Communication processing method and apparatus, communication device, and readable storage medium

Abstract

The embodiment of the application provides a communication processing method and device, communication equipment and a readable storage medium, and the method comprises the steps that a multicast data message is sent to a radio access network element through an MBS session, group information is carried in the multicast data message, and the group information is used for indicating a terminal receiving a multicast message sent by the radio access network element through the MBS session.

Description

Technical Field

[0001] This application relates to the field of communication technology, specifically to a communication processing method, apparatus, communication device, and readable storage medium. Background Technology

[0002] Multicast messages within a 5G Local Area Network (LAN) may be received from the N6 / N19 interface and sent to members UE A, UE C, UE D, and UE E in Group 1 currently being served by the Session Management Function (SMF). Figure 1 As shown in the figure, how the User Plane Function (UPF) can transmit multicast messages to members in Group 1 through a Multicast and Broadcast Service (MBS) session is an urgent problem to be solved. Summary of the Invention

[0003] This application provides a communication processing method, apparatus, communication device, and readable storage medium to solve the problem of how to send multicast messages to the required terminals through an MBS session.

[0004] Firstly, a communication processing method is provided for application in a UPF, including:

[0005] Multicast data packets are sent to radio access network elements through an MBS session. The multicast data packets carry group information, which is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session.

[0006] Optionally, the group information includes at least one of the following: group member identifiers; group identifiers; a list of group identifiers and group member identifiers;

[0007] The group identifier is used to determine the group member identifier, and the group member identifier is used to perform context association mapping with the MBS session so that the radio access network element sends multicast messages to the terminal corresponding to the group member identifier through the MBS session.

[0008] Optionally, the method further includes:

[0009] The group information is obtained from the session management function.

[0010] Optionally, the method further includes:

[0011] Retrieve MBS session establishment or revision request;

[0012] The MBS session establishment or revision request carries a PDR and / or a FAR. The PDR carries data filtering conditions and / or data detection conditions, which include one or more of the following: a group identifier, the IP address corresponding to the group identifier, and the media access control layer address corresponding to the group identifier. The FAR carries a group message transmission indication.

[0013] Optionally, the method further includes:

[0014] The group information is added to the GTP-U header of the GPRS tunneling protocol in the multicast data packet.

[0015] Optionally, the group member identifier is the session identifier corresponding to the group member session.

[0016] Secondly, a communication processing method is provided, applied to a wireless access network element, including:

[0017] Receive multicast data packets sent through an MBS session, wherein the multicast data packets carry group information, and the group information is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session;

[0018] The multicast message is sent to the terminal corresponding to the group information through the MBS session.

[0019] Optionally, the group information includes one of the following: group member identifier; group identifier; group identifier and group member list.

[0020] Optionally, sending multicast messages to the terminal corresponding to the group information through the MBS session includes:

[0021] Based on the group information, determine the corresponding group member identifier;

[0022] Perform a context-associative mapping between the MBS session and the group member identifier;

[0023] The MBS session sends multicast messages to the terminal corresponding to the group member identifier.

[0024] Optionally, the step of context-associating the MBS session with the group member identifier includes:

[0025] Detect the GTP-U header of the multicast data packet;

[0026] If the GTP-U header contains a group member identifier, then the MBS session is context-associated with the group member identifier.

[0027] Optionally, the group member identifier is the session identifier corresponding to the group member session.

[0028] Thirdly, a communication processing device is provided for use in a UPF, comprising:

[0029] The first sending module is used to send multicast data packets to a radio access network element through an MBS session. The multicast data packets carry group information, which is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session.

[0030] Fourthly, a communication processing apparatus is provided, applied to a wireless access network element, comprising:

[0031] The first receiving module is configured to receive multicast data packets sent through an MBS session, wherein the multicast data packets carry group information, and the group information is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session.

[0032] The second sending module is used to send multicast messages to the terminal corresponding to the group information through the MBS session.

[0033] Fifthly, a communication device is provided, including a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method described in the first or second aspect.

[0034] A sixth aspect provides a readable storage medium on which a program or instructions are stored, which, when executed by a processor, implement the steps of the method described in the first or second aspect.

