Transmitting location indication information of the request resource; the first contention resolution message is the access completion notification message;

 And the primary UE, according to the location information of the user group and the location indication information of the transmission request resource, to the network side in the corresponding location of the transmission request resource in the group random access time window. The device sends a transmission request message.

With the first possible implementation of the first aspect, in a fourth possible implementation manner of the first aspect, if the primary UE has a transmission requirement, the primary UE is in the group random access time window. Receiving an access completion notification returned after the network side device receives the layer 2/layer 3 message Information to complete the random access process includes:

 Receiving, by the primary UE, the first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window, where the first contention resolution message includes Transmitting location indication information of the request resource;

 And the primary UE, according to the location information of the user group and the location indication information of the transmission request resource, to the network side in the corresponding location of the transmission request resource in the group random access time window. The device sends a transmission request message;

 The primary UE receives a transmission request response message sent by the network side device in the group random access time window to complete a random access procedure; and the transmission request response message is the access completion notification message.

 In conjunction with the fourth possible implementation of the first aspect, in a fifth possible implementation manner of the first aspect, the transmission request response message includes information of the UE with a transmission requirement.

 With reference to the fourth possible implementation manner of the first aspect, or the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the foregoing aspect, Receiving the transmission request response message sent by the network side device in the time window to complete the random access process includes:

 The primary UE receives the transmission resource indication information sent by the network side device according to the location information of the user group, and performs data transmission on the transmission resource indicated by the transmission resource indication information.

 With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the primary UE performs wireless data transmission on the transmission resource indicated by the transmission resource indication information The network temporary identifier is public information, or the cell radio network temporary identifier C-RNTI of the user group, or is determined according to a preset determination rule, and the public information refers to information that all UEs in the user group know in advance.

 With reference to the seventh possible implementation manner of the foregoing aspect, in the eighth possible implementation manner of the foregoing aspect, the preset determining rule is a combination of the public information and the identifier of the primary UE, Or combining the C-RNTI of the user group with the identifier of the primary UE.

In a ninth possible implementation manner of the first aspect, the transmission requirement indication information includes start location information of a UE with a transmission requirement, a number of UEs with a transmission requirement, and an identifier of the user group. With reference to the ninth possible implementation manner of the first aspect, in a tenth possible implementation manner of the first aspect, the access completion notification message that is received by the primary UE in the group random access time window a second contention resolution message returned by the network side device after receiving the layer 2/layer 3 message, where the second contention resolution message includes the start location information of the UE with the transmission requirement, The number of UEs with transmission requirements and the identity of the user group are described.

 The second aspect provides a contention-based random access method, including:

 The secondary user equipment UE in the user group receives the random access response RAR sent by the network side device in the group random access time window, and if the RAR is successfully received in the group random access time window, the secondary UE Obtaining a temporary cell radio network temporary identifier TC-RNTI from the RAR;

 The RAR is returned by the network side device after receiving the sequence code sent by the primary UE in the user group on the time-frequency resource in the group random access time window; the primary UE and the The secondary UE uses the same random access resource, and the secondary UE does not send the sequence code to the network side device in the group random access time window, where the random access resource includes the sequence code And the time-frequency resource;

 The secondary UE receives an access completion advertisement message sent by the network side device in the group random access time window, and if the access completion notification message is successfully received in the group random access time window, The TC-RNTI of the user group is used as the cell radio network temporary identifier C-RNTI of the user group to complete the random access process, where the access completion advertisement message is that the network side device receives the Returned by the primary UE after the layer 2/layer 3 message sent in the group random access time window, the layer 2/layer 3 message includes transmission requirement indication information, and the transmission requirement indication information is used to make the network The side device learns information about the UE having the transmission requirement in the user group.

 In a first possible implementation manner of the second aspect, the transmission requirement indication information includes a quantity of the UE in the user group and an identifier of the user group.

 With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, if the secondary UE has no transmission requirement, the secondary UE is in the group random access time window. The received access completion advertisement message is a first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message, where the first contention resolution message includes a location for transmitting the request resource. Instructions.

With reference to the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, if the secondary UE has a transmission requirement, the secondary UE is in the group random access time window. Receiving the access completion notification message sent by the network side device includes:

 Receiving, by the secondary UE, the first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window, where the first contention resolution message includes Transmitting location indication information of the request resource; the first contention resolution message is the access completion notification message;

 And the secondary UE, according to the location information of the user group and the location indication information of the transmission request resource, to the network side in the corresponding location of the transmission request resource in the group random access time window. The device sends a transmission request message, so that the network side device learns that the secondary UE has a transmission requirement.

 With reference to the first possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, if the secondary UE has a transmission requirement, the secondary UE is in the group random access time window. Receiving the access completion notification message sent by the network side device includes:

 Receiving, by the secondary UE, the first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window, where the first contention resolution message includes Transmitting location indication information of the request resource;

 And the secondary UE, according to the location information of the user group and the location indication information of the transmission request resource, to the network side in the corresponding location of the transmission request resource in the group random access time window. The device sends a transmission request message, so that the network side device learns that the secondary UE has a transmission requirement;

 Receiving, by the secondary UE, a transmission request response message sent by the network side device in the group random access time window; the transmission request response message is the access completion notification message.

 In conjunction with the fourth possible implementation of the second aspect, in a fifth possible implementation manner of the second aspect, the transmission request response message includes information of the UE with a transmission requirement.

 With the fourth possible implementation of the second aspect or the fifth possible implementation of the second aspect, in a sixth possible implementation manner of the second aspect, the secondary UE is in the group random access After receiving the transmission request response message sent by the network side device in the time window, the method includes:

 The secondary UE receives the transmission resource indication information sent by the network side device according to the location information of the user group, and performs data transmission on the transmission resource indicated by the transmission resource indication information.

In conjunction with the sixth possible implementation of the second aspect, the seventh possible implementation in the second aspect In the current mode, the radio network temporary identifier used by the secondary UE to perform data transmission on the transmission resource indicated by the transmission resource indication information is public information, or a cell radio network temporary identifier C-RNTI of the user group, or It is determined according to a preset determination rule, and the public information refers to information that all UEs in the user group know in advance.

 With reference to the seventh possible implementation of the second aspect, in an eighth possible implementation manner of the second aspect, the preset determining rule is a combination of the public information and the identifier of the primary UE, Or combining the C-RNTI of the user group with the identifier of the primary UE.

 In a ninth possible implementation manner of the second aspect, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

 With reference to the ninth possible implementation manner of the second aspect, in a tenth possible implementation manner of the second aspect, the access completion notification message that is received by the secondary UE in the group random access time window a second contention resolution message returned by the network side device after receiving the layer 2/layer 3 message, where the second contention resolution message includes the start location information of the UE with the transmission requirement, The number of UEs with transmission requirements and the identity of the user group are described.

 The third aspect provides a contention-based random access method, including:

 The network side device receives the layer 2/layer 3 message sent by the primary user equipment UE in the user group in the group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information; wherein, the primary UE and The secondary UEs in the user group use the same random access resource, and the secondary UE does not send the sequence code to the network side device in the group random access time window, where the random access resource includes the Said serial code and time-frequency resources;

 The network side device learns, according to the transmission requirement indication information, information about a UE having a transmission requirement in the user group, and returns an access completion notification message after receiving the layer 2/layer 3 message, to notify the The UE in the user group completes the random access procedure.

 In a first possible implementation manner of the third aspect, the transmission requirement indication information includes a quantity of the UE in the user group and an identifier of the user group.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the network side device, according to the transmission requirement indication information, learns that the user group has a transmission requirement The information of the UE, and after receiving the layer 2/layer 3 message, returning an access completion notification message, to notify the UE in the user group to complete the random access procedure, including: The network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group;

 Returning, by the network side device, the first contention resolution message after receiving the layer 2/layer 3 message, where the first contention resolution message includes location indication information of the transmission request resource, the first contention Resolving the message as the access completion notification message;

 And receiving, by the network side device, a transmission request message sent by the UE with the data transmission requirement on the transmission request resource, and obtaining information about the UE having the transmission requirement according to the transmission request message.

 With reference to the first possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, the network side device, according to the transmission requirement indication information, learns that the user group has a transmission requirement The information of the UE, and after receiving the layer 2/layer 3 message, returning an access completion notification message, to notify the UE in the user group to complete the random access procedure, including:

 The network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group;

 The network side device returns a first contention resolution message after receiving the layer 2/layer 3 message, where the first contention resolution message includes location indication information of the transmission request resource;

 Receiving, by the network side device, the transmission request message sent by the UE with the data transmission requirement on the transmission request resource, and obtaining, according to the transmission request message, the information of the UE having the transmission requirement;

 And the network side device returns a transmission request response message, to notify the UE having the transmission requirement to complete a random access procedure, where the transmission request response message is the access completion advertisement message.

 In conjunction with the third possible implementation of the third aspect, in a fourth possible implementation manner of the third aspect, the transmission request response message includes information of the UE with a transmission requirement.

 In a fifth possible implementation manner of the third aspect, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

With reference to the fifth possible implementation manner of the third aspect, in a sixth possible implementation manner of the third aspect, the network side device, according to the transmission requirement indication information, learns that the user group has a transmission requirement The information of the UE, and after receiving the layer 2/layer 3 message, returning an access completion notification message, to notify the UE in the user group to complete the random access procedure, including: The network side device learns, according to the starting location information of the UE with the transmission requirement and the number of the UEs with the transmission requirement, information about the UE having the transmission requirement in the user group;

 After receiving the layer 2/layer 3 message, the network side device returns a second contention resolution message to notify the UE in the user group to complete a random access procedure; the second contention resolution message includes The start location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group; the second contention resolution message is the access completion advertisement message.

 The fourth aspect provides a non-contention based random access method, including:

 The primary user equipment UE in the user group sends the sequence code and the transmission requirement indication information to the network side device in the group random access time window, where the transmission requirement indication information is used to enable the network side device to learn that the user group has a transmission. Information of the required UE; wherein the primary UE and the secondary UE in the user group use the same random access resource, and the secondary UE does not go to the network side in the group random access time window The device sends a sequence code and the transmission requirement indication information, where the random access resource includes the sequence code and a time-frequency resource;

 The primary UE receives an access completion notification message returned by the network side device after receiving the sequence code and the transmission requirement indication information in the group random access time window to complete a random access procedure.

 In a first possible implementation manner of the fourth aspect, the transmission requirement indication information includes a quantity of the UE in the user group and an identifier of the user group.

 With the first possible implementation of the fourth aspect, in a second possible implementation manner of the fourth aspect, if the primary UE has no transmission requirement, the primary UE is in the group random access time window. The received access completion advertisement message is a first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information; and the first RAR includes location indication information of a transmission request resource.

 With reference to the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, if the primary UE has a transmission requirement, the primary UE is in the group random access time window. Receiving the access completion notification message returned by the network side device after receiving the sequence code and the transmission requirement indication information, to complete the random access process, including:

Receiving, by the primary UE, the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information in the group random access time window, where the first RAR includes a transmission request resource Location indication information; the first RAR is the access completion notification message; And the primary UE, according to the location information of the user group and the location indication information of the transmission request resource, to the network side in the corresponding location of the transmission request resource in the group random access time window. The device sends a transmission request message.

 With reference to the first possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, if the primary UE has a transmission requirement, the primary UE is in the group random access time window. Receiving the access completion notification message returned by the network side device after receiving the sequence code and the transmission requirement indication information, to complete the random access process, including:

 Receiving, by the primary UE, the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information in the group random access time window, where the first RAR includes a transmission request resource Location indication information;

 And the primary UE, according to the location information of the user group and the location indication information of the transmission request resource, to the network side in the corresponding location of the transmission request resource in the group random access time window. The device sends a transmission request message;

 The primary UE receives a transmission request response message sent by the network side device in the group random access time window to complete a random access procedure; and the transmission request response message is the access completion notification message.

 With reference to the fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the transmission request response message includes information about the UE with a transmission requirement.

 With the fourth possible implementation manner of the fourth aspect, or the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the primary UE is in the group random access Receiving the transmission request response message sent by the network side device in the time window to complete the random access process includes:

 The primary UE receives the transmission resource indication information sent by the network side device according to the location information of the user group, and performs data transmission on the transmission resource indicated by the transmission resource indication information.

With reference to the sixth possible implementation manner of the fourth aspect, in a seventh possible implementation manner of the fourth aspect, the primary UE performs wireless data transmission on the transmission resource indicated by the transmission resource indication information The network temporary identifier is public information, or the cell radio network temporary identifier C-RNTI of the user group, or is determined according to a preset determination rule, and the public information refers to information that all UEs in the user group know in advance. With reference to the seventh possible implementation manner of the fourth aspect, in an eighth possible implementation manner of the fourth aspect, the preset determining rule is a combination of the public information and the identifier of the primary UE, Or combining the C-RNTI of the user group with the identifier of the primary UE.

 In a ninth possible implementation manner of the fourth aspect, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

 With reference to the ninth possible implementation manner of the fourth aspect, in a tenth possible implementation manner of the fourth aspect, the access completion notification message that is received by the primary UE in the group random access time window a second RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information, where the second RAR includes the start location information of the UE with the transmission requirement, and the transmission The number of UEs required and the identity of the user group.

 The fifth aspect provides a non-contention based random access method, including:

 The secondary user equipment UE in the user group receives the access completion notification message sent by the network side device in the group random access time window;

 The access completion advertisement message is that the network side device receives the sequence code and the transmission requirement indication information sent by the primary UE in the user group on the time-frequency resource in the group random access time window. The primary UE and the secondary UE use the same random access resource, and the secondary UE does not send the sequence code and the transmission to the network side device in the group random access time window. The demand indication information, the random access resource includes the sequence code and the time-frequency resource; if the access completion notification message is successfully received in the group random access time window, the secondary UE is configured according to the The access completion notification message is determined to determine that the random access procedure is completed.

 In a first possible implementation manner of the fifth aspect, the transmission requirement indication information includes a quantity of the UE in the user group and an identifier of the user group.

 With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, if the secondary UE has no transmission requirement, the secondary UE is in the group random access time window. The received access completion advertisement message is a first random access response (RAR) returned by the network side device after receiving the sequence code and the transmission requirement indication information, where the first RAR includes a location of the transmission request resource. Instructions.

With reference to the first possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, if the secondary UE has a transmission requirement, the secondary user equipment UE in the user group is in the group Receiving the access completion advertisement message sent by the network side device in the random access time window includes: receiving, by the secondary UE, the sequence code and the transmission by the network side device in the group random access time window a first RAR that is returned after the requirement indication information, where the first RAR includes location indication information of a transmission request resource; the first RAR is the access completion advertisement message; and the secondary UE is in the user group according to itself The location information and the location indication information of the transmission request resource, in the group random access time window, send a transmission request message to the network side device at a corresponding location of the transmission request resource.

 With reference to the first possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, if the secondary UE has a transmission requirement, the secondary user equipment UE in the user group is randomly connected in the group. The access completion notification message sent by the receiving network side device in the incoming time window includes:

 Receiving, by the secondary UE, the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information in the group random access time window, where the first RAR includes a transmission request resource Location indication information;

 And the secondary UE, according to the location information of the user group and the location indication information of the transmission request resource, to the network side in the corresponding location of the transmission request resource in the group random access time window. The device sends a transmission request message;

 Receiving, by the secondary UE, a transmission request response message sent by the network side device in the group random access time window; the transmission request response message is the access completion notification message.

 With reference to the fourth possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the transmission request response message includes information about the UE that has a transmission requirement.

 With reference to the fourth possible implementation manner of the fifth aspect, or the fifth possible implementation manner of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, the secondary UE is in the group random access After receiving the transmission request response message sent by the network side device in the time window, the method includes:

 The secondary UE receives the transmission resource indication information sent by the network side device according to the location information of the user group, and performs data transmission on the transmission resource indicated by the transmission resource indication information.

With reference to the sixth possible implementation manner of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the secondary UE performs wireless data transmission on the transmission resource indicated by the transmission resource indication information The network temporary identifier is public information, or a cell radio network temporary identifier C-RNTI of the user group, or determined according to a preset determination rule, where the public information refers to Information that is known in advance by all UEs in the user group.

 With reference to the seventh possible implementation manner of the fifth aspect, in the eighth possible implementation manner of the fifth aspect, the preset determining rule is formed by combining the public information with the identifier of the primary UE, Or combining the C-RNTI of the user group with the identifier of the primary UE.

 In a ninth possible implementation manner of the fifth aspect, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier network side device of the user group.

 With reference to the ninth possible implementation manner of the fifth aspect, in a tenth possible implementation manner of the fifth aspect, the access completion notification message that is received by the secondary UE in a group random access time window is a second RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information; the second RAR includes start location information of the UE with a transmission requirement, and the transmission requirement The number of UEs and the identity of the user group.

 The sixth aspect provides a non-contention based random access method, including:

 The network side device receives the sequence code and the transmission requirement indication information that are sent by the primary user equipment UE in the user group in the group random access time window; wherein the primary UE and the secondary UE in the user group use the same random connection And the secondary UE does not send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, where the random access resource includes the sequence code and the time frequency. Resource

 And the network side device, according to the transmission requirement indication information, information about the UE having the transmission requirement in the user group, and returning the access completion notification message after receiving the sequence code and the transmission requirement indication information, The UE in the user group is notified to complete the random access procedure.

 In a first possible implementation manner of the sixth aspect, the transmission requirement indication information includes a quantity of the UE in the user group and an identifier of the user group.

 In a second possible implementation manner of the sixth aspect, the network side device, according to the transmission requirement indication information, learns information about a UE having a transmission requirement in the user group, and receives the sequence code and Returning the access completion notification message after the transmission requirement indication information, to notify the UE in the user group to complete the random access process, including:

Returning, by the network side device, the first RAR after receiving the sequence code and the transmission requirement indication information, where the first RAR includes location indication information of a transmission request resource; Enter the completion notice message; The network side device receives the transmission request message sent by the UE with the transmission requirement on the transmission request resource, and obtains information about the UE with the transmission requirement according to the transmission request message.

 In a third possible implementation manner of the sixth aspect, the network side device, according to the transmission requirement indication information, learns information about a UE having a transmission requirement in the user group, and receives the sequence code and Returning the access completion notification message after the transmission requirement indication information, to notify the UE in the user group to complete the random access process, including:

 The network side device returns to the first RAR after receiving the sequence code and the transmission requirement indication information, where the first RAR includes location indication information of a transmission request resource;

 Receiving, by the network side device, the transmission request message sent by the UE with the transmission requirement on the transmission request resource, and obtaining the information of the UE having the transmission requirement according to the transmission request message;

 The network side device sends a transmission request response message to notify the UE having the transmission requirement to complete a random access procedure, where the transmission request response message is the access completion notification message.

 With reference to the third possible implementation manner of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the transmission request response message includes information about the UE with a transmission requirement.

 In a fifth possible implementation manner of the sixth aspect, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

 With reference to the fifth possible implementation manner of the sixth aspect, in a sixth possible implementation manner of the sixth aspect, the network side device, according to the transmission requirement indication information, learns that the user group has a transmission requirement The information of the UE, and after receiving the sequence code and the transmission requirement indication information, returning an access completion notification message, to notify the UE in the user group to complete the random access procedure, including:

 The network side device learns, according to the start location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group, information about the UE having the transmission requirement in the user group;

After receiving the sequence code and the transmission requirement indication information, the network side device returns a second RAR to notify the UE in the user group to complete a random access procedure; the second RAR includes the transmission The starting location information of the required UE, the number of UEs having the transmission requirement, and The identifier of the user group; the second RAR is the access completion advertisement message.

 A seventh aspect provides a user equipment UE, including:

 a sending module, configured to send a layer 2/layer 3 message to the network side device in a group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information, where the transmission requirement indication information is used to make the network The side device learns the information of the UE having the transmission requirement in the user group, where the UE is the primary UE in the user group, and the UE and the secondary UE in the user group use the same random access resource, and The secondary UE does not send the sequence code to the network side device in the group random access time window, where the random access resource includes the sequence code and the time-frequency resource;

 And a receiving module, configured to receive, in the group random access time window, an access completion advertisement message returned by the network side device after receiving the layer 2/layer 3 message, to complete a random access procedure.

 The eighth aspect provides a user equipment UE, including:

 a receiving module, configured to receive, in a group random access time window, a random access response RAR sent by the network side device, and receive an access completion notification message sent by the network side device in the group random access time window;

 An acquiring module, configured to acquire a temporary cell radio network temporary identifier TC-RNTI from the RAR when the receiving module successfully receives the RAR in the group random access time window;

 The RAR is returned by the network side device after receiving the sequence code sent by the primary UE in the user group on the time-frequency resource in the group random access time window; the UE is the user group. The secondary UE, the UE and the primary UE use the same random access resource, and the UE does not send the sequence code to the network side device in the group random access time window, The random access resource includes the sequence code and the time-frequency resource;

 An access completion module, configured to: when the receiving module successfully receives the access complete advertisement message in the group random access time window, use the TC-RNTI of the user group as the cell of the user group The wireless network temporarily identifies the C-RNTI to complete the random access procedure. The access completion advertisement message is that the network side device receives the layer 2 sent by the primary UE in the group random access time window. After the layer 3/layer 3 message is returned, the layer 2/layer 3 message includes transmission requirement indication information, and the transmission requirement indication information is used to enable the network side device to learn information about the UE having the transmission requirement in the user group.

 The ninth aspect provides a network side device, including:

a receiving module, configured to receive, in a group random access time window, a primary user equipment UE in a user group a layer 2/layer 3 message, where the layer 2/layer 3 message includes transmission requirement indication information, where the primary UE and the secondary UE in the user group use the same random access resource, and the auxiliary The UE does not send the sequence code to the network side device in the group random access time window, where the random access resource includes the sequence code and the time-frequency resource;

 a determining module, configured to learn, according to the transmission requirement indication information, information about a UE having a transmission requirement in the user group;

 And a sending module, configured to return an access completion notification message after the receiving module receives the layer 2/layer 3 message, to notify the UE in the user group to complete a random access procedure.

 A tenth aspect provides a user equipment UE, including:

 a sending module, configured to send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, where the transmission requirement indication information is used to enable the network side device to obtain information about the UE having the transmission requirement in the user group. The UE is the primary UE in the user group, the UE and the secondary UE in the user group use the same random access resource, and the secondary UE is in the group random access time window. The sequence code and the transmission requirement indication information are not sent to the network side device, where the random access resource includes the sequence code and the time-frequency resource;

 And a receiving module, configured to receive, in the group random access time window, an access completion notification message returned by the network side device after receiving the sequence code and the transmission requirement indication information, to complete a random access procedure.

 The eleventh aspect provides a user equipment UE, including:

 a receiving module, configured to receive an access completion notification message sent by the network side device in a group random access time window;

 The access completion advertisement message is returned after the network side device receives the sequence code and the transmission requirement indication information sent by the primary UE in the user group on the time-frequency resource in the group random access time window; The UE is a secondary UE in the user group, the UE and the primary UE use the same random access resource, and the UE does not go to the network side device in the group random access time window. And sending the sequence code and the transmission requirement indication information, where the random access resource includes the sequence code and the time-frequency resource;

The access completion module is configured to determine, according to the access completion advertisement message, that the random access procedure is completed, when the receiving module successfully receives the access completion advertisement message in the group random access time window. A twelfth aspect provides a network side device, including:

 a receiving module, configured to receive a sequence code and a transmission requirement indication information that are sent by the primary user equipment UE in the user group in the group random access time window; where the primary UE and the secondary UE in the user group use the same Randomly accessing the resource, and the secondary UE does not send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, where the random access resource includes the sequence code and Time-frequency resources;

 a determining module, configured to learn, according to the transmission requirement indication information, information about a UE having a transmission requirement in the user group;

 And a sending module, configured to return an access completion notification message after the receiving module receives the sequence code and the transmission requirement indication information, to notify the UE in the user group to complete a random access procedure.

 A thirteenth aspect provides a user equipment UE, including:

 a transmitter, configured to send a layer 2/layer 3 message to the network side device in a group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information, where the transmission requirement indication information is used to enable the network The side device learns the information of the UE having the transmission requirement in the user group, where the UE is the primary UE in the user group, and the UE and the secondary UE in the user group use the same random access resource, and The secondary UE does not send the sequence code to the network side device in the group random access time window, where the random access resource includes the sequence code and the time-frequency resource;

 And a receiver, configured to receive, in the group random access time window, an access completion advertisement message returned by the network side device after receiving the layer 2/layer 3 message, to complete a random access procedure.

 The fourteenth aspect provides a user equipment UE, including:

 a receiver, configured to receive, in a group random access time window, a random access response RAR sent by the network side device, and receive an access completion notification message sent by the network side device in the group random access time window;

 The RAR is returned by the network side device after receiving the sequence code sent by the primary UE in the user group on the time-frequency resource in the group random access time window; the UE is the user group. The secondary UE, the UE and the primary UE use the same random access resource, and the UE does not send the sequence code to the network side device in the group random access time window, The random access resource includes the sequence code and the time-frequency resource;

a processor, configured to successfully receive, in the group random access time window, the receiver And obtaining, by the RAR, a temporary cell radio network temporary identifier TC-RNTI, and when the receiver successfully receives the access completion notification message in the group random access time window, The TC-RNTI of the user group is used as the cell radio network temporary identifier C-RNTI of the user group to complete the random access procedure, where the access completion advertisement message is that the network side device receives the primary UE. After the layer 2/layer 3 message sent in the group random access time window is returned, the layer 2/layer 3 message includes transmission requirement indication information, and the transmission requirement indication information is used to learn the network side device. The user group has information of the UE that transmits the demand.

 A fifteenth aspect provides a network side device, including:

 a receiver, configured to receive a layer 2/layer 3 message sent by the primary user equipment UE in the user group in a group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information; The UE and the secondary UE in the user group use the same random access resource, and the secondary UE does not send the sequence code to the network side device in the group random access time window, the random access resource Include the sequence code and time-frequency resources;

 a processor, configured to learn, according to the transmission requirement indication information, information about a UE that has a transmission requirement in the user group;

 And a transmitter, configured to return an access completion advertisement message after the receiver receives the layer 2/layer 3 message, to notify the UE in the user group to complete a random access procedure.

