CN106656418A - Method and device for transmitting radio resource control message - Google Patents

Abstract

The present invention discloses a radio resource control message transmission method and device, comprising: a first terminal receives a radio resource control RRC message transmitted by a first signaling radio bearer (SRB) sent by a second terminal, and the first signaling radio bearer SRB is The radio bearer of the communication interface between the first terminal and the second terminal; look up the second data radio bearer SRB corresponding to the first signaling radio bearer SRB from the pre-configured resource mapping table, and the second data radio bearer SRB is the first A radio bearer of the communication interface between the terminal and the base station; sending a radio resource control RRC message transmitted through the found second data radio bearer SRB to the base station. The embodiment of the present invention supports the establishment of an RRC connection between the R-UE and the eNB without affecting the RRC control signaling resources of the U2NR itself and the network side, thereby improving the flexibility and efficiency of service processing.

Description

A radio resource control message transmission method and device

technical field

The present invention relates to the field of communication technology, in particular to a method and device for transmitting a radio resource control message.

Background technique

D2D (Device to Device, device to device) refers to a communication technology that can directly communicate between user terminals (UE, User Equipment) without transmission or forwarding by equipment such as a base station. D2D can be deployed within cellular network coverage and/or outside of network coverage. UE-NW relay is a feature introduced in D2D communication. It has the advantages of flexible deployment and can expand network coverage without adding existing network equipment. It is used in commercial communication, public safety communication (such as earthquakes, wars), etc. important applications in the field.

As shown in FIG. 1 , FIG. 1 provides a schematic structural diagram of a further enhanced D2D connection system. The remote UE can access the enhanced UE-to-NW relay through LTE (Long Term Evolution, long-term evolution) RAT (Radio Access Technologies, Radio Access Technologies) or other RATs (such as: Bluetooth, WiFi), and then communicate with The network side establishes a control plane and a user plane connection. As shown in Figure 2, Figure 2 provides a network architecture in which the remote UE is connected to the eNB and the MME. However, the prior art solution does not provide the problem of establishing a signaling bearer between the base station and the remote UE, resulting in The method is inflexible and the processing efficiency is low.

Contents of the invention

Embodiments of the present invention provide a radio resource control message transmission method and device. The technical problem of inflexibility and low efficiency in the business processing mode in the prior technical solution can be solved.

The first aspect of the present invention provides a radio resource control message transmission method, including:

The first terminal receives the radio resource control RRC message transmitted by the first signaling radio bearer SRB sent by the second terminal, and the first signaling radio bearer SRB is a communication interface between the first terminal and the second terminal wireless bearer;

The first terminal searches a pre-configured resource mapping table for a second data radio bearer SRB corresponding to the first signaling radio bearer SRB, and the second data radio bearer SRB is between the first terminal and the base station The radio bearer of the communication interface between;

The first terminal sends the radio resource control RRC message transmitted through the found second data radio bearer SRB to the base station.

Wherein, the resource mapping table includes a one-to-one mapping relationship between the radio link control RLC entities corresponding to the plurality of first SRBs and the plurality of second SRBs.

Wherein, the first terminal sending the radio resource control RRC message transmitted through the found second data radio bearer SRB to the base station includes:

Adding identification information to the RLC packet header bearing the radio resource control RRC message at the radio link control layer RLC;

sending the radio resource control RRC message carrying the identification information to the base station, where the identification information is used by the base station to distinguish the radio resource control RRC messages from different second terminals.

Wherein, the identification information includes the terminal identification of the second terminal allocated by the base station, or the terminal identification of the first terminal and the terminal identification of the second terminal allocated by the first terminal.

Wherein, the first terminal sending the radio resource control RRC message transmitted through the found second data radio bearer SRB to the base station includes:

Adding a specific bit in the RLC packet header used by the radio resource control RRC message, the specific bit is used by the base station to distinguish that the radio resource control RRC message is from the first terminal or the second terminal.

Wherein, before the first terminal receives the radio resource control RRC message transmitted by the first signaling radio bearer (SRB) sent by the second terminal, it further includes:

Establish the second data radio bearer SRB with the base station.