[0035] In this embodiment, the UPF sends multicast data packets to the radio access network element through the MBS session. The multicast data packets carry group information, which is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session. This allows the radio access network element to send the multicast message to the terminal corresponding to the group information through the MBS session, thus enabling 5G LAN multicast communication through the MBS session. Attached Figure Description

[0036] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0037] Figure 1This is a diagram illustrating the multicast messages received by N6 / N19;

[0038] Figure 2 This is a flowchart of a communication processing method provided in an embodiment of this application;

[0039] Figure 3 This is a flowchart of another communication processing method provided in the embodiments of this application;

[0040] Figure 4 This is one of the flowcharts for implementing 5G LAN multicast communication through MBS sessions provided in the embodiments of this application;

[0041] Figure 5 This is the second flowchart of 5G LAN multicast communication implemented through MBS session provided in the embodiments of this application;

[0042] Figure 6 This is a schematic diagram of a communication processing device provided in an embodiment of this application;

[0043] Figure 7 This is a schematic diagram of another communication processing device provided in an embodiment of this application;

[0044] Figure 8 This is a schematic diagram of the communication device provided in the embodiments of this application. Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] The term "comprising," and any variations thereof, used in the specification and claims of this application, is intended to cover a non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus. Furthermore, the use of "and / or" in the specification and claims indicates at least one of the connected objects, such as A and / or B, indicating the inclusion of A alone, B alone, or both A and B.

[0047] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0048] See Figure 2 This application provides a communication processing method applied to UPF, and the specific steps include: step 201.

[0049] Step 201: Send a multicast data packet to the radio access network element through the Multicast Broadcast Service (MBS) session. The multicast data packet carries group information, which is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session.

[0050] It is understandable that each terminal has a corresponding group member identifier. For example, group 1 includes terminal A, terminal B and terminal C, and group 2 includes terminal D, terminal E and terminal F. A, B and C are the group member identifiers in group 1, and D, E and F are the group member identifiers in group 2.

[0051] Optionally, the group information includes one of the following: group member identifiers; group identifiers; group identifiers and a list of group members;

[0052] The group identifier is used to determine the group member identifier, and the group member identifier is used to perform context association mapping with the MBS session so that the radio access network element sends multicast messages to the terminal corresponding to the group member identifier through the MBS session.

[0053] It is understandable that if the group information includes group member identifiers, then the group member identifiers can be obtained directly from the group information.

[0054] If the group information includes a group identifier, then the identifiers of each group member in the group corresponding to that group identifier can be obtained based on the group identifier and information obtained through other means (such as a list of group members).

[0055] If the group information includes a group identifier and a list of group members, then the identifiers of each group member in the group corresponding to that group identifier can be directly determined based on the group identifier and the list of group members.

[0056] Optionally, the group identifier is a multicast address, and the group member identifier is the session identifier corresponding to the group member session (e.g., PDU Session ID).

[0057] In one embodiment of this application, the method further includes:

[0058] The group information is obtained from the Session Management Function (SMF).

[0059] In one embodiment of this application, the method further includes:

[0060] Retrieve MBS session establishment or revision request;

[0061] The MBS session establishment or revision request carries a Packet Detection Rule (PDR) and / or a Forwarding Action Rule (FAR). The PDR carries data filtering conditions and / or data detection conditions, which include one or more of the following: a group identifier, the IP address corresponding to the group identifier, and a Medium Access Control (MAC) address. The FAR carries a group message transmission indication.

[0062] The packet detection rules mentioned above can also be described as message detection rules, and the forwarding operation rules can also be described as forwarding behavior rules.

[0063] In one embodiment of this application, the method further includes:

[0064] The group information is added to the GTP-U header of the multicast data packet.

[0065] Specifically, the group information is added to the GTP-U header of the multicast data packet, including:

[0066] Obtain the group member identifiers of all group members corresponding to the group identifier;

[0067] Add the group identifier and / or the group member identifiers of all group members to the GTP-U header of the multicast data packet.

[0068] In this embodiment, the UPF sends multicast data packets to the radio access network element through the MBS session. The multicast data packets carry group information, which is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session. This allows the radio access network element to send the multicast message to the terminal corresponding to the group information through the MBS session, thus enabling 5G LAN multicast communication through the MBS session.

[0069] See Figure 3This application provides a communication processing method applied to a radio access network element, such as a next-generation radio access network (NG-RAN) element. The specific steps include: step 301 and step 302.

[0070] Step 301: Receive a multicast data packet sent through the MBS session, wherein the multicast data packet carries group information, and the group information is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session;

[0071] For example, a wireless access network element receives multicast data packets sent by the UPF through an MBS session.

[0072] Optionally, the group information includes one of the following: group member identifier; group identifier; group identifier and group member list.

[0073] Step 302: Send the multicast message to the terminal corresponding to the group information through the MBS session.