 A sixteenth aspect provides a user equipment UE, including:

 And a transmitter, configured to send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, where the transmission requirement indication information is used to enable the network side device to learn information about the UE having the transmission requirement in the user group. The UE is the primary UE in the user group, the UE and the secondary UE in the user group use the same random access resource, and the secondary UE is in the group random access time window. The sequence code and the transmission requirement indication information are not sent to the network side device, where the random access resource includes the sequence code and the time-frequency resource;

 And a receiver, configured to receive, in the group random access time window, an access completion notification message returned by the network side device after receiving the sequence code and the transmission requirement indication information, to complete a random access procedure.

 A seventeenth aspect provides a user equipment UE, including:

a receiver, configured to receive an access completion notification message sent by the network side device in a group random access time window; The access completion advertisement message is returned after the network side device receives the sequence code and the transmission requirement indication information sent by the primary UE in the user group on the time-frequency resource in the group random access time window; The UE is a secondary UE in the user group, the UE and the primary UE use the same random access resource, and the UE does not go to the network side device in the group random access time window. And sending the sequence code and the transmission requirement indication information, where the random access resource includes the sequence code and the time-frequency resource;

 The processor is configured to determine, according to the access completion advertisement message, that the random access procedure is completed, when the receiver successfully receives the access complete advertisement message in the group random access time window.

 The eighteenth aspect provides a network side device, including:

 a receiver, configured to receive a sequence code and transmission requirement indication information that is sent by a primary user equipment UE in a user group in a group random access time window; wherein, the primary UE and the secondary UE in the user group use the same Randomly accessing the resource, and the secondary UE does not send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, where the random access resource includes the sequence code and Time-frequency resources;

 a processor, configured to learn, according to the transmission requirement indication information, information about a UE that has a transmission requirement in the user group;

 And a transmitter, configured to return an access completion advertisement message after the receiver receives the sequence code and the transmission requirement indication information, to notify the UE in the user group to complete a random access procedure.

 The contention-based random access method and device provided by the embodiment of the present invention, by grouping UEs, use the same random access resource for each user group, the primary UE and the secondary UE, and the primary UE randomly accesses the group. In the time window, all the UEs in the user group initiate a group random access procedure, so that the random access is initiated in the user group unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the probability is reduced. The random access time of the UE ensures that the UE performs normal services.

The non-contention-based random access method and device provided by the embodiments of the present invention, by grouping UEs, use the same random access resource for each user group, the primary UE and the secondary UE, and the primary UE is randomly connected in the group. In the incoming time window, all the UEs in the user group initiate a group random access procedure, so that the random access is initiated in the user group as a unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the probability is reduced. The random access time of the UE ensures that the UE performs normal services. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.

 FIG. 1 is a flowchart of a contention-based random access method according to an embodiment of the present invention; FIG. 2 is a flowchart of a contention-based random access method according to another embodiment of the present invention; A flowchart of a contention-based random access method provided by another embodiment; FIG. 4A is a flowchart of a contention-based random access method according to another embodiment of the present invention; FIG. 4B is still another embodiment of the present invention; FIG. 5 is a flowchart of a non-contention based random access method according to an embodiment of the present invention; FIG. 6 is a flowchart of a non-contention based random access method according to an embodiment of the present invention; A flowchart of a random access method for competing; FIG. 8A is a flowchart of a non-contention based random access method according to another embodiment of the present invention; FIG. 8A is a non-contention according to another embodiment of the present invention. FIG. 8B is a flowchart of a non-contention-based random access method according to another embodiment of the present invention; FIG. 9 is a schematic structural diagram of a UE according to an embodiment of the present invention;

 FIG. 10 is a schematic structural diagram of a UE according to another embodiment of the present disclosure;

 FIG. 1 is a schematic structural diagram of a UE according to another embodiment of the present disclosure;

 FIG. 12 is a schematic structural diagram of a UE according to another embodiment of the present disclosure;

 FIG. 13 is a schematic structural diagram of a network side device according to an embodiment of the present invention;

 FIG. 14 is a schematic structural diagram of a network side device according to another embodiment of the present disclosure;

 FIG. 15 is a schematic structural diagram of a UE according to another embodiment of the present disclosure;

 FIG. 16 is a schematic structural diagram of a UE according to another embodiment of the present disclosure;

 FIG. 17 is a schematic structural diagram of a UE according to another embodiment of the present disclosure;

 FIG. 18 is a schematic structural diagram of a UE according to another embodiment of the present disclosure;

 FIG. 19 is a schematic structural diagram of a network side device according to another embodiment of the present invention;

FIG. 20 is a schematic structural diagram of a network side device according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS In order to make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the following will be combined with the present invention. The technical solutions in the embodiments of the present invention are clearly and completely described in the drawings, and the embodiments are described as a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

 FIG. 1 is a flowchart of a contention-based random access method according to an embodiment of the present invention. As shown

As shown in Figure 1, the method of this embodiment includes:

 Step 101: The primary UE in the user group sends a layer 2/layer 3 message to the network side device in the group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information, and the transmission requirement indication information is used. The network side device is made aware of the information of the UE in the user group that has the transmission requirement.

 The primary UE and the secondary UE in the user group use the same random access resource, and the secondary UE does not send the sequence code to the network side device in the group random access time window, where the random access resource includes the primary UE in the group. The sequence code sent to the network side device on the time-frequency resource in the random access time window and the time-frequency resource used.

 Step 102: The primary UE receives an access completion advertisement message returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window, to complete the random access procedure. It is a base station, but is not limited thereto, and may be any other device that can implement the functions of the network side device in the embodiment of the present invention.

 In this embodiment, the UE is grouped to form a user group, and each user group includes two or more UEs. The user group can be preset, and it is preferable to select the same type of UE to form the same user group. For example, UEs with the same service type or UEs with the same Timing Advance (TA) can be selected as the same user group. The size and size of each user group are not limited and may be determined according to the actual application.

In each user group, one UE is selected in advance as the primary UE, and other UEs are referred to as secondary UEs. In this embodiment, group random access is performed in units of user groups. The primary UE in each user group initiates a group random access procedure on behalf of the user group, that is, the primary UE is responsible for sending a sequence code (reamble) and a layer 2/layer 3 message to the network side device, and the secondary UE is in the group random access time window. The sequence code is not sent to the network side device. The members of each user group (including the secondary UE and the primary UE) know in advance the ID of the primary UE and the identification information of the user group. Optionally, the identifier information of the user group may be an ID of the primary UE in the user group, an ID of the user group, or a sequence code used by the user group, but is not limited thereto. In this embodiment, a group random access time window is defined for each user group, and each user group initiates group random access to the network side device in its corresponding group random access time window. The group random access time window is actually a time range, for example, from 1 point to 1 point 2 minutes, from 2:20 minutes 30 seconds to 2:22 minutes 10 seconds. The same group random access time window is used for the primary UE and the secondary UE within the user group.

 Before the group random access is performed, the primary UE or the secondary UE acquires the used random access time window. Optionally, the user group and the network side device may pre-agreed the group random access time window, and the primary UE and the secondary UE in the user group pre-store the agreed group random access time window. Based on this, the secondary UE and the primary UE can directly obtain the pre-agreed group random access time window locally. Optionally, the network side device may send the indication information of the group random access time window used by the user group to the primary UE and the secondary UE in the user group in real time. Based on this, before step 101, the primary UE receives the indication information of the group random access time window sent by the network side device. In addition, the secondary UE also receives the indication information of the group random access time window sent by the network side device. The primary UE and the secondary UE learn the group random access time window that should be used according to the indication information of the group random access time window sent by the network side device.

 The group random access process is the same for different user groups. Therefore, this embodiment uses one of the user groups as an example for description. Specifically, when the group random access time window is started, the primary UE of the user group sends the sequence code used by the user group to the network side device on the time-frequency resource used by the user group, and initiates a group random access procedure. Since all the members in the user group share the same sequence code and time-frequency resources, all members in the user group can learn the same RAR message, and the RAR message includes information such as TC-RNTI, TA command (Command) and the like. The primary UE in the user group monitors the RAR sent by the network side device in the group random access time window, and receives the RAR corresponding to the user group returned by the network side device after receiving the sequence code; The UE also receives the RAR sent by the network side device in the group random access time window.

For the primary UE, if the primary UE does not correctly receive the RAR returned by the network side device in the RAR reception time window, the primary UE may retransmit the sequence code to the network side device after a period of time; if the primary UE is in the group random access time window If the RAR returned by the network side device is not correctly received, the random access may be separately initiated to the network side device after the group random access time window ends. Here, the RAR reception time window is different from the group random access time window, and the RAR reception time window is smaller than the group random access time window. If the primary UE successfully receives the RAR returned by the network side device in the group random access time window, adjust the uplink sending time according to the TA command in the received RAR, and The layer 2/layer 3 message is sent to the network side device, and the layer 2/layer 3 message includes transmission requirement indication information, and is used to enable the network side device to learn information about the UE having the transmission requirement in the user group. It can be seen that the transmission requirement indication information of this embodiment is to be able to indicate the UE having the transmission requirement in the user group, which may be any information that satisfies the requirement. After receiving the layer 2/layer 3 message, the network side device obtains the transmission requirement indication information, and performs corresponding processing on the random access procedure of the user group according to the transmission requirement indication information, and then the user group returns an access completion notification. a message, so that the primary UE and the secondary UE in the user group learn that the group random access procedure is completed.

 For the secondary UE, if the secondary UE successfully receives the RAR returned by the network side device in the group random access time window, the secondary UE may acquire the TC-RNTI from the received RAR, and will continue to randomly access in the group. The access completion notification message sent by the network side device is received in the time window. After the access completion notification message is successfully received, the TC-RNTI is used as the C-RNTI of the user group, and the random access procedure of the user group is completed. If the secondary UE does not successfully receive the RAR returned by the network side device in the group random access time window, the random access may be separately initiated to the network side device after the group random access time window ends.

 In this embodiment, the primary UE or the secondary UE separately initiates the random access to the network side device, and the primary UE or the secondary UE initiates the contention-based random access procedure according to the prior art, and details are not described herein.

 Before the random access is performed, the secondary UE and the primary UE need to acquire the random access resources used in advance. Optionally, the network side device and the user group pre-agreed the random access resources used by the user group. Based on this, the secondary UE and the primary UE can acquire the pre-agreed random access resources before performing random access. Optionally, the group leader and the secondary UE may also calculate the commonly used random access resources by using public information before performing random access. The public information here may be information known to all members of the user group such as the ID of the user group or the ID of the primary UE.

 In an optional implementation manner, the transmission requirement indication information sent by the primary UE to the network side device includes the number of UEs in the user group where the primary UE is located and the identifier of the user group. In the case that the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group, the cooperation of the network side device is required to implement the indication of the transmission requirement indication information for the UE having the transmission requirement in the user group. This embodiment provides two types of processing methods for the network side devices, but is not limited to the two types. The two processing modes are respectively shown in the following:

The first processing mode of the network side device includes: after receiving the transmission requirement indication information sent by the primary UE, the network side device can determine which user group is specific according to the identifier of the user group. On the other hand, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a transmission request message to the UE having the transmission requirement in the user group, thereby obtaining the user. The group has information about the UEs that need to transmit. Specifically, after receiving the layer 2/layer 3 message, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and after receiving the layer 2/layer 3 message. Returning the contention resolution message, which is recorded as the first contention resolution message, the first contention resolution message includes location indication information of the transmission request resource allocated by the network side device. Here, the location indication information of the transmission request resource may be indicated by three latitudes of a frequency resource, an orthogonal code resource, and a time resource. Then, the network side device further receives a transmission request message sent by the UE having the transmission requirement in the user group according to the location indication information of the transmission request resource at the corresponding location of the transmission request resource.

 Based on the first processing manner of the network side device, for the primary UE, if the primary UE does not have a transmission requirement, the primary UE receives the first contention solution that the network side device returns after receiving the layer 2/layer 3 message. After the message, there is no need to send a transmission request message to the network side device. If the primary UE has a transmission requirement, the implementation process of the foregoing step 102 includes: receiving, by the primary UE, a first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window, where The first contention resolution message includes location indication information of the transmission request resource; the primary UE transmits the corresponding location of the transmission request resource in the group random access time window according to the location information of the user in the user group and the location indication information of the foregoing transmission request resource. The transmission request message is sent to the network side device. In this embodiment, whether the primary UE has a transmission requirement or no transmission requirement, the access completion notification message received by the primary UE in the group random access time window is that the network side device returns after receiving the layer 2/layer 3 message. The first contention resolution message, the first contention resolution message includes location indication information for transmitting the request resource.

 The first processing mode of the network-side device is the same as that of the primary UE, and is not described in detail herein, and will be described in detail in subsequent embodiments.

The second processing mode of the network side device includes: after receiving the transmission requirement indication information sent by the primary UE, the network side device may determine, according to the identifier of the user group, which user group has transmission requirements, and on the other hand, the network side The device allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a transmission request message to the UE having the transmission requirement in the user group, and further information about the UE having the transmission requirement in the user group. . Specifically, after receiving the layer 2/layer 3 message, the network side device according to the number of UEs in the user group and the identifier of the user group Assigning a transmission request resource to the user group, and returning the contention resolution message after receiving the layer 2/layer 3 message, which is recorded as a first contention resolution message, where the first contention resolution message includes the network side device allocated The location indication information of the transmission request resource. Here, the location indication information of the transmission request resource may be indicated by three latitudes of a frequency resource, an orthogonal code resource, and a time resource. Then, the network side device further receives a transmission request message sent by the UE having the transmission requirement in the user group according to the location indication information of the transmission request resource at the corresponding location of the transmission request resource. After receiving the transmission request message sent by the UE with the transmission requirement, the network side device also returns a transmission request response message to inform the UE with the transmission requirement that the random access procedure is successfully completed.

 It is noted that the second processing mode of the network side device is different from the first processing mode in that: after receiving the transmission request message sent by the UE with the transmission requirement, the network side device returns a transmission request response message.

 Based on the second processing manner of the network side device, for the primary UE, if the primary UE does not have a transmission requirement, the primary UE receives the first contention solution that the network side device returns after receiving the layer 2/layer 3 message. After the message is sent, the transmission request message is not sent to the network side device, and the transmission request response message returned by the network side device is not received. Therefore, in the case that the primary UE has no transmission requirement, the access completion notification message received by the primary UE in the group random access time window is the first competition returned by the network side device after receiving the layer 2/layer 3 message. Resolving the message, the first contention resolution message includes location indication information for transmitting the request resource.

 If the primary UE has a transmission requirement, the implementation process of the foregoing step 102 includes: receiving, by the primary UE, a first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window, where The first contention resolution message includes location indication information of the transmission request resource; the primary UE transmits the corresponding location of the transmission request resource in the group random access time window according to the location information of the user in the user group and the location indication information of the foregoing transmission request resource. Sending a transmission request message to the network side device; the primary UE receives the transmission request response message sent by the network side device in the group random access time window to complete the random access process. Therefore, in the case that the primary UE has a transmission requirement, the access completion notification message received by the primary UE in the group random access time window is the transmission request response message returned by the network side device.

Further optionally, the transmission request response message returned by the network side device includes information of the UE with the transmission requirement. The network side device further indicates the information of the UE with the transmission requirement by transmitting the demand request response message, which is beneficial for the UEs with the transmission requirement to determine that the random access has been successfully completed. Data transfer is possible.

 The second processing mode of the network-side device is the same as that of the primary UE, and is not described in detail here, and will be described in detail in subsequent embodiments.

 In the foregoing embodiment, the transmission request message sent by the UE having the transmission requirement to the network side device may be, but not limited to, activation information of one symbol.

 Whether the first UE is based on the first processing manner of the network side device or the second processing method based on the network side device, when the primary UE has a data transmission requirement, when the primary UE receives the group random access time window, The access completion advertisement message sent by the network side device (for the first processing mode, the access completion advertisement message here is the first contention resolution message; for the second processing mode, the access completion notification message here is the transmission request After the random access procedure is completed, the primary UE may receive the transmission resource indication information sent by the network side device according to the location information in the user group, and perform data on the transmission resource indicated by the transmission resource indication information. transmission.

 Optionally, the radio network temporary identifier used by the primary UE to perform data transmission on the transmission resource indicated by the foregoing transmission resource indication information may be public information, or a cell radio network temporary identifier (C-RNTI) of the user group, or The preset determines the rules. The public information here refers to information that is previously known to all UEs in the user group, such as the ID of the user group, the ID of the primary UE, the serial number, and the like.

 Further, the preset determination rule may be formed by combining the public information with the ID of the primary UE, or by combining the C-RNTI of the user group with the ID of the primary UE, but is not limited thereto.

 In an optional implementation manner, the transmission requirement indication information sent by the primary UE to the network side device includes start location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group. In this embodiment, the UE having the transmission requirement is the UE indicated by the number of UEs having the transmission requirement starting from the starting position of the UE having the transmission requirement.

In this implementation manner, the processing manner of the network side device includes: after receiving the layer 2/layer 3 message, the network side device obtains the transmission requirement indication information, according to the starting location information of the UE with the transmission requirement, and has the transmission requirement. The number of UEs and the identifier of the user group, the information of the UE having the transmission requirement in the user group is obtained; the network side device returns the second contention resolution message after receiving the layer 2/layer 3 message to notify the user group The UE completes the random access procedure; the second contention resolution message includes the start location information of the UE with the transmission requirement, and the UE with the transmission requirement The number and identity of the user group. For each UE in the user group, it is determined whether there is a transmission requirement according to the information carried in the second contention resolution message. For example, if the UE determines that it belongs to the user group, and after the start position of the UE with the transmission requirement, and within the UE indicated by the number of UEs with the transmission requirement, it may determine that it belongs to the UE with the transmission requirement. .

 Based on the processing manner of the network side device, the primary UE receives the access completion advertisement message in the group random access time window regardless of whether it has a transmission requirement, and the network side device receives the layer 2 a second contention resolution message returned after the layer 3 message, the second contention resolution message including start location information of the UE with transmission requirements, the number of UEs with transmission requirements, and the user group Logo. Similarly, for the secondary UE, regardless of whether there is a transmission requirement, the access completion notification message received by the secondary UE in the group random access time window is returned by the network side device after receiving the layer 2/layer 3 message. The second competition resolved the news.

 It can be seen from the above that in the embodiment, the UE is grouped to form a user group, and for each user group, the primary UE and the secondary UE use the same random access resource, and the primary UE is represented in the group random access time window. All the UEs in the user group initiate a group random access procedure, so that the random access is initiated in the user group unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random connection of the UE is reduced. Enter the time to ensure that the UE starts its business normally.

 FIG. 2 is a flowchart of a contention-based random access method according to another embodiment of the present invention. As shown in FIG. 2, the method of this embodiment includes:

 Step 201: The secondary UE in the user group receives the RAR sent by the network side device in the group random access time window. If the RAR is successfully received in the group random access time window, the secondary UE obtains the temporary information from the RAR. Cell Radio Network Temporary Identity (TC-RNTI).

 The RAR is returned by the network side device after receiving the sequence code sent by the primary UE in the user group on the time-frequency resource in the group random access time window; the primary UE and the secondary UE use the same random access resource. And the secondary UE does not send the sequence code to the network side device in the group random access time window, and does not send the layer 2/layer 3 message, etc., that is, the secondary UE does not initiate to the network side device in the group random access time window. Random access process. The random access resource includes the sequence code and the time-frequency resource.

Step 202: The secondary UE receives the access completion advertisement message sent by the network side device in the group random access time window. If the access completion notification message is successfully received in the group random access time window, the TC-RNTI of the user group is received. a cell radio network temporary identity (CRNTI) as a user group to complete Machine access process.

 The access completion advertisement message is returned after the network side device receives the layer 2/layer 3 message sent by the primary UE in the group random access time window, where the layer 2/layer 3 message includes the transmission requirement indication information. The transmission requirement indication information is used to enable the network side device to learn the information of the UE in the user group that has the transmission requirement.

 In this embodiment, the UE is grouped to form a user group, and each user group includes two or more UEs. The user group can be preset, and it is preferable to select the same type of UE to form the same user group. For example, UEs having the same service type or UEs having the same TA may be selected as the same user group. The size and size of each user group are not limited and may be determined according to the actual application.

 In each user group, one UE is selected in advance as the primary UE, and the other UEs are referred to as secondary UEs. In this embodiment, group random access is performed in units of user groups. The primary UE in each user group initiates a group random access procedure on behalf of the user group, that is, the primary UE is responsible for sending a sequence code (reamble) and a layer 2/layer 3 message to the network side device, and the secondary UE is in the group random access time window. The sequence code and layer 2/layer 3 messages are not sent to the network side device. The members of each user group (including the secondary UE and the primary UE) know in advance the ID of the primary UE and the identification information of the user group. Optionally, the identifier information of the user group may be an ID of the primary UE in the user group, an ID of the user group, or a sequence code used by the user group, but is not limited thereto.

 In this embodiment, a group random access time window is defined for each user group, and each user group initiates group random access to the network side device in its corresponding group random access time window. The group random access time window is actually a time range, for example, it can be from 1 to 1 2 points, from 2:20 to 30 seconds to 2:22 minutes and 10 seconds. The same group random access time window is used for the primary UE and the secondary UE in the user group.

Before the group random access is performed, the primary UE or the secondary UE acquires the used random access time window. Optionally, the user group and the network side device may pre-agreed the group random access time window, and the primary UE and the secondary UE in the user group pre-store the agreed group random access time window. Based on this, the secondary UE and the primary UE can directly obtain the pre-agreed group random access time window locally. Optionally, the network side device may send the indication information of the group random access time window used by the user group to the primary UE and the secondary UE in the user group in real time. Based on this, before the step 201, the secondary UE receives the indication information of the group random access time window sent by the network side device. In addition, the primary UE also receives the network side device. The indication of the group random access time window sent. The primary UE and the secondary UE learn the group random access time window that should be used according to the indication information of the group random access time window sent by the network side device.

 The group random access process is the same for different user groups. Therefore, this embodiment uses one of the user groups as an example for description. Specifically, when the group random access time window is started, the primary UE of the user group sends the sequence code used by the user group to the network side device on the time-frequency resource used by the user group, and initiates a group random access procedure. Since all the members in the user group share the same sequence code and time-frequency resources, all members in the user group can learn the same RAR message, and the RAR message includes information such as TC-RNTI, TA command (Command) and the like. The primary UE in the user group monitors the RAR sent by the network side device in the group random access time window, and receives the RAR corresponding to the user group returned by the network side device after receiving the sequence code; The UE also receives the RAR sent by the network side device in the group random access time window.

 For the primary UE, if the primary UE successfully receives the RAR returned by the network side device in the group random access time window, the uplink transmission time is adjusted according to the TA command in the received RAR, and is performed on the time-frequency resource. The network side device sends a layer 2/layer 3 message, where the layer 2/layer 3 message includes transmission requirement indication information, and is used to enable the network side device to learn information about the UE having the transmission requirement in the user group. It can be seen that the transmission requirement indication information of this embodiment is to be able to indicate the UE having the transmission requirement in the user group, which may be any information that satisfies the requirement. After receiving the layer 2/layer 3 message, the network side device obtains the transmission requirement indication information, and performs corresponding processing on the random access procedure of the user group according to the transmission requirement indication information, and then the user group returns an access completion notification. a message, so that the primary UE and the secondary UE in the user group learn that the group random access procedure is completed. For other descriptions of the primary UE, reference may be made to the embodiment shown in FIG. 1, and details are not described herein again.

 For the secondary UE, if the secondary UE successfully receives the RAR returned by the network side device in the group random access time window, the secondary UE may acquire the TC-RNTI from the received RAR, and will continue to randomly access in the group. The access completion notification message sent by the network side device is received in the time window. After the access completion notification message is successfully received, the TC-RNTI is used as the C-RNTI of the user group, and the random access procedure of the user group is completed. If the secondary UE does not successfully receive the RAR returned by the network side device in the group random access time window, the random access may be separately initiated to the network side device after the group random access time window ends.

In this embodiment, the secondary UE separately initiates the random access to the network side device, which means that the secondary UE initiates the contention-based random access process according to the prior art, and details are not described herein. Before the random access is performed, the secondary UE and the primary UE need to acquire the random access resources used in advance. Optionally, the network side device and the user group pre-agreed the random access resources used by the user group. Based on this, the secondary UE and the primary UE can acquire the pre-agreed random access resources before performing random access. Optionally, the group leader and the secondary UE may further calculate a commonly used random access resource by using public information before performing random access. The public information here may be information known to all members of the user group such as the ID of the user group or the ID of the primary UE.

 In an optional implementation manner, the transmission requirement indication information sent by the primary UE to the network side device includes the number of UEs in the user group where the primary UE is located and the identifier of the user group. In the case that the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group, the cooperation of the network side device is required to implement the indication of the transmission requirement indication information for the UE having the transmission requirement in the user group. This embodiment provides two types of processing methods for the network side devices, but is not limited to the two types. The two processing modes are respectively shown in the following:

 The first processing mode of the network side device includes: after receiving the transmission requirement indication information sent by the primary UE, the network side device can determine, according to the identifier of the user group, which user group has transmission requirements, and on the other hand, the network side The device allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a transmission request message to the UE having the transmission requirement in the user group, and further information about the UE having the transmission requirement in the user group. . Specifically, after receiving the layer 2/layer 3 message, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and after receiving the layer 2/layer 3 message. Returning the contention resolution message, which is recorded as the first contention resolution message, the first contention resolution message includes location indication information of the transmission request resource allocated by the network side device. Here, the location indication information of the transmission request resource may be indicated by three latitudes of a frequency resource, an orthogonal code resource, and a time resource. Then, the network side device further receives a transmission request message sent by the UE having the transmission requirement in the user group according to the location indication information of the transmission request resource at the corresponding location of the transmission request resource.

Based on the first processing manner of the network side device, for the secondary UE, if the secondary UE does not have a transmission requirement, the secondary UE receives the first contention solution that the network side device returns after receiving the layer 2/layer 3 message. After the message, there is no need to send a transmission request message to the network side device. If the secondary UE has a transmission requirement, the implementation process of the foregoing step 202 includes: the secondary UE receiving, in the group random access time window, a first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message, where The first contention resolution message includes location indication information for transmitting the request resource; the secondary UE is in use according to itself The location information in the group and the location indication information of the foregoing transmission request resource send a transmission request message to the network side device at a corresponding location of the transmission request resource in the group random access time window. In this implementation manner, whether the secondary UE has a transmission requirement or no transmission requirement, the access completion notification message received by the secondary UE in the group random access time window is that the network side device returns after receiving the layer 2/layer 3 message. The first contention resolution message, the first contention resolution message includes location indication information for transmitting the request resource.

