WO2016192102A1 - Group communication method, apparatus and device - Google Patents

Abstract

Disclosed are a group communication method, apparatus and device. The method comprises: an application server establishing a group for device-to-device (D2D) communication, and determining a group identifier corresponding to the group; obtaining a group communication parameter corresponding to the group identifier; and sending the group communication parameter to a user equipment (UE) in a group corresponding to the group identifier for solving the problem that a static group establishment method cannot satisfy dynamic group communication if the UE needs to perform group communication temporarily.

Description

Group communication method, device and device Technical field

The present invention relates to the field of communications technologies, and in particular, to a group communication method, apparatus, and device.

Background technique

An important scenario of the Emergency Critical Push to Talk (MCPTT) service defined by the 3rd Generation Partnership Project (English: 3rd Generation Partnership Project, 3GPP) is group communication. , that is, a member within a group communicates with multiple members within the group.

Among them, the implementation of group communication mainly has the following two ways:

The first way: group communication is realized through the network.

This method is also a network mode operation (English: Network Mode Operation, abbreviation: NMO) defined in 3GPP. In this mode, the user equipment (English: user equipment, abbreviation: UE) communicates with other UEs through the base station, the core network, and the server.

The second way: direct communication between UEs.

This method is also a direct mode operation (English: Direct Mode Operation, abbreviated DMO) defined in 3GPP. In this manner, the UE communicates through the 3GPP defined device to device (English: Device to Device, abbreviated D2D) technology.

In the above two modes, the direct communication between UEs is widely used in group communication services because it is not affected by the bandwidth and delay of the network. As shown in FIG. 1 , the D2D system architecture includes a proximity service function entity (English: ProSe Function) and an application server (English: Application Server) that support D2D communication. The application server can be MCPTT Server. According to the provisions of the 3GPP, when the UE performs group communication under the D2D system, the communication group is generally established in a static manner, and the communication parameters are configured for the established group. The UE performs group communication according to a static allocation manner. The parameters required for statically configured group communication include, for example, a layer 2 group identifier (English: ProSe Layer-2 Group ID) and an IP multicast address (English: ProSe Group IP multicast address). IP address type (English: IP4/IPv6), security parameters (English: security parameters).

However, the group establishes a group in a static configuration manner and implements group communication through the established group. If the UE needs to perform group communication temporarily, the method cannot satisfy the dynamic group communication.

Summary of the invention

The present invention provides a group communication method, device and device for solving the problem that the static group establishment mode cannot satisfy the dynamic group communication if the UE needs to perform group communication temporarily.

The first aspect provides a group communication method, including: an application server establishes a group for device-to-device D2D communication; and determines a group identifier corresponding to the group; and obtains a group communication parameter corresponding to the group identifier; The user equipment UE in the group corresponding to the group identifier sends the group communication parameter.

With reference to the first aspect, in a first possible implementation manner of the first aspect, before establishing the group for D2D communication, the method further includes: receiving a dynamic grouping request sent by the UE, where the dynamic grouping request is used for Request to dynamically establish a communication group.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the group communication parameter corresponding to the group identifier is obtained, including: allocating with the group Identifying the corresponding group communication parameter; or sending a dynamic group communication request including the group identifier to the neighboring service function entity, and obtaining the group communication parameter corresponding to the group identifier in the received dynamic group communication response message.

With reference to the first aspect to the second possible implementation of the first aspect, in a third possible implementation manner of the first aspect, the sending, by the UE, the group communication parameter includes: identifying the group All UEs in the corresponding group send the group communication parameters.

With reference to the first aspect to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the user equipment UE in the group corresponding to the group identifier is sent by After the group communication parameter is further included, the application server terminates the group communication; and sends a notification message for terminating the group communication to the UE in the group corresponding to the group identifier.

In conjunction with the first aspect or the fourth possible implementation of the first aspect, in a fifth possible implementation manner of the first aspect, before the application server terminates the group communication, the method further includes: The application server receives the group communication termination request sent by the UE.

With the first aspect or the fifth possible implementation of the first aspect, in a sixth possible implementation manner of the first aspect, after the application server receives the group communication termination request sent by the UE, the method further includes: Transmitting a termination group communication request including a group identity to the neighboring service function entity; and terminating the group communication corresponding to the group identity when receiving the terminating group communication response sent by the neighboring service function entity.

In a second aspect, a group communication method is provided, comprising: a user equipment UE obtaining a group communication parameter, wherein the group communication parameter is a parameter used to dynamically establish a group for device-to-device D2D communication; Parameter configuration and group communication.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the acquiring, by the UE, the group communication parameter includes: sending, by the UE, a dynamic grouping request to an application server, where the dynamic grouping request is used to request dynamic Establishing a communication group; receiving a dynamic group establishment response message sent by the application server; and obtaining a group communication parameter in the received dynamic group establishment response message.

With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the UE obtains the group communication parameter, that the UE obtains the group identifier, and the group identifier Is an identifier corresponding to the group for dynamically establishing group communication in the D2D; the UE sends a dynamic group communication request including the group identifier to the neighboring service function entity; and receives a dynamic group communication response sent by the neighboring service function entity; Obtaining a group communication parameter corresponding to the group identifier in a dynamic group communication response sent by the received neighboring service function entity.

With reference to the second aspect to the second possible implementation of the second aspect, in a third possible implementation manner of the second aspect, after the group communication is configured and performed according to the group communication parameter, the method further includes: Receiving a notification message sent by the application server, the notification message is used to terminate the group communication; ending the group communication according to the notification message, and releasing the group communication parameter.

In conjunction with the second aspect, the third possible implementation of the second aspect, in the fourth possible implementation manner of the second aspect, before receiving the notification message sent by the application server, the method further includes: sending the group communication termination request.

In a third aspect, a group communication method is provided, including: a neighboring service function entity is received Obtaining a group identifier in a dynamic group request sent by the user equipment UE, where the group identifier is an identifier corresponding to a group for dynamically establishing group communication in D2D; determining a group communication parameter corresponding to the group identifier, where the group communication The parameters are parameters used dynamically to establish a group for device-to-device D2D communication; the group communication parameters are sent to the UE.

With reference to the third aspect, in a first possible implementation manner of the third aspect, after the sending the group communication parameter to the UE, the method further includes: receiving, by the application server, a group communication termination request that includes the group identifier; When the group communication corresponding to the group identifier is terminated, a group communication termination response is sent to the neighboring service function entity.

A fourth aspect provides a group communication apparatus, including: an establishing module, configured to establish a group for device-to-device D2D communication, and transmit the group identifier to a determining module; and a determining module, configured to determine Establishing a group identifier corresponding to the group established by the module; obtaining a module, configured to obtain a group communication parameter corresponding to the group identifier determined by the determining module; and a sending module, configured to be used in the group corresponding to the group identifier determined by the determining module The user equipment UE transmits the group communication parameters.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the method further includes: a receiving module, configured to receive a dynamic grouping request sent by the UE, where the dynamic grouping request is used to request to dynamically establish a communication group .

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in the second possible implementation manner of the fourth aspect, the obtaining module is specifically configured to allocate a group communication corresponding to the group identifier And sending a dynamic group communication request including the group identifier to the neighboring service function entity, and obtaining the group communication parameter corresponding to the group identifier in the received dynamic group communication response message.

With reference to the fourth aspect, the second possible implementation manner of the fourth aspect, in the third possible implementation manner of the fourth aspect, the sending module is specifically configured to identify the corresponding group to the group All of the UEs in the group send the group communication parameters.

With reference to the third aspect to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the establishing module is further configured to terminate group communication; And sending a notification message for terminating the group communication to the UE in the group corresponding to the group identifier.

With reference to the fourth aspect, or the fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the sending module is further configured to receive a group communication termination request sent by the UE .

With reference to the fourth aspect, or any one of the fifth possible implementation manners of the fourth aspect, in the sixth possible implementation manner of the fourth aspect, the sending module is further configured to send the group to the neighboring service function entity The identified termination group communication request; the establishing module is further configured to terminate the group communication corresponding to the group identifier when receiving the termination group communication response sent by the neighboring service function entity.