[0074] In one embodiment of this application, sending multicast messages to the terminal corresponding to the group information through the MBS session includes:

[0075] Based on the group information, determine the corresponding group member identifier;

[0076] Perform a context-associative mapping between the MBS session and the group member identifier;

[0077] The MBS session sends multicast messages to the terminal corresponding to the group member identifier.

[0078] It is understandable that if the group information includes group member identifiers, the wireless access network element can directly obtain the group member identifiers based on the group information.

[0079] If the group information includes a group identifier, the radio access network element can obtain the identifiers of each group member in the group corresponding to that group identifier based on the group identifier and information obtained through other means (such as a locally stored list of group members).

[0080] If the group information includes a group identifier and a list of group members, the wireless access network element can directly determine the identifiers of each group member in the group corresponding to that group identifier based on the group identifier and the list of group members.

[0081] In one embodiment of this application, the step of performing context-associated mapping between the MBS session and the group member identifier includes:

[0082] Detect the User Plane Part of GPRS Tunneling Protocol (GTP-U) header of the multicast data packet;

[0083] If the GTP-U header contains a group member identifier, then the MBS session is context-associated with the group member identifier.

[0084] In one embodiment of this application, the group member identifier is the session identifier corresponding to the group member session.

[0085] In this embodiment of the application, the wireless access network element can send multicast messages to the terminal corresponding to the group information through the MBS session, thus enabling 5G LAN multicast communication through the MBS session.

[0086] See Figure 4 The specific process is as follows:

[0087] (1) SMF synchronizes group information to UPF.

[0088] Optionally, the group information includes one of the following: group member identifier; group identifier; group identifier and group member list. For example, the group information includes: {multicast address, group member identifier}, where the group member identifier at least contains the PDUSESSION ID corresponding to the group member session.

[0089] (2) MBS Session (or described as MBS PDU Session):

[0090] Downlink PDR / FAR:

[0091] PDR: {Source interface: 5G VN internal, Destination address: Multicast address IP_Add1}.

[0092] FAR: {Destination interface: access, N3 / N9 tunnel information related to LAN-MBS session, multicast indicator}.

[0093] When the action in FAR is Multicast, it indicates that the UPF needs to extract the PDU session IDs of all group members corresponding to the multicast address based on the group information. At the same time, the PDU session IDs of all group members are added to the GTP-U header on the N3 interface.

[0094] (3) NG-RAN processing method:

[0095] When NG-RAN receives multicast data packets sent by MBS sessions and detects the GTP-U header, if it finds that the GTP-U header contains the PDU session IDs of a certain group, NG-RAN will only perform context association mapping between the MBS session and these PDU session IDs during the broadcast message transmission process, and then send it to the terminal corresponding to these PDU session IDs.

[0096] See Figure 5 The specific steps include:

[0097] Step 1: Group information synchronization.

[0098] Optionally, the group information includes one of the following: group member identifier; group identifier; group identifier and group member list, for example, the group information includes: group identity and group member list.

[0099] Step 2: SMF sends an MBS session establishment / revision request to UPF.

[0100] The MBS session establishment / revision request carries a PDR and / or FAR.

[0101] Optionally, the PDR carries a group identifier or the IP or MAC address corresponding to the group identifier.

[0102] Optionally, the FAR carries a group message transmission indicator.

[0103] Step 3: UPF sends a session establishment / revision response to SMF.

[0104] Step 4: The UPF detects relevant data according to the PDR or FAR rules of the MBS session and processes the data according to the group message transmission instructions in the FAR. Specifically, the UPF needs to extract all group member identifiers synchronized from the SMF based on the group information and add these group member identifiers to the GTP-U header of the N3 interface.

[0105] During the establishment and revision of the MBS session, the SMF sets data filtering and / or detection conditions in the downlink PDR of the MBS session, including one of the following: group identifier, the IP address corresponding to the group identifier, or the MAC address. In the FAR corresponding to the downlink PDR, a group message forwarding identifier is added to indicate that the UPF needs to extract the PDU session IDs of all group members corresponding to the group identifier based on the group information. At the same time, the PDU session IDs of all group members are added to the GTP-U header on the N3 interface.

[0106] For example, Figure 1 The multicast address of the multicast message is IP_Add1, and the terminal members in the group are UE A, UE C, UE D, and UE E. In this MBS session, the multicast message is sent to UE A, UE C, UE D, and UE E, but does not need to be sent to UE B.