 For the operation of the primary UE, refer to the description of the embodiment shown in FIG. 1 , and details are not described herein again.

 The second processing mode of the network side device includes: after receiving the transmission requirement indication information sent by the primary UE, the network side device may determine, according to the identifier of the user group, which user group has transmission requirements, and on the other hand, the network side The device allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a transmission request message to the UE having the transmission requirement in the user group, and further information about the UE having the transmission requirement in the user group. . Specifically, after receiving the layer 2/layer 3 message, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and after receiving the layer 2/layer 3 message. Returning the contention resolution message, which is recorded as the first contention resolution message, the first contention resolution message includes location indication information of the transmission request resource allocated by the network side device. Here, the location indication information of the transmission request resource may be indicated by three latitudes of a frequency resource, an orthogonal code resource, and a time resource. Then, the network side device further receives a transmission request message sent by the UE having the transmission requirement in the user group according to the location indication information of the transmission request resource at the corresponding location of the transmission request resource. After receiving the transmission request message sent by the UE with the transmission request, the network side device also returns a transmission request response message to inform the UE having the transmission requirement that the random access procedure is successfully completed.

 It is noted that the second processing mode of the network side device is different from the first processing mode in that: after receiving the transmission request message sent by the UE with the transmission requirement, the network side device returns a transmission request response message.

Based on the second processing manner of the network side device, for the secondary UE, if the secondary UE does not have a transmission requirement, the secondary UE receives the first contention solution that the network side device returns after receiving the layer 2/layer 3 message. After the message is sent, the transmission request message is not sent to the network side device, and the transmission request response message returned by the network side device is not received. Therefore, in the case that the secondary UE has no transmission requirement, the access completion notification message received by the secondary UE in the group random access time window is the network. The first contention resolution message returned by the side device after receiving the layer 2/layer 3 message, where the first contention resolution message includes location indication information of the transmission request resource.

 If the secondary UE has a transmission requirement, the implementation process of the foregoing step 202 includes: receiving, by the secondary UE, a first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window, where The first contention resolution message includes location indication information of the transmission request resource; the secondary UE transmits the corresponding location of the transmission request resource in the group random access time window according to the location information of the user in the user group and the location indication information of the foregoing transmission request resource. Sending a transmission request message to the network side device; the secondary UE receives the transmission request response message sent by the network side device in the group random access time window to complete the random access process. Therefore, in the case that the secondary UE has a transmission requirement, the access completion notification message received by the secondary UE in the group random access time window is the transmission request response message returned by the network side device.

 Further optionally, the transmission request response message returned by the network side device includes a transmission request

UE information. The network side device further indicates the information of the UE having the transmission requirement by transmitting the demand request response message, which is beneficial for the UEs having the transmission requirement to determine that the random access has been successfully completed and the data transmission can be performed.

 For the operation of the primary UE, refer to the description of the embodiment shown in FIG. 1 , and details are not described herein again.

 In the foregoing embodiment, the transmission request message sent by the UE having the transmission requirement to the network side device may be, but not limited to, activation information of one symbol.

 Whether the secondary UE has the data transmission requirement in the case that the secondary UE has the data transmission requirement, and the secondary UE receives the data in the group random access time window, whether it is based on the first processing manner of the network side device or the second processing manner based on the network side device. The access completion advertisement message sent by the network side device (for the first processing mode, the access completion advertisement message here is the first contention resolution message; for the second processing mode, the access completion notification message here is the transmission After the random access procedure is completed, the secondary UE may receive the transmission resource indication information sent by the network side device according to the location information of the user group, and perform the transmission resource indicated by the transmission resource indication information. data transmission.

Optionally, the radio network temporary identifier used by the secondary UE to perform data transmission on the transmission resource indicated by the foregoing transmission resource indication information may be public information, or a C-RNTI of the user group, or determined according to a preset determination rule. The public information here refers to all UEs in the user group obtained in advance. Known information, such as the ID of the user group, the ID of the primary UE, the serial number, and the like.

 Further, the preset determination rule may be formed by combining the public information with the ID of the primary UE, or by combining the C-RNTI of the user group with the ID of the primary UE, but is not limited thereto.

 In an optional implementation manner, the transmission requirement indication information sent by the primary UE to the network side device includes start location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group. In this embodiment, the UE having the transmission requirement is the UE indicated by the number of UEs having the transmission requirement starting from the starting position of the UE having the transmission requirement. This embodiment is especially applicable to an application scenario in which a primary UE specifies a UE with a transmission requirement, that is, a UE having a transmission requirement is passively transmitting data.

 In this implementation manner, the processing manner of the network side device includes: after receiving the layer 2/layer 3 message, the network side device obtains the transmission requirement indication information, according to the starting location information of the UE with the transmission requirement, and has the transmission requirement. The number of UEs and the identifier of the user group, the information of the UE having the transmission requirement in the user group is obtained; the network side device returns the second contention resolution message after receiving the layer 2/layer 3 message to notify the user group The UE completes the random access procedure; the second contention resolution message includes the start location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group. For each UE in the user group, it can determine whether there is a transmission requirement according to the information carried in the second contention resolution message. For example, if the UE determines that it belongs to the user group, and after the start position of the UE with the transmission requirement, and within the UE indicated by the number of UEs with the transmission requirement, it may determine that it belongs to the UE with the transmission requirement. .

 Based on the processing manner of the network side device, for the secondary UE, the access completion notification message received by the secondary UE in the group random access time window is the network side device receiving the layer 2, regardless of whether there is a transmission requirement. a second contention resolution message returned after the layer 3 message, the second contention resolution message including start location information of the UE with transmission requirements, the number of UEs with transmission requirements, and the user group Logo.

 It can be seen from the above that in the embodiment, the UE is grouped to form a user group, and for each user group, the primary UE and the secondary UE use the same random access resource, and the primary UE is represented in the group random access time window. All the UEs in the user group initiate a group random access procedure, so that the random access is initiated in the user group unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random connection of the UE is reduced. Enter the time to ensure that the UE starts its business normally.

FIG. 3 is a flowchart of a contention-based random access method according to still another embodiment of the present invention. As shown in FIG. 3, the method in this embodiment includes: Step 301: The network side device receives a layer 2/layer 3 message sent by the primary UE in the user group in a group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information.

 The primary UE and the secondary UE in the user group use the same random access resource, and the secondary UE does not send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, and does not send the layer 2 / Layer 3 message, that is, the secondary UE does not initiate a random access procedure to the network side device in the group random access time window. The random access resource includes the sequence code and a time-frequency resource used for sending the sequence code.

 Step 302: The network side device learns, according to the foregoing transmission requirement indication information, information about a UE having a transmission requirement in the user group, and returns an access completion notification message after receiving the layer 2/layer 3 message, to notify the UE in the user group. Complete the random access process.

 This embodiment is a description of a contention-based random access procedure from the perspective of a network side device.

In an optional implementation manner, the transmission requirement indication information sent by the primary UE in the user group includes the number of UEs in the user group and the identifier of the user group. In the case that the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group, the cooperation of the network side device is required to implement the indication of the transmission requirement indication information to the UE having the transmission requirement in the user group. This embodiment provides the processing mode of the two network side devices, but is not limited to the two. The two processing modes are as follows: The first processing mode of the network side device includes: The network side device receives the primary UE. After the transmission requirement indication information is sent, on the one hand, according to the identifier of the user group, it can be determined which user group has a transmission requirement, and on the other hand, the network side device allocates a transmission request resource for the user group according to the number of UEs in the user group. And transmitting, by the UE having the transmission requirement in the user group, a transmission request message, and further information about the UE having the transmission requirement in the user group. Based on this, step 302 specifically includes: after receiving the layer 2/layer 3 message, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and receives the layer 2 And after the layer 3 message returns a first contention resolution message, where the first contention resolution message includes location indication information of the transmission request resource allocated by the network side device, where the location indication information of the transmission request resource may be a frequency resource, The cross-code resource and the time resource are instructed by three latitudes; afterwards, the network side device further receives the transmission that is sent by the UE with the transmission requirement in the user group according to the location indication information of the transmission request resource at the corresponding location of the transmission request resource. Request message. In the processing mode, the first contention resolution message returned by the network side device is the access completion notification message. The second processing mode of the network side device includes: after receiving the transmission requirement indication information sent by the primary UE, the network side device may determine, according to the identifier of the user group, which user group has transmission requirements, and on the other hand, the network side The device allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a transmission request message to the UE having the transmission requirement in the user group, and further information about the UE having the transmission requirement in the user group. . Based on this, step 302 specifically includes: after receiving the layer 2/layer 3 message, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and receives the layer 2 And after the layer 3 message returns a first contention resolution message, where the first contention resolution message includes location indication information of the transmission request resource allocated by the network side device, where the location indication information of the transmission request resource may be a frequency resource, The cross-code resource and the time resource are instructed by three latitudes; afterwards, the network side device further receives the transmission that is sent by the UE with the transmission requirement in the user group according to the location indication information of the transmission request resource at the corresponding location of the transmission request resource. The request message; after receiving the transmission request message sent by the UE with the transmission requirement, the network side device also returns a transmission request response message to inform the UE with the transmission requirement that the random access procedure is successfully completed. In this processing mode, the transmission request response message returned by the network side device is the access completion notification message.

 Further optionally, the transmission request response message returned by the network side device includes information of the UE with the transmission requirement. The network side device further indicates the information of the UE having the transmission requirement by transmitting the demand request response message, which is beneficial for the UEs having the transmission requirement to determine that the random access has been successfully completed and the data transmission can be performed.

 In an optional implementation manner, the transmission requirement indication information sent by the primary UE to the network side device includes start location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group. In this implementation manner, the processing manner of the network side device includes: after receiving the layer 2/layer 3 message, the network side device obtains the transmission requirement indication information, according to the starting location information of the UE with the transmission requirement, and has the transmission requirement. The number of UEs and the identifier of the user group, the information of the UE having the transmission requirement in the user group is obtained; the network side device returns the second contention resolution message after receiving the layer 2/layer 3 message to notify the user group The UE completes the random access procedure; the second contention resolution message includes the start location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group. In the processing mode, the second contention resolution message returned by the network side device is the access completion notification message.

Optionally, the network side device sends a group random access time window indication message to the UE in the user group. Interest. Alternatively, the network side device pre-arranges a group random access time window with the UE in the user group.

 In an optional implementation manner, the network side device may temporarily maintain a list for the user group, where the list indicates which UEs in the user group have transmission requirements and which UEs do not have transmission requirements. This list corresponds to the allocated transmission request resource. For example, the network side device can establish a bit mapping table, set the bit corresponding to the UE with the transmission requirement to 1, and set the bit corresponding to the UE without the transmission requirement to 0. The network side device is a user group temporary maintenance list, and the temporary list is used to store information of the UEs having data transmission requirements in the user group, and only the transmission resources are allocated to the UEs in the temporary list, instead of all the UEs in the user group are allocated transmissions. The resource saves the transmission resources allocated to the UE without the data transmission requirement, reduces the waste of the transmission resources, and further stores all the information of the user group by temporarily maintaining the list for the user group instead of the user group information base. Flexibility.

 It can be seen from the above that in the embodiment, the UE is grouped to form a user group, and for each user group, the primary UE and the secondary UE use the same random access resource, and the primary UE is represented in the group random access time window. All the UEs in the user group initiate a group random access procedure, so that the random access is initiated in the user group unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random connection of the UE is reduced. Enter the time to ensure that the UE starts its business normally.

 FIG. 4A is a flowchart of a contention-based random access method according to still another embodiment of the present invention. In this embodiment, a network device is used as a base station as an example for description. As shown in FIG. 4A, the method in this embodiment includes:

 Step 4a: The primary UE sends a dedicated sequence code to the base station in the group random access time window.

 Step 4b: The base station sends an RAR to the primary UE and the secondary UE.

 Step 4c: The primary UE and the secondary UE listen to the RAR sent by the base station in the group random access time window, where the secondary UE acquires the TC-RNTI from the RAR after listening to the RAR in the group random access time window.

 Step 4d: After receiving the RAR in the group random access time window, the primary UE sends a layer 2/layer 3 message to the base station, where the layer 2/layer 3 message includes transmission requirement indication information. In this embodiment, the transmission requirement indication information includes the number of UEs in the user group in which the primary UE is located and the identification information of the user group in which the primary UE is located as an example.

Step 4e: After receiving the layer 2/layer 3 message, the base station allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a contention resolution message to the primary UE and the secondary UE, and passes the competition. The resolution message sends the location indication information of the transmission request resource assigned to the user group to The primary UE and the secondary UE, so that the UE having the data transmission requirement in the primary UE and the secondary UE sends a transmission request message at a corresponding position of the transmission request resource according to the location indication information of the transmission request resource.

 Step 4f: The primary UE and the secondary UE listen to the contention resolution message sent by the base station in the group random access time window, where the secondary UE listens to the contention resolution message in the group random access time window, and then uses the TC-RNTI As the C-RNTI of the user group in which it is located.

 The contention resolution message here is equivalent to the first contention resolution message in the foregoing embodiment.

 Step 4g: the UE that needs to transmit data in the secondary UE and the primary UE (referred to as the UE with the transmission requirement), according to the location indication information of the transmission request resource in the foregoing contention resolution message, to the base station at the corresponding location of the transmission request resource Send a transfer request message. In this embodiment, a UE having a data transmission requirement is used as a secondary UE as an example for description.

 Step 4h: The base station receives the transmission request message sent by the UE with the data transmission requirement, and obtains information about all the UEs in the user group that have the transmission requirement according to the transmission request message of the UE.

 Step 4i: The base station sends a transmission request response message, where the transmission request response message includes transmission requirement notification information, and the transmission requirement notification information is used to indicate information of the UE having the transmission requirement.

 After receiving the transmission request response message sent by the base station, the UE having the data transmission requirement can determine that the random access procedure is completed.

 It is noted that the foregoing step 4i is an optional step, that is, after the base station receives the transmission request message sent by the UE with the transmission requirement, the base station may not return the transmission request response message.

 Subsequently, the base station may allocate transmission resources to the UEs with transmission requirements in the user group, and send the transmission resource indication information to the UEs with transmission requirements; and the UEs with transmission requirements perform data on the transmission resources supported by the transmission resource indication information. transmission.

 This embodiment describes a contention-based random access method from the perspective of interaction between a secondary UE, a primary UE, and a base station in a user group. In this embodiment, the UE is grouped to form a user group, and for each user group, the primary UE and the secondary UE use the same random access resource, and the primary UE represents the user group in the group random access time window. All the UEs initiate a random access procedure, so that the random access is initiated in the user group as a unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random access time of the UE is reduced, thereby ensuring the UE. Conduct business normally.

FIG. 4B is a flowchart of a contention-based random access method according to still another embodiment of the present invention. In this embodiment, a network device is used as a base station as an example for description. As shown in FIG. 4B, the method in this embodiment includes: Step 5a: The primary UE sends a dedicated sequence code to the base station in the group random access time window.

 Step 5b: The base station sends an RAR to the primary UE and the secondary UE.

 Step 5c: The primary UE and the secondary UE listen to the RAR sent by the base station in the group random access time window, where the secondary UE acquires the TC-RNTI from the RAR after listening to the RAR in the group random access time window.

 Step 5d: After receiving the RAR in the group random access time window, the primary UE sends a layer 2/layer 3 message to the base station, where the layer 2/layer 3 message includes transmission requirement indication information. In this embodiment, the transmission requirement indication information includes the start location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group as an example.

 Step 5e: After receiving the layer 2/layer 3 message, the base station returns a contention resolution message, where the contention resolution message includes the start location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the user group. Logo.

 The contention resolution message here is equivalent to the second contention resolution message in the foregoing embodiment.

 After receiving the contention resolution message sent by the base station, the UE may determine that it has a transmission requirement, and then determine to complete the random access procedure.

 Subsequently, the base station may allocate transmission resources to the UEs with transmission requirements in the user group, and send the transmission resource indication information to the UEs with transmission requirements; and the UEs with transmission requirements perform data on the transmission resources supported by the transmission resource indication information. transmission.

 This embodiment describes a contention-based random access method from the perspective of interaction between a secondary UE, a primary UE, and a base station in a user group. In this embodiment, the UE is grouped to form a user group, and for each user group, the primary UE and the secondary UE use the same random access resource, and the primary UE represents the user group in the group random access time window. All the UEs initiate a random access procedure, so that the random access is initiated in the user group as a unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random access time of the UE is reduced, thereby ensuring the UE. Conduct business normally.

 FIG. 5 is a flowchart of a non-contention based random access method according to an embodiment of the present invention. As shown in FIG. 5, the method of this embodiment includes:

 Step 501: The primary UE in the user group sends the sequence code and the transmission requirement indication information to the network side device in the group random access time window, where the transmission requirement indication information is used to enable the network side device to learn the UE with the transmission requirement in the user group. Information.

The primary UE and the secondary UE in the user group use the same random access resource, and the secondary UE does not send the sequence code to the network side device in the group random access time window, and does not send the layer 2/layer 3 message. That is, the secondary UE does not initiate a random access procedure to the network side device in the group random access time window. The random access resource includes the sequence code and a time-frequency resource used by the sequence code.

 Step 502: The primary UE receives an access completion notification message returned by the network side device after receiving the sequence code in the group random access time window, to complete the random access process.

 In this embodiment, the UE is grouped to form a user group, and each user group includes two or more UEs. The user group can be preset, and it is preferable to select the same type of UE to form the same user group. For example, UEs having the same service type or UEs having the same TA may be selected as the same user group. The size and size of each user group are not limited and may be determined according to the actual application.

 In each user group, one UE is selected in advance as the primary UE, and the other UEs are referred to as secondary UEs. In this embodiment, group random access is performed in units of user groups. The primary UE in each user group initiates a group random access procedure on behalf of the user group, that is, the primary UE is responsible for sending a sequence code (reamble) to the network side device, and the secondary UE does not send the network code to the network side device in the group random access time window. Sequence code and transmission requirement indication information, and layer 2/layer 3 messages are also not sent. The members of each user group (including the secondary UE and the primary UE) know in advance the ID of the primary UE and the identification information of the user group. Optionally, the identifier information of the user group may be an ID of the primary UE in the user group, an ID of the user group, or a sequence code used by the user group, but is not limited thereto.

 In this embodiment, a group random access time window is defined for each user group, and each user group initiates group random access to the network side device in its corresponding group random access time window. The group random access time window is actually a time range, for example, it can be from 1 to 1 2 points, from 2:20 to 30 seconds to 2:22 minutes and 10 seconds. The same group random access time window is used for the primary UE and the secondary UE in the user group.

Before the group random access is performed, the primary UE or the secondary UE acquires the used random access time window. Optionally, the user group and the network side device may pre-agreed the group random access time window, and the primary UE and the secondary UE in the user group pre-store the agreed group random access time window. Based on this, the secondary UE and the primary UE can directly obtain the pre-agreed group random access time window locally. Optionally, the network side device may send the indication information of the group random access time window used by the user group to the primary UE and the secondary UE in the user group in real time. Based on this, before the step 501, the primary UE receives the indication information of the group random access time window sent by the network side device. In addition, the secondary UE also receives the indication information of the group random access time window sent by the network side device. The primary UE and the secondary UE are sent according to the network side device. The group random access time window indication information is used to know the group random access time window that should be used.

 In addition, before performing group random access, the primary UE or the secondary UE acquires the used random access resources. Optionally, the user group and the network side device may pre-agreed the used random access resources, and the primary UE and the secondary UE in the user group pre-store the agreed random access resources. Based on this, the secondary UE and the primary UE can directly obtain the pre-agreed random access resources locally. Optionally, the network side device may send, to the primary UE and the secondary UE in the user group, indication information of the random access resource used by the user group in advance. Based on this, before the step 501, the primary UE receives the indication information of the random access resource sent by the network side device. In addition, the secondary UE also receives the indication information of the random access resource sent by the network side device. The primary UE and the secondary UE learn the random access resources that should be used according to the indication information of the random access resources sent by the network side device. Optionally, the secondary UE and the primary UE may calculate the random access resource by using the public information. The public information herein refers to information that both the secondary UE and the primary UE know, such as the ID of the user group or the ID of the primary UE.

 The group random access process is the same for different user groups. Therefore, this embodiment uses one of the user groups as an example for description. Specifically, when the group random access time window is enabled, the primary UE of the user group sends the dedicated sequence code and transmission requirement indication information used by the user group to the network side device on the time-frequency resource used by the user group, and initiates Group random access process. The transmission requirement indication information is used to enable the network side device to obtain information about the UE having the transmission requirement in the user group. It can be seen that the transmission requirement indication information of this embodiment is to be able to indicate the UE having the transmission requirement in the user group, which may be any information that satisfies the requirement. After receiving the transmission requirement indication information sent by the primary UE, the network side device performs corresponding processing on the random access procedure of the user group according to the transmission requirement indication information, and then the user group returns an access completion notification message, so that the user group The primary UE and the secondary UE in the learned group complete the random access procedure. Since all members in the user group share the same sequence code and time-frequency resources, all members in the user group can learn the same access completion notification message.

 For the primary UE and the secondary UE, the access completion advertisement message sent by the network side device is received in the group random access time window, and if the access completion notification message is successfully received in the group random access time window, the information is learned. The random access process is completed.

In an optional implementation manner, the transmission requirement indication information that is sent by the primary UE to the network side device includes: the number of UEs in the user group where the primary UE is located, and the identifier of the user group. In the case that the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group, the cooperation of the network side device is required to implement the indication of the transmission requirement indication information to the UE having the transmission requirement in the user group. This implementation For example, the two network side devices cooperate, but they are not limited to the two. The two processing methods are as follows:

 The first processing mode of the network side device includes: after receiving the transmission requirement indication information sent by the primary UE, the network side device can determine, according to the identifier of the user group, which user group has transmission requirements, and on the other hand, the network side The device allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a transmission request message to the UE having the transmission requirement in the user group, and further information about the UE having the transmission requirement in the user group. . Specifically, after receiving the transmission requirement indication message, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and returns the RAR after receiving the sequence code and the transmission requirement indication information. It is recorded as a first RAR, where the first RAR includes location indication information of a transmission request resource allocated by the network side device. Here, the location indication information for transmitting the request resource may be indicated by three latitudes of a frequency resource, an orthogonal code resource, and a time resource. Then, the network side device further receives a transmission request message sent by the UE having the transmission requirement in the user group according to the location indication information of the transmission request resource at the corresponding location of the transmission request resource.

 Based on the first processing manner of the foregoing network side device, if the primary UE does not have a transmission requirement, the primary UE receives the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information. , there is no need to send a transmission request message to the network side device. If the primary UE has a transmission requirement, the implementation process of the foregoing step 502 includes: receiving, by the primary UE, the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information in the group random access time window, the first RAR The location indication information of the transmission request resource is included; the primary UE sends the location information in the user group and the location indication information of the foregoing transmission request resource to the network side device in the corresponding location of the transmission request resource in the group random access time window. Transfer request message. In this embodiment, whether the primary UE has a transmission requirement or no transmission requirement, the access completion notification message received by the primary UE in the group random access time window is after the network side device receives the sequence code and the transmission requirement indication information. Returning the first RAR, the first RAR includes location indication information for transmitting the request resource.

 The first processing mode of the network-side device is the same as that of the primary UE, and is not described in detail herein, and will be described in detail in subsequent embodiments.

The second processing mode of the network side device includes: after receiving the transmission requirement indication information sent by the primary UE, the network side device can determine which user group is specific according to the identifier of the user group. On the other hand, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a transmission request message to the UE having the transmission requirement in the user group, thereby obtaining the user. The group has information about the UEs that need to transmit. Specifically, after receiving the transmission requirement indication information, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and returns to the first after receiving the sequence code and the transmission requirement indication information. An RAR, where the first RAR includes location indication information of a transmission request resource allocated by the network side device. Here, the location indication information of the transmission request resource may be indicated by three latitudes of a frequency resource, an orthogonal code resource, and a time resource. Then, the network side device further receives a transmission request message sent by the UE having the transmission requirement in the user group according to the location indication information of the transmission request resource at the corresponding location of the transmission request resource. After receiving the transmission request message sent by the UE with the transmission requirement, the network side device also returns a transmission request response message to inform the UE with the transmission requirement that the random access procedure is successfully completed.

 It is noted that the second processing mode of the network side device is different from the first processing mode in that: after receiving the transmission request message sent by the UE with the transmission requirement, the network side device returns a transmission request response message.

 Based on the second processing mode of the network side device, if the primary UE does not have a transmission requirement, the primary UE receives the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information. The transmission request message does not need to be sent to the network side device, and the transmission request response message returned by the network side device is not received. Therefore, in the case that the primary UE has no transmission requirement, the access completion advertisement message received by the primary UE in the group random access time window is the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information. The first RAR includes location indication information for transmitting a request resource.

If the primary UE has a transmission requirement, the implementation process of the foregoing step 502 includes: receiving, by the primary UE, the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information, the first RAR, in the group random access time window, the first RAR The location indication information of the transmission request resource is included; the primary UE sends the location information in the user group and the location indication information of the foregoing transmission request resource to the network side device in the corresponding location of the transmission request resource in the group random access time window. The transmission request message is received by the primary UE in the group random access time window to complete the random access procedure. Therefore, in the case that the primary UE has a transmission requirement, the access completion notification message received by the primary UE in the group random access time window is the transmission request response cancellation returned by the network side device. Interest.

 Further optionally, the transmission request response message returned by the network side device includes a transmission request

UE information. The network side device further indicates the information of the UE having the transmission requirement by transmitting the demand request response message, which is beneficial for the UEs having the transmission requirement to determine that the random access has been successfully completed and the data transmission can be performed.

 The second processing mode of the network-side device is the same as that of the primary UE, and is not described in detail here, and will be described in detail in subsequent embodiments.