In a fifth aspect, a group communication apparatus is provided, comprising: an obtaining module, configured to obtain a group communication parameter, and transmit the obtained group communication parameter to an execution module, wherein the group communication parameter is dynamically established for device-to-device D2D The parameter used by the group of communication; the execution module is configured to perform group communication according to the group communication parameter transmitted by the obtaining module.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the method further includes: a sending module, configured to send a dynamic grouping request to an application server, where the dynamic grouping request is used to request to dynamically establish a communication group a receiving module, configured to receive a dynamic grouping response message sent by the application server, where the obtaining module is configured to obtain a group communication parameter in the received dynamic grouping response message.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, in the second possible implementation manner of the fifth aspect, the obtaining module is specifically configured to obtain a group identifier, where the group identifier is used to obtain An identifier corresponding to the group that dynamically establishes the group communication in the D2D; the sending module is further configured to send a dynamic group communication request that includes the group identifier to the neighboring service function entity; the receiving module is further configured to receive the proximity service The dynamic group communication response sent by the function entity; the obtaining module is configured to obtain a group communication parameter corresponding to the group identifier in the dynamic group communication response sent by the received neighboring service function entity.

With reference to the second aspect to the second possible implementation of the fifth aspect, in a third possible implementation manner of the fifth aspect, the receiving module is further configured to receive a notification message sent by the application server, where The notification message is used to terminate the group communication; the execution module is further configured to end the group communication according to the notification message, and release the group communication parameter.

With reference to any of the fifth aspect to the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the sending module is further configured to send a group communication termination request.

In a sixth aspect, a group communication apparatus is provided, including: an obtaining module, configured to obtain a group identifier in a dynamic group request sent by a user equipment UE, and transmit the group identifier to a determining module, where the group The identifier is an identifier corresponding to the group for dynamically establishing group communication in the D2D; the determining module is configured to determine a group communication parameter corresponding to the group identifier obtained by the obtaining module, where the group communication parameter is dynamically established for the device to The parameter used by the group of devices D2D communication; the sending module, configured to send the group communication parameter determined by the determining module to the UE.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the method further includes: a receiving module, configured to receive a group communication termination request that is sent by the application server and includes a group identifier, where the sending module is further configured to When the group communication corresponding to the group identifier is terminated, a group communication termination response is sent to the neighboring service function entity.

In a seventh aspect, a group communication device is provided, comprising: a memory for storing program instructions; and a signal processor configured to: perform a group for device-to-device D2D communication according to program instructions stored in the memory Determining a group identifier corresponding to the group; obtaining a group communication parameter corresponding to the group identifier; and an interface, configured to send the group communication parameter to the user equipment UE in the group corresponding to the group identifier.

In conjunction with the seventh aspect, in a first possible implementation manner of the seventh aspect, the interface is further configured to receive a dynamic grouping request sent by the UE, where the dynamic grouping request is used to request to dynamically establish a communication group.

With reference to the seventh aspect, or the first possible implementation manner of the seventh aspect, in a second possible implementation manner of the seventh aspect, the signal processor is specifically configured to allocate a group corresponding to the group identifier The communication parameter is sent to the neighboring service function entity, and the group communication parameter corresponding to the group identifier is obtained in the received dynamic group communication response message.

With reference to any one of the possible implementation manners of the seventh aspect to the seventh aspect, in the third possible implementation manner of the seventh aspect, the interface is specifically used to identify the group corresponding to the group All UEs transmit the group communication parameters.

With reference to the third aspect, the third possible implementation manner of the seventh aspect, in the fourth possible implementation manner of the seventh aspect, the signal processor is further configured to terminate group communication; And is further configured to send a notification message for terminating the group communication to the UE in the group corresponding to the group identifier.

With reference to the seventh aspect, or the fourth possible implementation manner of the seventh aspect, in a fifth possible implementation manner of the seventh aspect, the interface is further configured to receive a group communication termination request sent by the UE.

With reference to the seventh aspect, or the fifth possible implementation manner of the seventh aspect, in the sixth possible implementation manner of the seventh aspect, the interface is further configured to send the group identifier to the neighboring service function entity Terminating the group communication request; the signal processor is further configured to terminate the group communication corresponding to the group identifier when receiving the termination group communication response sent by the neighboring service function entity.

In an eighth aspect, a group communication device is provided, comprising: a memory for storing program instructions; and a signal processor, configured to: obtain, according to program instructions obtained in the memory, a group communication parameter, wherein the group communication parameter is Dynamically establishing parameters used by groups of device-to-device D2D communications; configuring and conducting group communications in accordance with the set of communication parameters.

With reference to the eighth aspect, in a first possible implementation of the eighth aspect, the method further includes: an interface, configured to send a dynamic grouping request to the application server, where the dynamic grouping request is used to request to dynamically establish a communication group; Receiving a dynamic grouping response message sent by the application server; the signal processor is specifically configured to obtain a group communication parameter in the received dynamic grouping response message.

With reference to the eighth aspect, or the first possible implementation manner of the eighth aspect, in the second possible implementation manner of the eighth aspect, the signal processor is specifically configured to obtain a group identifier, where the group identifier is used An identifier corresponding to the group that dynamically establishes the group communication in the D2D; the interface is further configured to send a dynamic group communication request including the group identifier to the neighboring service function entity; and receive the dynamic group communication response sent by the neighboring service function entity The signal processor is specifically configured to obtain a group communication parameter corresponding to the group identifier in a dynamic group communication response sent by the received neighboring service function entity.

With reference to any one of the second aspect to the second possible implementation of the eighth aspect, in a third possible implementation of the eighth aspect, the interface is further configured to receive a notification message sent by an application server, a notification message is used to terminate group communication; the signal processor is further configured to follow the notification The message ends the group communication and releases the group communication parameters.

With reference to any of the third to eighth possible implementations of the eighth aspect, in a fourth possible implementation of the eighth aspect, the interface is further configured to send a group communication termination request.

A ninth aspect provides a group communication device, comprising: a memory for storing program instructions; and a signal processor, configured to perform, according to the program instructions obtained in the memory, a dynamic group request sent by the user equipment UE received Obtaining a group identifier, where the group identifier is an identifier corresponding to a group for dynamically establishing group communication in D2D; determining group communication parameters corresponding to the group identifier, wherein the group communication parameter is dynamically established for device to device A parameter used by the group of D2D communication; an interface for transmitting the group communication parameter to the UE.

With reference to the ninth aspect, in a first possible implementation manner of the ninth aspect, the interface is further configured to receive, by the application server, a group communication termination request that includes a group identifier, and terminate the group communication corresponding to the group identifier. And sending a group communication termination response to the neighboring service function entity.

By adopting the above technical solution, the application server establishes a group for D2D communication, determines a group identifier corresponding to the group, obtains a group communication parameter corresponding to the group identifier, and notifies the UE of the group communication parameter, so that the communication group is no longer By establishing in a static manner, a group of D2D communication can be dynamically established in real time, and if the UE needs to perform group communication temporarily, the static group establishment mode cannot satisfy the problem of dynamic group communication.

DRAWINGS

1 is a schematic diagram of a D2D system architecture proposed in the prior art;

2 is a schematic structural diagram of a group communication system according to an embodiment of the present invention;

3 is a flowchart of a group communication method according to Embodiment 1 of the present invention;

4 is a schematic structural diagram of a group communication device according to Embodiment 1 of the present invention;

FIG. 5 is a schematic structural diagram of a group communication apparatus according to Embodiment 1 of the present invention; FIG.

FIG. 6 is a schematic structural diagram of a group communication apparatus according to Embodiment 1 of the present invention; FIG.

FIG. 7 is a schematic structural diagram of a group communication device according to various embodiments of the present invention; FIG.

8 is a flowchart of a group communication method according to Embodiment 2 of the present invention;

FIG. 9 is a flowchart of a group communication method according to Embodiment 3 of the present invention; FIG.