[0107] PDR:{Source interface:5G VN internal,destination address:multicast address IP_Add1}.

[0108] FAR:{Destination interface:access, N3 / N9 tunnel information related to LAN-MBS session, Multicast indicator).

[0109] Step 5: The UPF sends a GTP-U data packet to the NG-RAN. The GTP-U header contains the group member identifier.

[0110] Step 6: NG-RAN receives multicast data packets sent by the MBS session, detects the GTP-U header, and when it finds that the GTP-U header contains a group member identifier, NG-RAN performs context association mapping between the MBS session and these group member identifiers during the transmission process and sends the data packet to the terminal corresponding to the group member identifier.

[0111] Step 7: NG-RAN sends air interface data packets to the terminal.

[0112] See Figure 6 This application provides a communication processing device applied to a UPF. The device 600 includes:

[0113] The first sending module 601 is used to send multicast data packets to a radio access network element through an MBS session. The multicast data packets carry group information, which is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session.

[0114] Optionally, the group identifier is used to determine the group member identifier, and the group member identifier is used to perform context association mapping with the MBS session, so that the radio access network element sends multicast messages to the terminal corresponding to the group member identifier through the MBS session.

[0115] In one embodiment of this application, the device 600 further includes:

[0116] The first acquisition module is used to acquire the group information from the SMF.

[0117] In one embodiment of this application, the device 600 further includes:

[0118] The second acquisition module is used to acquire MBS session establishment or revision requests;

[0119] The MBS session establishment or revision request carries a PDR and / or a FAR. The PDR carries data filtering conditions and / or data detection conditions, which include one or more of the following: a group identifier, the IP address corresponding to the group identifier, and the media access control layer address corresponding to the group identifier. The FAR carries a group message transmission indication.

[0120] In one embodiment of this application, the device 600 further includes:

[0121] The processing module is used to add the group information into the GTP-U header of the multicast data packet.

[0122] In one embodiment of this application, the group member identifier is the session identifier corresponding to the group member session.

[0123] The apparatus provided in this application embodiment can achieve... Figure 2 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0124] See Figure 7 This application provides a communication processing apparatus for use in a wireless access network element. The apparatus 700 includes:

[0125] The first receiving module 701 is used to receive multicast data packets sent through an MBS session, wherein the multicast data packets carry group information, and the group information is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session.

[0126] The second sending module 702 is used to send multicast messages to the terminal corresponding to the group information through the MBS session.

[0127] In one embodiment of this application, the second sending module 702 is further configured to: determine the corresponding group member identifier based on the group information; perform context association mapping between the MBS session and the group member identifier; and send multicast messages to the terminal corresponding to the group member identifier through the MBS session.

[0128] In one embodiment of this application, the second sending module 702 is further configured to: detect the GTP-U header of the multicast data packet; if the GTP-U header contains a group member identifier, then perform context association mapping between the MBS session and the group member identifier.

[0129] In one embodiment of this application, the group member identifier is the session identifier corresponding to the group member session.

[0130] The apparatus provided in this application embodiment can achieve... Figure 3 The various processes implemented in the method embodiments shown achieve the same technical effects, and will not be described again here to avoid repetition.

[0131] like Figure 8 As shown, this application embodiment also provides a communication device 800, including a processor 801, a memory 802, and a program or instructions stored in the memory 802 and executable on the processor 801. When the program or instructions are executed by the processor 801, they implement the above-mentioned... Figure 2 or Figure 3 The various processes of the illustrated method embodiments can achieve the same technical effect. To avoid repetition, they will not be described again here.

[0132] This application embodiment also provides a readable storage medium storing a program or instructions that, when executed by a processor, implement the above-described functionality. Figure 2 or Figure 3 The various processes of the method embodiments shown can achieve the same technical effect, and will not be described again here to avoid repetition.

[0133] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0134] The steps of the methods or algorithms described in this application can be implemented in hardware or by executing software instructions on a processor. The software instructions can consist of corresponding software modules, which can be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, portable hard disk, read-only optical disk, or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can be housed in an ASIC. Alternatively, the ASIC can be housed in a core network interface device. Of course, the processor and storage medium can also exist as discrete components in the core network interface device.

[0135] Those skilled in the art will recognize that, in one or more of the examples above, the functions described in this application can be implemented using hardware, software, firmware, or any combination thereof. When implemented in software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or code on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein communication media include any medium that facilitates the transfer of a computer program from one place to another. Storage media can be any available medium accessible to a general-purpose or special-purpose computer.