 In the foregoing embodiment, the transmission request message sent by the UE having the transmission requirement to the network side device may be, but not limited to, activation information of one symbol.

 If the primary processing mode is based on the first processing mode of the network side device or the second processing mode based on the network side device, if the primary UE does not correctly receive the first RAR in the RAR receiving time window, the primary UE may retreat after a period of time. Sending the sequence code and the transmission requirement indication information to the network side device; if the primary UE does not correctly receive the first RAR in the group random access time window, the local side device may initiate a random randomization to the network side device after the group random access time window ends. Access. Here, the RAR reception time window is different from the group random access time window, and the RAR reception time window is smaller than the group random access time window.

 Whether the first UE is based on the first processing manner of the network side device or the second processing method based on the network side device, when the primary UE has a data transmission requirement, when the primary UE receives the group random access time window, The access completion advertisement message sent by the network side device (for the first processing mode, the access completion advertisement message here is the first RAR; for the second processing mode, the access completion advertisement message here is the transmission request response message) After the random access procedure is completed, the primary UE may receive the transmission resource indication information sent by the network side device according to the location information in the user group, and perform data transmission on the transmission resource indicated by the transmission resource indication information.

 Optionally, the radio network temporary identifier used by the primary UE to perform data transmission on the transmission resource indicated by the foregoing transmission resource indication information may be public information, or a C-RNTI of the user group, or determined according to a preset determination rule. The public information herein refers to information that is previously known to all UEs in the user group, such as the ID of the user group, the ID of the primary UE, and the serial number.

 Further, the preset determination rule may be formed by combining the public information with the ID of the primary UE, or by combining the C-RNTI of the user group with the ID of the primary UE, but is not limited thereto.

In an optional implementation manner, the transmission requirement indication packet sent by the primary UE to the network side device The start location information of the UE including the transmission requirement, the number of UEs having the transmission requirement, and the identifier of the user group. In this embodiment, the UE having the transmission requirement is the UE indicated by the number of UEs having transmission requirements starting from the start position of the UE having the transmission requirement. This embodiment is especially applicable to an application scenario in which a primary UE specifies a UE with a transmission requirement, that is, a UE having a transmission requirement is passively transmitting data.

 In this implementation manner, the processing manner of the network side device includes: after receiving the sequence code and the transmission requirement indication information sent by the primary UE, the network side device, according to the transmission requirement indication information, has the start location information of the UE with the transmission requirement, and The number of the UEs that need to be transmitted and the identifier of the user group are obtained, and the information of the UE having the transmission requirement in the user group is obtained; the network side device returns the second RAR after receiving the sequence code and the transmission requirement indication information, to notify the user group The UE completes the random access procedure; the second RAR includes the starting location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group. For each UE in the user group, it can determine whether there is a transmission requirement according to the information carried in the second RAR. For example, if the UE determines that it belongs to the user group, after the start position of the UE with the transmission requirement, and within the UE indicated by the number of UEs with the transmission requirement, it may be determined that it belongs to the UE with the transmission requirement.

 Based on the processing manner of the network side device, for the primary UE, regardless of whether there is a transmission requirement, the access completion notification message received by the primary UE in the group random access time window is that the network side device receives the sequence code. And a second RAR returned after transmitting the demand indication information, where the second RAR includes start location information of the UE with transmission requirements, the number of UEs with transmission requirements, and an identifier of the user group. Similarly, for the secondary UE, regardless of whether there is a transmission requirement, the access completion notification message received by the secondary UE in the group random access time window is after the network side device receives the sequence code and the transmission requirement indication information. The second RAR returned.

 Optionally, if the primary UE does not correctly receive the second RAR in the RAR receiving time window, the primary terminal may retransmit the sequence code and the transmission requirement indication information to the network side device after a period of time; if the primary UE is in the group random access time window If the second RAR is not correctly received, the random access may be separately initiated to the network side device after the group random access time window ends.

It can be seen from the above that in the embodiment, the UE is grouped to form a user group, and for each user group, the primary UE and the secondary UE use the same random access resource, and the primary UE is represented in the group random access time window. All the UEs in the user group initiate a group random access procedure, so that the random access is initiated in the user group unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random connection of the UE is reduced. Enter the time to ensure that the UE starts its business normally. FIG. 6 is a flowchart of a non-contention based random access method according to another embodiment of the present invention. As shown in FIG. 6, the method in this embodiment includes:

 Step 601: The secondary UE in the user group receives the access completion notification message sent by the network side device in the group random access time window.

 The access completion advertisement message is returned by the network side device after receiving the sequence code and the transmission requirement indication information sent by the primary UE in the user group on the time-frequency resource in the group random access time window. The primary UE and the secondary UE use the same random access resource, and the secondary UE does not send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, and does not send the layer 2/layer 3 message, that is, The secondary UE does not initiate a random access procedure to the network side device in the group random access time window. The random access resource includes the sequence code and the time-frequency resource.

 Step 602: If the access completion notification message is successfully received in the group random access time window, the secondary UE determines to complete the random access procedure according to the access completion notification message.

 In this embodiment, the UE is grouped to form a user group, and each user group includes two or more UEs. The user group can be preset, and it is preferable to select the same type of UE to form the same user group. For example, UEs having the same service type or UEs having the same TA may be selected as the same user group. The size and size of each user group are not limited and may be determined according to the actual application.

 In each user group, one UE is selected in advance as the primary UE, and the other UEs are referred to as secondary UEs. In this embodiment, group random access is performed in units of user groups. The primary UE in each user group initiates a group random access procedure on behalf of the user group, that is, the primary UE is responsible for sending a sequence code (reamble) and transmission requirement indication information to the network side device, and the secondary UE does not within the group random access time window. The sequence code and the transmission requirement indication information are sent to the network side device. The members of each user group (including the secondary UE and the primary UE) know in advance the ID of the primary UE and the identification information of the user group. Optionally, the identifier information of the user group may be an ID of the primary UE in the user group, an ID of the user group, or a sequence code used by the user group, but is not limited thereto.

In this embodiment, a group random access time window is defined for each user group, and each user group initiates group random access to the network side device in its corresponding group random access time window. The group random access time window is actually a time range, for example, from 1 point to 1 point 2 minutes, from 2:20 minutes 30 seconds to 2:22 minutes 10 seconds. The same group random access time window is used for the primary UE and the secondary UE within the user group. Before the group random access is performed, the primary UE or the secondary UE acquires the used random access time window. Optionally, the user group and the network side device may pre-agreed the group random access time window, and the primary UE and the secondary UE in the user group pre-store the agreed group random access time window. Based on this, the secondary UE and the primary UE can directly obtain the pre-agreed group random access time window locally. Optionally, the network side device may send the indication information of the group random access time window used by the user group to the primary UE and the secondary UE in the user group in real time. Based on this, before the step 501, the primary UE receives the indication information of the group random access time window sent by the network side device. In addition, the secondary UE also receives the indication information of the group random access time window sent by the network side device. The primary UE and the secondary UE learn the group random access time window that should be used according to the indication information of the group random access time window sent by the network side device.

 In addition, the primary UE or the secondary UE acquires the random access resources used before performing group random access. Optionally, the user group and the network side device may pre-agreed the used random access resources, and the primary UE and the secondary UE in the user group pre-store the agreed random access resources. Based on this, the secondary UE and the primary UE can directly obtain the pre-agreed random access resources locally. Optionally, the network side device may send, to the primary UE and the secondary UE in the user group, indication information of the random access resource used by the user group in advance. Based on this, before the step 501, the primary UE receives the indication information of the random access resource sent by the network side device. In addition, the secondary UE also receives the indication information of the random access resource sent by the network side device. The primary UE and the secondary UE learn the random access resources that should be used according to the indication information of the random access resources sent by the network side device. Optionally, the secondary UE and the primary UE may calculate the random access resource by using the public information. The public information herein refers to information that both the secondary UE and the primary UE know, such as the ID of the user group or the ID of the primary UE.

For the different user groups, the group random access process is the same. Therefore, this embodiment uses one of the user groups as an example for description. Specifically, when the group random access time window is enabled, the primary UE of the user group sends the dedicated sequence code and transmission requirement indication information used by the user group to the network side device on the time-frequency resource used by the user group, and initiates Group random access process. The transmission requirement indication information is used to enable the network side device to obtain information about the UE having the transmission requirement in the user group. It can be seen that the transmission requirement indication information of this embodiment is to be able to indicate the UE having the transmission requirement in the user group, which may be any information that satisfies the requirement. After receiving the transmission requirement indication information sent by the primary UE, the network side device performs corresponding processing on the random access procedure of the user group according to the transmission requirement indication information, and then the user group returns an access completion notification message, so that the user group The primary UE and the secondary UE in the learned group complete the random access procedure. Since all members in the user group share the same sequence code and time-frequency resources, Therefore, all members in the user group can learn the same access completion notification message.

 For the primary UE and the secondary UE, the access completion advertisement message sent by the network side device is received in the group random access time window, and if the access completion notification message is successfully received in the group random access time window, the information is learned. The random access process is completed.

 In an optional implementation manner, the transmission requirement indication information that is sent by the primary UE to the network side device includes: the number of UEs in the user group where the primary UE is located, and the identifier of the user group. In the case that the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group, the cooperation of the network side device is required to implement the indication of the transmission requirement indication information to the UE having the transmission requirement in the user group. This embodiment provides two types of network side device cooperation, but is not limited to these two types. The two processing methods are as follows:

 The first processing mode of the network side device includes: after receiving the transmission requirement indication information sent by the primary UE, the network side device can determine, according to the identifier of the user group, which user group has transmission requirements, and on the other hand, the network side The device allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a transmission request message to the UE having the transmission requirement in the user group, and further information about the UE having the transmission requirement in the user group. . Specifically, after receiving the transmission requirement indication message, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and returns the RAR after receiving the sequence code and the transmission requirement indication information. It is recorded as a first RAR, where the first RAR includes location indication information of a transmission request resource allocated by the network side device. Here, the location indication information for transmitting the request resource may be indicated by three latitudes of a frequency resource, an orthogonal code resource, and a time resource. Then, the network side device further receives a transmission request message sent by the UE having the transmission requirement in the user group according to the location indication information of the transmission request resource at the corresponding location of the transmission request resource.

Based on the first processing manner of the foregoing network side device, if the secondary UE does not have a transmission requirement, the secondary UE receives the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information. , there is no need to send a transmission request message to the network side device. If the secondary UE has the transmission requirement, the implementation process of the foregoing step 602 includes: receiving, by the secondary UE, the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information in the group random access time window, the first RAR The location indication information of the transmission request resource is included; the secondary UE sends the location information in the user group and the location indication information of the foregoing transmission request resource to the network side device in the corresponding location of the transmission request resource in the group random access time window. Transfer request message. In the real In the implementation manner, whether the secondary UE has a transmission requirement or no transmission requirement, the access completion notification message received by the secondary UE in the group random access time window is returned by the network side device after receiving the sequence code and the transmission requirement indication information. a first RAR, the first RAR includes location indication information for transmitting a request resource.

 For the operation of the primary UE, refer to the description of the embodiment shown in FIG. 5, and the details are not described herein again.

 The second processing mode of the network side device includes: after receiving the transmission requirement indication information sent by the primary UE, the network side device may determine, according to the identifier of the user group, which user group has transmission requirements, and on the other hand, the network side The device allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a transmission request message to the UE having the transmission requirement in the user group, and further information about the UE having the transmission requirement in the user group. . Specifically, after receiving the transmission requirement indication information, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and returns to the first after receiving the sequence code and the transmission requirement indication information. An RAR, where the first RAR includes location indication information of a transmission request resource allocated by the network side device. Here, the location indication information of the transmission request resource may be indicated by three latitudes of a frequency resource, an orthogonal code resource, and a time resource. Then, the network side device further receives a transmission request message sent by the UE having the transmission requirement in the user group according to the location indication information of the transmission request resource at the corresponding location of the transmission request resource. After receiving the transmission request message sent by the UE with the transmission requirement, the network side device also returns a transmission request response message to inform the UE with the transmission requirement that the random access procedure is successfully completed.

 It is noted that the second processing mode of the network side device is different from the first processing mode in that: after receiving the transmission request message sent by the UE with the transmission requirement, the network side device returns a transmission request response message.

Based on the second processing manner of the network side device, if the secondary UE has no transmission requirement, the secondary UE receives the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information. The transmission request message does not need to be sent to the network side device, and the transmission request response message returned by the network side device is not received. Therefore, in the case that the secondary UE has no transmission requirement, the access completion advertisement message received by the secondary UE in the group random access time window is the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information. The first RAR includes location indication information for transmitting a request resource. If the secondary UE has a transmission requirement, the implementation process of the foregoing step 602 includes: receiving, by the secondary UE, the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information in the group random access time window, where the first The RAR includes location indication information for transmitting the request resource; the secondary UE sends the location information in the user group and the location indication information of the foregoing transmission request resource to the network side device in the corresponding location of the transmission request resource in the group random access time window. Sending a transmission request message; the secondary UE receives the transmission request response message sent by the network side device in the group random access time window to complete the random access procedure. Therefore, in the case that the secondary UE has a transmission requirement, the access completion notification message received by the secondary UE in the group random access time window is a transmission request response message returned by the network side device.

 Further optionally, the transmission request response message returned by the network side device includes a transmission request

UE information. The network side device further indicates the information of the UE having the transmission requirement by transmitting the demand request response message, which is beneficial for the UEs having the transmission requirement to determine that the random access has been successfully completed and the data transmission can be performed.

 For the operation of the primary UE, refer to the description of the embodiment shown in FIG. 5, and details are not described herein again.

 In the foregoing embodiment, the transmission request message sent by the UE having the transmission requirement to the network side device may be, but not limited to, activation information of one symbol.

 Whether the secondary UE has the data transmission requirement in the case that the secondary UE has the data transmission requirement, and the secondary UE receives the data in the group random access time window, whether it is based on the first processing manner of the network side device or the second processing manner based on the network side device. The access completion advertisement message sent by the network side device (for the first processing mode, the access completion advertisement message is the first RAR; for the second processing mode, the access completion advertisement message here is the transmission request response message. After the random access procedure is completed, the secondary UE may receive the transmission resource indication information sent by the network side device according to the location information in the user group, and perform data transmission on the transmission resource indicated by the transmission resource indication information.

 Optionally, the radio network temporary identifier used by the secondary UE to perform data transmission on the transmission resource indicated by the foregoing transmission resource indication information may be public information, or a C-RNTI of the user group, or determined according to a preset determination rule. The public information herein refers to information that is previously known to all UEs in the user group, such as the ID of the user group, the ID of the primary UE, and the serial number.

Further, the preset determination rule may be combined with the ID of the primary UE according to the public information, or may be combined with the ID of the primary UE according to the C-RNTI of the user group, but is not limited thereto. In an optional implementation manner, the transmission requirement indication information that is sent by the primary UE to the network side device includes the start location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group. In this embodiment, the UE having the transmission requirement is the UE indicated by the number of UEs having transmission requirements starting from the start position of the UE having the transmission requirement. This embodiment is especially applicable to an application scenario in which a primary UE specifies a UE with a transmission requirement, that is, a UE having a transmission requirement is passively transmitting data.

 In this implementation manner, the processing manner of the network side device includes: after receiving the sequence code and the transmission requirement indication information sent by the primary UE, the network side device, according to the transmission requirement indication information, has the start location information of the UE with the transmission requirement, and The number of the UEs that need to be transmitted and the identifier of the user group are obtained, and the information of the UE having the transmission requirement in the user group is obtained; the network side device returns the second RAR after receiving the sequence code and the transmission requirement indication information, to notify the user group The UE completes the random access procedure; the second RAR includes the starting location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group. For each UE in the user group, it can determine whether there is a transmission requirement according to the information carried in the second RAR. For example, if the UE determines that it belongs to the user group, after the start position of the UE with the transmission requirement, and within the UE indicated by the number of UEs with the transmission requirement, it may be determined that it belongs to the UE with the transmission requirement.

 Based on the processing manner of the network side device, for the secondary UE, regardless of whether there is a transmission requirement, the access completion notification message received by the secondary UE in the group random access time window is that the network side device receives the sequence code. And a second RAR returned after transmitting the demand indication message, where the second RAR includes start location information of the UE with transmission requirements, the number of UEs with transmission requirements, and an identifier of the user group. Similarly, for the primary UE, regardless of whether there is a transmission requirement, the access completion notification message received by the primary UE in the group random access time window is after the network side device receives the sequence code and the transmission requirement indication information. The second RAR returned.

 It can be seen from the above that in the embodiment, the UE is grouped to form a user group, and for each user group, the primary UE and the secondary UE use the same random access resource, and the primary UE is represented in the group random access time window. All the UEs in the user group initiate a group random access procedure, so that the random access is initiated in the user group unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random connection of the UE is reduced. Enter the time to ensure that the UE starts its business normally.

 FIG. 流程图 is a flowchart of a non-contention based random access method according to still another embodiment of the present invention. As shown in FIG. 7, the method in this embodiment includes:

Step 701: The network-side device receives the primary UE in the user group and sends the packet in the group random access time window. Serial code and transmission requirement indication information.

 The primary UE and the secondary UE in the user group use the same random access resource, and the secondary UE does not send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, and does not send the layer 2 / Layer 3 message, that is, the secondary UE does not initiate a random access procedure to the network side device in the group random access time window. The random access resource includes the sequence code and a time-frequency resource used for sending the sequence code.

 Step 702: The network side device learns, according to the transmission requirement indication information, information about a UE having a transmission requirement in the user group, and returns an access completion notification message after receiving the sequence code and the transmission requirement indication information, to notify the user group The UE completes the random access procedure.

 This embodiment is a non-contention based random access procedure described from the perspective of a network side device. This embodiment only describes the key operations of the network side device. For other related descriptions, refer to the embodiments shown in FIG. 5 and FIG. 6, which are not mentioned here.

 In an optional implementation manner, the transmission requirement indication information that is sent by the primary UE to the network side device includes: the number of UEs in the user group where the primary UE is located, and the identifier of the user group. In the case that the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group, the cooperation of the network side device is required to implement the indication of the transmission requirement indication information to the UE having the transmission requirement in the user group. This embodiment provides two types of network side device cooperation, but is not limited to these two types. The two processing methods are as follows:

The first processing mode of the network side device includes: after receiving the transmission requirement indication information sent by the primary UE, the network side device can determine, according to the identifier of the user group, which user group has transmission requirements, and on the other hand, the network side The device allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a transmission request message to the UE having the transmission requirement in the user group, and further information about the UE having the transmission requirement in the user group. . Based on this, step 702 specifically includes: after receiving the transmission requirement indication message, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and receives the sequence code and the transmission requirement. The indication information is returned to the RAR, which is recorded as the first RAR, where the first RAR includes location indication information of the transmission request resource allocated by the network side device, where the location indication information of the transmission request resource may be a secondary frequency resource, an orthogonal code resource, The time resource indicates the three latitudes; the network side device receives the transmission request message sent by the UE having the transmission requirement in the user group according to the location indication information of the transmission request resource at the corresponding location of the transmission request resource, and according to the receiving To The transmission request message learns the information of the UE in the user group that has the transmission requirement. In the processing mode, the first RAR returned by the network side device is the access completion notification message.

 The second processing mode of the network side device includes: after receiving the transmission requirement indication information sent by the primary UE, the network side device may determine, according to the identifier of the user group, which user group has transmission requirements, and on the other hand, the network side The device allocates a transmission request resource to the user group according to the number of UEs in the user group, and sends a transmission request message to the UE having the transmission requirement in the user group, and further information about the UE having the transmission requirement in the user group. . Based on this, step 702 specifically includes: after receiving the transmission requirement indication information, the network side device allocates a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and receives the sequence code and the transmission requirement. The indication information is returned to the first RAR, where the first RAR includes location indication information of the transmission request resource allocated by the network side device, where the location indication information of the transmission request resource may be three from the frequency resource, the orthogonal code resource, and the time resource. The latitude indicates; after that, the network side device receives, according to the location indication information of the transmission request resource, the transmission request message sent by the UE having the transmission requirement in the user group according to the location information of the transmission request resource, and according to the received transmission request The message learns the information of the UE in the user group with the transmission requirement; after receiving the transmission request message sent by the UE with the transmission requirement, the network side device also returns a transmission request response message to inform the UE with the transmission requirement that the successful completion of the randomization Access process. In this processing mode, the transmission request response message returned by the network side device is the access completion notification message.

 In an optional implementation manner, the transmission requirement indication information sent by the primary UE to the network side device includes start location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group. In this embodiment, the UE having the transmission requirement is the UE indicated by the number of UEs having the transmission requirement starting from the starting position of the UE having the transmission requirement. Based on this, the step 702 specifically includes: after receiving the sequence code and the transmission requirement indication information sent by the primary UE, the network side device according to the transmission requirement indication information, the start location information of the UE with the transmission requirement, and the number of UEs with the transmission requirement And the identifier of the user group, the information of the UE having the transmission requirement in the user group is obtained; the network side device returns the second RAR after receiving the sequence code and the transmission requirement indication information, to notify the UE in the user group to complete the random access process. The second RAR includes start location information of the UE with transmission requirements, the number of UEs with transmission requirements, and an identifier of the user group. In this implementation manner, the second RAR returned by the network side device is the access completion notification message.

In an optional implementation manner, the network side device may temporarily maintain a list for the user group, where The list indicates which UEs in the user group have transmission requirements and which UEs do not have transmission requirements. This list corresponds to the allocated transmission request resource. For example, the network side device can establish a bit mapping table, set the bit corresponding to the UE with the transmission requirement to 1, and set the bit corresponding to the UE without the transmission requirement to 0. The network side device is a user group temporary maintenance list, and the temporary list is used to store information of the UEs having data transmission requirements in the user group, and only the transmission resources are allocated to the UEs in the temporary list, instead of all the UEs in the user group are allocated transmissions. The resource saves the transmission resources allocated to the UE without the data transmission requirement, reduces the waste of the transmission resources, and further stores all the information of the user group by temporarily maintaining the list for the user group instead of the user group information base. Flexibility.

 It can be seen from the above that in the embodiment, the UE is grouped to form a user group, and for each user group, the primary UE and the secondary UE use the same random access resource, and the primary UE is represented in the group random access time window. All the UEs in the user group initiate a group random access procedure, so that the random access is initiated in the user group unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random connection of the UE is reduced. Enter the time to ensure that the UE starts its business normally.

 FIG. 8A is a flowchart of a non-contention based random access method according to still another embodiment of the present invention. In this embodiment, a network side device is used as a base station as an example for description. As shown in FIG. 8A, the method of this embodiment includes:

 Step 8a: The base station sends a dedicated sequence code to the primary UE and the secondary UE in the user group.

 Step 8b: The primary UE sends the dedicated sequence code and the transmission requirement indication information to the base station in the group random access time window. In this embodiment, the transmission requirement indication information includes the number of UEs in the user group where the primary UE is located and the identification information of the user group in which the primary UE is located as an example.

 Step 8c: After receiving the foregoing dedicated sequence code and transmission requirement indication information sent by the primary UE, the base station sends an RAR to the primary UE and the secondary UE, where the RAR includes location indication information of the transmission request resource allocated by the base station to the user group.

 Step 8d: The primary UE and the secondary UE listen to the RAR in the group random access time window, where the secondary UE obtains the TC-RNTI from the RAR as the C of the user group after listening to the RAR in the group random access time window. -RNTI.

Step 8e: The UE that has data to be transmitted in the secondary UE and the primary UE (referred to as a UE with data transmission requirement) transmits a transmission request message to the base station at a corresponding position of the transmission request resource according to the location indication information of the transmission request resource. This example takes a UE with data transmission requirements as a non-primary UE as an example. Be explained.

 Step 8f: The base station receives the transmission request message sent by the secondary UE with the transmission requirement, and obtains information about all the UEs in the user group that have the transmission requirement according to the transmission request message of the UE.

 Step 8g: The base station sends a transmission request response message, where the transmission request response message includes transmission requirement notification information, and the transmission requirement notification information is used to indicate information of the UE having the transmission requirement.

 After receiving the transmission request response message sent by the base station, the UE having the data transmission requirement can determine that the random access procedure is completed.

 It is to be noted that the foregoing step 8g is an optional step, that is, after the base station receives the transmission request message sent by the UE having the transmission requirement, the base station may not return the transmission request response message.

 Subsequently, the base station may allocate transmission resources to the UEs having transmission requirements in the user group, and send the transmission resource indication information to the UEs having transmission requirements; and the UE having the transmission requirement performs data on the transmission resources indicated by the transmission resource indication information. transmission.

 It can be seen from the above that the present embodiment describes the non-contention based random access method from the perspective of interaction between the primary UE, the secondary UE and the base station. In this embodiment, the UE is grouped to form a user group, and for each user group, the primary UE and the secondary UE use the same random access resource, and the primary UE represents the user group in the group random access time window. All the UEs initiate a random access procedure, so that the random access is initiated in the user group as a unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random access time of the UE is reduced, thereby ensuring the UE. Conduct business normally.

 FIG. 8B is a flowchart of a non-contention based random access method according to another embodiment of the present invention. In this embodiment, a network side device is used as a base station as an example for description. As shown in FIG. 8B, the method in this embodiment includes:

 Step 9a: The base station sends a dedicated sequence code to the primary UE and the secondary UE in the user group.

 Step 9b: The primary UE sends the dedicated sequence code and the transmission requirement indication information to the base station in the group random access time window. In this embodiment, the transmission requirement indication information includes the start location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group as an example.

 Step 9c: After receiving the foregoing dedicated sequence code and transmission requirement indication information sent by the primary UE, the base station learns information about all UEs in the user group that have transmission requirements, and sends an RAR, where the RAR includes the starting position of the UE with the transmission requirement. Information, the number of UEs with transmission requirements, and the identity of the user group.

Step 9d: The primary UE and the secondary UE listen to the RAR in the group random access time window, where the secondary UE After the RAR is monitored in the group random access time window, the TC-RNTI is obtained from the RAR as the C-RNTI of the user group in which it is located.

 After receiving the transmission request response message sent by the base station, the UE having the data transmission requirement can determine that the random access procedure is completed.