FIG. 10 is a flowchart of a group communication method according to Embodiment 4 of the present invention.

detailed description

The main implementation principles, specific implementation manners, and the corresponding beneficial effects that can be achieved by the technical solutions of the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

Embodiment 1

The first embodiment of the present invention provides a group communication system, as shown in FIG. 2, which mainly includes an application server, a neighboring service function entity, and a user equipment (English: User Equipment, abbreviated as UE). The application server and the neighboring service function entity may be two independent network devices set on the network side, or different function modules in the same device. In the technical solution proposed by the first embodiment of the present invention, for convenience of explanation, the application server and the neighboring service function entity are used as two independent network devices to elaborate the technical solution.

Specifically, in the technical solution proposed by the first embodiment of the present invention, the application server takes the MCPTT Server as an example for detailed description.

The MCPTT Server is configured to determine a group communication UE, establish a group for D2D communication according to the determined UE that performs group communication, and determine a group identifier corresponding to the established group. The MCPTT Server obtains the group communication parameter corresponding to the group identifier, and sends the obtained group communication parameter to the UE in the group corresponding to the group identifier.

When the MCPTT Server dynamically establishes group communication, it can be triggered in the following two ways:

The first mode is: the MCPTT Server receives the dynamic group establishment request sent by the UE, and the MCPTT Server performs the dynamic group establishment operation when receiving the dynamic group establishment request.

The dynamic grouping request is used to dynamically establish a communication group.

In the dynamic build request, you can include the group ID of the group you want to merge. For example, the UE requests to identify the group of the group as the two groups of A and B, and combines them into one group, so that the UE can simultaneously perform group communication with other UEs in the group IDs A and B at the same time. In this manner, the MCPTT Server determines the group identifiers of the groups to be merged, and combines the corresponding groups of the group identifiers into the same group, and allocates new ones. Group ID.

In the dynamic grouping request, the UE identity to be joined to the group communication may be included. For example, the UE requests to add other UEs to the group communication to enable group communication with the UE. In this manner, the MCPTT server obtains the UE identity in the dynamic grouping request, and according to the received dynamic grouping request, establishes a group including the UE corresponding to the UE identity to be joined to the group communication, and allocates a new group identifier.

The second way: MCPTT Server directly performs dynamic group building operations.

In this mode, the MCPTT Server directly performs dynamic group establishment operations, establishes a new group, and assigns a group identifier to the established new group.

For example, in the event of a natural disaster, the MCPTT Server performs a dynamic group establishment operation and establishes a command group. The command group can contain multiple static groups (such as fire groups, public security groups, etc.).

The MCPTT Server performs dynamic group establishment operations and assigns corresponding group identifiers to the established groups. The MCPTT Server obtains the group communication parameters corresponding to the group identifier.

The group communication parameter includes at least layer 2 ProSe Layer-2 Group ID, ProSe Group IP multicast address, IP address type, security parameters, and the like.

The MCPTT Server obtains the group communication parameter corresponding to the group identifier, and may include any one of the following two methods:

The first way: MCPTT Server assigns group communication parameters corresponding to the group ID.

In this mode, the group communication parameters may be pre-stored in the MCPTT Server, and the stored group communication parameters are allocated to the established group when the dynamic group establishment operation is completed.

The group communication parameter pre-stored in the MCPTT Server may be a group communication parameter released when the last group communication is terminated.

The second method is: obtaining group communication parameters corresponding to the group identifier in the neighboring service function entity.

In this manner, the MCPTT Server sends a dynamic group communication request including the group identity to the neighboring service function entity.

The neighboring service function entity receives the dynamic group communication request sent by the MCPTT Server, obtains the group identity in the received dynamic group communication request, and the neighboring service function entity allocates the group communication parameter corresponding to the group identity, and sends the group communication parameter to the MCPTT Server. Dynamic group communication response message.

The MCPTT Server is configured to send group communication parameters to the UE.

The MCPTT Server may send the group communication parameters to all UEs in the group corresponding to the group identifier.

In this manner, the MCPTT Server may send a notification message including group communication parameters to all UEs in the group corresponding to the group identifier.

If the MCPTT Server dynamically establishes a group communication according to the received dynamic group establishment request, the MCPTT Server sends a dynamic group establishment response to the UE that sends the dynamic group establishment request, where the dynamic group establishment response includes the group communication parameter. The MCPTT Server sends the group communication parameters to all UEs in the group corresponding to the group identity. For example, the MCPTT Server may send a notification message including group communication parameters to all UEs in the group corresponding to the group identity.

The UE is configured to obtain group communication parameters, configure and perform group communication according to the obtained group communication parameters.

The application server is further configured to terminate the group communication, and send a notification message for terminating the group communication to the UE in the group corresponding to the identifier.

The trigger mode of the application server when the group communication is terminated may include the following methods:

The first way: the application server actively terminates group communication.

The second mode: the application server receives the group communication termination request sent by the UE, and when receiving the group communication termination request, the application server terminates the group communication.

The third way: terminate the group communication according to the termination group communication response sent by the received neighboring service function entity.

In this manner, the application server sends a termination group communication request including the group identifier to the neighboring service function entity, and the neighboring service function entity returns the termination group communication response when receiving the termination group communication request sent by the application server, and the application server receives the When the group communication response is terminated, the group communication corresponding to the group identifier is terminated.

The UE receives the notification message sent by the application server, ends the group communication according to the notification message, and releases the group communication parameter.

The notification message is used to terminate group communication.

Correspondingly, based on the foregoing group communication system, a first embodiment of the present invention provides a group communication method. As shown in Figure 3, the specific processing flow is as follows:

Correspondingly, based on the system architecture shown in FIG. 2, the first embodiment of the present invention provides a group communication method, as shown in FIG. 3, and the specific processing flow is as follows:

The application server is described in detail by taking MCPTT Server as an example.

In step 31, the MCPTT Server establishes a group for D2D communication and determines a group identifier corresponding to the established group.

When the MCPTT Server dynamically establishes group communication, it can be triggered in the following two ways:

The first mode is: the MCPTT Server receives the dynamic group establishment request sent by the UE, and the MCPTT Server performs the dynamic group establishment operation when receiving the dynamic group establishment request.

The dynamic grouping request is used to dynamically establish a communication group.

In the dynamic build request, you can include the group ID of the group you want to merge. For example, the UE requests to identify the group of the group as the two groups of A and B, and combines them into one group, so that the UE can simultaneously perform group communication with other UEs in the group IDs A and B at the same time. In this manner, the MCPTT Server determines the group identifiers of the groups to be merged, and combines the corresponding groups of the group identifiers into the same group, and assigns a new group identifier.

In the dynamic grouping request, the UE identity to be joined to the group communication may be included. For example, the UE requests to add other UEs to the group communication to enable group communication with the UE. In this manner, the MCPTT server obtains the UE identity in the dynamic grouping request, and according to the received dynamic grouping request, establishes a group including the UE corresponding to the UE identity to be joined to the group communication, and allocates a new group identifier.

The second way: MCPTT Server directly performs dynamic group building operations.

In this mode, the MCPTT Server directly performs dynamic group establishment operations, establishes a new group, and assigns a group identifier to the established new group.

For example, in the event of a natural disaster, the MCPTT Server performs a dynamic group establishment operation and establishes a command group. The command group can contain multiple static groups (such as fire groups, public security groups, etc.). The MCPTT Server performs dynamic group establishment operations and assigns corresponding group identifiers to the established groups.

Step 32: The MCPTT Server obtains the group communication parameter corresponding to the group identifier.

The group communication parameter includes at least layer 2 ProSe Layer-2 Group ID and ProSe Group IP. Multicast address, IP address type, security parameters, etc.

The MCPTT Server obtains the group communication parameter corresponding to the group identifier, and may include any one of the following two methods:

The first way: MCPTT Server assigns group communication parameters corresponding to the group ID.

