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Multicast service management method and device

A technology of multicast service and management method, applied in the field of multicast service management method and equipment, capable of solving problems such as impact on network resources

Active Publication Date: 2020-11-10
CHINA MOBILE COMM LTD RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] An object of the embodiment of the present invention is to provide a multicast service management method and equipment to solve the problem that the terminal will affect the network resources during the switching process

Method used

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  • Multicast service management method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0360] Embodiment 1: Based on a network architecture similar to EPS eMBMS

[0361] see Figure 6 ,exist Figure 6 In the network architecture shown:

[0362] (1) Multicast (Multimedia Broadcast, MB)-access and mobility management function (Acess and Mobility Management Function, AMF) is responsible for MB-session management function (Session Management Function, SMF) and next generation (next generation, NG)-wireless access Forwarding of session management messages between radio access networks (RANs);

[0363] (2) MB-SMF is a dedicated SMF for MBMS, corresponding to the MBMS-gateway (Gateway, GW) control plane, responsible for: MBMS bearer session creation / modification / release, Internet Protocol (Internet Protocol, IP) multicast address allocation, etc.

[0364] (3) MB-UPF is a dedicated MBMS user plane function (User plane function, UPF), corresponding to the MBMS-GW user plane, responsible for: sending MBMS user plane data to the Evolved UMTS Terrestrial Radio Access Net...

Embodiment 2

[0413] Embodiment 2: MBMS network architecture based on 5G core network (5GC)

[0414] see Figure 11 ,exist Figure 11 In the network architecture shown:

[0415] (1) When the application function (Application function, AF) requires the 5GC to establish a group session (groupsession), the NEF selects the group (Group)-SMF, hereinafter referred to as (G-SMF).

[0416] (2) The AF is responsible for the service announcement: inform the UE of the necessary information of the multicast service (such as TMGI and service start time) through the application layer message.

[0417] (3) G-SMF selects a specific AMF to support message interaction between G-SMF and RAN;

[0418] (4) The G-SMF selects a UPF and informs the AF of the relevant information of the UPF.

[0419] see Figure 12 ,Specific steps are as follows:

[0420] Step 1: The UE measures and determines the target cell list, and reports the multicast related information to the AF through an application layer message. ...

Embodiment 3

[0437] Embodiment 3: Receive multicast data through EPS, send / receive unicast data through 5GS, see Figure 13 .

[0438] In the E-UTRAN network, the UE is in a receive-only mode (Receive-only mode, ROM), that is, it can directly receive the MBMS multicast service without registering to the Evolved Packet System (Evolved Packet System, EPS) network.

[0439] UE knows the MBMS service service area. If the UE finds that there is no E-UTRAN within the coverage of multiple target gNBs to support the UE's multicast reception preference, it will trigger the App server to establish a multicast session with some eNBs. The App server will feed back the establishment status to the UE through an application layer message.

[0440] When reporting the measurement results, the UE only reports the measurement results of the target gNB that can ensure E-UTRAN multicast reception to the source gNB.

[0441] During handover, the source gNB will comprehensively consider the MBMS support of th...

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Abstract

Provided are a multicast service management method and device. The method comprises the following steps of sending first information to a source node, with the first information being used for assisting the source node in determining a target node, and the first information comprising information about multicast service reception preferences of a terminal or a terminal group where the terminal islocated. In the embodiment of the invention, MBMS service data can still be received in a multicast mode within the coverage range of the target node after the terminal is switched, and the problem oflow resource utilization rate is avoided.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of communications, and in particular to a multicast service management method and device. Background technique [0002] In order to effectively utilize mobile network resources, an enhanced multimedia broadcast multicast service (evolvedMultimedia Broadcast Multicast Service, eMBMS) is proposed. This service is a technology that transmits data from one data source to multiple target mobile terminals, and realizes Sharing improves the utilization of network resources, especially air interface resources. [0003] eMBMS supports two transmission modes in the evolved UMTS Terrestrial Radio Access Network (Evolved UMTS Terrestrial Radio Access Network, E-UTRAN): MBMS Single Frequency Network (MBMS Single Frequency Network, MBSFN) transmission mode and single-cell point-to-multipoint transmission (Single Cell Point To Multipoint, SC-PTM). The MBSFN transmission method is to perform sync...

Claims

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Application Information

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IPC IPC(8): H04W36/00H04W36/24H04W76/11
CPCH04W36/0007H04W36/0083H04W36/24H04W76/11
Inventor 徐晓东李娜胡南刘亮李男
Owner CHINA MOBILE COMM LTD RES INST
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