[0136] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this application. It should be understood that the above description is only a specific embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made on the basis of the technical solution of this application should be included within the scope of protection of this application.

[0137] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, embodiments of this application can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of this application can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0138] This application describes embodiments of methods, apparatus (systems), and computer program products according to embodiments of this application with reference to flowchart illustrations and / or block diagrams. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0139] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0140] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0141] Obviously, those skilled in the art can make various modifications and variations to the embodiments of this application without departing from the spirit and scope of this application. Therefore, if these modifications and variations to the embodiments of this application fall within the scope of the claims of this application and their equivalents, this application also intends to include these modifications and variations.

Claims

1. A communication processing method applied to User Plane Function (UPF), characterized in that, include: Multicast data packets are sent to radio access network elements through a Multicast Broadcast Service (MBS) session. The multicast data packets carry group information, which is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session. The method further includes: The group information is added to the GTP-U header of the GPRS tunneling protocol in the multicast data packet; The group information includes a group member identifier, which is used for context association mapping with the MBS session, so that the radio access network element sends multicast messages to the terminal corresponding to the group member identifier through the MBS session; the group member identifier is the session identifier corresponding to the group member session.

2. The method according to claim 1, characterized in that, The group information also includes at least one of the following: a group identifier; a list of group identifiers and group member identifiers; The group identifier is used to identify group members.

3. The method according to claim 1, characterized in that, The method further includes: The group information is obtained from the session management function.

4. The method according to claim 1, characterized in that, The method further includes: Retrieve MBS session establishment or revision request; The MBS session establishment or revision request carries a packet detection rule (PDR) and / or a forwarding operation rule (FAR). The PDR carries data filtering conditions and / or data detection conditions, which include one or more of the following: a group identifier, the IP address corresponding to the group identifier, and the media access control layer address corresponding to the group identifier. The FAR carries a group message transmission indication.

5. A communication processing method applied to a wireless access network element, characterized in that, include: The system receives multicast data packets sent through an MBS session. The multicast data packets carry group information, which is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session. The group information includes a group member identifier, which is the session identifier corresponding to the group member session. The MBS session is used to send multicast messages to the terminal corresponding to the group information. Sending multicast messages to the terminal corresponding to the group information through the MBS session includes: Based on the group information, determine the corresponding group member identifier; Perform a context-associative mapping between the MBS session and the group member identifier; The MBS session is used to send multicast messages to the terminal corresponding to the group member identifier. The step of context-associating the MBS session with the group member identifier includes: Detect the GTP-U header of the multicast data packet; If the GTP-U header contains a group member identifier, then the MBS session is context-associated with the group member identifier.

6. The method according to claim 5, characterized in that, The group information also includes one of the following: group identifier; group identifier and group member list.

7. A communication processing device applied to a UPF, characterized in that, include: The first sending module is used to send multicast data packets to a radio access network element through an MBS session. The multicast data packets carry group information, which is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session. The processing module is used to add the group information into the GTP-U header of the GPRS tunneling protocol of the multicast data packet; The group information includes a group member identifier, which is used for context association mapping with the MBS session, so that the radio access network element sends multicast messages to the terminal corresponding to the group member identifier through the MBS session; the group member identifier is the session identifier corresponding to the group member session.

8. A communication processing apparatus, applied to a wireless access network element, characterized in that, include: The first receiving module is configured to receive multicast data packets sent through an MBS session. The multicast data packets carry group information, which is used to indicate the terminal receiving the multicast message sent by the radio access network element through the MBS session. The group information includes a group member identifier, which is a session identifier corresponding to the group member session. The second sending module is used to send multicast messages to the terminal corresponding to the group information through the MBS session; Sending multicast messages to the terminal corresponding to the group information through the MBS session includes: Based on the group information, determine the corresponding group member identifier; Perform a context-associative mapping between the MBS session and the group member identifier; The MBS session is used to send multicast messages to the terminal corresponding to the group member identifier. The step of context-associating the MBS session with the group member identifier includes: Detect the GTP-U header of the multicast data packet; If the GTP-U header contains a group member identifier, then the MBS session is context-associated with the group member identifier.

9. A communication device, characterized in that, It includes a processor, a memory, and a program or instructions stored in the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the steps of the method as described in any one of claims 1 to 6.

10. A readable storage medium, characterized in that, The readable storage medium stores a program or instructions that, when executed by a processor, implement the steps of the method as described in any one of claims 1 to 6.

Images