In this mode, the group communication parameters may be pre-stored in the MCPTT Server, and the stored group communication parameters are allocated to the established group when the dynamic group establishment operation is completed.

The group communication parameter pre-stored in the MCPTT Server may be a group communication parameter released when the last group communication is terminated.

The second method is: obtaining group communication parameters corresponding to the group identifier in the neighboring service function entity.

In this manner, the MCPTT Server sends a dynamic group communication request including the group identity to the neighboring service function entity.

The neighboring service function entity receives the dynamic group communication request sent by the MCPTT Server, obtains the group identity in the received dynamic group communication request, and the neighboring service function entity allocates the group communication parameter corresponding to the group identity, and sends the group communication parameter to the MCPTT Server. Dynamic group communication response message.

Step 33: The MCPTT Server sends the obtained group communication parameter to the UE in the group corresponding to the group identifier.

The MCPTT Server may send the group communication parameters to all UEs in the group corresponding to the group identifier.

In this manner, the MCPTT Server may send a notification message including group communication parameters to all UEs in the group corresponding to the group identifier.

If the MCPTT Server dynamically establishes a group communication according to the received dynamic group establishment request, the MCPTT Server sends a dynamic group establishment response to the UE that sends the dynamic group establishment request, where the dynamic group establishment response includes the group communication parameter. The MCPTT Server sends the group communication parameters to all UEs in the group corresponding to the group identity. For example, the MCPTT Server may send a notification message including group communication parameters to all UEs in the group corresponding to the group identity.

In step 34, the UE obtains group communication parameters, configures and performs group communication according to the obtained group communication parameters.

In the above steps 31 to 34, the process of dynamically establishing group communication is explained in detail, optionally, After the group is established, the UE may further include:

Step 35: The application server terminates the group communication, and sends a notification message for terminating the group communication to the UE in the group corresponding to the identifier.

The trigger mode of the application server when the group communication is terminated may include the following methods:

The first way: the application server actively terminates group communication.

The second mode: the application server receives the group communication termination request sent by the UE, and when receiving the group communication termination request, the application server terminates the group communication.

The third way: terminate the group communication according to the termination group communication response sent by the received neighboring service function entity.

In this manner, the application server sends a termination group communication request including the group identifier to the neighboring service function entity, and the neighboring service function entity returns the termination group communication response when receiving the termination group communication request sent by the application server, and the application server receives the When the group communication response is terminated, the group communication corresponding to the group identifier is terminated.

Step 36: The UE receives the notification message sent by the application server, ends the group communication according to the notification message, and releases the group communication parameter.

The notification message is used to terminate group communication.

Correspondingly, the embodiment of the present invention further provides a group communication device, as shown in FIG. 4, the specific structural components thereof include:

The establishing module 401 is configured to establish a group for device-to-device D2D communication, and transmit the group identifier to the determining module.

The determining module 402 is configured to determine a group identifier corresponding to the group established by the establishing module 401.

The obtaining module 403 is configured to obtain a group communication parameter corresponding to the group identifier determined by the determining module.

The sending module 404 is configured to send the group communication parameter to the user equipment UE in the group corresponding to the group identifier determined by the determining module.

Optionally, the foregoing apparatus further includes:

a receiving module, configured to receive a dynamic grouping request sent by the UE, where the dynamic grouping request is Used to request the establishment of a communication group dynamically.

Specifically, the obtaining module 403 is specifically configured to allocate a group communication parameter corresponding to the group identifier, or send a dynamic group communication request including the group identifier to the neighboring service function entity, and receive the dynamic group communication response. The group communication parameter corresponding to the group identifier is obtained in the message.

Specifically, the sending module 404 is specifically configured to send the group communication parameter to all UEs in the group corresponding to the group identifier.

Optionally, the foregoing establishing module 401 is further configured to terminate the group communication, and the sending module 404 is further configured to send, to the UE in the group corresponding to the group identifier, a notification message for terminating the group communication.

Optionally, the sending module 404 is further configured to receive a group communication termination request sent by the UE.

Optionally, the sending module 404 is further configured to send a termination group communication request that includes the group identifier to the neighboring service function entity, where the establishing module 401 is further configured to receive the termination group communication sent by the neighboring service function entity. In response, the group communication corresponding to the group identifier is terminated.

Correspondingly, the embodiment of the present invention further provides a group communication device, as shown in FIG. 5, the specific structural components thereof include:

The obtaining module 501 is configured to obtain group communication parameters, and transmit the obtained group communication parameters to the execution module, where the group communication parameters are parameters used to dynamically establish a group for device-to-device D2D communication.

The executing module 502 is configured to perform group communication according to the group communication parameter transmitted by the obtaining module.

Optionally, the foregoing apparatus further includes: a sending module, configured to send a dynamic grouping request to the application server, where the dynamic grouping request is used to request to dynamically establish a communication group; and the receiving module is configured to receive the sending by the application server Dynamically establishing a group response message; the obtaining module, configured to obtain a group communication parameter in the received dynamic grouping response message.

Specifically, the obtaining module 501 is specifically configured to obtain a group identifier, where the group identifier is an identifier corresponding to a group that dynamically establishes group communication in the D2D, and the sending module is further configured to send the inclusion to the neighboring service function entity. a dynamic group communication request of the group identifier; the receiving module is further configured to receive a dynamic group communication response sent by the neighboring service function entity; the obtaining module is specifically configured to: Obtaining a group communication parameter corresponding to the group identifier in a dynamic group communication response sent by the received neighboring service function entity.

Optionally, the receiving module is further configured to receive a notification message sent by the application server, where the notification message is used to terminate the group communication, and the executing module is further configured to end the group communication according to the notification message, and release the group communication parameter. .

Optionally, the sending module is further configured to send a group communication termination request.

Correspondingly, the embodiment of the present invention further provides a group communication device, as shown in FIG. 6, the specific structural components thereof include:

The obtaining module 601 is configured to obtain a group identifier in the received dynamic group request sent by the user equipment UE, and transmit the group identifier to the determining module 602, where the group identifier is a group used for dynamically establishing group communication in the D2D. Corresponding identifier.

The determining module 602 is configured to determine a group communication parameter corresponding to the group identifier obtained by the obtaining module 601, wherein the group communication parameter is a parameter used to dynamically establish a group for device-to-device D2D communication.

The sending module 603 is configured to send the group communication parameter determined by the determining module 602 to the UE.

Optionally, the foregoing apparatus further includes: a receiving module, configured to receive a group communication termination request that is sent by the application server and includes a group identifier; and the sending module is further configured to: when terminating the group communication corresponding to the group identifier, The neighboring service function entity sends a group communication termination response.

Correspondingly, the embodiment of the present invention further provides a group communication device, as shown in FIG. 7, the specific structural components thereof include:

a memory 701, configured to store program instructions;

The memory may be a volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM); or non-volatile memory (English: non-volatile memory), such as flashing Memory (English: flash memory), hard disk (English: hard disk drive, abbreviated: HDD) or solid state drive (English: solid-state drive, abbreviation: SSD); or a combination of the above types of memory.

The signal processor 702 is configured to: perform a group for device-to-device D2D communication according to the program instructions stored in the memory 701; determine a group identifier corresponding to the group; and obtain a group communication corresponding to the group identifier parameter.

The signal processor is configured to obtain, according to the program code stored in the memory, a metadata index value corresponding to the updated metadata transmitted by the interface 21.

The signal processor can be a central processing unit (English: central processing unit, abbreviated: CPU), or a combination of a CPU and a hardware chip. The signal processor can also be a network processor (English: network processor, abbreviation: NP). Either a combination of CPU and NP, or a combination of NP and hardware chips.

The above hardware chip may be a combination of one or more of the following: an application-specific integrated circuit (ASIC: ASIC), a field-programmable gate array (English: field-programmable gate array, abbreviation: FPGA) , Complex programmable logic device (English: complex programmable logic device, abbreviation: CPLD).

The interface 703 is configured to send the group communication parameter to the user equipment UE in the group corresponding to the group identifier.