Wherein, before the first terminal receives the radio resource control RRC message transmitted by the first signaling radio bearer (SRB) sent by the second terminal, it further includes:

Receive the resource mapping table sent by the base station.

Correspondingly, the second aspect of the present invention provides an apparatus for transmitting radio resource control messages, including:

An information receiving module, configured to receive a radio resource control RRC message transmitted by a first signaling radio bearer (SRB) sent by a second terminal, where the first signaling radio bearer (SRB) is between the first terminal and the second terminal The wireless bearer of the communication interface between;

An information processing module, configured to search a pre-configured resource mapping table for a second data radio bearer SRB corresponding to the first signaling radio bearer SRB, where the second data radio bearer SRB is the first terminal and the base station The radio bearer of the communication interface between;

An information sending module, configured to send the radio resource control RRC message transmitted through the found second data radio bearer SRB to the base station.

Wherein, the resource mapping table includes a one-to-one mapping relationship between the radio link control RLC entities corresponding to the plurality of first SRBs and the plurality of second SRBs.

Wherein, the information sending module is specifically used for:

Adding identification information to the RLC packet header bearing the radio resource control RRC message at the radio link control layer RLC;

sending the radio resource control RRC message carrying the identification information to the base station, where the identification information is used by the base station to distinguish the radio resource control RRC messages from different second terminals.

Wherein, the identification information includes the terminal identification of the second terminal allocated by the base station, or the terminal identification of the first terminal and the terminal identification of the second terminal allocated by the first terminal.

Wherein, the information sending module is further configured to add a specific bit in the RLC packet header used by the radio resource control RRC message, and the specific bit is used by the base station to distinguish the radio resource control RRC message from the the first terminal or the second terminal.

Wherein, the information processing module is further configured to establish the second data radio bearer SRB with the base station.

Wherein, the information receiving module is further configured to receive the resource mapping table sent by the base station.

Correspondingly, the third aspect of the present invention provides a radio resource control message transmission device, the device includes an interface circuit, a memory, and a processor, wherein a set of program codes are stored in the memory, and the processor is used to call the program code stored in the memory Program code to do the following:

receiving a radio resource control RRC message transmitted by a first signaling radio bearer (SRB) sent by the second terminal, where the first signaling radio bearer (SRB) is a radio bearer of the communication interface between the first terminal and the second terminal ;

Find a second data radio bearer SRB corresponding to the first signaling radio bearer SRB from a pre-configured resource mapping table, where the second data radio bearer SRB is a communication interface between the first terminal and the base station wireless bearer;

Sending the radio resource control RRC message transmitted through the found second data radio bearer SRB to the base station.

To implement the embodiment of the present invention, the first terminal first receives the radio resource control RRC message transmitted by the first signaling radio bearer SRB sent by the second terminal; The corresponding second data radio bearer SRB; finally, send the radio resource control RRC message transmitted by the found second data radio bearer SRB to the base station, so as to support the establishment of RRC connection between R-UE and eNB without affecting U2NR itself The signaling resource is controlled by the RRC on the network side, which improves the flexibility and efficiency of service processing.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a further enhanced D2D connection system provided by the prior art solution;

FIG. 2 is a schematic diagram of a network architecture in which a remote UE is connected to an eNB and an MME provided by a prior art solution;

FIG. 3 is a schematic flowchart of a method for transmitting a radio resource control message according to the first embodiment of the present invention;

FIG. 4 is a schematic flowchart of a method for transmitting a radio resource control message according to a second embodiment of the present invention;

FIG. 5 is a schematic structural diagram of an apparatus for transmitting a radio resource control message according to an embodiment of the present invention;

Fig. 6 is a schematic structural diagram of another apparatus for transmitting a radio resource control message provided by an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Please refer to FIG. 3 . FIG. 3 is a schematic flowchart of a method for transmitting a radio resource control message according to the first embodiment of the present invention. As shown in Figure 3, the method in the embodiment of the present invention includes:

S301. The first terminal receives a radio resource control RRC message transmitted by a first signaling radio bearer (SRB) sent by a second terminal, where the first signaling radio bearer (SRB) is between the first terminal and the second terminal The radio bearer of the communication interface. Wherein, the first terminal may be a relay UE, and the second terminal may be a remote UE.