 Subsequently, the base station may allocate transmission resources to the UEs having transmission requirements in the user group, and send the transmission resource indication information to the UEs having transmission requirements; and the UE having the transmission requirement performs data on the transmission resources indicated by the transmission resource indication information. transmission.

 It can be seen from the above that the present embodiment describes the non-contention based random access method from the perspective of interaction between the primary UE, the secondary UE and the base station. In this embodiment, the UE is grouped to form a user group, and for each user group, the primary UE and the secondary UE use the same random access resource, and the primary UE represents the user group in the group random access time window. All the UEs initiate a random access procedure, so that the random access is initiated in the user group as a unit, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random access time of the UE is reduced, thereby ensuring the UE. Conduct business normally.

 FIG. 9 is a schematic structural diagram of a UE according to an embodiment of the present invention. As shown in FIG. 9, the UE includes: a sending module 91 and a receiving module 92.

 The sending module 91 is configured to send a layer 2/layer 3 message to the network side device in the group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information, where the transmission requirement indication information is used to enable the The network side device learns the information of the UE in the user group that has the transmission requirement.

 The UE is a primary UE in the user group, and the secondary UE in the user group uses the same random access resource, and the secondary UE does not go in the random access time window of the group. The network side device sends a sequence code, where the random access resource includes the sequence code and a time-frequency resource.

 The receiving module 92 is connected to the sending module 91, and configured to receive, after the network side device receives the layer 2/layer 3 message, an access completion notification message, in the group random access time window, to complete the randomization. Access process.

 In an optional implementation manner, the transmission requirement indication information includes a quantity of UEs in the user group and an identifier of the user group.

Based on this, the receiving module 92 is specifically configured to receive, after the UE has no transmission requirement, the first returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window. The contention resolution message is the access completion notification message, and the first contention resolution message includes location indication information of the transmission request resource. Or The receiving module 92 is specifically configured to: when the UE has a transmission requirement, receive a first contention resolution message that is returned by the network side device after receiving the layer 2/layer 3 message, where the first contention resolution message is received. And including location indication information for transmitting the request resource; the first contention resolution message is the access completion advertisement message. Correspondingly, the sending module 91 is further configured to: respond to the transmission request resource in the group random access time window according to the location information of the UE in the user group and the location indication information of the transmission request resource. A transmission request message is sent to the network side device in a location. or

 The receiving module 92 is specifically configured to receive, after the UE has a transmission requirement, the first contention solution returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window. a message, the first contention resolution message includes location indication information of a transmission request resource; and receiving a transmission request response message sent by the network side device in the group random access time window to complete a random access procedure; The transmission request response message is the access completion advertisement message. Correspondingly, the sending module 91 is further configured to: before the receiving module 92 receives the transmission request response message, according to the location information of the UE in the user group and the location indication information of the transmission request resource, in the group Sending, by the random access time window, the transmission request message to the network side device at a corresponding location of the transmission request resource.

 Further optionally, the transmission request response message includes information about the UE having a transmission requirement.

 The receiving module 92 is further configured to receive the transmission resource indication information sent by the network side device according to the location information of the UE in the user group. Correspondingly, the sending module 91 is further configured to perform data transmission on the transmission resource indicated by the transmission resource indication information.

 The radio network temporary identifier used by the sending module 91 to perform data transmission on the transmission resource indicated by the transmission resource indication information is common information, or the cell radio network temporary identifier C-RNTI of the user group, or according to the pre- It is determined by the determining rule that the public information refers to information that is previously known to all UEs in the user group.

 The preset determination rule may be combined according to the public information and the identifier of the UE, or may be combined according to the C-RNTI of the user group and the identifier of the UE.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

Based on this, the receiving module 92 is specifically configured to receive the network in the group random access time window. a second contention resolution message returned by the network side device after receiving the layer 2/layer 3 message, where the second contention resolution message is the access completion notification message, and the second contention resolution message includes The starting location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group.

 Further, as shown in FIG. 9, the UE may further include: a determining module 93. The determining module 93 is connected to the sending module 91, and is configured to determine, before the sending module 91 sends the layer 2/layer 3 message, whether the random transmission by the network side device is successfully received in the group random access time window. An access response RAR, where the network side device receives the RAR successfully, and the trigger sending module 91 is randomly selected in the group when receiving the RAR in the group random access device access time window. The layer 2/layer 3 message is sent to the network side device within an access time window.

 Further, as shown in FIG. 9, the UE may further include: a random process initiating module 94. The random process initiating module 94 is connected to the determining module 93, and is configured to initiate a random access process to the network side device when the determining module 93 determines that the RAR is not successfully received in the group random access time window. .

 Further, as shown in FIG. 9, the UE may further include: an obtaining module 95. The obtaining module 95 is connected to the sending module 91, and configured to obtain the pre-agreed random access resource, or used to calculate the random access resource by using public information, where the public information refers to the user group. Information that all UEs know in advance.

 Further, the receiving module 92 is further configured to: before the transmitting module 91 sends the layer 2/layer 3 message, receive indication information of the group random access time window sent by the network side device.

 The function modules of the UE provided in this embodiment may be used to perform the operation process performed by the primary UE in the foregoing method for the contention-based random access method. The specific working principle is not described here. For details, refer to the description of the method embodiment.

 The UE provided in this embodiment uses the same random access resource as the primary UE in the user group and the secondary UE in the user group, and initiates group random access on behalf of all UEs in the user group in the group random access time window. The process of initiating random access in the user group as a unit reduces the number of UEs that initiate random access at the same time, reduces the probability of collisions, and reduces the random access time of the UE, so as to ensure that the UE performs services normally.

FIG. 10 is a schematic structural diagram of a UE according to another embodiment of the present invention. As shown in Figure 10, this The UE of an embodiment comprises: a transmitter 1001 and a receiver 1002.

 The transmitter 1001 is configured to send a layer 2/layer 3 message to the network side device in a group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information, where the transmission requirement indication information is used to enable the The network side device learns the information of the UE in the user group that has the transmission requirement.

 The UE is a primary UE in the user group, and the UE and the secondary in the user group

The UE uses the same random access resource, and the secondary UE does not send the sequence code to the network side device in the group random access time window, where the random access resource includes the sequence code and the time-frequency resource. .

 The receiver 1002 is configured to receive, in the group random access time window, an access completion advertisement message returned by the network side device after receiving the layer 2/layer 3 message, to complete a random access procedure.

 Further, as shown in FIG. 10, the UE in this embodiment further includes: a memory 1003 and a processor.

1004.

 The memory 1003 is configured to store a program. In particular, the program can include program code, the program code including computer operating instructions. The memory 1003 may include a high speed RAM memory, and may also include a non-volatile memory such as at least one disk memory.

 The processor 1004 is configured to execute a program stored in the memory 1003. The processor 1004 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.

 In an optional implementation manner, the transmission requirement indication information includes a quantity of UEs in the user group and an identifier of the user group.

 Based on this, the receiver 1002 is specifically configured to receive, after the UE has no transmission requirement, the first returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window. The contention resolution message is the access completion notification message, and the first contention resolution message includes location indication information of the transmission request resource. Or

The receiver 1002 is specifically configured to: when the UE has a transmission requirement, receive a first contention resolution message that is returned by the network side device after receiving the layer 2/layer 3 message, where the first contention resolution message is received. And including location indication information for transmitting the request resource; the first contention resolution message is the access completion advertisement message. Correspondingly, the transmitter 1001 is further configured to: respond to the transmission request resource in the group random access time window according to location information of the UE in the user group and location indication information of the transmission request resource A transmission request message is sent to the network side device in a location. or

 The receiver 1002 is specifically configured to receive, after the UE has a transmission requirement, the first contention solution that is returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window. a message, the first contention resolution message includes location indication information of a transmission request resource; and receiving a transmission request response message sent by the network side device in the group random access time window to complete a random access procedure; The transmission request response message is the access completion advertisement message. Correspondingly, the transmitter 1001 is further configured to: before the receiver 1002 receives the transmission request response message, according to location information of the UE in the user group and location indication information of the transmission request resource, in the group Sending, by the random access time window, the transmission request message to the network side device at a corresponding location of the transmission request resource.

 Further optionally, the transmission request response message includes information about the UE having a transmission requirement.

 Based on the above, the receiver 1002 is further configured to receive the transmission resource indication information sent by the network side device according to the location information of the UE in the user group. Correspondingly, the transmitter 1001 is further configured to perform data transmission on the transmission resource indicated by the transmission resource indication information.

 The radio network temporary identifier used by the transmitter 1001 for data transmission on the transmission resource indicated by the transmission resource indication information is public information, or the cell radio network temporary identifier C-RNTI of the user group, or according to the pre- It is determined by the determining rule that the public information refers to information that is previously known to all UEs in the user group.

 The preset determination rule may be a combination of the public information and the identifier of the UE, or may be combined according to the C-RNTI of the user group and the identifier of the UE.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

 Based on this, the receiver 1002 is specifically configured to receive, in the group random access time window, a second contention resolution message returned by the network side device after receiving the layer 2/layer 3 message, where the second The contention resolution message is the access completion advertisement message, where the second contention resolution message includes start location information of the UE with transmission requirements, the number of UEs with transmission requirements, and the user group. Logo.

Further, the processor 1004 is configured to determine, before the transmitter 1001 sends the layer 2/layer 3 message, whether the random transmission by the network side device is successfully received in the group random access time window. Accessing the RAR, the RAR is returned by the network side device after receiving the sequence code sent by the UE on the time-frequency resource in the group random access time window, and is in the When the RAR is successfully received in the group random access time window, the trigger transmitter 1001 sends the layer 2/layer 3 message to the network side device in the group random access time window.

 Further, the processor 1004 is further configured to: when it is determined that the RAR is not successfully received within the group random access time window, initiate a random access procedure to the network side device.

 Further, the processor 1004 is further configured to obtain the pre-agreed random access resource, or to calculate the random access resource by using common information, where the public information refers to all UEs in the user group being known in advance. Information.

 Further, the receiver 1002 is further configured to receive the indication information of the group random access time window sent by the network side device before the transmitter 1001 sends the layer 2/layer 3 message.

 Optionally, in implementation, if the transmitter 1001, the receiver 1002, the memory 1003, and the processor 1004 are implemented independently of each other, the transmitter 1001, the receiver 1002, the memory 1003, and the processor 1004 may be connected to each other through a bus and complete each other. Communication between. The bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus. Wait. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 10, but it does not mean that there is only one bus or one type of bus.

 If the transmitter 1001, the receiver 1002, the memory 1003, and the processor 1004 are integrated in one chip, the transmitter 1001, the receiver 1002, the memory 1003, and the processor 1004 can communicate with each other through an internal interface.

 The UE provided by this embodiment may be used to perform the operation process performed by the primary UE in the foregoing contention-based random access method. The specific working principle is not described here. For details, refer to the description of the method embodiment.

The UE provided in this embodiment uses the same random access resource as the primary UE in the user group and the secondary UE in the user group, and initiates group random access on behalf of all UEs in the user group in the group random access time window. The process of initiating random access in the user group as a unit reduces the number of UEs that initiate random access at the same time, reduces the probability of collisions, and reduces the random access time of the UE, and ensures that the UE performs services normally. FIG. 11 is a schematic structural diagram of a UE according to another embodiment of the present invention. As shown in FIG. 11, the UE in this embodiment includes: a receiving module 1101, an obtaining module 1102, and an access completing module 1103.

 The receiving module 1101 is configured to receive, in a group random access time window, a random access response RAR sent by the network side device, and receive an access completion notification message sent by the network side device in the group random access time window. .

 The obtaining module 1102 is connected to the receiving module 1101, and is configured to obtain the temporary cell wireless network temporary identifier TC-RNTI from the RAR when the receiving module 1101 successfully receives the RAR in the group random access time window.

 The RAR is returned by the network side device after receiving the sequence code sent by the primary UE in the user group on the time-frequency resource in the group random access time window.

 The UE is a secondary UE in the user group, the UE and the primary UE use the same random access resource, and the UE does not go to the network side device in the group random access time window. And sending the sequence code, where the random access resource includes the sequence code and the time-frequency resource.

 The access completion module 1103 is connected to the receiving module 1101, and is configured to: when the receiving module 1101 successfully receives the access completion advertisement message in the group random access time window, use the TC-RNTI of the user group as The cell radio network of the user group temporarily identifies the C-RNTI to complete the random access procedure.

 The access completion advertisement message is returned after the network side device receives the layer 2/layer 3 message sent by the primary UE in the group random access time window, where the layer 2/layer 3 The message includes transmission requirement indication information, and the transmission requirement indication information is used to enable the network side device to learn information about a UE having a transmission requirement in the user group.

 In an optional implementation manner, the transmission requirement indication information includes a quantity of UEs in the user group and an identifier of the user group.

 Based on this, the receiving module 1101 is specifically configured to receive, after the UE has no transmission requirement, the first returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window. The contention resolution message is the access completion notification message, and the first contention resolution message includes location indication information of the transmission request resource. Or

The receiving module 1101 is specifically configured to: when the UE has a transmission requirement, receive, in the group random access time window, the first contention solution that is returned by the network side device after receiving the layer 2/layer 3 message. a message, the first contention resolution message includes location indication information for transmitting a request resource; The first contention resolution message is the access completion announcement message. Or the receiving module 1101 is specifically configured to: when the UE has a transmission requirement, receive, in the group random access time window, the first entity returned by the network side device after receiving the layer 2/layer 3 message. Resolving the message, the first contention resolution message includes location indication information of the transmission request resource; and receiving, in the group random access time window, a transmission request response message sent by the network side device; The message is the access completion announcement message. Based on this, as shown in FIG. 11, the UE further includes: a sending module 1104.

 The sending module 1104 is connected to the receiving module 1101, and configured to: in the group random access time window, the transmission request according to location information of the UE in the user group and location indication information of the transmission request resource. A transmission request message is sent to the network side device at a corresponding location of the resource, so that the network side device learns that the UE has a transmission requirement.

 Further optionally, the transmission request response message includes information about the UE having a transmission requirement.

 The receiving module 1101 is further configured to receive the transmission resource indication information sent by the network side device according to the location information of the UE in the user group. Correspondingly, the sending module 1104 is further configured to perform data transmission on the transmission resource indicated by the transmission resource indication information.

 The radio network temporary identifier used by the sending module 1104 to perform data transmission on the transmission resource indicated by the transmission resource indication information is common information, or the cell radio network temporary identifier C-RNTI of the user group, or according to the pre- It is determined by the determining rule that the public information refers to information that is previously known to all UEs in the user group.

 The preset determination rule may be combined according to the public information and the identifier of the primary UE, or may be combined according to the C-RNTI of the user group and the identifier of the primary UE.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

 Based on this, the receiving module 1101 is specifically configured to receive, in the group random access time window, a second contention resolution message returned by the network side device after receiving the layer 2/layer 3 message, where the second The contention resolution message is the access completion advertisement message, where the second contention resolution message includes start location information of the UE with transmission requirements, the number of UEs with transmission requirements, and the user group. Logo.

Optionally, as shown in FIG. 11, the UE further includes: a random process initiation module 1105. Random The process initiating module 1105 is configured to be connected to the receiving module 1101, where the receiving module 1101 does not successfully receive the RAR in the group random access time window or does not successfully receive the RAR in the group random access time window. When the access completion notification message is described, a random access procedure is initiated to the network side device.

 Optionally, as shown in FIG. 11, the UE further includes: an obtaining module 1106. The obtaining module 1106 is configured to obtain the pre-agreed random access resource, or to calculate the random access resource by using common information, where the public information refers to information that is previously known by all UEs in the user group.

 Optionally, the receiving module 1101 is further configured to receive indication information of the group random access time window sent by the network side device.

 The function modules of the UE provided in this embodiment may be used to perform the operation process performed by the secondary UE in the foregoing method for the contention-based random access method. The specific working principle is not described here. For details, refer to the description of the method embodiment.

 The UE provided in this embodiment uses the same random access resource as the secondary UE in the user group, and supports the primary UE to initiate all the UEs in the user group in the group random access time window. A group random access process, in which the random access is initiated by the user group, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random access time of the UE is reduced, thereby ensuring that the UE performs normal services. .

 FIG. 12 is a schematic structural diagram of a UE according to another embodiment of the present invention. As shown in FIG. 12, the UE in this embodiment includes: a receiver 1201 and a processor 1202.

 The receiver 1201 is configured to receive, in a group random access time window, a random access response RAR sent by the network side device, and receive an access completion notification message sent by the network side device in the group random access time window. .

 The RAR is returned by the network side device after receiving the sequence code sent by the primary UE in the user group on the time-frequency resource in the group random access time window.

 The UE is a secondary UE in the user group, the UE and the primary UE use the same random access resource, and the UE does not go to the network side device in the group random access time window. And sending the sequence code, where the random access resource includes the sequence code and the time-frequency resource.

The processor 1202 is configured to: when the receiver 1201 successfully receives the RAR in the group random access time window, acquire a temporary cell radio network temporary identifier TC-RNTI from the RAR, and at the receiver Successfully receiving the access completion announcement within the group random access time window In the message, the TC-RNTI of the user group is used as the cell radio network temporary identifier C-RNTI of the user group to complete the random access procedure.

 The access completion advertisement message is returned after the network side device receives the layer 2/layer 3 message sent by the primary UE in the group random access time window, where the layer 2/layer 3 The message includes transmission requirement indication information, and the transmission requirement indication information is used to enable the network side device to learn information about a UE having a transmission requirement in the user group.

 In an optional implementation manner, the transmission requirement indication information includes a quantity of UEs in the user group and an identifier of the user group.

 Based on this, the receiver 1201 is specifically configured to receive, after the UE has no transmission requirement, the first returned by the network side device after receiving the layer 2/layer 3 message in the group random access time window. The contention resolution message is the access completion notification message, and the first contention resolution message includes location indication information of the transmission request resource. Or

 The receiver 1201 is specifically configured to: when the UE has a transmission requirement, receive, in the group random access time window, the first contention solution returned by the network side device after receiving the layer 2/layer 3 message. The first contention resolution message includes location indication information of the transmission request resource, and the first contention resolution message is the access completion advertisement message. Or, the receiver 1201 is specifically configured to: when the UE has a transmission requirement, receive, in the group random access time window, the first entity returned by the network side device after receiving the layer 2/layer 3 message. Resolving the message, the first contention resolution message includes location indication information of the transmission request resource; and receiving, in the group random access time window, a transmission request response message sent by the network side device; The message is the access completion announcement message. Based on this, as shown in FIG. 12, the UE further includes: a transmitter 1203.

 The transmitter 1203 is configured to: according to the location information of the UE in the user group and the location indication information of the transmission request resource, in a corresponding location of the transmission request resource in the group random access time window. The network side device sends a transmission request message, so that the network side device learns that the UE has a transmission requirement.

 Further optionally, the transmission request response message includes information about the UE having a transmission requirement.

The receiver 1201 is further configured to receive the transmission resource indication information sent by the network side device according to the location information of the UE in the user group. Correspondingly, the transmitter 1203 is further configured to perform data transmission on the transmission resource indicated by the transmission resource indication information. The radio network temporary identifier used by the transmitter 1203 for data transmission on the transmission resource indicated by the transmission resource indication information is public information, or the cell radio network temporary identifier C-RNTI of the user group, or is determined according to a preset. The rule determines that the public information refers to information that is previously known to all UEs in the user group.

 The preset determination rule may be combined according to the public information and the identifier of the primary UE, or may be combined according to the C-RNTI of the user group and the identifier of the primary UE.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

 Based on this, the receiver 1201 is specifically configured to receive, in the group random access time window, a second contention resolution message returned by the network side device after receiving the layer 2/layer 3 message, where the second The contention resolution message is the access completion advertisement message, where the second contention resolution message includes start location information of the UE with transmission requirements, the number of UEs with transmission requirements, and the user group. Logo.

 The processor 1202 is further configured to: when the receiver 1201 does not successfully receive the RAR in the group random access time window or fails to receive the access completion notification message within the group random access time window And initiating a random access procedure to the network side device.

 The processor 1202 is further configured to obtain the pre-agreed random access resource, or to calculate the random access resource by using public information, where the public information refers to information that is previously known by all UEs in the user group.

 Optionally, the receiver 1201 is further configured to receive indication information of the group random access time window sent by the network side device.

 Optionally, the UE in this embodiment further includes a memory 1204. The memory 1204 is used to store programs. In particular, the program can include program code, the program code including computer operating instructions.

 Memory 1204 may include high speed RAM memory and may also include non-volatile memory

(non-volatile memory), such as at least one disk storage. Processor 1202 may be a medium CPU, or a particular ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

Optionally, in implementation, if the receiver 1201, the processor 1202, the transmitter 1203, and the memory 1204 are implemented independently of each other, the receiver 1201, the processor 1202, the transmitter 1203, and the storage The devices 1204 can be connected to each other through a bus and complete communication with each other. The bus can be an ISA bus, a PCI bus, or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 12, but it does not mean that there is only one bus or one type of bus.

 If the receiver 1201, the processor 1202, the transmitter 1203, and the memory 1204 are implemented in a single chip, the receiver 1201, the processor 1202, the transmitter 1203, and the memory 1204 can communicate with each other through an internal interface.

 The UE provided by this embodiment may be used to perform the operation process performed by the secondary UE in the foregoing method for the contention-based random access method. The specific working principle is not described here. For details, refer to the description of the method embodiment.

 The UE provided in this embodiment uses the same random access resource as the secondary UE in the user group, and supports the primary UE to initiate all the UEs in the user group in the group random access time window. A group random access process, in which the random access is initiated by the user group, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random access time of the UE is reduced, thereby ensuring that the UE performs normal services. .

 FIG. 13 is a schematic structural diagram of a network side device according to an embodiment of the present invention. As shown in FIG. 13, the network side device of this embodiment includes: a receiving module 1301, a determining module 1302, and a sending module 1303.

 The receiving module 1301 is configured to receive a layer 2/layer 3 message sent by the primary UE in the user group in a group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information, where the primary UE And the secondary UE in the user group uses the same random access resource, and the secondary UE does not send the sequence code to the network side device in the group random access time window, where the random access resource includes The sequence code and time-frequency resource.

 The determining module 1302 is connected to the receiving module 1301, and is configured to learn, according to the transmission requirement indication information, information about a UE having a transmission requirement in the user group.

 The sending module 1303 is connected to the receiving module 1301, and is configured to return an access completion advertisement message after the receiving module 1301 receives the layer 2/layer 3 message, to notify the UE in the user group to complete the random access procedure.

 In an optional implementation manner, the transmission requirement indication information includes a quantity of UEs in the user group and an identifier of the user group.

Based on this, the determining module 1302 is specifically applicable to the number of UEs in the user group and the The identifier of the user group is allocated to the user group, and the UE with the transmission requirement is learned according to the transmission request message sent by the UE with the data transmission requirement received by the receiving module 1301 on the transmission request resource. Information. Correspondingly, the sending module 1303 is specifically configured to return a first contention resolution message after the receiving module 1301 receives the layer 2/layer 3 message, where the first contention resolution message includes location indication information of the transmission request resource. The first contention resolution message is the access completion advertisement message. The receiving module 1301 is further configured to receive the transmission request message sent by the UE with the data transmission requirement on the transmission request resource. or

 The determining module 1302 is specifically configured to allocate a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and according to the UE with the data transmission requirement received by the receiving module 1301, Transmitting a transmission request message sent on the request resource, and obtaining information about the UE having the transmission requirement. Correspondingly, the sending module 1303 is specifically configured to return a first contention resolution message after the receiving module 1301 receives the layer 2/layer 3 message, where the first contention resolution message includes location indication information of the transmission request resource. After receiving the transmission request message sent by the UE with the data transmission request on the transmission request resource, the receiving module 1301 sends a transmission request response message to notify the UE with the transmission request to complete the random connection. In the process, the transmission request response message is the access completion notification message. The receiving module 1301 is further configured to receive a transmission request message sent by the UE having the data transmission requirement on the transmission request resource.

 Further optionally, the transmission request response message includes information about the UE having a transmission requirement.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

 Based on this, the determining module 1302 is specifically configured to learn, according to the starting location information of the UE with the transmission requirement and the number of UEs with the transmission requirement, information about the UE having the transmission requirement in the user group. Correspondingly, the sending module 1303 is specifically configured to: after receiving the layer 2/layer 3 message, the receiving module 1301 returns a second contention resolution message, to notify the UE in the user group to complete a random access procedure; The second contention resolution message includes the start location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group; the second contention resolution message is the access completion. Announcement message.

Optionally, the sending module 1303 is further configured to send the group random connection to the UE in the user group. Instructions for entering the time window.

 The function modules of the network side device provided in this embodiment may be used to perform the operation process performed by the network side device in the foregoing method for the contention-based random access method. The specific working principle is not described here. For details, refer to the description of the method embodiment. .

 The network side device provided in this embodiment cooperates with the primary UE in the user group to complete the random access process of the UE with the transmission requirement in the user group, and supports the primary UE to initiate a random access process on behalf of the entire user group, so that the user The group-initiated random access reduces the number of UEs that initiate random access at the same time, reduces the probability of collisions, and reduces the random access time of the UE, ensuring that the UE performs services normally.

 FIG. 14 is a schematic structural diagram of a network side device according to another embodiment of the present invention. As shown in FIG. 14, the network side device of this embodiment includes: a receiver 1401, a processor 1402, and a transmitter 1403.

 The receiver 1401 is configured to receive a layer 2/layer 3 message sent by the primary user equipment UE in the user group in a group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information.

 The primary UE and the secondary UE in the user group use the same random access resource, and the secondary UE does not send the sequence code to the network side device in the group random access time window. The random access resource includes the sequence code and time-frequency resources.

 The processor 1402 is configured to learn, according to the transmission requirement indication information, information about a UE having a transmission requirement in the user group.

 The transmitter 1403 is configured to return an access completion notification message after the receiver 1401 receives the layer 2/layer 3 message, to notify the UE in the user group to complete the random access procedure.

 In an optional implementation manner, the transmission requirement indication information includes a quantity of UEs in the user group and an identifier of the user group.