The interface may be one or more of the following: a network interface controller (English: network interface controller, abbreviation: NIC), such as an Ethernet NIC, which can provide a copper wire and/or a fiber interface; The NIC of the wireless interface, such as a wireless local area network (English: wireless local area network, abbreviated as WLAN) NIC.

Optionally, the foregoing interface 703 is further configured to receive a dynamic grouping request sent by the UE, where the dynamic grouping request is used to request to dynamically establish a communication group.

Optionally, the signal processor 702 is configured to allocate a group communication parameter corresponding to the group identifier, or send a dynamic group communication request including the group identifier to a neighboring service function entity, and receive the received The group communication parameter corresponding to the group identifier is obtained in the dynamic group communication response message.

Specifically, the foregoing interface 703 is specifically configured to send the group communication parameter to all UEs in the group corresponding to the group identifier.

Optionally, the signal processor 702 is further configured to terminate group communication; the interface 703 is further used. A notification message for terminating the group communication is sent to the UE in the group corresponding to the group identifier.

Optionally, the foregoing interface 703 is further configured to receive a group communication termination request sent by the UE.

Optionally, the foregoing interface 703 is further configured to send a termination group communication request that includes a group identifier to the neighboring service function entity, where the signal processor 702 is further configured to receive the termination group communication sent by the neighboring service function entity. In response, the group communication corresponding to the group identifier is terminated.

Correspondingly, the embodiment of the present invention further provides a group communication device, as shown in FIG. 7, the specific structural components thereof include:

The memory 701 is configured to store program instructions.

The memory may be a volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM); or non-volatile memory (English: non-volatile memory), such as flashing Memory (English: flash memory), hard disk (English: hard disk drive, abbreviated: HDD) or solid state drive (English: solid-state drive, abbreviation: SSD); or a combination of the above types of memory.

The signal processor 702 is configured to: obtain, according to program instructions obtained in the memory, a group communication parameter, wherein the group communication parameter is a parameter used to dynamically establish a group for device-to-device D2D communication; Parameter configuration and group communication.

The signal processor 702 is configured to obtain, according to the program code stored in the memory, a metadata index value corresponding to the updated metadata transmitted by the interface 21.

The signal processor 702 can be a central processing unit (English: central processing unit, abbreviated: CPU), or a combination of a CPU and a hardware chip. The signal processor can also be a network processor (English: network processor, abbreviation: NP). Either a combination of CPU and NP, or a combination of NP and hardware chips.

The above hardware chip may be a combination of one or more of the following: an application-specific integrated circuit (ASIC: ASIC), a field-programmable gate array (English: field-programmable gate array, abbreviation: FPGA) , Complex programmable logic device (English: complex programmable logic device, abbreviation: CPLD).

Also includes:

The interface 703 is configured to send a dynamic grouping request to the application server, where the dynamic grouping request is used to request to dynamically establish a communication group; and receive a dynamic grouping response message sent by the application server; the signal processor 702, specifically Used to obtain group communication parameters in the received dynamic grouping response message.

The interface may be one or more of the following: a network interface controller (English: network interface controller, abbreviation: NIC), such as an Ethernet NIC, which can provide a copper wire and/or a fiber interface; The NIC of the wireless interface, such as a wireless local area network (English: wireless local area network, abbreviated as WLAN) NIC.

Specifically, the signal processor 702 is specifically configured to obtain a group identifier, where the group identifier is an identifier corresponding to a group for dynamically establishing group communication in the D2D.

Optionally, the interface 703 is further configured to send, to the neighboring service function entity, a dynamic group communication request that includes the group identifier, and receive a dynamic group communication response sent by the neighboring service function entity; the signal processor 702, Specifically, the group communication parameter corresponding to the group identifier is obtained in a dynamic group communication response sent by the received neighboring service function entity.

Optionally, the interface 703 is further configured to receive a notification message sent by the application server, where the notification message is used to terminate group communication, and the signal processor 702 is further configured to end group communication according to the notification message, and release Group communication parameters.

Optionally, the interface 703 is further configured to send a group communication termination request.

Correspondingly, the embodiment of the present invention further provides a group communication device, as shown in FIG. 7, the specific structural components thereof include:

The memory 701 is configured to store program instructions.

The memory may be a volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM); or non-volatile memory (English: non-volatile memory), such as flashing Memory (English: flash memory), hard disk (English: hard disk drive, abbreviated: HDD) or solid state drive (English: solid-state drive, abbreviation: SSD); or a combination of the above types of memory.

The signal processor 702 is configured to execute according to the program instructions obtained in the memory 701: receiving Obtaining, in the dynamic group request sent by the user equipment UE, the group identifier, where the group identifier is an identifier corresponding to the group for dynamically establishing group communication in the D2D; determining a group communication parameter corresponding to the group identifier, where the group The communication parameters are the parameters used to dynamically establish a group for device-to-device D2D communication.

The signal processor is configured to obtain, according to the program code stored in the memory, a metadata index value corresponding to the updated metadata transmitted by the interface 21.

The signal processor can be a central processing unit (English: central processing unit, abbreviated: CPU), or a combination of a CPU and a hardware chip. The signal processor can also be a network processor (English: network processor, abbreviation: NP). Either a combination of CPU and NP, or a combination of NP and hardware chips.

The above hardware chip may be a combination of one or more of the following: an application-specific integrated circuit (ASIC: ASIC), a field-programmable gate array (English: field-programmable gate array, abbreviation: FPGA) , Complex programmable logic device (English: complex programmable logic device, abbreviation: CPLD).

The interface 703 is configured to send the group communication parameter to the UE.

The interface may be one or more of the following: a network interface controller (English: network interface controller, abbreviation: NIC), such as an Ethernet NIC, which can provide a copper wire and/or a fiber interface; The NIC of the wireless interface, such as a wireless local area network (English: wireless local area network, abbreviated as WLAN) NIC.

Optionally, the interface 703 is further configured to receive a group communication termination request that is sent by the application server and includes a group identifier, and send a group communication termination response to the neighboring service function entity when terminating the group communication corresponding to the group identifier. .

Embodiment 2

A second embodiment of the present invention provides a group communication system. The architecture of the group is as shown in FIG. 2, which mainly includes an application server, a neighboring service function entity, and a UE. The application server and the neighboring service function entity may be two independent network devices set on the network side, or different function modules in the same device. In the technical solution proposed by the second embodiment of the present invention, the application server and the neighboring industry are used for convenience of explanation. The functional entity acts as two separate network devices to elaborate the technical solution.

Specifically, in the technical solution proposed by the second embodiment of the present invention, the application server takes the MCPTT Server as an example for detailed description.

The MCPTT Server is configured to determine a group communication UE, establish a group for D2D communication according to the determined UE that performs group communication, and determine a group identifier corresponding to the established group.

When the MCPTT Server establishes a group for D2D communication, it can be implemented in the following two ways:

The first way: establish a group for D2D communication according to the received dynamic grouping request.

In this manner, the UE is configured to send a dynamic grouping request. The dynamic grouping request is used to dynamically establish a communication group.

The dynamic establishment request received by the MCPTT server may include the following two types of information:

A: In the dynamic grouping request, you can include the group ID of the group to be merged.

For example, the UE requests to identify the group of the group as the two groups of A and B, and combines them into one group, so that the UE can simultaneously perform group communication with other UEs in the group IDs A and B at the same time.

In this manner, the MCPTT Server determines the group identifiers of the groups to be merged, and combines the corresponding groups of the group identifiers into the same group, and assigns a new group identifier.

B: In the dynamic grouping request, the UE identity to be added to the group communication may be included.

For example, the UE requests to add other UEs to the group communication to enable group communication with the UE.

In this manner, the MCPTT server obtains the UE identifier in the dynamic group establishment request, and according to the received dynamic group establishment request, establishes a group including the UE corresponding to the UE identifier, and allocates a new group identifier.