In a specific implementation, since the second terminal is not within the coverage of the base station, the second terminal needs to establish an RRC connection with the eNB, firstly search for the first terminal that can provide the relay service, and if found, encapsulate the radio resource control RRC message into the eNB The radio bearer is placed in the SRB, and then the radio resource control RRC message is transmitted to the first terminal through the signaling radio bearer SRB.

Optionally, before the first terminal receives the radio resource control RRC message transmitted by the first signaling radio bearer SRB sent by the second terminal, the first terminal establishes the second data radio bearer SRB with the base station. For example, SRB0, SRB1, and SRB2 can be established between U2NR and eNB. If U2NR and eNB only establish SRB0, according to the security requirements and resource usage characteristics of different SRBs, RRC messages can only be transmitted to eNB through SRB0.

S302. The first terminal searches a pre-configured resource mapping table for a second data radio bearer SRB corresponding to the first signaling radio bearer SRB, where the second data radio bearer SRB is the first terminal and the SRB Radio bearer for the communication interface between base stations.

In a specific implementation, the resource mapping table includes a one-to-one mapping relationship between the radio link control RLC entities corresponding to the plurality of first SRBs and the plurality of second SRBs. For example, after SRB0, SRB1, and SRB2 can be established between U2NR and eNB, the RRC of the remote UE also needs 3 SRBs (SRB0, SRB1, and SRB2), thereby reducing the impact on the RRC protocol of the remote UE, and establishing A one-to-one mapping relationship with the second signaling radio bearer SRB (SRB0, SRB1 and SRB2). Among them, the RLC entity corresponding to SRB0 of the port PC5 (the interface between the remote UE and the relay UE) corresponds to the SRB0 of the port Uu (the interface between the relay UE and the base station); the RLC entity corresponding to the SRB1 of the PC5 port corresponds to The SRB1 of the Uu interface corresponds; the RLC entity corresponding to the SRB2 of the PC5 interface corresponds to the SRB2 of the Uu interface. After the one-to-one correspondence is established, if the relay UE receives the RRC message of the remote UE transmitted through SRB0, the relay UE selects SRB0 and transmits the RRC message to the base station through SRB0.

It should be noted that different SRBs have different security requirements and resource quantities. For example, SRB0 is transmitted on CCCH (Common Control Channel, Common Control Channel), SRB1 and SRB2 are transmitted on DCCH (Dedicated Control Channel, Dedicated Control Channel), and SRB0, SRB1 and SRB2 have respective priorities, so it is necessary to ensure the one-to-one mapping relationship between the RLC entity corresponding to the first SRB and the multiple second SRBs.

S303. The first terminal sends the radio resource control RRC message transmitted through the found second data radio bearer SRB to the base station.

In a specific implementation, a specific bit may be added to the RLC packet header used by the radio resource control RRC message, and the specific bit is used by the base station to distinguish that the radio resource control RRC message is from the first terminal or the second terminal. For example, the SRB0, SRB1 and SRB2 signaling of the remote UE is transmitted on the SRB0, SRB1 and SRB2 resources of the Uu interface. The eNB needs to distinguish the control signaling from the remote UE from the data from the U2NR, so the relay UE can R bits are added to the header of the RLC packet used in the RRC message, so that when the eNB receives the RRC message, it can distinguish whether the message is sent by the relay UE or the remote UE.

In the embodiment of the present invention, the first terminal first receives the radio resource control RRC message transmitted by the first signaling radio bearer (SRB) sent by the second terminal; The second data radio bearer SRB corresponding to the SRB; finally, the radio resource control RRC message transmitted through the found second data radio bearer SRB is sent to the base station to support the establishment of an RRC connection between the R-UE and the eNB without affecting U2NR The RRC control signaling resource of itself and the network side improves the flexibility and efficiency of service processing.

Please refer to FIG. 4 , which is a schematic flowchart of a method for transmitting a radio resource control message according to a second embodiment of the present invention. As shown in Figure 4, the method in the embodiment of the present invention includes:

S401. The first terminal receives the resource mapping table sent by the base station.