Based on this, the processor 1402 is specifically configured to allocate, according to the number of UEs in the user group and the identifier of the user group, a transmission request resource, and the UE that receives the data transmission requirement according to the receiver 1401. And transmitting, by the transmission request message sent on the transmission request resource, information about the UE having the transmission requirement. Correspondingly, the transmitter 1403 is specifically configured to return a first contention resolution message after the receiver 1401 receives the layer 2/layer 3 message, where the first contention resolution message includes location indication information of the transmission request resource. The first contention resolution message is the access completion advertisement message. The receiver 1401 is further configured to receive the transmission request message sent by the UE with the data transmission requirement on the transmission request resource. Or The processor 1402 is specifically configured to allocate a transmission request resource to the user group according to the number of UEs in the user group and the identifier of the user group, and according to the UE with the data transmission requirement received by the receiver 1401, Transmitting a transmission request message sent on the request resource, and obtaining information about the UE having the transmission requirement. Correspondingly, the transmitter 1403 is specifically configured to return a first contention resolution message after the receiver 1401 receives the layer 2/layer 3 message, where the first contention resolution message includes location indication information of the transmission request resource. After receiving the transmission request message sent by the UE with the data transmission request on the transmission request resource, the receiver 1401 sends a transmission request response message to notify the UE with the transmission requirement to complete the random connection. In the process, the transmission request response message is the access completion notification message. The receiver 1401 is further configured to receive a transmission request message sent by the UE with the data transmission requirement on the transmission request resource.

 Further optionally, the transmission request response message includes information about the UE having a transmission requirement.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

 Based on this, the processor 1402 is specifically configured to learn, according to the starting location information of the UE with the transmission requirement and the number of UEs with the transmission requirement, information about the UE having the transmission requirement in the user group. Correspondingly, the transmitter 1403 is specifically configured to return a second contention resolution message after the receiver 1401 receives the layer 2/layer 3 message, to notify the UE in the user group to complete a random access procedure; The second contention resolution message includes the start location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group; the second contention resolution message is the access completion. Announcement message.

 Optionally, the sender 1403 is configured to send the indication information of the group random access time window to the UE in the user group.

 Further, the network side device of this embodiment further includes: a memory 1404, configured to store a program. In particular, the program can include program code, the program code including computer operating instructions.

 Memory 1404 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk memory. Processor 1402 may be a medium CPU, or a particular ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

Optionally, in implementation, if the receiver 1401, the processor 1402, the transmitter 1403, and the The memories 1404 are implemented independently of each other, and the receiver 1401, the processor 1402, the transmitter 1403, and the memory 1404 can be connected to each other through a bus and complete communication with each other. The bus can be an ISA bus, a PCI bus, or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 14, but it does not mean that there is only one bus or one type of bus.

 If the receiver 1401, the processor 1402, the transmitter 1403, and the memory 1404 are implemented in a single chip, the receiver 1401, the processor 1402, the transmitter 1403, and the memory 1404 can communicate with each other through an internal interface.

 The network side device provided in this embodiment may be used to perform the operation process performed by the network side device in the foregoing contention-based random access method. The specific working principle is not described here. For details, refer to the description of the method embodiment.

 The network side device provided in this embodiment cooperates with the primary UE in the user group to complete the random access process of the UE with the transmission requirement in the user group, and supports the primary UE to initiate a random access process on behalf of the entire user group, so that the user The group-initiated random access reduces the number of UEs that initiate random access at the same time, reduces the probability of collisions, and reduces the random access time of the UE, ensuring that the UE performs services normally.

 FIG. 15 is a schematic structural diagram of a UE according to another embodiment of the present invention. As shown in FIG. 15, the UE in this embodiment includes: a sending module 1501 and a receiving module 1502.

 The sending module 1501 is configured to send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, where the transmission requirement indication information is used to enable the network side device to learn the UE with the transmission requirement in the user group. information.

 The UE is the primary UE in the user group, the UE and the secondary UE in the user group use the same random access resource, and the secondary UE is in the random access time window of the group. And not sending the sequence code and the transmission requirement indication information to the network side device, where the random access resource includes the sequence code and a time-frequency resource.

 The receiving module 1502 is configured to be connected to the sending module 1501, and configured to receive, in the group random access time window, an access completion notification message that is returned after the network side device receives the sequence code and the transmission requirement indication information, where To complete the random access process.

In an optional implementation manner, the transmission requirement indication information includes a quantity of the UE in the user group and an identifier of the user group. Based on this, the receiving module 1502 is specifically configured to: after the UE has no transmission requirement, receive, in the group random access time window, the network side device returns after receiving the sequence code and the transmission requirement indication information. The first RAR is the access completion advertisement message, and the first RAR includes location indication information of a transmission request resource. or

 The receiving module 1502 is specifically configured to: when the UE has a transmission requirement, receive, in the group random access time window, the first returned by the network side device after receiving the sequence code and the transmission requirement indication information. RAR, the first RAR includes location indication information of a transmission request resource; and the first RAR is the access completion advertisement message. Correspondingly, the sending module 1501 is further configured to: respond to the transmission request resource in the group random access time window according to location information of the UE in the user group and location indication information of the transmission request resource A transmission request message is sent to the network side device in a location. Or

 The receiving module 1502 is specifically configured to: when the UE has a transmission requirement, receive, in the group random access time window, the first returned by the network side device after receiving the sequence code and the transmission requirement indication information. RAR, the first RAR includes location indication information for transmitting a request resource, and receiving a transmission request response message sent by the network side device in the group random access time window to complete a random access procedure; The request response message is the access completion announcement message. Correspondingly, the sending module 1501 is further configured to: before the receiving module 1502 receives the transmission request response message, according to location information of the UE in the user group and location indication information of the transmission request resource, in the group Sending a transmission request message to the network side device at a corresponding location of the transmission request resource in a random access time window.

 Further optionally, the transmission request response message includes information about the UE having a transmission requirement. The transmission resource indication information sent by the network side device. Correspondingly, the sending module 1501 is further configured to perform data transmission on the transmission resource indicated by the transmission resource indication information.

 The radio network temporary identifier used by the sending module 1501 for data transmission on the transmission resource indicated by the transmission resource indication information is common information, or the cell radio network temporary identifier C-RNTI of the user group, or according to the pre- It is determined by the determining rule that the public information refers to information that is previously known to all UEs in the user group.

The preset determination rule may be a combination of the public information and the identifier of the UE. Or it may be a combination of the C-RNTI of the user group and the identifier of the UE.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

 Based on this, the receiving module 1502 is specifically configured to receive, in the group random access time window, the access completion advertisement message that the network side device returns after receiving the sequence code and the transmission requirement indication information. And the second RAR, where the second RAR includes the start location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group.

 Further, the receiving module 1502 is further configured to receive indication information of the random access resource sent by the network side device.

 Further, the receiving module 1502 is further configured to receive indication information of the group random access time window sent by the network side device.

 The function modules of the UE provided in this embodiment may be used to perform the operation process performed by the primary UE in the foregoing non-contention-based random access method embodiment. The specific working principle is not described here. For details, refer to the description of the method embodiment.

 The UE provided in this embodiment uses the same random access resource as the primary UE in the user group and the secondary UE in the user group, and initiates group random access on behalf of all UEs in the user group in the group random access time window. The process of initiating random access in the user group as a unit reduces the number of UEs that initiate random access at the same time, reduces the probability of collisions, and reduces the random access time of the UE, so as to ensure that the UE performs services normally.

 FIG. 16 is a schematic structural diagram of a UE according to another embodiment of the present invention. As shown in FIG. 16, the UE in this embodiment includes: a transmitter 1601 and a receiver 1602.

 The transmitter 1601 is configured to send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, where the transmission requirement indication information is used to enable the network side device to learn the UE with the transmission requirement in the user group. information.

 The UE is a primary UE in the user group, and the UE and the secondary in the user group

The UE uses the same random access resource, and the secondary UE does not send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, where the random access resource includes Serial code and time-frequency resources.

The receiver 1602 is configured to receive, after the network side device receives the sequence code and the transmission requirement indication information, an access completion notification message, in the group random access time window, to complete Into the random access process.

 In an optional implementation manner, the transmission requirement indication information includes a quantity of UEs in the user group and an identifier of the user group.

 Based on this, the receiver 1602 is specifically configured to receive, after the UE has no transmission requirement, the network side device, after receiving the sequence code and the transmission requirement indication information, in the group random access time window. The first RAR is the access completion advertisement message, and the first RAR includes location indication information of a transmission request resource. Or

 The receiver 1602 is specifically configured to receive, after the UE has a transmission requirement, the first returned by the network side device after receiving the sequence code and the transmission requirement indication information in the group random access time window. RAR, the first RAR includes location indication information of a transmission request resource; and the first RAR is the access completion advertisement message. Correspondingly, the transmitter 1601 is further configured to: respond to the transmission request resource in the group random access time window according to the location information of the UE in the user group and the location indication information of the transmission request resource A transmission request message is sent to the network side device in a location. Or

 The receiver 1602 is specifically configured to receive, after the UE has a transmission requirement, the first returned by the network side device after receiving the sequence code and the transmission requirement indication information in the group random access time window. RAR, the first RAR includes location indication information for transmitting a request resource, and receiving a transmission request response message sent by the network side device in the group random access time window to complete a random access procedure; The request response message is the access completion announcement message. Correspondingly, the transmitter 1601 is further configured to: before the receiver 1602 receives the transmission request response message, according to location information of the UE in the user group and location indication information of the transmission request resource, in the group Sending a transmission request message to the network side device at a corresponding location of the transmission request resource in a random access time window.

 Further optionally, the transmission request response message includes information about the UE having a transmission requirement.

 The receiver 1602 is further configured to receive the transmission resource indication information sent by the network side device according to the location information of the UE in the user group. Correspondingly, the transmitter 1601 is further configured to perform data transmission on the transmission resource indicated by the transmission resource indication information.

The wireless network temporary identifier used by the transmitter 1601 for data transmission on the transmission resource indicated by the transmission resource indication information is public information, or a cell wireless network of the user group. The network temporarily identifies the C-RNTI, or is determined according to a preset determination rule, where the public information refers to information that is previously known to all UEs in the user group.

 The preset determination rule may be combined according to the public information and the identifier of the UE, or may be combined according to the C-RNTI of the user group and the identifier of the UE.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

 Based on this, the receiver 1602 is specifically configured to receive, in the group random access time window, the access completion advertisement message that the network side device returns after receiving the sequence code and the transmission requirement indication information. The second RAR includes the starting location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group.

 Further, the receiver 1602 is further configured to receive indication information of the random access resource sent by the network side device.

 Further, the receiver 1602 is further configured to receive indication information of the group random access time window sent by the network side device.

 As shown in FIG. 16, the UE of this embodiment further includes a memory 1603 and a processor 1604.

 The memory 1603 is used to store the program. In particular, the program can include program code, the program code including computer operating instructions. The memory 1603 may include a high speed RAM memory, and may also include a non-volatile memory such as at least one disk memory.

 The processor 1604 is configured to execute a program stored in the memory 1603. Processor 1604 may be a medium CPU, or a particular ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

 Optionally, in implementation, if the transmitter 1601, the receiver 1602, the memory 1603, and the processor 1604 are implemented independently of each other, the transmitter 1601, the receiver 1602, the memory 1603, and the processor 1604 may be connected to each other through a bus and complete each other. Communication between. The bus can be an ISA bus, a PCI bus or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 16, but it does not mean that there is only one bus or one type of bus.

If the transmitter 1601, the receiver 1602, the memory 1603, and the processor 1604 are integrated in one chip, the transmitter 1601, the receiver 1602, the memory 1603, and the processor 1604 can communicate with each other through an internal interface. The UE provided in this embodiment may be used to perform the operation process performed by the primary UE in the foregoing non-contention-based random access method embodiment. The specific working principle is not described here. For details, refer to the description of the method embodiment.

 The UE provided in this embodiment uses the same random access resource as the primary UE in the user group and the secondary UE in the user group, and initiates group random access on behalf of all UEs in the user group in the group random access time window. The process of initiating random access in the user group as a unit reduces the number of UEs that initiate random access at the same time, reduces the probability of collisions, and reduces the random access time of the UE, so as to ensure that the UE performs services normally.

 FIG. 17 is a schematic structural diagram of a UE according to another embodiment of the present invention. As shown in FIG. 17, the UE in this embodiment includes: a receiving module 1701 and an access completion module 1702.

 The receiving module 1701 is configured to receive an access completion notification message sent by the network side device in a group random access time window.

 The access completion advertisement message is returned after the network side device receives the sequence code and the transmission requirement indication information sent by the primary UE in the user group on the time-frequency resource in the group random access time window.

 The UE is a secondary UE in the user group, the UE and the primary UE use the same random access resource, and the UE does not go to the network side device in the group random access time window. And sending the sequence code and the transmission requirement indication information, where the random access resource includes the sequence code and the time-frequency resource.

 The access completion module 1702 is connected to the receiving module 1701, and is configured to determine, according to the access completion notification message, when the receiving module 1701 successfully receives the access completion notification message in the group random access time window. Complete the random access process.

 In an optional implementation manner, the transmission requirement indication information includes a quantity of UEs in the user group and an identifier of the user group.

 Based on this, the receiving module 1701 is specifically configured to receive, after the UE has no transmission requirement, return the network side device to return after receiving the sequence code and the transmission requirement indication information in the group random access time window. The first random access response RAR, the first RAR is the access completion advertisement message, and the first RAR includes location indication information of a transmission request resource. Or

The receiving module 1701 is specifically configured to receive, when the UE has a transmission requirement, the network side device receiving the sequence code and the transmission requirement indication information in the group random access time window. And returning the first RAR, where the first RAR includes location indication information of the transmission request resource; and the first RAR is the access completion advertisement message. Or, the receiving module 1701 is specifically configured to: after the UE has a transmission requirement, receive, in the group random access time window, the network side device returns after receiving the sequence code and the transmission requirement indication information. a first RAR, where the first RAR includes location indication information for transmitting a request resource, and receiving a transmission request response message sent by the network side device in the group random access time window; the transmission request response message is The access completion announcement message is described.

 Based on the foregoing, as shown in FIG. 17, the UE further includes: a sending module 1703. The sending module 1703 is connected to the receiving module 1701, configured to: in the group random access time window, the transmission request according to the location information of the UE in the user group and the location indication information of the transmission request resource. A transmission request message is sent to the network side device at a corresponding location of the resource.

 Further optionally, the transmission request response message includes information about the UE having a transmission requirement.

 The receiving module 1701 is further configured to receive the transmission resource indication information sent by the network side device according to the location information of the UE in the user group. Correspondingly, the sending module 1703 is further configured to perform data transmission on the transmission resource indicated by the transmission resource indication information.

 The radio network temporary identifier used by the sending module 1703 to perform data transmission on the transmission resource indicated by the transmission resource indication information is public information, or the cell radio network temporary identifier C-RNTI of the user group, or according to the pre- It is determined by the determining rule that the public information refers to information that is previously known to all UEs in the user group.

 The preset determination rule may be combined according to the public information and the identifier of the primary UE, or may be combined according to the C-RNTI of the user group and the identifier of the primary UE.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier network side device of the user group.

 Based on this, the access completion notification message that is received by the receiving module 1701 in the group random access time window is returned by the network side device after receiving the sequence code and the transmission requirement indication information. And the second RAR includes the start location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group.

Further, the receiving module 1701 is further configured to receive the random access sent by the network side device. Information about the resource.

 Further, the receiving module 1701 is further configured to receive indication information of the group random access time window sent by the network side device.

 The function modules of the UE provided in this embodiment may be used to perform the operation process performed by the secondary UE in the foregoing non-contention-based random access method embodiment. The specific working principle is not described here. For details, refer to the description of the method embodiment.

 The UE provided in this embodiment uses the same random access resource as the secondary UE in the user group, and supports the primary UE to initiate all the UEs in the user group in the group random access time window. A group random access process, in which the random access is initiated by the user group, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random access time of the UE is reduced, thereby ensuring that the UE performs normal services. .

 FIG. 18 is a schematic structural diagram of a UE according to another embodiment of the present invention. As shown in FIG. 18, the UE in this embodiment includes: a receiver 1801 and a processor 1802.

 The receiver 1801 is configured to receive an access completion notification message sent by the network side device in a group random access time window.

 The access completion advertisement message is returned after the network side device receives the sequence code and the transmission requirement indication information sent by the primary UE in the user group on the time-frequency resource in the group random access time window.

 The UE is a secondary UE in the user group, the UE and the primary UE use the same random access resource, and the UE does not go to the network side device in the group random access time window. And sending the sequence code and the transmission requirement indication information, where the random access resource includes the sequence code and the time-frequency resource.

 The processor 1802 is configured to determine, according to the access completion advertisement message, that the random access procedure is completed when the receiver 1801 successfully receives the access completion advertisement message in the group random access time window.

 In an optional implementation manner, the transmission requirement indication information includes a quantity of UEs in the user group and an identifier of the user group.

Based on this, the receiver 1801 is specifically configured to receive, after the UE does not have a transmission requirement, return, after the network side device receives the sequence code and the transmission requirement indication information, in the group random access time window. a first random access response RAR, where the first RAR is the access completion And an announcement message, where the first RAR includes location indication information of the transmission request resource. or

 The receiver 1801 is specifically configured to receive, after the UE has a transmission requirement, the first returned by the network side device after receiving the sequence code and the transmission requirement indication information in the group random access time window. RAR, the first RAR includes location indication information of a transmission request resource; and the first RAR is the access completion advertisement message. Alternatively, the receiver 1801 is specifically configured to receive, after the UE has a transmission requirement, the network side device, after receiving the sequence code and the transmission requirement indication information, in the group random access time window. a first RAR, where the first RAR includes location indication information for transmitting a request resource, and receiving a transmission request response message sent by the network side device in the group random access time window; the transmission request response message is The access completion announcement message is described.

 Based on the foregoing, as shown in FIG. 18, the UE further includes: a transmitter 1803. The transmitter 1803 is configured to: according to the location information of the UE in the user group and the location indication information of the transmission request resource, in a corresponding location of the transmission request resource in the group random access time window. The network side device sends a transmission request message.

 Further optionally, the transmission request response message includes information about the UE having a transmission requirement.

 The receiver 1801 is further configured to receive the transmission resource indication information sent by the network side device according to the location information of the UE in the user group. Correspondingly, the transmitter 1803 is further configured to perform data transmission on the transmission resource indicated by the transmission resource indication information.

 The radio network temporary identifier used by the transmitter 1803 for data transmission on the transmission resource indicated by the transmission resource indication information is public information, or the cell radio network temporary identifier C-RNTI of the user group, or according to the pre- It is determined by the determining rule that the public information refers to information that is previously known to all UEs in the user group.

 The preset determination rule may be combined according to the public information and the identifier of the primary UE, or may be combined according to the C-RNTI of the user group and the identifier of the primary UE.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier network side device of the user group.

Based on this, the receiver 1801 is specifically configured to receive, in the group random access time window, the access completion advertisement message that the network side device receives the sequence code and the transmission demand indication message. The second RAR returned after the information; the second RAR includes the starting location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group.

 Further, the receiver 1801 is further configured to receive indication information of the random access resource sent by the network side device.

 Further, the receiver 1801 is further configured to receive indication information of the group random access time window sent by the network side device.

 Further, the UE in this embodiment further includes: a memory 1804. The memory 1804 is used to store the program. In particular, the program can include program code, the program code including computer operating instructions. Memory 1804 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk storage device.

 Processor 1802 may be a medium CPU, or a particular ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

 Optionally, in implementation, if the receiver 1801, the processor 1802, the transmitter 1803, and the memory 1804 are implemented independently of each other, the receiver 1801, the processor 1802, the transmitter 1803, and the memory 1804 may be connected to each other through a bus and complete each other. Communication between. The bus can be an ISA bus, a PCI bus or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 18, but it does not mean that there is only one bus or one type of bus.

 If the receiver 1801, the processor 1802, the transmitter 1803, and the memory 1804 are implemented in a single chip, the receiver 1801, the processor 1802, the transmitter 1803, and the memory 1804 can communicate with each other through an internal interface.

 The UE provided in this embodiment may be used to perform the operation process performed by the secondary UE in the foregoing non-contention-based random access method embodiment. The specific working principle is not described here. For details, refer to the description of the method embodiment.

 The UE provided in this embodiment uses the same random access resource as the secondary UE in the user group, and supports the primary UE to initiate all the UEs in the user group in the group random access time window. A group random access process, in which the random access is initiated by the user group, the number of UEs that initiate random access is reduced, the probability of collision is reduced, and the random access time of the UE is reduced, thereby ensuring that the UE performs normal services. .

FIG. 19 is a schematic structural diagram of a network side device according to another embodiment of the present invention. As shown in Figure 19 The network side device of this embodiment includes: a receiving module 1901, a determining module 1902, and a sending module 1903.

 The receiving module 1901 is configured to receive a sequence code and a transmission requirement indication information that are sent by the primary UE in the user group in a group random access time window, where the primary UE and the secondary UE in the user group use the same random Accessing the resource, and the secondary UE does not send the sequence code and the transmission requirement indication information to the network side device in the group random access time window, where the random access resource includes the sequence code and the time Frequency resources.

 The determining module 1902 is connected to the receiving module 901, and is configured to learn, according to the transmission requirement indication information, information about a UE having a transmission requirement in the user group.

 The sending module 1903 is connected to the receiving module 1901, and is configured to return an access completion notification message after the receiving module 1901 receives the sequence code and the transmission requirement indication information, to notify the UE in the user group to complete random access. process.

 In an optional implementation manner, the transmission requirement indication information includes a quantity of UEs in the user group and an identifier of the user group.

 Based on this, the determining module 1902 is specifically configured to learn, according to the transmission request message sent by the UE with the transmission requirement received by the receiving module 1901, the information of the UE having the transmission requirement. Correspondingly, the sending module 1903 is specifically configured to return to the first RAR after the receiving module 1901 receives the sequence code and the transmission requirement indication information, where the first RAR includes location indication information of the transmission request resource; The first RAR is the access completion advertisement message. The receiving module 1901 is further configured to receive the transmission request message sent by the UE with the transmission requirement on the transmission request resource. Or

The determining module 1902 is specifically configured to learn, according to the transmission request message sent by the UE with the transmission requirement received by the receiving module 1901 on the transmission request resource, the information of the UE with the transmission requirement. Correspondingly, the sending module 1903 is specifically configured to return to the first RAR after the receiving module 1901 receives the sequence code and the transmission requirement indication information, where the first RAR includes location indication information of the transmission request resource; And after the receiving module 1901 receives the transmission request message, sending a transmission request response message to notify the UE having the transmission requirement to complete a random access procedure, where the transmission request response message is the access completion notification message. The receiving module 1901 is further configured to receive the transmission request message sent by the UE with a transmission requirement on the transmission request resource. Further optionally, the transmission request response message includes information about the UE with the transmission requirement.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

 Based on this, the determining module 1902 is specifically configured to learn, according to the starting location information of the UE with the transmission requirement, the number of UEs with the transmission requirement, and the identifier of the user group, that the user group has a transmission requirement. UE information. Correspondingly, the sending module 1903 is specifically configured to: after the receiving module 1901 receives the sequence code and the transmission requirement indication information, return a second RAR, to notify the UE in the user group to complete a random access procedure; The second RAR includes the start location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group; the second RAR is the access completion advertisement message.

 Further, the sending module 1903 is further configured to send the indication information of the random access resource to the UE in the user group.

 Further, the sending module 1903 is further configured to send the indication information of the group random access time window to the UE in the user group.

 The function modules of the network side device provided in this embodiment may be used to perform the operation process performed by the network side device in the foregoing non-contention based random access method embodiment, and the specific working principle is not described here. For details, refer to the method embodiment. description of.

 The network side device provided in this embodiment cooperates with the primary UE in the user group to complete the random access process of the UE with the transmission requirement in the user group, and supports the primary UE to initiate a random access process on behalf of the entire user group, so that the user The group-initiated random access reduces the number of UEs that initiate random access at the same time, reduces the probability of collisions, and reduces the random access time of the UE, ensuring that the UE performs services normally.

 FIG. 20 is a schematic structural diagram of a network side device according to another embodiment of the present invention. As shown in FIG. 20, the network side device of this embodiment includes: a receiver 2001, a processor 2002, and a transmitter 2003.

 The receiver 2002 is configured to receive a sequence code and a transmission requirement indication information that are sent by the primary UE in the user group in a group random access time window.

The primary UE and the secondary UE in the user group use the same random access resource, and the secondary UE does not send the sequence code and the location to the network side device in the group random access time window. The transmission requirement indication information, where the random access resource includes the sequence code and a time-frequency resource. The processor 2002 is configured to learn, according to the transmission requirement indication information, information about a UE having a transmission requirement in the user group.

 The transmitter 2003 is configured to return an access completion notification message after the receiver 2001 receives the sequence code and the transmission requirement indication information, to notify the UE in the user group to complete a random access procedure.

 In an optional implementation manner, the transmission requirement indication information includes a quantity of UEs in the user group and an identifier of the user group.

 Based on this, the processor 2002 is specifically configured to learn, according to the transmission request message sent by the UE with the transmission request received by the receiver 2001 on the transmission request resource, the information of the UE having the transmission requirement. Correspondingly, the transmitter 2003 is specifically configured to return to the first RAR after the receiver 2001 receives the sequence code and the transmission requirement indication information, where the first RAR includes location indication information of the transmission request resource; The first RAR is the access completion advertisement message. The receiver 2001 is further configured to receive the transmission request message sent by the UE with the transmission requirement on the transmission request resource. Or

 The processor 2002 is specifically configured to learn, according to the transmission request message sent by the UE with the transmission requirement received by the receiver 2001 on the transmission request resource, the information of the UE having the transmission requirement. Correspondingly, the transmitter 2003 is specifically configured to return to the first RAR after the receiver 2001 receives the sequence code and the transmission requirement indication information, where the first RAR includes location indication information of the transmission request resource; And after receiving the transmission request message, the receiver sends a transmission request response message to notify the UE with the transmission requirement to complete the random access procedure, where the transmission request response message is the access completion notification message. The receiver 2001 is further configured to receive the transmission request message sent by the UE with the transmission requirement on the transmission request resource.

 Further optionally, the transmission request response message includes information about the UE having a transmission requirement.

 In an optional implementation manner, the transmission requirement indication information includes start location information of a UE having a transmission requirement, a number of UEs having a transmission requirement, and an identifier of the user group.