The MCPTT Server sends a dynamic group communication request to the neighboring service function entity, and includes the group identity in the dynamic group communication request.

The neighboring service function entity receives the dynamic group communication request sent by the MCPTT Server, obtains the group identifier in the received dynamic group communication request, and allocates the group corresponding to the group identifier to the neighboring service function entity. Communication parameters and send a dynamic group communication response message containing the group communication parameters to the MCPTT Server.

The group communication parameter includes at least layer 2 ProSe Layer-2 Group ID, ProSe Group IP multicast address, IP address type, security parameters, and the like.

The MCPTT Server receives the dynamic group communication response message including the group communication parameters, and obtains the group communication parameters in the received dynamic group communication response message. The MCPTT Server sends group communication parameters to the UE.

The MCPTT Server may send the group communication parameters to all UEs in the group corresponding to the group identifier.

In this manner, the MCPTT Server may send a notification message including group communication parameters to all UEs in the group corresponding to the group identifier.

Correspondingly, the second embodiment of the present invention further provides a group communication method, as shown in FIG. 8, the specific processing flow is as follows:

In the technical solution proposed by the second embodiment of the present invention, for convenience of explanation, the application server and the neighboring service function entity are used as two independent network devices to elaborate the technical solution.

Specifically, in the technical solution proposed by the second embodiment of the present invention, the application server takes the MCPTT Server as an example for detailed description.

In step 81, the MCPTT Server establishes a group for D2D communication, and determines a group identifier corresponding to the established group.

When the MCPTT Server establishes a group for D2D communication, it can be implemented in the following two ways:

The first way: establish a group for D2D communication according to the received dynamic grouping request.

In this manner, the UE is configured to send a dynamic grouping request. The dynamic grouping request is used to dynamically establish a communication group.

The dynamic establishment request received by the MCPTT server may include the following two types of information:

A: In the dynamic grouping request, you can include the group ID of the group to be merged.

For example, the UE requests to identify the group of the group in which it is the two groups of A and B, and merge them into one group. The UE is enabled to simultaneously perform group communication with other UEs in the group identifications A and B at the same time.

In this manner, the MCPTT Server determines the group identifiers of the groups to be merged, and combines the corresponding groups of the group identifiers into the same group, and assigns a new group identifier.

B: In the dynamic grouping request, the UE identity to be added to the group communication may be included.

For example, the UE requests to add other UEs to the group communication to enable group communication with the UE.

In this manner, the MCPTT server obtains the UE identifier in the dynamic group establishment request, and according to the received dynamic group establishment request, establishes a group including the UE corresponding to the UE identifier, and allocates a new group identifier.

Step 82: The MCPTT Server sends a dynamic group communication request to the neighboring service function entity, and the group identity is included in the dynamic group communication request.

Step 83: The neighboring service function entity receives the dynamic group communication request sent by the MCPTT server, obtains the group identity in the received dynamic group communication request, and the neighboring service function entity allocates the group communication parameter corresponding to the group identity.

Step 84, and send a dynamic group communication response message containing the group communication parameters to the MCPTT Server.

The group communication parameter includes at least layer 2 ProSe Layer-2 Group ID, ProSe Group IP multicast address, IP address type, security parameters, and the like.

Step 85: The MCPTT Server receives the dynamic group communication response message including the group communication parameter, and obtains the group communication parameter in the received dynamic group communication response message.

In step 86, the MCPTT Server sends the group communication parameters to the UE.

The MCPTT Server may send the group communication parameters to all UEs in the group corresponding to the group identifier.

In this manner, the MCPTT Server may send a notification message including group communication parameters to all UEs in the group corresponding to the group identifier.

Embodiment 3

A third embodiment of the present invention provides a group communication system, and its architecture is as shown in FIG. 2, which mainly includes Use server, proximity business function entity and UE. The application server and the neighboring service function entity may be two independent network devices set on the network side, or different function modules in the same device. In the technical solution proposed by the second embodiment of the present invention, for convenience of explanation, the application server and the neighboring service function entity are used as two independent network devices to elaborate the technical solution.

Specifically, in the technical solution proposed in the third embodiment of the present invention, the application server takes the MCPTT Server as an example for detailed description.

The MCPTT Server is configured to determine a group communication UE, establish a group for D2D communication according to the determined UE that performs group communication, and determine a group identifier corresponding to the established group.

When the MCPTT Server establishes a group for D2D communication, it can be implemented in the following two ways:

The first way: establish a group for D2D communication according to the received dynamic grouping request.

In this manner, the UE is configured to send a dynamic grouping request. The dynamic grouping request is used to dynamically establish a communication group.

The dynamic establishment request received by the MCPTT server may include the following two types of information:

A: In the dynamic grouping request, you can include the group ID of the group to be merged.

For example, the UE requests to identify the group of the group as the two groups of A and B, and combines them into one group, so that the UE can simultaneously perform group communication with other UEs in the group IDs A and B at the same time.

In this manner, the MCPTT Server determines the group identifiers of the groups to be merged, and combines the corresponding groups of the group identifiers into the same group, and assigns a new group identifier.

B: In the dynamic grouping request, the UE identity to be added to the group communication may be included.

For example, the UE requests to add other UEs to the group communication to enable group communication with the UE.

In this manner, the MCPTT server obtains the UE identifier in the dynamic group establishment request, and according to the received dynamic group establishment request, establishes a group including the UE corresponding to the UE identifier, and allocates a new group identifier.

The MCPTT Server sends a notification message containing the group identity to the UE.

The MCPTT Server may send a notification message including the group identifier to the UE that sends the dynamic grouping request. The MCPTT Server can also send a notification message containing the group identifier to all UEs in the newly created group.

The UE obtains the group identifier in the received notification message when receiving the notification message sent by the MCPTT Server, and the UE sends a dynamic group communication request including the group identifier to the neighboring service function entity.

The neighboring service function entity receives the dynamic group communication request that is sent by the UE and includes the group identifier, obtains the group identifier in the dynamic group request sent by the received UE, determines the group communication parameter corresponding to the group identifier, and passes the group communication parameter A dynamic group communication response is sent to the UE.

The group communication parameters are parameters used to dynamically establish a group for D2D communication.

The UE receives the dynamic group communication response sent by the neighboring service function entity, obtains the group communication parameter in the dynamic group communication response, configures and performs group communication according to the obtained group communication parameter.

The group communication parameter includes at least layer 2 ProSe Layer-2 Group ID, ProSe Group IP multicast address, IP address type, security parameters, and the like.

Correspondingly, the third embodiment of the present invention further provides a group communication method, as shown in FIG. 9, the specific processing flow is as follows:

In the technical solution proposed by the third embodiment of the present invention, for convenience of explanation, the application server and the neighboring service function entity are used as two independent network devices to elaborate the technical solution.

Specifically, in the technical solution proposed in the third embodiment of the present invention, the application server takes the MCPTT Server as an example for detailed description.

Step 91: The MCPTT Server is configured to establish a group for D2D communication, and determine a group identifier corresponding to the established group.

When the MCPTT Server establishes a group for D2D communication, it can be implemented in the following two ways:

The first way: establish a group for D2D communication according to the received dynamic grouping request.

In this manner, the UE is configured to send a dynamic grouping request. The dynamic grouping request is used to dynamically establish a communication group.

The dynamic establishment request received by the MCPTT server may include the following two types. information:

A: In the dynamic grouping request, you can include the group ID of the group to be merged.

For example, the UE requests to identify the group of the group as the two groups of A and B, and combines them into one group, so that the UE can simultaneously perform group communication with other UEs in the group IDs A and B at the same time.

In this manner, the MCPTT Server determines the group identifiers of the groups to be merged, and combines the corresponding groups of the group identifiers into the same group, and assigns a new group identifier.

B: In the dynamic grouping request, the UE identity to be added to the group communication may be included.

For example, the UE requests to add other UEs to the group communication to enable group communication with the UE.