S402. The first terminal receives a radio resource control RRC message transmitted by a first signaling radio bearer (SRB) sent by the second terminal, where the first signaling radio bearer (SRB) is between the first terminal and the second terminal The radio bearer of the communication interface.

In a specific implementation, since the second terminal is not within the coverage of the base station, the second terminal needs to establish an RRC connection with the eNB, firstly search for the first terminal that can provide the relay service, and if found, encapsulate the radio resource control RRC message into the eNB The radio bearer is placed in the SRB, and then the radio resource control RRC message is transmitted to the first terminal through the signaling radio bearer SRB.

S403. The first terminal searches a preconfigured resource mapping table for a second data radio bearer SRB corresponding to the first signaling radio bearer SRB, where the second data radio bearer SRB is between the first terminal and the base station The radio bearer of the communication interface between them.

In a specific implementation, the resource mapping table includes a one-to-one mapping relationship between the radio link control RLC entities corresponding to the plurality of first SRBs and the plurality of second SRBs. For example, after SRB0, SRB1, and SRB2 are established between U2NR and eNB, the RRC of the remote UE also needs 3 SRBs (SRB0, SRB1, and SRB2), thereby reducing the impact on the RRC protocol of the remote UE, and establishing One-to-one mapping relationship with the second signaling radio bearer SRB (SRB0, SRB1 and SRB2). Among them, the RLC entity corresponding to SRB0 of the port PC5 (the interface between the remote UE and the relay UE) corresponds to the SRB0 of the port Uu (the interface between the relay UE and the base station); the RLC entity corresponding to the SRB1 of the PC5 port corresponds to The SRB1 of the Uu interface corresponds; the RLC entity corresponding to the SRB2 of the PC5 interface corresponds to the SRB2 of the Uu interface. After the one-to-one correspondence is established, if the relay UE receives the RRC message of the remote UE through SRBO, the relay UE selects SRBO to transmit the RRC message to the base station.

It should be noted that different SRBs have different security requirements and resource quantities. For example, SRB0 is transmitted on CCCH (Common Control Channel, Common Control Channel), SRB1 and SRB2 are transmitted on DCCH (Dedicated Control Channel, Dedicated Control Channel), and SRB0, SRB1 and SRB2 have respective priorities, so it is necessary to ensure the one-to-one mapping relationship between the RLC entity corresponding to the first SRB and the multiple second SRBs.

In a specific implementation, the resource mapping table includes a one-to-one mapping relationship between the radio link control RLC entities corresponding to the plurality of first SRBs and the plurality of second SRBs. For example, after SRB0, SRB1, and SRB2 can be established between U2NR and eNB, the RRC of the remote UE also needs 3 SRBs (SRB0, SRB1, and SRB2), thereby reducing the impact on the RRC protocol of the remote UE, and establishing One-to-one mapping relationship between SRB0, SRB1 and SRB2 between U2NR and eNB. Among them, the RLC entity corresponding to SRB0 of the port PC5 (the interface between the remote UE and the relay UE) corresponds to the SRB0 of the port Uu (the interface between the relay UE and the base station); the RLC entity corresponding to the SRB1 of the PC5 port corresponds to The SRB1 of the Uu interface corresponds; the RLC entity corresponding to the SRB2 of the PC5 interface corresponds to the SRB2 of the Uu interface. After the one-to-one correspondence is established, if the relay UE receives the RRC message of the remote UE transmitted through SRB0, the relay UE selects SRB0 and transmits the RRC message to the base station through SRB0.

It should be noted that different SRBs have different security requirements and resource quantities. For example, SRB0 is transmitted on CCCH (Common Control Channel, Common Control Channel), SRB1 and SRB2 are transmitted on DCCH (Dedicated Control Channel, Dedicated Control Channel), and SRB0, SRB1 and SRB2 have respective priorities, so it is necessary to ensure the one-to-one mapping relationship between the RLC entity corresponding to the first SRB and the multiple second SRBs.