Based on this, the processor 2002 is specifically configured to learn, according to the start location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group, that the user group has a transmission requirement. UE information. Correspondingly, the transmitter 2003 is specifically configured to return to the second RAR after the receiver 2001 receives the sequence code and the transmission requirement indication information, to notify the The UE in the user group completes the random access procedure; the second RAR includes the start location information of the UE with the transmission requirement, the number of the UEs with the transmission requirement, and the identifier of the user group; The second RAR is the access completion announcement message.

 Further, the transmitter 2003 is further configured to send the indication information of the random access resource to the UE in the user group. Instructions for entering the time window.

 Further, the network side device of this embodiment further includes: a memory 2004. Memory 2004, used to store programs. In particular, the program can include program code, the program code including computer operating instructions. Memory 2004 may include high speed RAM memory and may also include non-volatile memory, such as at least one disk storage device.

 Processor 2002 may be a medium CPU, or a particular ASIC, or one or more integrated circuits configured to implement embodiments of the present invention.

 Optionally, in implementation, if the receiver 2001, the processor 2002, the transmitter 2003, and the memory 2004 are implemented independently of each other, the receiver 2001, the processor 2002, the transmitter 2003, and the memory 2004 may be connected to each other through a bus and complete each other. Communication between. The bus can be an ISA bus, a PCI bus or an EISA bus. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 20, but it does not mean that there is only one bus or one type of bus.

 If the receiver 2001, the processor 2002, the transmitter 2003, and the memory 2004 are integrated in one chip, the receiver 2001, the processor 2002, the transmitter 2003, and the memory 2004 can communicate with each other through an internal interface.

 The network side device provided in this embodiment may be used to perform the operation process performed by the network side device in the foregoing non-contention-based random access method. The specific working principle is not described here. For details, refer to the description of the method embodiment.

The network side device provided in this embodiment cooperates with the primary UE in the user group to complete the random access process of the UE with the transmission requirement in the user group, and supports the primary UE to initiate a random access process on behalf of the entire user group, so that the user The group-initiated random access reduces the number of UEs that initiate random access at the same time, reduces the probability of collisions, and reduces the random access time of the UE, ensuring that the UE performs services normally. A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The method includes the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

 Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting thereof; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims

claims 1. A competition-based random access method, characterized by: including: The primary user equipment UE in the user group sends a layer 2/layer 3 message to the network side device within the group random access time window. The layer 2/layer 3 message includes transmission requirement indication information, and the transmission requirement indication information is used to enable The network side device learns the information of UEs with transmission requirements in the user group; wherein, the primary UE and the secondary UE in the user group use the same random access resources, and the secondary UE is in the The sequence code is not sent to the network side device within the group random access time window, and the random access resource includes the sequence code and time-frequency resources; The master UE receives the access completion notification message returned by the network side device after receiving the layer 2/layer 3 message within the group random access time window to complete the random access process. 2. The contention-based random access method according to claim 1, wherein the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group. 3. The contention-based random access method according to claim 2, characterized in that, if the primary UE has no transmission requirement, the access received by the primary UE within the group random access time window The entry completion notification message is the first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message. The first contention resolution message includes location indication information of the transmission request resource. 4. The contention-based random access method according to claim 2, characterized in that, if the group leader has transmission needs, the main UE receives the network side information within the group random access time window. The access completion notification message returned by the device after receiving the layer 2/layer 3 message to complete the random access process includes: The primary UE receives a first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message within the group random access time window, and the first contention resolution message includes Transmitting the location indication information of the requested resource; the first contention resolution message is the access completion notification message; The primary UE sends a request to the network side at the corresponding location of the transmission request resource within the group random access time window based on its location information in the user group and the location indication information of the transmission request resource. The device sends a transfer request message. 5. The contention-based random access method according to claim 2, characterized in that, if the main UE has transmission needs, the main UE receives the network information within the random access time window of the group. The access completion notification message returned by the side device after receiving the layer 2/layer 3 message to complete the random access process includes: The primary UE receives a first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message within the group random access time window, and the first contention resolution message includes Transmitting the location indication information of the requested resource; The primary UE sends a request to the network side at the corresponding location of the transmission request resource within the group random access time window based on its location information in the user group and the location indication information of the transmission request resource. The device sends a transmission request message; The primary UE receives the transmission request response message sent by the network side device within the group random access time window to complete the random access process; the transmission request response message is the access completion notification message. 6. The contention-based random access method according to claim 5, characterized in that the transmission request response message includes the information of the UE with transmission requirements. 7. The contention-based random access method according to claim 5 or 6, characterized in that the main UE receives the transmission request response message sent by the network side device within the set of random access time windows. , to complete the random access process including: The master UE receives the transmission resource indication information sent by the network side device according to its location information in the user group, and performs data transmission on the transmission resource indicated by the transmission resource indication information. 8. The contention-based random access method according to claim 7, wherein the wireless network temporary identity used by the primary UE for data transmission on the transmission resource indicated by the transmission resource indication information is a public The information, or the cell radio network temporary identity C-RNTL of the user group, may be determined according to preset determination rules, and the public information refers to information that is known in advance by all UEs in the user group. 9. The contention-based random access method according to claim 8, wherein the preset determination rule is based on a combination of the public information and the identity of the primary UE, or is based on the The C-RNTI of the user group is combined with the identity of the primary UE. 10. The contention-based random access method according to claim 1, wherein the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements and the The ID of the user group. 11. The contention-based random access method according to claim 10, characterized in that, the access completion notification message received by the main UE within the set of random access time windows is from the network side. The second contention resolution message returned by the device after receiving the layer 2/layer 3 message. The second contention resolution message includes the starting location information of the UE with transmission needs, the UE with transmission needs. The number of UEs and the identity of the user group. 12. The contention-based random access method according to any one of claims 1 to 11, characterized in that, the primary user equipment UE in the user group sends layer information to the network side device within the group random access time window. 2/Layer 3 messages previously included: The primary UE determines whether the random access response RAR sent by the network side device is successfully received within the group of random access time windows. The RAR is the response of the network side device when it receives the location of the primary UE. Returned after the sequence code is sent on the time-frequency resource within the set of random access time windows; If the RAR is successfully received within the set of random access time windows, the master UE sends the layer 2/layer 3 message to the network side device within the set of random access time windows. 13. The contention-based random access method according to claim 12, further comprising: If the RAR is not successfully received within the set of random access time windows, the master UE initiates a random access process to the network side device. 14. The contention-based random access method according to claim 12 or 13, characterized in that, the main UE sends the sequence code on the time-frequency resource within the group of random access time windows. include: The primary UE obtains the pre-agreed random access resources; or The master UE calculates the random access resources through public information. The public information refers to information that is known in advance by all UEs in the user group. 15. The contention-based random access method according to any one of claims 1 to 14, characterized in that, the primary user equipment UE in the user group sends layer information to the network side device within the group random access time window. 2/Layer 3 messages previously included: The primary UE receives the indication information of the group of random access time windows sent by the network side device; or 16. A competition-based random access method, characterized by: including: The secondary user equipment UE in the user group receives the random access response RAR sent by the network side device within the group random access time window. If the RAR is successfully received within the group random access time window, the secondary UE Obtain the temporary cell radio network temporary identifier TC-RNTI from the RAR; wherein, the RAR is the time and frequency of the network side device when receiving the primary UE in the user group within the group random access time window. Returned after the sequence code sent on the resource; the primary UE and the secondary UE use the same random access resource, and the secondary UE does not send data to the network side device within the group of random access time windows. The sequence code, the random access resource includes the sequence code and the time-frequency resource; The auxiliary UE receives the access completion notification message sent by the network side device within the group random access time window. If the access completion notification message is successfully received within the group random access time window, The TC-RNTI of the user group is used as the cell radio network temporary identifier C-RNTI of the user group to complete the random access process; wherein, the access completion notification message is received by the network side device. Returned after the layer 2/layer 3 message sent by the primary UE within the set of random access time windows, the layer 2/layer 3 message includes transmission requirement indication information, and the transmission requirement indication information is used to enable the network The side device obtains information about UEs in the user group that have transmission requirements. 17. The contention-based random access method according to claim 16, wherein the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group. 18. The contention-based random access method according to claim 17, characterized in that, if the secondary UE has no transmission requirement, the access received by the secondary UE within the group random access time window The entry completion notification message is the first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message. The first contention resolution message includes location indication information of the transmission request resource. 19. The contention-based random access method according to claim 17, characterized in that, if the secondary UE has transmission needs, the secondary UE receives the network-side data within the random access time window of the group. The access completion notification message sent by the device includes: The auxiliary UE receives the first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message within the group random access time window, and the first contention resolution message includes Transmitting the location indication information of the requested resource; the first contention resolution message is the access completion notification message; The auxiliary UE sends a request to the network side at the corresponding position of the transmission request resource within the group random access time window based on its location information in the user group and the location indication information of the transmission request resource. The device sends a transmission request message, so that the network side device knows that the secondary UE has transmission requirements. 20. The contention-based random access method according to claim 17, characterized in that, if the secondary UE has transmission needs, the secondary UE receives the network-side data within the random access time window of the group. The access completion notification message sent by the device includes: The auxiliary UE receives the first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message within the group random access time window, and the first contention resolution message includes Transmitting the location indication information of the requested resource; The auxiliary UE sends a request to the network side at the corresponding position of the transmission request resource within the group random access time window based on its location information in the user group and the location indication information of the transmission request resource. The device sends a transmission request message so that the network side device knows that the secondary UE has transmission requirements; The secondary UE receives the transmission request response message sent by the network side device within the group random access time window; the transmission request response message is the access completion notification message. 21. The contention-based random access method according to claim 20, characterized in that the transmission request response message includes the information of the UE with transmission requirements. 22. The contention-based random access method according to claim 19 or 20, characterized in that the auxiliary UE receives the transmission request response message sent by the network side device within the group random access time window. Then include: The secondary UE receives the transmission resource indication information sent by the network side device according to its location information in the user group, and performs data transmission on the transmission resource indicated by the transmission resource indication information. 23. The contention-based random access method according to claim 22, wherein the wireless network temporary identity used by the auxiliary UE for data transmission on the transmission resource indicated by the transmission resource indication information is a public The information, or the cell radio network temporary identity C-RNTL of the user group, may be determined according to preset determination rules, and the public information refers to information that is known in advance by all UEs in the user group. 24. The contention-based random access method according to claim 23, characterized in that: The preset determination rule is a combination of the public information and the identity of the primary UE, or a combination of the C-RNTI of the user group and the identity of the primary UE. 25. The contention-based random access method according to claim 16, wherein the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements and the The ID of the user group. 26. The contention-based random access method according to claim 25, characterized in that, the access completion notification message received by the auxiliary UE within the group random access time window is from the network side. The second contention resolution message returned by the device after receiving the layer 2/layer 3 message. The second contention resolution message includes the starting location information of the UE with transmission needs, the UE with transmission needs. The number of UEs and the identity of the user group. 27. The contention-based random access method according to any one of claims 16-26, characterized in that it further includes: If the RAR is not successfully received within the set of random access time windows or the access completion notification message is not successfully received within the set of random access time windows, the auxiliary UE reports to the network side The device initiates a random access process. 28. The contention-based random access method according to any one of claims 16 to 27, characterized in that, the auxiliary user equipment UE in the user group receives the data sent by the network side device within the group random access time window. The random access response before the RAR includes: The secondary UE obtains the pre-agreed random access resources; or The secondary UE calculates the random access resources through public information. The public information refers to information that is known in advance by all UEs in the user group. 29. The contention-based random access method according to any one of claims 16 to 28, characterized in that, the auxiliary user equipment UE in the user group receives the data sent by the network side device within the group random access time window. The random access response before the RAR includes: The secondary UE receives the indication information of the group of random access time windows sent by the network side device; or 30. A competition-based random access method, characterized by: including: The network side device receives the Layer 2/Layer 3 message sent by the primary user equipment UE in the user group within the group random access time window, where the Layer 2/Layer 3 message includes transmission requirement indication information; wherein, the primary The UE and the secondary UE in the user group use the same random access resource, and the secondary UE does not send a sequence code to the network side device within the random access time window of the group, and the random access resource Including the sequence code and time-frequency resources; The network side device learns the information of the UEs in the user group that have transmission requirements based on the transmission requirement indication information, and returns an access completion notification message after receiving the layer 2/layer 3 message to notify all users. The UEs in the user group complete the random access process. 31. The contention-based random access method according to claim 30, wherein the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group. 32. The contention-based random access method according to claim 31, characterized in that the network side device learns, based on the transmission demand indication information, which users in the user group have transmission requirements. UE information, and after receiving the layer 2/layer 3 message, return the access completion notification message to notify the UE in the user group to complete the random access process, including: The network side device allocates transmission request resources to the user group according to the number of UEs in the user group and the identity of the user group; The network side device returns a first contention resolution message after receiving the layer 2/layer 3 message. The first contention resolution message includes the location indication information of the transmission request resource. The first contention resolution message includes the location indication information of the transmission request resource. The resolution message is the access completion notification message; The network side device receives a transmission request message sent by the UE with data transmission requirements on the transmission request resource, and obtains the information of the UE with transmission requirements according to the transmission request message. 33. The contention-based random access method according to claim 31, characterized in that, the network side device obtains the information of the UEs with transmission requirements in the user group according to the transmission requirement indication information, and Returning an access completion notification message after receiving the layer 2/layer 3 message to notify the UE in the user group to complete the random access process includes: The network side device allocates transmission request resources to the user group according to the number of UEs in the user group and the identity of the user group; The network side device returns a first contention resolution message after receiving the layer 2/layer 3 message, where the first contention resolution message includes location indication information of the transmission request resource; The network side device receives a transmission request message sent by the UE with data transmission needs on the transmission request resource, and learns the data of the UE with data transmission needs according to the transmission request message. information; The network side device returns a transmission request response message to inform the UE with transmission needs to complete the random access process, and the transmission request response message is the access completion notification message. 34. The contention-based random access method according to claim 33, wherein the transmission request response message includes the information of the UE with transmission requirements. 35. The contention-based random access method according to claim 30, wherein the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements and the The ID of the user group. 36. The contention-based random access method according to claim 35, characterized in that the network side device learns, based on the transmission demand indication information, which users in the user group have transmission requirements. UE information, and after receiving the layer 2/layer 3 message, return the access completion notification message to notify the UE in the user group to complete the random access process, including: The network side device obtains the information of the UEs that have transmission needs in the user group based on the starting location information of the UEs that have transmission needs and the number of the UEs that have transmission needs; After receiving the layer 2/layer 3 message, the network side device returns a second contention resolution message to notify the UE in the user group to complete the random access process; the second contention resolution message includes the The starting location information of the UEs with transmission needs, the number of the UEs with transmission needs, and the identification of the user group; the second contention resolution message is the access completion notification message. 37. The contention-based random access method according to any one of claims 30 to 36, characterized in that the network side device receives a message sent by the primary user equipment UE in the user group within the group random access time window. The Layer 2/Layer 3 messages previously included: The network side device sends the indication information of the random access time window of the group to the UEs in the user group; or The network side device agrees with the UEs in the user group on the group random access time window in advance. 38. A random access method based on non-competition, characterized by: including: The primary user equipment UE in the user group sends a sequence code and transmission requirement indication information to the network side device within the group random access time window. The transmission requirement indication information is used to let the network side device know that there is transmission in the user group. Information about the required UE; wherein, the primary UE and the secondary UE in the user group use the same random access resources, and the secondary UE does not send data to the network side within the random access time window of the group. The device sends a sequence code and the transmission requirement indication information, and the random access information The source includes the sequence code and time-frequency resources; The master UE receives the access completion notification message returned by the network side device after receiving the sequence code and the transmission requirement indication information within the group random access time window to complete the random access process. 39. The non-contention-based random access method according to claim 38, wherein the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group. 40. The non-contention-based random access method according to claim 39, characterized in that, if the primary UE has no transmission requirement, the primary UE receives the The access completion notification message is the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information; the first RAR includes location indication information of the transmission request resource. 41. The non-contention-based random access method according to claim 39, characterized in that, if the main UE has transmission needs, the main UE receives the network information within the set of random access time windows. The access completion notification message returned by the side device after receiving the sequence code and the transmission requirement indication information to complete the random access process includes: The primary UE receives the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information within the set of random access time windows, and the first RAR includes a transmission request resource. The location indication information of A transmission request message is sent to the network side device at a corresponding position of the transmission request resource within the access time window. 42. The non-contention-based random access method according to claim 39, characterized in that, if the main UE has transmission needs, the main UE receives the network information within the random access time window of the group. The access completion notification message returned by the side device after receiving the sequence code and the transmission requirement indication information to complete the random access process includes: The primary UE receives the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information within the set of random access time windows, and the first RAR includes a transmission request resource. location indication information; The primary UE determines the corresponding location of the transmission request resource within the group random access time window based on its location information in the user group and the location indication information of the transmission request resource. Send a transmission request message to the network side device; The primary UE receives the transmission request response message sent by the network side device within the group random access time window to complete the random access process; the transmission request response message is the access completion notification message. 43. The non-contention-based random access method according to claim 42, wherein the transmission request response message includes the information of the UE with transmission requirements. 44. The non-contention-based random access method according to claim 42 or 43, characterized in that the main UE receives the transmission request response sent by the network side device within the group random access time window. message to complete the random access process including: The master UE receives the transmission resource indication information sent by the network side device according to its location information in the user group, and performs data transmission on the transmission resource indicated by the transmission resource indication information. 45. The non-contention-based random access method according to claim 44, wherein the wireless network temporary identifier used by the primary UE for data transmission on the transmission resource indicated by the transmission resource indication information is The public information, or the cell radio network temporary identity C-RNTL of the user group, may be determined according to preset determination rules. The public information refers to information that all UEs in the user group know in advance. 46. The non-contention-based random access method according to claim 45, wherein the preset determination rule is a combination of the public information and the identity of the primary UE, or is It is formed by combining the C-RNTI of the user group and the identity of the primary UE. 47. The non-contention-based random access method according to claim 38, wherein the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements and the number of UEs with transmission requirements. The identifier of the user group. 48. The non-contention-based random access method according to claim 47, characterized in that, the access completion notification message received by the primary UE within the group random access time window is the network The second RAR returned by the side device after receiving the sequence code and the transmission requirement indication information, the second RAR including the starting location information of the UE with transmission requirement, the location information of the UE with transmission requirement, quantity and identification of said user group. 49. The non-contention-based random access method according to any one of claims 38 to 48, characterized in that, the primary user equipment UE in the user group sends a request to the network side within the group random access time window. Before the device sends the serial code and transmission requirement indication information, it includes: The primary UE receives the indication information of the random access resource sent by the network side device. 50. The non-contention-based random access method according to any one of claims 38 to 49, characterized in that, the primary user equipment UE in the user group sends to the network side device within the group random access time window. The sequence code and transmission requirement indication information previously include: The primary UE receives the indication information of the group of random access time windows sent by the network side device; or 51. A random access method based on non-competition, characterized by: including: The secondary user equipment UE in the user group receives the access completion notification message sent by the network side device within the group random access time window; Wherein, the access completion notification message is returned by the network side device after receiving the sequence code and transmission requirement indication information sent by the primary UE in the user group on the time-frequency resource within the random access time window of the group. ; The primary UE and the secondary UE use the same random access resources, and the secondary UE does not send the sequence code and the transmission to the network side device within the group of random access time windows. Requirement indication information, the random access resource includes the sequence code and the time-frequency resource; If the access completion notification message is successfully received within the group of random access time windows, the auxiliary UE will The above-mentioned access completion notification message is sent to confirm the completion of the random access process. 52. The non-contention-based random access method according to claim 51, wherein the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group. 53. The non-contention-based random access method according to claim 52, characterized in that, if the secondary UE has no transmission requirement, the secondary UE receives the The access completion notification message is the first random access response RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information. The first RAR includes location indication information of the transmission request resource. 54. The non-contention-based random access method according to claim 52, characterized in that if the secondary UE has transmission needs, the secondary user equipment UE in the user group is within the group random access time window. Receiving the access completion notification message sent by the network side device includes: The auxiliary UE receives the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information within the group of random access time windows, and the first RAR packet including the location indication information of the transmission request resource; the first RAR is the access completion notification message; the auxiliary UE according to its location information in the user group and the location indication information of the transmission request resource, A transmission request message is sent to the network side device at the corresponding position of the transmission request resource within the group of random access time windows. 55. The non-contention-based random access method according to claim 52, characterized in that, if the secondary UE has transmission needs, the secondary user equipment UE in the user group is within the group random access time window. Receiving the access completion notification message sent by the network side device includes: The auxiliary UE receives the first RAR returned by the network side device after receiving the sequence code and the transmission requirement indication information within the group of random access time windows, and the first RAR includes a transmission request resource. location indication information; The auxiliary UE sends a request to the network side at the corresponding position of the transmission request resource within the group random access time window based on its location information in the user group and the location indication information of the transmission request resource. The device sends a transmission request message; The secondary UE receives the transmission request response message sent by the network side device within the group random access time window; the transmission request response message is the access completion notification message. 56. The non-contention-based random access method according to claim 55, characterized in that the transmission request response message includes the information of the UE with transmission requirements. 57. The non-contention-based random access method according to claim 55 or 56, characterized in that the auxiliary UE receives the transmission request response sent by the network side device within the group random access time window. The message includes: The secondary UE receives the transmission resource indication information sent by the network side device according to its location information in the user group, and performs data transmission on the transmission resource indicated by the transmission resource indication information. 58. The non-contention-based random access method according to claim 57, wherein the wireless network temporary identifier used by the auxiliary UE for data transmission on the transmission resource indicated by the transmission resource indication information is The public information, or the cell radio network temporary identity C-RNTL of the user group, may be determined according to preset determination rules. The public information refers to information that all UEs in the user group know in advance. 59. The non-contention-based random access method according to claim 58, wherein the preset determination rule is a combination of the public information and the identity of the primary UE, or It is formed based on the combination of the C-RNTI of the user group and the identity of the primary UE. 60. The non-contention-based random access method according to claim 51, wherein the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements and the number of UEs with transmission requirements. The user group identifies the network-side device. 61. The non-contention-based random access method according to claim 60, wherein the access completion notification message received by the auxiliary UE within the group random access time window is the network side device. The second RAR returned after receiving the sequence code and the transmission requirement indication information; the second RAR includes the starting location information of the UE with transmission requirement, the number of the UE with transmission requirement and The identifier of the user group. 62. The non-contention-based random access method according to any one of claims 51-61, characterized in that, the auxiliary user equipment UE in the user group receives network side equipment within the group random access time window. The access completion notification message sent includes: The secondary UE receives the indication information of the random access resource sent by the network side device. 63. The non-contention-based random access method according to any one of claims 51 to 62, characterized in that, the auxiliary user equipment UE in the user group receives network side equipment within the group random access time window. The access completion notification message sent includes: The secondary UE receives the indication information of the group of random access time windows sent by the network side device; or 64. A random access method based on non-competition, characterized by: including: The network side device receives the sequence code and transmission requirement indication information sent by the primary user equipment UE in the user group within the group random access time window; wherein, the primary UE and the secondary UE in the user group use the same random access time window. resources, and the auxiliary UE does not send the sequence code and the transmission requirement indication information to the network side device within the group of random access time windows, the random access resources include the sequence code and time frequency resource; The network side device learns the information of the UEs in the user group that have transmission requirements based on the transmission requirement indication information, and returns an access completion notification message after receiving the sequence code and the transmission requirement indication information, to notify the UEs in the user group to complete the random access process. 65. The non-contention-based random access method according to claim 64, wherein the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group. 66. The non-contention-based random access method according to claim 64, characterized in that, the network side device learns the information of UEs with transmission requirements in the user group according to the transmission requirement indication information, And after receiving the sequence code and the transmission requirement indication information, returning an access completion notification message to notify the UE in the user group to complete the random access process includes: The network side device returns the first RAR after receiving the sequence code and the transmission requirement indication information. The first RAR includes the location indication information of the transmission request resource; the first RAR is the connection Enter completion notification message; The network side device receives the transmission request message sent by the UE with transmission requirements on the transmission request resource, and obtains the information of the UE with transmission requirements according to the transmission request message. 67. The non-contention-based random access method according to claim 64, characterized in that, the network side device learns the information of UEs with transmission requirements in the user group based on the transmission requirement indication information, And after receiving the sequence code and the transmission requirement indication information, returning an access completion notification message to notify the UE in the user group to complete the random access process includes: The network side device returns the first RAR after receiving the sequence code and the transmission requirement indication information, and the first RAR includes location indication information of the transmission request resource; The network side device receives the transmission request message sent by the UE with transmission requirements on the transmission request resource, and obtains the information of the UE with transmission requirements according to the transmission request message; The network side device sends a transmission request response message to notify the UE with transmission needs to complete the random access process, and the transmission request response message is the access completion notification message. 68. The non-contention-based random access method according to claim 67, characterized in that the transmission request response message includes the information of the UE with transmission requirements. 69. The non-contention-based random access method according to claim 64, wherein the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements and the number of UEs with transmission requirements. The identifier of the user group. 70. The non-contention-based random access method according to claim 69, characterized in that, the network side device learns the information of UEs with transmission requirements in the user group according to the transmission requirement indication information, And after receiving the sequence code and the transmission requirement indication information, returning an access completion notification message to notify the UE in the user group to complete the random access process includes: The network side device obtains the information of the UEs that have transmission needs in the user group based on the starting location information of the UEs that have transmission needs, the number of the UEs that have transmission needs, and the identity of the user group; After receiving the sequence code and the transmission requirement indication information, the network side device returns a second RAR to notify the UE in the user group to complete the random access process; the second RAR includes the transmission The starting location information of the required UE, the number of the UEs with transmission requirements and the identity of the user group; the second RAR is the access completion notification message. 71. The non-contention-based random access method according to any one of claims 64 to 70, characterized in that the network side device receives the primary user equipment UE in the user group within the group random access time window. The serial code sent previously includes: The network side device sends the indication information of the random access resource to the UE in the user group. 72. The non-contention-based random access method according to any one of claims 64 to 71, characterized in that the network side device receives the primary user equipment UE in the user group within the group random access time window. The serial code sent previously includes: The network side device sends the indication information of the random access time window of the group to the UEs in the user group; or The network side device agrees with the UEs in the user group on the group random access time window in advance. 73. A user equipment UE, characterized in that it includes: A sending module, configured to send a layer 2/layer 3 message to the network side device within the group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information, and the transmission requirement indication information is used to enable the network The side device learns the information of the UE in the user group that has transmission requirements; wherein the UE is the primary UE in the user group, the UE and the secondary UE in the user group use the same random access resources, and The auxiliary UE does not send a sequence code to the network side device within the group of random access time windows, and the random access resources include the sequence code and time-frequency resources; The receiving module is configured to receive an access completion notification message returned by the network side device after receiving the layer 2/layer 3 message within the group of random access time windows, so as to complete the random access process. 74. The UE according to claim 73, wherein the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group. 75. The UE according to claim 74, wherein the receiving module is specifically used to When the UE has no transmission requirements, receive the first contention resolution message returned by the network side device after receiving the layer 2/layer 3 message within the group random access time window, the first contention resolution message being returned by the network side device after receiving the layer 2/layer 3 message, The contention resolution message is the access completion notification message, and the first contention resolution message includes location indication information of the transmission request resource. 76. The UE according to claim 74, wherein the receiving module is specifically configured to receive the network side device's response after receiving the layer 2/layer 3 message when the UE has a transmission requirement. The first contention resolution message includes the location indication information of the transmission request resource; the first contention resolution message is the access completion notification message; The sending module is also configured to, according to the location information of the UE in the user group and the location indication information of the transmission request resource, at the corresponding location of the transmission request resource within the group random access time window. Send a transmission request message to the network side device. 77. The UE according to claim 74, characterized in that, the receiving module is specifically configured to receive, when the UE has a transmission requirement, the network side device receives a message within the group of random access time windows. The first contention resolution message returned after the layer 2/layer 3 message, the first contention resolution message includes location indication information of the transmission request resource; and receiving the network within the group random access time window The transmission request response message sent by the side device to complete the random access process; the transmission request response message is the access completion notification message; The sending module is also configured to, before the receiving module receives the transmission request response message, according to the location information of the UE in the user group and the location indication information of the transmission request resource, randomly in the group The transmission request message is sent to the network side device at the corresponding position of the transmission request resource within the access time window. 78. The UE according to claim 77, wherein the transmission request response message includes information about the UE with transmission requirements. 79. The UE according to claim 77 or 78, wherein the receiving module is further configured to receive transmission resource indication information sent by the network side device according to the location information of the UE in the user group. ; The sending module is also configured to transmit data on the transmission resource indicated by the transmission resource indication information. 80. The UE according to claim 79, wherein the sending module uses a wireless network temporary identifier for data transmission on the transmission resource indicated by the transmission resource indication information. It is public information, or the cell radio network temporary identifier C-RNTI of the user group, or is determined according to a preset determination rule. The public information refers to information that all UEs in the user group know in advance. 81. The UE according to claim 80, wherein the preset determination rule is based on a combination of the public information and the identity of the UE, or is based on the identity of the user group. C-RNTI is combined with the identity of the UE. 82. The UE according to claim 73, wherein the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements, and the identification of the user group. 83. The UE according to claim 82, characterized in that, the receiving module is specifically configured to receive the network side device within the group of random access time windows after receiving the layer 2/layer 3 message. The second contention resolution message returned is the access completion notification message, and the second contention resolution message includes the starting location information of the UE with transmission requirements, the The number of UEs with transmission requirements and the identity of the user group. 84. The UE according to any one of claims 73 to 83, further comprising: a judgment module, configured to determine whether the random number in the group is the same before the sending module sends the layer 2/layer 3 message. Whether the random access response RAR sent by the network side device is successfully received within the access time window. The RAR is the result of the network side device successfully receiving the UE within the group random access time entry time window. When receiving the RAR, the sending module is triggered to send the layer 2/layer 3 message to the network side device within the set of random access time windows. 85. The UE according to claim 84, further comprising: A random process initiating module is configured to initiate a random access process to the network side device when the judgment module determines that the RAR has not been successfully received within the set of random access time windows. 86. The UE according to claim 84 or 85, further comprising: an acquisition module, configured to acquire the pre-agreed random access resources, or to calculate the random access resources through public information. Resources, the public information refers to information that all UEs in the user group know in advance. 87. The UE according to any one of claims 73 to 86, wherein the receiving module is further configured to receive a message sent by the network side device before the sending module sends the layer 2/layer 3 message. The instruction information of the group of random access time windows sent. 88. A user equipment UE, characterized by: including: A receiving module, configured to receive a random access response RAR sent by the network side device within the group random access time window, and receive an access completion notification message sent by the network side device within the group random access time window; An acquisition module configured to acquire the temporary cell radio network temporary identifier TC-RNTI from the RAR when the receiving module successfully receives the RAR within the set of random access time windows; wherein, the RAR is The network side device returns after receiving the sequence code sent by the primary UE in the user group on the time-frequency resource within the random access time window of the group; the UE is a secondary UE in the user group, so The UE and the primary UE use the same random access resources, and the UE does not send the sequence code to the network side device within the group of random access time windows, and the random access resources include the the sequence code and the time-frequency resource; The access completion module is configured to use the TC-RNTI of the user group as the cell of the user group when the receiving module successfully receives the access completion notification message within the random access time window of the group. The wireless network temporary identifier C-RNTI is used to complete the random access process; wherein, the access completion notification message is a layer 2 message sent by the network side device when the primary UE receives the random access time window of the group. Returned after the /Layer 3 message, the Layer 2/Layer 3 message includes transmission requirement indication information, and the transmission requirement indication information is used to enable the network side device to learn information about UEs in the user group that have transmission requirements. 89. The UE according to claim 88, wherein the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group. 90. The UE according to claim 89, characterized in that, the receiving module is specifically configured to receive, when the UE has no transmission requirement, the network side device receives a message within the random access time window of the group. The first contention resolution message returned after the layer 2/layer 3 message, the first contention resolution message is the access completion notification message, the first contention resolution message includes a location indication of the transmission request resource information. 91. The UE according to claim 89, characterized in that, the receiving module is specifically configured to receive, when the UE has a transmission requirement, the network side device receives a message within the random access time window of the group. The first contention resolution message returned after the layer 2/layer 3 message, the first contention resolution message includes the location indication information of the transmission request resource; the first contention resolution message is the connection Enter completion notification message; The UE also includes: A sending module, configured to send a message to the corresponding location of the transmission request resource within the group random access time window according to the location information of the UE in the user group and the location indication information of the transmission request resource. The network side device sends a transmission request message, so that the network side device knows that the UE has a transmission requirement. 92. The UE according to claim 89, characterized in that, the receiving module is specifically configured to receive, when the UE has a transmission need, the network side device receives a message within the random access time window of the group. The first contention resolution message returned after the layer 2/layer 3 message, the first contention resolution message includes location indication information of the transmission request resource; and receiving the network within the group random access time window The transmission request response message sent by the side device; The transmission request response message is the access completion notification message; The UE also includes: A sending module, configured to send a message to the corresponding location of the transmission request resource within the group random access time window according to the location information of the UE in the user group and the location indication information of the transmission request resource. The network side device sends a transmission request message, so that the network side device knows that the UE has a transmission requirement. 93. The UE according to claim 92, wherein the transmission request response message includes information about the UE with transmission requirements. 94. The UE according to claim 92 or 93, wherein the receiving module is further configured to receive transmission resource indication information sent by the network side device according to the location information of the UE in the user group. ; The sending module is also configured to transmit data on the transmission resource indicated by the transmission resource indication information. 95. The UE according to claim 94, characterized in that, the wireless network temporary identifier used by the sending module for data transmission on the transmission resource indicated by the transmission resource indication information is public information or the user group's The cell radio network temporary identifier C-RNTI may be determined according to preset determination rules, and the public information refers to information that all UEs in the user group know in advance. 96. The UE according to claim 95, wherein the preset determination rule is a root It is formed based on a combination of the public information and the identity of the primary UE, or a combination of the C-RNTI of the user group and the identity of the primary UE. 97. The UE according to claim 88, wherein the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements, and the identification of the user group. 98. The UE according to claim 97, characterized in that, the receiving module is specifically configured to receive the network side device within the group of random access time windows after receiving the layer 2/layer 3 message. The second contention resolution message returned is the access completion notification message, and the second contention resolution message includes the starting location information of the UE with transmission requirements, the The number of UEs with transmission requirements and the identity of the user group. 99. The UE according to any one of claims 88 to 98, further comprising: a random process initiating module, configured to receive all the data that the receiving module fails to receive within the set of random access time windows. When the RAR fails to receive the access completion notification message successfully or within the random access time window of the group, initiate a random access process to the network side device. 100. The UE according to any one of claims 88 to 99, further comprising: an acquisition module, configured to acquire the pre-agreed random access resources, or to calculate the random access resources through public information. Access resources, the public information refers to information that all UEs in the user group know in advance. 101. The UE according to any one of claims 88 to 100, wherein the receiving module is further configured to receive indication information of the group of random access time windows sent by the network side device. 102. A network side device, characterized by including: A receiving module, configured to receive a layer 2/layer 3 message sent by the primary user equipment UE in the user group within the group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information; wherein, the primary user equipment UE The UE and the secondary UE in the user group use the same random access resource, and the secondary UE does not send a sequence code to the network side device within the random access time window of the group, and the random access resource Including the sequence code and time-frequency resources; Determining module, configured to obtain information about UEs with transmission requirements in the user group according to the transmission requirement indication information; The sending module is configured to return an access completion notification message after the receiving module receives the layer 2/layer 3 message, so as to notify the UEs in the user group to complete the random access process. 103. The network side device according to claim 102, wherein the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group. 104. The network side device according to claim 103, wherein the determining module is specifically configured to allocate transmission request resources to the user group according to the number of UEs in the user group and the identity of the user group, And obtain the information of the UE with data transmission needs based on the transmission request message sent by the UE with data transmission needs on the transmission request resource received by the receiving module; The sending module is specifically configured to return a first contention resolution message after the receiving module receives the layer 2/layer 3 message. The first contention resolution message includes the location indication information of the transmission request resource, The first contention resolution message is the access completion notification message; The receiving module is also configured to receive the transmission request message sent by the UE with data transmission requirements on the transmission request resource. 105. The network side device according to claim 103, wherein the determining module is specifically configured to allocate transmission request resources to the user group according to the number of UEs in the user group and the identity of the user group, And obtain the information of the UE with data transmission needs based on the transmission request message sent by the UE with data transmission needs on the transmission request resource received by the receiving module; The sending module is specifically configured to return a first contention resolution message after the receiving module receives the layer 2/layer 3 message, where the first contention resolution message includes location indication information of the transmission request resource; And after the receiving module receives the transmission request message sent by the UE with data transmission needs on the transmission request resource, it sends a transmission request response message to inform the UE with data transmission needs to complete the random access. Entering the process, the transmission request response message is the access completion notification message; The receiving module is also configured to receive a transmission request message sent by the UE with data transmission requirements on the transmission request resource. 106. The network side device according to claim 105, characterized in that the transmission request response message includes the information of the UE with transmission requirements. 107. The network side device according to claim 102, wherein the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements, and the identification of the user group. 108. The network side device according to claim 107, characterized in that the determining module is specifically configured to obtain the starting location information of the UE with transmission needs and the number of UEs with transmission needs. Information about UEs with transmission requirements in the user group; The sending module is specifically configured to return a second contention resolution message after the receiving module receives the layer 2/layer 3 message to notify the UE in the user group to complete the random access process; the second The contention resolution message includes the starting location information of the UE with transmission needs, the number of the UEs with transmission needs, and the identity of the user group; the second contention resolution message is the access completion notification. information. 109. The network side device according to any one of claims 102 to 108, characterized in that the sending module is further configured to send indication information of the group random access time window to the UEs in the user group. 110. A user equipment UE, characterized in that it includes: A sending module, configured to send the sequence code and transmission requirement indication information to the network side device within the group random access time window. The transmission requirement indication information is used to enable the network side device to learn information about UEs in the user group that have transmission requirements. ; Wherein, the UE is the primary UE in the user group, the UE and the secondary UE in the user group use the same random access resources, and the secondary UE is in the random access time window of the group The sequence code and the transmission requirement indication information are not sent to the network side device, and the random access resources include the sequence code and time-frequency resources; A receiving module, configured to receive an access completion notification message returned by the network side device after receiving the sequence code and the transmission requirement indication information within the group of random access time windows, to complete the random access process. 111. The UE according to claim 110, wherein the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group. 112. The UE according to claim 111, characterized in that, the receiving module is specifically configured to receive, when the UE has no transmission requirement, the network side device receives the message within the random access time window. The first RAR returned after the sequence code and the transmission requirement indication information; the -th RAR is the access completion notification message, and the -th RAR includes location indication information of the transmission request resource. 113. The UE according to claim 111, characterized in that, the receiving module is specifically configured to receive the network side device within the group random access time window when the UE has transmission needs. Prepare a first RAR returned after receiving the sequence code and the transmission requirement indication information, where the first RAR includes the location indication information of the transmission request resource; the first RAR is the access completion notification message; The sending module is also configured to, according to the location information of the UE in the user group and the location indication information of the transmission request resource, at the corresponding location of the transmission request resource within the group random access time window. Send a transmission request message to the network side device. 114. The UE according to claim 111, characterized in that, the receiving module is specifically configured to receive, when the UE has a transmission requirement, the network side device receives a message within the group random access time window. The first RAR returned after the sequence code and the transmission requirement indication information, the first RAR including the location indication information of the transmission request resource, and receiving the transmission from the network side device within the set of random access time windows. The transmission request response message is to complete the random access process; the transmission request response message is the access completion notification message; The sending module is also configured to, before the receiving module receives the transmission request response message, according to the location information of the UE in the user group and the location indication information of the transmission request resource, randomly in the group A transmission request message is sent to the network side device at a corresponding position of the transmission request resource within the access time window. 115. The UE according to claim 114, wherein the transmission request response message includes information about the UE with transmission requirements. 116. The UE according to claim 114 or 115, wherein the receiving module is further configured to receive transmission resource indication information sent by the network side device according to the location information of the UE in the user group. ; The sending module is also configured to transmit data on the transmission resource indicated by the transmission resource indication information. 117. The UE according to claim 116, wherein the wireless network temporary identifier used by the sending module for data transmission on the transmission resource indicated by the transmission resource indication information is public information or the user group The cell radio network temporary identifier C-RNTI is determined according to preset determination rules, and the public information refers to information that is known in advance by all UEs in the user group. 118. The UE according to claim 117, wherein the preset determination rule is based on a combination of the public information and the identity of the UE, or is based on the identity of the user group. The C-RNTI is combined with the identity of the UE. 119. The UE according to claim 110, wherein the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements, and the identification of the user group. 120. The UE according to claim 119, wherein the receiving module is specifically configured to receive the access completion notification message within the set of random access time windows when the network side device receives the The second RAR returned after the sequence code and the transmission requirement indication information, the second RAR includes the starting location information of the UE with transmission requirement, the number of the UE with transmission requirement and the user The group's ID. 121. The UE according to any one of claims 110 to 120, wherein the receiving module is further configured to receive the indication information of the random access resource sent by the network side device. 122. The UE according to any one of claims 110 to 121, wherein the receiving module is further configured to receive indication information of the group of random access time windows sent by the network side device. 123. A user equipment UE, characterized in that it includes: The receiving module is used to receive the access completion notification message sent by the network side device within the group random access time window; Wherein, the access completion notification message is returned by the network side device after receiving the sequence code and transmission requirement indication information sent by the master UE in the user group on the time-frequency resource within the random access time window of the group; The UE is a secondary UE in the user group, the UE and the primary UE use the same random access resources, and the UE does not send data to the network side device within the random access time window of the group. Send the sequence code and the transmission requirement indication information, where the random access resources include the sequence code and the time-frequency resource; The access completion module is configured to, when the receiving module successfully receives the access completion notification message within the set of random access time windows, determine to complete the random access process according to the access completion notification message. 124. The UE according to claim 123, wherein the transmission requirement indication information includes the number of UEs in the user group and the identifier of the user group. 125. The UE according to claim 124, characterized in that, the receiving module is specifically configured to receive, within the group of random access time windows, when the UE has no transmission requirement. The first random access response returned after the sequence code and the transmission requirement indication information Should be a RAR, the -th RAR is the access completion notification message, and the -th RAR includes location indication information of the transmission request resource. 126. The UE according to claim 124, characterized in that, the receiving module is specifically configured to receive, when the UE has a transmission need, the network side device receives a message within the group random access time window. The first RAR returned after the sequence code and the transmission requirement indication information, the first RAR including the location indication information of the transmission request resource; The first RAR is the access completion notification message; The UE also includes: A sending module, configured to send a message to the corresponding location of the transmission request resource within the group random access time window according to the location information of the UE in the user group and the location indication information of the transmission request resource. The network side device sends a transmission request message. 127. The UE according to claim 124, characterized in that, the receiving module is specifically configured to receive, when the UE has transmission needs, the network side device receives a message within the group random access time window. The first RAR returned after the sequence code and the transmission requirement indication information, the first RAR including the location indication information of the transmission request resource, and receiving the transmission from the network side device within the set of random access time windows. The transmission request response message; The transmission request response message is the access completion notification message; The UE also includes: A sending module, configured to send a message to the corresponding location of the transmission request resource within the group random access time window according to the location information of the UE in the user group and the location indication information of the transmission request resource. The network side device sends a transmission request message. 128. The UE according to claim 127, wherein the transmission request response message includes information about the UE with transmission requirements. 129. The UE according to claim 127 or 128, wherein the receiving module is further configured to receive transmission resource indication information sent by the network side device according to the location information of the UE in the user group. ; The sending module is also configured to transmit data on the transmission resource indicated by the transmission resource indication information. 130. The UE according to claim 129, wherein the sending module uses a wireless network temporary label for data transmission on the transmission resource indicated by the transmission resource indication information. The identification is public information, or the cell radio network temporary identity C-RNTI of the user group, or is determined according to preset determination rules. The public information refers to information that all UEs in the user group know in advance. 131. The UE according to claim 130, wherein the preset determination rule is based on a combination of the public information and the identity of the primary UE, or is based on the identity of the user group. The C-RNTI is combined with the identity of the primary UE. 132. The UE according to claim 123, wherein the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements, and the identity of the user group network side device . 133. The UE according to claim 132, wherein the receiving module is specifically configured to receive the access completion notification message within the group random access time window when the network side device receives the The second RAR returned after the sequence code and the transmission requirement indication information; the second RAR includes the starting location information of the UE with transmission requirement, the number of the UE with transmission requirement and the number of the user group logo. 134. The UE according to any one of claims 123-133, wherein the receiving module is further configured to receive the indication information of the random access resource sent by the network side device. 135. The UE according to any one of claims 123 to 134, wherein the receiving module is further configured to receive indication information of the group of random access time windows sent by the network side device. 136. A network side device, characterized by including: A receiving module, configured to receive the sequence code and transmission requirement indication information sent by the primary user equipment UE in the user group within the group random access time window; wherein, the primary UE and the secondary UE in the user group use the same Random access resources, and the auxiliary UE does not send the sequence code and the transmission requirement indication information to the network side device within the group of random access time windows, the random access resources include the sequence code and time-frequency resources; Determining module, configured to obtain information about UEs with transmission requirements in the user group according to the transmission requirement indication information; The sending module is configured to return an access completion notification message after the receiving module receives the sequence code and the transmission requirement indication information, so as to notify the UE in the user group to complete the random access process. 137. The network side device according to claim 136, characterized in that: the transmission requirement The indication information includes the number of UEs in the user group and the identity of the user group. 138. The network side device according to claim 137, wherein the determining module is specifically configured to obtain the transmission request message received by the receiving module based on the transmission request message sent by the UE with transmission needs on the transmission request resource. Information about the UE with transmission requirements; The sending module is specifically configured to return the first RAR after the receiving module receives the sequence code and the transmission requirement indication information, where the first RAR includes the location indication information of the transmission request resource; The first RAR is the access completion notification message; The receiving module is also configured to receive the transmission request message sent by the UE with transmission requirements on the transmission request resource. 139. The network side device according to claim 137, wherein the determining module is specifically configured to obtain the transmission request message received by the receiving module based on the transmission request message sent by the UE with transmission needs on the transmission request resource. Information about the UE with transmission requirements; The sending module is specifically configured to return the first RAR after the receiving module receives the sequence code and the transmission requirement indication information, where the first RAR includes the location indication information of the transmission request resource; and After the receiving module receives the transmission request message, it sends a transmission request response message to notify the UE with transmission needs to complete the random access process, where the transmission request response message is the access completion notification message; The receiving module is also configured to receive the transmission request message sent by the UE with transmission requirements on the transmission request resource. 140. The network side device according to claim 139, characterized in that the transmission request response message includes information about the UE with transmission requirements. 141. The network side device according to claim 136, characterized in that the transmission requirement indication information includes starting location information of UEs with transmission requirements, the number of UEs with transmission requirements and the identification of the user group. 142. The network side device according to claim 141, wherein the determining module is specifically configured to determine based on the starting location information of the UE with transmission requirements, the number of UEs with transmission requirements and the The identifier of the user group, and obtain the information of the UEs in the user group that have transmission requirements; The sending module is specifically configured to return the second RAR after the receiving module receives the sequence code and the transmission requirement indication information, to notify the UEs in the user group to complete the random access process; the second RAR includes the starting location information of the UE with transmission requirements, the The number of required UEs and the identity of the user group; the second RAR is the access completion notification message. 143. The network side device according to any one of claims 136 to 142, characterized in that the sending module is further configured to send the indication information of the random access resource to the UE in the user group. 144. The network side device according to any one of claims 136 to 143, characterized in that the sending module is further configured to send indication information of the group random access time window to the UEs in the user group. . 145. A user equipment UE, characterized in that it includes: A transmitter configured to send a layer 2/layer 3 message to a network side device within a group random access time window, where the layer 2/layer 3 message includes transmission requirement indication information, and the transmission requirement indication information is used to enable the network The side device learns the information of the UE in the user group that has transmission requirements; wherein the UE is the primary UE in the user group, the UE and the secondary UE in the user group use the same random access resources, and The auxiliary UE does not send a sequence code to the network side device within the group of random access time windows, and the random access resources include the sequence code and time-frequency resources; The receiver is configured to receive an access completion notification message returned by the network side device after receiving the layer 2/layer 3 message within the group of random access time windows, so as to complete the random access process. 146. A user equipment UE, characterized in that it includes: A receiver, configured to receive a random access response RAR sent by the network side device within the group random access time window, and receive an access completion notification message sent by the network side device within the group random access time window; Wherein, the RAR is returned by the network side device after receiving the sequence code sent by the primary UE in the user group on the time-frequency resource within the random access time window of the group; the UE is the user group The secondary UE in, the UE and the primary UE use the same random access resource, and the UE does not send the sequence code to the network side device within the group of random access time windows, and the Random access resources include the sequence code and the time-frequency resource; A processor configured to obtain a temporary cell radio network temporary identifier TC-RNTI from the RAR when the receiver successfully receives the RAR within the set of random access time windows, and when the receiver When the access completion notification message is successfully received within the random access time window of the group, the TC-RNTI of the user group is used as the cell radio network temporary identifier C-RNTI of the user group to complete the random access. entry process; wherein, the access completion notification message is the network side The device returns after receiving the Layer 2/Layer 3 message sent by the primary UE within the group random access time window. The Layer 2/Layer 3 message includes transmission requirement indication information. The transmission requirement indication information is To enable the network side device to learn information about UEs in the user group that have transmission requirements. 147. A network side device, characterized by including: A receiver configured to receive a Layer 2/Layer 3 message sent by the primary user equipment UE in the user group within the group random access time window, where the Layer 2/Layer 3 message includes transmission requirement indication information; wherein, the primary The UE and the secondary UE in the user group use the same random access resource, and the secondary UE does not send a sequence code to the network side device within the random access time window of the group, and the random access resource Including the sequence code and time-frequency resources; A processor, configured to obtain, according to the transmission requirement indication information, information about UEs with transmission requirements in the user group; The sender is configured to return an access completion notification message after the receiver receives the layer 2/layer 3 message, so as to notify the UE in the user group to complete the random access process. 148. A user equipment UE, characterized in that it includes: A transmitter configured to send sequence codes and transmission requirement indication information to the network side device within the group random access time window. The transmission requirement indication information is used to enable the network side device to learn information about UEs in the user group that have transmission requirements. ; Wherein, the UE is the primary UE in the user group, the UE and the secondary UE in the user group use the same random access resources, and the secondary UE is in the group random access time window. The sequence code and the transmission requirement indication information are not sent to the network side device, and the random access resources include the sequence code and time-frequency resources; A receiver configured to receive an access completion notification message returned by the network side device after receiving the sequence code and the transmission requirement indication information within the group of random access time windows, to complete the random access process. 149. A user equipment UE, characterized in that it includes: The receiver is used to receive the access completion notification message sent by the network side device within the group random access time window; Wherein, the access completion notification message is returned by the network side device after receiving the sequence code and transmission requirement indication information sent by the master UE in the user group on the time-frequency resource within the random access time window of the group; The UE is a secondary UE in the user group, the UE and the primary UE use the same random access resources, and the UE does not send data to the network within the random access time window of the group. The side device sends the sequence code and the transmission requirement indication information, and the random access resource includes the sequence code and the time-frequency resource; The processor is configured to, when the receiver successfully receives the access completion notification message within the set of random access time windows, determine to complete the random access process according to the access completion notification message. 150. A network side device, characterized by including: A receiver configured to receive the sequence code and transmission requirement indication information sent by the primary user equipment UE in the user group within the group random access time window; wherein, the primary UE and the secondary UE in the user group use the same Random access resources, and the auxiliary UE does not send the sequence code and the transmission requirement indication information to the network side device within the group of random access time windows, the random access resources include the sequence code and time-frequency resources; A processor, configured to obtain, according to the transmission requirement indication information, information about UEs with transmission requirements in the user group; The sender is configured to return an access completion notification message after the receiver receives the sequence code and the transmission requirement indication information, so as to notify the UEs in the user group to complete the random access process.