In this manner, the MCPTT server obtains the UE identifier in the dynamic group establishment request, and according to the received dynamic group establishment request, establishes a group including the UE corresponding to the UE identifier, and allocates a new group identifier.

Step 92: The MCPTT Server sends a notification message including the group identifier to the UE.

The MCPTT Server may send a notification message including the group identifier to the UE that sends the dynamic grouping request. The MCPTT Server can also send a notification message containing the group identifier to all UEs in the newly created group.

Step 93: Upon receiving the notification message sent by the MCPTT Server, the UE obtains the group identifier in the received notification message.

In step 94, the UE sends a dynamic group communication request including the group identity to the neighboring service function entity.

Step 95: The neighboring service function entity receives a dynamic group communication request that is sent by the UE and includes the group identity.

Step 96: The neighboring service function entity obtains the group identifier in the dynamic group request sent by the received UE, and determines a group communication parameter corresponding to the group identifier.

Step 97: Send the group communication parameter to the UE by using a dynamic group communication response.

The group communication parameters are parameters used to dynamically establish a group for D2D communication.

Step 98: The UE receives a dynamic group communication response sent by the neighboring service function entity, obtains a group communication parameter in the dynamic group communication response, and configures and performs group communication according to the obtained group communication parameter.

The group communication parameter includes at least layer 2 ProSe Layer-2 Group ID, ProSe Group IP multicast address, IP address type, security parameters, and the like.

Embodiment 4

A fourth embodiment of the present invention provides a group communication system, as shown in FIG. 2, which mainly includes an application server, a neighboring service function entity, and a UE. The application server and the neighboring service function entity may be two independent network devices set on the network side, or different function modules in the same device. In the technical solution proposed by the fourth embodiment of the present invention, for convenience of explanation, the application server and the neighboring service function entity are used as two independent network devices to elaborate the technical solution.

MCPTT Server, used to terminate group communication operations.

The MCPTT Server can terminate the group communication operation in the following two ways:

The first mode: the MCPTT Server performs a terminating group communication operation according to the received group communication termination request sent by the UE.

In this manner, the UE is configured to send a group communication termination request to the application server.

When the MCPTT Server receives the group communication termination request, it obtains the group identifier in the group communication termination request. The MCPTT Server sends a group communication termination request containing the group identity to the neighboring service function entity.

The neighboring service function entity sends a group communication termination response upon receiving the group communication termination request.

Upon receiving the group communication termination response, the MCPTT Server returns a group communication termination response to the UE transmitting the group communication termination request, and notifies the UE group communication within the group in which the group identification is terminated.

The neighboring service function entity reclaims the group communication parameters released when the group communication is terminated.

The group communication parameter includes at least layer 2 ProSe Layer-2 Group ID, ProSe Group IP multicast address, IP address type, security parameters, and the like.

The second way: the application server actively terminates the group communication operation.

In this manner, the MCPTT Server sends a group communication termination request including the group identity to the neighboring service function entity.

The neighboring service function entity sends a group communication termination response upon receiving the group communication termination request.

The MCPTT Server terminates the group communication operation upon receiving the group communication termination response. And notify the UE group in the group where the group identifier is located to terminate communication.

The neighboring service function entity reclaims the group communication parameters released when the group communication is terminated.

The group communication parameter includes at least layer 2 ProSe Layer-2 Group ID, ProSe Group IP multicast address, IP address type, security parameters, and the like.

Correspondingly, a fourth embodiment of the present invention provides a group communication method. For convenience of explanation, the application server and the neighboring service function entity are used as two independent network devices to elaborate the technical solution. As shown in Figure 10, the specific processing flow is as follows:

In step 101, the MCPTT Server terminates the group communication operation.

The MCPTT Server can terminate the group communication operation in the following two ways:

The first mode: the MCPTT Server performs a terminating group communication operation according to the received group communication termination request sent by the UE.

In this manner, the UE is configured to send a group communication termination request to the application server.

When the MCPTT Server receives the group communication termination request, it obtains the group identifier in the group communication termination request. The MCPTT Server sends a group communication termination request containing the group identity to the neighboring service function entity.

The neighboring service function entity sends a group communication termination response upon receiving the group communication termination request.

Upon receiving the group communication termination response, the MCPTT Server returns a group communication termination response to the UE transmitting the group communication termination request, and notifies the UE group communication within the group in which the group identification is terminated.

The neighboring service function entity reclaims the group communication parameters released when the group communication is terminated.

The group communication parameter includes at least layer 2 ProSe Layer-2 Group ID, ProSe Group IP multicast address, IP address type, security parameters, and the like.

The second way: the application server actively terminates the group communication operation.

In this manner, the MCPTT Server sends a group communication termination request including the group identity to the neighboring service function entity.

The neighboring service function entity sends a group communication termination response upon receiving the group communication termination request.

The MCPTT Server terminates the group communication operation upon receiving the group communication termination response. And notify the UE group in the group where the group identifier is located to terminate communication.

Step 102: The neighboring service function entity reclaims the group communication parameter released when the group communication is terminated.

The group communication parameter includes at least layer 2 ProSe Layer-2 Group ID and ProSe Group IP. Multicast address, IP address type, security parameters, etc.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, read-only optical disks, optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus, and computer program products according to embodiments of the invention. It will be understood that a combination of the processes and/or blocks in the flowcharts and/or <RTIgt; These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including all modifications and variations of the preferred embodiments.

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims (42)