S404. The first terminal adds identification information to the header of the RLC packet carrying the radio resource control RRC message at the radio link control layer RLC, where the identification information includes the terminal identification of the second terminal assigned by the base station, or the The terminal identifier of the first terminal and the terminal identifier of the second terminal assigned by the first terminal.

In a specific implementation, if the identification information of the remote UE is allocated by the eNB and there is a unique eNB, the relay UE may directly add the identification information of the remote UE to the RLC packet header. Wherein, the identification information can be terminal identification or RBID (resource block identification); if the identification information of the R-UE is allocated by U2NR, the relay UE can add the identification information of the relay UE and the identification information of the remote UE to the RLC at the same time For the packet header, further, the identification information can be selected according to the number of bits and the like. In addition, in order to compress the number of information bits, when transmitting RRC messages on the Uu interface, the number of extra information bits added should be minimized.

S405. The first terminal sends the radio resource control RRC message carrying the identification information to the base station, so that after receiving the radio resource control RRC message, the base station can distinguish which remote end the radio resource control RRC message comes from UE.

In the embodiment of the present invention, the first terminal first receives the radio resource control RRC message transmitted by the first signaling radio bearer (SRB) sent by the second terminal; The second data radio bearer SRB corresponding to the SRB; finally, the radio resource control RRC message transmitted through the found second data radio bearer SRB is sent to the base station to support the establishment of an RRC connection between the R-UE and the eNB without affecting U2NR The RRC control signaling resource of itself and the network side improves the flexibility and efficiency of service processing.

Please refer to FIG. 5 , which is a schematic structural diagram of an apparatus for transmitting a radio resource control message according to an embodiment of the present invention. As shown in Figure 5, the device in the embodiment of the present invention includes:

An information receiving module 501, configured to receive a radio resource control RRC message transmitted by a first signaling radio bearer (SRB) sent by a second terminal, where the first signaling radio bearer (SRB) is the first terminal and the second terminal The radio bearer of the communication interface between them. Wherein, the first terminal may be a relay UE, and the second terminal may be a remote UE.

In a specific implementation, since the second terminal is not within the coverage of the base station, the second terminal needs to establish an RRC connection with the eNB, firstly search for the first terminal that can provide the relay service, and if found, encapsulate the radio resource control RRC message into the eNB The radio bearer is placed in the SRB, and then the radio resource control RRC message is transmitted to the first terminal through the signaling radio bearer SRB.

Optionally, before the first terminal receives the radio resource control RRC message transmitted by the first signaling radio bearer SRB sent by the second terminal, the first terminal establishes the second data radio bearer SRB with the base station. For example, SRB0, SRB1, and SRB2 can be established between U2NR and eNB. If U2NR and eNB only establish SRB0, according to the security requirements and resource usage characteristics of different SRBs, RRC messages can only be transmitted to eNB through SRB0.

An information processing module 502, configured to search a pre-configured resource mapping table for a second data radio bearer SRB corresponding to the first signaling radio bearer SRB, where the second data radio bearer SRB is the first terminal and the Radio bearer for the communication interface between base stations.

In a specific implementation, the resource mapping table includes a one-to-one mapping relationship between the radio link control RLC entities corresponding to the plurality of first SRBs and the plurality of second SRBs. For example, after SRB0, SRB1, and SRB2 are established between U2NR and eNB, the RRC of the remote UE also needs 3 SRBs (SRB0, SRB1, and SRB2), thereby reducing the impact on the RRC protocol of the remote UE, and establishing One-to-one mapping relationship with the second signaling radio bearer SRB (SRB0, SRB1 and SRB2). Among them, the RLC entity corresponding to SRB0 of the port PC5 (the interface between the remote UE and the relay UE) corresponds to the SRB0 of the port Uu (the interface between the relay UE and the base station); the RLC entity corresponding to the SRB1 of the PC5 port corresponds to The SRB1 of the Uu interface corresponds; the RLC entity corresponding to the SRB2 of the PC5 interface corresponds to the SRB2 of the Uu interface. After the one-to-one correspondence is established, if the relay UE receives the RRC message of the remote UE through SRBO, the relay UE selects SRBO to transmit the RRC message to the base station.

It should be noted that different SRBs have different security requirements and the number of resources. For example, SRB0 is transmitted on CCCH (Common Control Channel, Common Control CHannel), SRB1 and SRB2 are transmitted on DCCH (Dedicated Control Channel, Dedicated Control Channel), and SRB0, SRB1 and SRB2 have respective priorities, so it is necessary to ensure the one-to-one mapping relationship between the RLC entity corresponding to the first SRB and the multiple second SRBs.

In a specific implementation, the resource mapping table includes a one-to-one mapping relationship between the radio link control RLC entities corresponding to the plurality of first SRBs and the plurality of second SRBs. For example, after SRB0, SRB1, and SRB2 can be established between U2NR and eNB, the RRC of the remote UE also needs 3 SRBs (SRB0, SRB1, and SRB2), thereby reducing the impact on the RRC protocol of the remote UE, and establishing One-to-one mapping relationship between SRB0, SRB1 and SRB2 between U2NR and eNB. Among them, the RLC entity corresponding to SRB0 of the port PC5 (the interface between the remote UE and the relay UE) corresponds to the SRB0 of the port Uu (the interface between the relay UE and the base station); the RLC entity corresponding to the SRB1 of the PC5 port corresponds to The SRB1 of the Uu interface corresponds; the RLC entity corresponding to the SRB2 of the PC5 interface corresponds to the SRB2 of the Uu interface. After the one-to-one correspondence is established, if the relay UE receives the RRC message of the remote UE transmitted through SRB0, the relay UE selects SRB0 and transmits the RRC message to the base station through SRB0.

It should be noted that different SRBs have different security requirements and the number of resources. For example, SRB0 is transmitted on CCCH (Common Control Channel, Common Control CHannel), SRB1 and SRB2 are transmitted on DCCH (Dedicated Control Channel, Dedicated Control Channel), and SRB0, SRB1 and SRB2 have respective priorities, so it is necessary to ensure the one-to-one mapping relationship between the RLC entity corresponding to the first SRB and the multiple second SRBs.

An information sending module 503, configured to send the radio resource control RRC message transmitted through the found second data radio bearer SRB to the base station.

In a specific implementation, a specific bit may be added to the RLC packet header used by the radio resource control RRC message, and the specific bit is used by the base station to distinguish that the radio resource control RRC message is from the first terminal or the second terminal. For example, the SRB0, SRB1 and SRB2 signaling of the remote UE is transmitted on the SRB0, SRB1 and SRB2 resources of the Uu interface. The eNB needs to distinguish the control signaling from the remote UE from the data from the U2NR, so the relay UE can R bits are added to the header of the RLC packet used in the RRC message, so that when the eNB receives the RRC message, it can distinguish whether the message is sent by the relay UE or the remote UE.

Optionally, identification information may first be added to the RLC packet header carrying the radio resource control RRC message at the radio link control layer RLC, where the identification information includes the terminal identification of the second terminal allocated by the base station, or The terminal identity of the first terminal and the terminal identity of the second terminal allocated by the first terminal; and then sending the radio resource control RRC message carrying the identity information to the base station, so that the base station receives the After the radio resource control RRC message, it can be distinguished which remote UE the radio resource control RRC message comes from.

In a specific implementation, if the identification information of the remote UE is allocated by the eNB and there is a unique eNB, the relay UE may directly add the identification information of the remote UE to the RLC packet header. Wherein, the identification information can be terminal identification or RBID (resource block identification); if the identification information of the R-UE is allocated by U2NR, the relay UE can add the identification information of the relay UE and the identification information of the remote UE to the RLC at the same time For the packet header, further, the identification information can be selected according to the number of bits and the like. In addition, in order to compress the number of information bits, when transmitting RRC messages on the Uu interface, the number of extra information bits added should be minimized.

In the embodiment of the present invention, the first terminal first receives the radio resource control RRC message transmitted by the first signaling radio bearer (SRB) sent by the second terminal; The second data radio bearer SRB corresponding to the SRB; finally, the radio resource control RRC message transmitted through the found second data radio bearer SRB is sent to the base station to support the establishment of an RRC connection between the R-UE and the eNB without affecting U2NR The RRC control signaling resource of itself and the network side improves the flexibility and efficiency of service processing.