A group communication method, comprising: The application server establishes a group for device-to-device D2D communication; and Determining a group identifier corresponding to the group; Obtaining a group communication parameter corresponding to the group identifier; Sending the group communication parameter to the user equipment UE in the group corresponding to the group identifier. The method of claim 1 further comprising: prior to establishing the group for D2D communication, further comprising: Receiving a dynamic grouping request sent by the UE, where the dynamic grouping request is used to request to dynamically establish a communication group. The method of claim 1 or 2, wherein obtaining group communication parameters corresponding to the group identifier comprises: Allocating a group communication parameter corresponding to the group identifier; or Sending a dynamic group communication request including the group identifier to the neighboring service function entity, and obtaining a group communication parameter corresponding to the group identifier in the received dynamic group communication response message. The method according to any one of claims 1 to 3, wherein the transmitting the group communication parameter to the UE comprises: Sending the group communication parameters to all UEs in the group corresponding to the group identifier. The method according to any one of claims 1 to 4, further comprising: after transmitting the group communication parameter to the user equipment UE in the group corresponding to the group identifier, The application server terminates group communication; A notification message for terminating the group communication is sent to the UE in the group corresponding to the group identifier. The method of claim 5, further comprising: before the application server terminates the group communication, further comprising: The application server receives the group communication termination request sent by the UE. The method of claim 6 wherein the application server receives the UE transmission After the group communication termination request, it also includes: Sending a termination group communication request containing the group identity to the neighboring service function entity; And when the termination group communication response sent by the neighboring service function entity is received, the group communication corresponding to the group identifier is terminated. A group communication method, comprising: User equipment UE obtains group communication parameters, wherein the group communication parameters are parameters used to dynamically establish a group for device-to-device D2D communication; The group communication is configured according to the group communication parameters. The method of claim 8, wherein the UE obtains the group communication parameters, including: Sending, by the UE, a dynamic grouping request to an application server, where the dynamic grouping request is used to request to dynamically establish a communication group; Receiving a dynamic group establishment response message sent by the application server; A group communication parameter is obtained in the received dynamic grouping response message. The method of claim 8, wherein the UE obtains the group communication parameters, including: Obtaining, by the UE, a group identifier, where the group identifier is an identifier corresponding to a group for dynamically establishing group communication in the D2D; Sending, by the UE, a dynamic group communication request including the group identifier to a neighboring service function entity; Receiving a dynamic group communication response sent by the neighboring service function entity; Obtaining a group communication parameter corresponding to the group identifier in a dynamic group communication response sent by the received neighboring service function entity. The method according to any one of claims 8 to 10, further comprising: after configuring and performing group communication according to the group communication parameter, further comprising: Receiving a notification message sent by an application server, where the notification message is used to terminate group communication; The group communication is terminated according to the notification message, and the group communication parameters are released. The method of claim 11, wherein before receiving the notification message sent by the application server, the method further comprises: Send group communication termination request. A group communication method, comprising: The neighboring service function entity obtains the group identifier in the received dynamic group request sent by the user equipment UE, where the group identifier is an identifier corresponding to the group for dynamically establishing group communication in the D2D; Determining a group communication parameter corresponding to the group identity, wherein the group communication parameter is a parameter used to dynamically establish a group for device-to-device D2D communication; Transmitting the set of communication parameters to the UE. The method of claim 13, further comprising: after transmitting the set of communication parameters to the UE, Receiving a group communication termination request including a group identifier sent by the application server; When the group communication corresponding to the group identifier is terminated, a group communication termination response is sent to the neighboring service function entity. A group communication device, comprising: Establishing a module, configured to establish a group for device-to-device D2D communication, and transmitting the group identifier to the determining module; a determining module, configured to determine a group identifier corresponding to the group established by the establishing module; Obtaining a module, configured to obtain a group communication parameter corresponding to the group identifier determined by the determining module; And a sending module, configured to send, by the user equipment UE in the group corresponding to the group identifier determined by the determining module, the group communication parameter. The device of claim 15 further comprising: The receiving module is configured to receive a dynamic grouping request sent by the UE, where the dynamic grouping request is used to request to dynamically establish a communication group. The device according to claim 15 or 16, wherein the obtaining module is specifically configured to allocate a group communication parameter corresponding to the group identifier; or send a dynamic group including the group identifier to a neighboring service function entity. The communication request is obtained, and the group communication parameter corresponding to the group identifier is obtained in the received dynamic group communication response message. The device according to any one of claims 15 to 17, wherein the sending module is specifically configured to send the group communication parameter to all UEs in the group corresponding to the group identifier. The device according to any one of claims 15 to 18, wherein the establishing module is further configured to terminate group communication; The sending module is further configured to send, to the UE in the group corresponding to the group identifier, a notification message for terminating the group communication. The apparatus according to claim 19, wherein the sending module is further configured to receive a group communication termination request sent by the UE. The device according to claim 20, wherein the sending module is further configured to send a termination group communication request including a group identifier to the neighboring service function entity; The establishing module is further configured to terminate the group communication corresponding to the group identifier when receiving the termination group communication response sent by the neighboring service function entity. A group communication device, comprising: Obtaining a module for obtaining a group communication parameter, and transmitting the obtained group communication parameter to an execution module, wherein the group communication parameter is a parameter used to dynamically establish a group for device-to-device D2D communication; And an execution module, configured to perform group communication according to the group communication parameter transmitted by the obtaining module. The device of claim 22, further comprising: a sending module, configured to send a dynamic grouping request to the application server, where the dynamic grouping request is used to request to dynamically establish a communication group; a receiving module, configured to receive a dynamic grouping response message sent by the application server; The obtaining module is configured to obtain a group communication parameter in the received dynamic grouping response message. The device according to claim 23, wherein the obtaining module is specifically configured to obtain a group identifier, where the group identifier is an identifier corresponding to a group for dynamically establishing group communication in the D2D; The sending module is further configured to send, to the neighboring service function entity, a dynamic group communication request that includes the group identifier; The receiving module is further configured to receive a dynamic group communication response sent by the neighboring service function entity; The obtaining module is specifically configured to send a dynamic group communication in a received neighboring service function entity. A group communication parameter corresponding to the group identifier is obtained in the letter response. The device according to claim 23 or 24, wherein the receiving module is further configured to receive a notification message sent by an application server, where the notification message is used to terminate group communication; The execution module is further configured to end the group communication according to the notification message, and release the group communication parameter. The apparatus according to claim 25, wherein said transmitting module is further configured to send a group communication termination request. A group communication device, comprising: Obtaining a module, configured to obtain a group identifier in the dynamic group request sent by the received user equipment UE, and transmit the group identifier to a determining module, where the group identifier is used for a group that dynamically establishes group communication in D2D Identification a determining module, configured to determine a group communication parameter corresponding to the group identifier obtained by the obtaining module, wherein the group communication parameter is a parameter used to dynamically establish a group for device-to-device D2D communication; And a sending module, configured to send the group communication parameter determined by the determining module to the UE. The device of claim 27, further comprising: a receiving module, configured to receive a group communication termination request that is sent by the application server and includes a group identifier; The sending module is further configured to send a group communication termination response to the neighboring service function entity when terminating the group communication corresponding to the group identifier. A group communication device, comprising: a memory for storing program instructions; a signal processor, configured to: perform a group for device-to-device D2D communication according to the program instructions stored in the memory; determine a group identifier corresponding to the group; and obtain a group communication parameter corresponding to the group identifier; And an interface, configured to send the group communication parameter to the user equipment UE in the group corresponding to the group identifier. The device of claim 29 wherein: The interface is further configured to receive a dynamic grouping request sent by the UE, where the dynamic grouping is requested Request for a request to dynamically establish a communication group. The device according to claim 29 or 30, wherein the signal processor is specifically configured to allocate a group communication parameter corresponding to the group identifier; or send a dynamic information including the group identifier to a neighboring service function entity. The group communication request is obtained, and the group communication parameter corresponding to the group identifier is obtained in the received dynamic group communication response message. The device according to any one of claims 29 to 31, wherein the interface is specifically configured to send the group communication parameter to all UEs in the group corresponding to the group identifier. The device according to any one of claims 29 to 32, wherein the signal processor is further configured to terminate group communication; The interface is further configured to send a notification message for terminating the group communication to the UE in the group corresponding to the group identifier. The device according to claim 33, wherein the interface is further configured to receive a group communication termination request sent by the UE. The device according to claim 34, wherein the interface is further configured to send a termination group communication request including a group identifier to a neighboring service function entity; The signal processor is further configured to terminate the group communication corresponding to the group identifier when receiving the termination group communication response sent by the neighboring service function entity. A group communication device, comprising: a memory for storing program instructions; a signal processor, configured to: obtain, according to program instructions obtained in the memory, a group communication parameter, wherein the group communication parameter is a parameter used to dynamically establish a group for device-to-device D2D communication; according to the group communication parameter Configure and perform group communication. The device of claim 36, further comprising: An interface, configured to send a dynamic grouping request to the application server, where the dynamic grouping request is used to request to dynamically establish a communication group; and receive a dynamic grouping response message sent by the application server; The signal processor is specifically configured to obtain a group communication parameter in the received dynamic group construction response message. The device according to claim 37, wherein the signal processor is specifically configured to obtain a group identifier, where the group identifier is an identifier corresponding to a group for dynamically establishing group communication in D2D; The interface is further configured to send a dynamic group communication request that includes the group identifier to a neighboring service function entity, and receive a dynamic group communication response sent by the neighboring service function entity; The signal processor is configured to obtain a group communication parameter corresponding to the group identifier in a dynamic group communication response sent by the received neighboring service function entity. The device according to claim 37 or 38, wherein the interface is further configured to receive a notification message sent by an application server, where the notification message is used to terminate group communication; The signal processor is further configured to end the group communication according to the notification message, and release the group communication parameter. The device of claim 39, wherein the interface is further for transmitting a group communication termination request. A group communication device, comprising: a memory for storing program instructions; And a signal processor, configured to: obtain, according to the program instruction obtained in the memory, a group identifier obtained by the received dynamic group request sent by the user equipment UE, where the group identifier is used for a group that dynamically establishes group communication in the D2D. Identifying; group communication parameters corresponding to the group identifier, wherein the group communication parameters are parameters used to dynamically establish a group for device-to-device D2D communication; And an interface, configured to send the group communication parameter to the UE. The device according to claim 41, wherein the interface is further configured to receive a group communication termination request that is sent by the application server and includes a group identifier; and when the group communication corresponding to the group identifier is terminated, to the neighboring The business function entity sends a group communication termination response.

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