Please refer to FIG. 6 , which is a schematic structural diagram of an apparatus for transmitting a radio resource control message according to an embodiment of the present invention. As shown in the figure, the device may include: at least one processor 601 , such as a CPU, at least one communication interface 602 , at least one memory 603 , and at least one bus 604 . Among them, the bus 604 is used to realize connection and communication between these components. Wherein, the communication interface 602 of the device in the embodiment of the present invention is a wired sending port, and may also be a wireless device, such as including an antenna device, for signaling or data communication with other node devices. The memory 603 may be a high-speed RAM memory, or a non-volatile memory, such as at least one disk memory. Optionally, the memory 603 may also be at least one storage device located away from the aforementioned processor 601 . A set of program codes are stored in the memory 603, and the processor 601 is used to call the program codes stored in the memory to perform the following operations:

receiving a radio resource control RRC message transmitted by a first signaling radio bearer (SRB) sent by the second terminal, where the first signaling radio bearer (SRB) is a radio bearer of the communication interface between the first terminal and the second terminal ;

Find a second data radio bearer SRB corresponding to the first signaling radio bearer SRB from a pre-configured resource mapping table, where the second data radio bearer SRB is a communication interface between the first terminal and the base station wireless bearer;

Sending the radio resource control RRC message transmitted through the found second data radio bearer SRB to the base station.

Wherein, the resource mapping table includes a one-to-one mapping relationship between the radio link control RLC entities corresponding to the plurality of first SRBs and the plurality of second SRBs.

Wherein, the processor 601 is also configured to perform the following operation steps:

Adding identification information to the RLC packet header carrying the radio resource control RRC message at the radio link control layer RLC, where the identification information includes a terminal identification and/or an SRB identification;

sending the radio resource control RRC message carrying the identification information to the base station, where the identification information is used by the base station to distinguish the radio resource control RRC messages from different second terminals.

Wherein, the processor 601 is also configured to perform the following operation steps:

Adding a specific bit in the RLC packet header used by the radio resource control RRC message, the specific bit is used by the base station to distinguish that the radio resource control RRC message is from the first terminal or the second terminal.

Wherein, the processor 601 is also configured to perform the following operation steps:

Establish the second data radio bearer SRB with the base station.

Wherein, the processor 601 is also configured to perform the following operation steps:

Receive the resource mapping table sent by the base station.

It should be noted that, for the sake of simple description, all the aforementioned method embodiments are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described action sequence. Because according to the present invention, certain steps can be carried out in other order or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: Flash disk, read-only memory (English: Read-Only Memory, abbreviated: ROM), random access device (English: Random Access Memory, abbreviated: RAM), magnetic disk or optical disk, etc.

The content downloading method provided by the embodiment of the present invention and related equipment and systems have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiment is only used to help understand the present invention. The method of the invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification should not be understood To limit the present invention.

Claims (15)

1. a kind of radio resource control information transmission method, it is characterised in that methods described includes：

First terminal is received the radio resource control RRC transmitted by the first Signaling Radio Bearer SRB of second terminal transmission and is disappeared Breath, the first Signaling Radio Bearer SRB is the radio bearer of communication interface between the first terminal and the second terminal；

The first terminal searches corresponding with the first Signaling Radio Bearer SRB from the resource mapping table being pre-configured with Two Data Radio Bearer SRB, the second Data Radio Bearer SRB are the communication interface between the first terminal and base station Radio bearer；

The first terminal sends the nothing of the second Data Radio Bearer SRB transmission by finding to the base station Line resources control RRC information.

2. the method for claim 1, it is characterised in that the resource mapping table includes that multiple first signalings are wireless Carry the wireless spread-spectrum technology RLC entities corresponding to SRB to close with the mapping one by one of multiple second Signaling Radio Bearer SRB System.

3. the method for claim 1, it is characterised in that the first terminal to the base station is sent by finding The radio resource control RRC message of the second Data Radio Bearer SRB transmission includes：

Identification information is added to the RLC packets headers for carrying the radio resource control RRC message in wireless chain control layer RLC；

The radio resource control RRC message for carrying the identification information is sent to the base station, the identification information is used for Distinguish the radio resource control RRC message from the different second terminals in the base station.

4. method as claimed in claim 3, it is characterised in that the identification information includes described the second of base station distribution The terminal iidentification and the terminal of the second terminal of the terminal iidentification of terminal or the first terminal of first terminal distribution Mark.

5. the method for claim 1, it is characterised in that the first terminal to the base station is sent by finding The radio resource control RRC message of the second Data Radio Bearer SRB transmission includes：

Specific bit, the specific bit is added to be used in the RLC packets headers that the radio resource control RRC message is used The radio resource control RRC message is distinguished from the first terminal or the second terminal in the base station.

6. the method for claim 1, it is characterised in that the first terminal receive that second terminal sends by first Before the radio resource control RRC message of Signaling Radio Bearer SRB transmission, also include：

The second Data Radio Bearer SRB is set up with the base station.

7. the method as described in claim 1-6 any one, it is characterised in that the first terminal receives second terminal and sends By the first Signaling Radio Bearer SRB transmit radio resource control RRC message before, also include：

Receive the resource mapping table that the base station sends.

8. a kind of radio resource control information transmitting device, it is characterised in that described device includes：

Information receiving module, for receiving the Radio Resource transmitted by the first Signaling Radio Bearer SRB of second terminal transmission Control RRC information, the first Signaling Radio Bearer SRB is communication interface between the first terminal and the second terminal Radio bearer；

Message processing module, for searching from the resource mapping table being pre-configured with and first Signaling Radio Bearer SRB pair The the second Data Radio Bearer SRB for answering, the second Data Radio Bearer SRB are the communication between the first terminal and base station The radio bearer of interface；

Information sending module, for sending the second Data Radio Bearer SRB transmission by finding to the base station The radio resource control RRC message.

9. device as claimed in claim 8, it is characterised in that the resource mapping table includes that multiple first signalings are wireless Carry the wireless spread-spectrum technology RLC entities corresponding to SRB to close with the mapping one by one of multiple second Signaling Radio Bearer SRB System.

10. device as claimed in claim 8, it is characterised in that described information sending module specifically for：

Identification information is added to the RLC packets headers for carrying the radio resource control RRC message in wireless chain control layer RLC；

The radio resource control RRC message for carrying the identification information is sent to the base station, the identification information is used for Distinguish the radio resource control RRC message from the different second terminals in the base station.

11. devices as claimed in claim 10, it is characterised in that the identification information includes described the of base station distribution The terminal iidentification and the end of the second terminal of the terminal iidentification of two terminals or the first terminal of first terminal distribution End mark.

12. devices as claimed in claim 8, it is characterised in that

Described information sending module, is additionally operable to add spy in the RLC packets headers that the radio resource control RRC message is used Definite proportion is special, the specific bit be used for the base station distinguish the radio resource control RRC message from the first terminal or The second terminal.

13. devices as claimed in claim 8, it is characterised in that

Described information processing module, is additionally operable to set up the second Data Radio Bearer SRB with the base station.

14. devices as described in claim 8-13 any one, it is characterised in that

Described information receiver module, is additionally operable to receive the resource mapping table that the base station sends.

A kind of 15. radio resource control information transmitting devices, it is characterised in that described device include interface circuit, memorizer with And processor, wherein, batch processing code is stored in memorizer, and processor is used to call the program generation stored in memorizer Code, for performing following operation：

Receive the radio resource control RRC message transmitted by the first Signaling Radio Bearer SRB that second terminal sends, described the One Signaling Radio Bearer SRB is the radio bearer of communication interface between the first terminal and the second terminal；

Search the second data corresponding with the first Signaling Radio Bearer SRB from the resource mapping table being pre-configured with wirelessly to hold SRB is carried, the second Data Radio Bearer SRB is the radio bearer of the communication interface between the first terminal and base station；

The wireless heterogeneous networks of the second Data Radio Bearer SRB transmission by finding are sent to the base station RRC information.