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Method for realizing multicast broadcast service switching and related equipment

A multicast broadcast service and user equipment technology, applied in the field of multicast broadcast session management functions and computer-readable storage media, can solve the problem of no user equipment selection, etc., and achieve the effect of small modification and continuity

Active Publication Date: 2021-06-11
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it doesn't do user device selection

Method used

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  • Method for realizing multicast broadcast service switching and related equipment
  • Method for realizing multicast broadcast service switching and related equipment
  • Method for realizing multicast broadcast service switching and related equipment

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Embodiment Construction

[0026] The architecture of 5G MBS is as follows: figure 2 shown. Such as figure 2 As shown, UPF (User Plane Function, user plane function) interacts with SMF (Session Management Function, session management function) through N4 interface, and communicates from MB-UPF (Multicast Broadcast-UPF, multicast broadcast user plane) through MB-N9 interface function) to receive MBS service data, and also send data to NG-RAN (5G radio access network, figure 2RAN node in ) to send MBS service data. Among them, UPF and MB-UPF are logically independent, but they can also share the same UPF entity. The SMF can select MB-SMF (MulticastBroadcast SMF, multicast broadcast session management function) for the MBS session, and can interact with the MB-SMF to obtain information related to the MBS session. SMF and MB-SMF are logically independent, but they can share the same entity. UDR (Unified DataRepository, unified data storage) or NRF (NF (Network Function, network function) RepositoryF...

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Abstract

The embodiment of the invention provides a method for realizing multicast broadcast service switching, a session management function and a multicast broadcast session management function. The method is applied to an SMF corresponding to user equipment, a source base station accessed by the user equipment before switching supports an MBS, the user equipment has established an MBS session in the source base station before switching, a target base station accessed by the user equipment after switching does not support the MBS, and a core network accessed by the target base station supports the MBS, and the method comprises the following steps: acquiring a PDU session associated with the MBS session, wherein the S-NSSAI of the PDU session is the same as the S-NSSAI of the MBS session, and the DNN of the PDU session is the same as the DNN of the MBS session; obtaining an MBS session identifier of the MBS session; obtaining service quality flow information corresponding to the activated MBS session from the MB-SMF according to the MBS session identifier; and according to the service quality flow information corresponding to the activated MBS session, establishing one or more service quality flows corresponding to the activated MBS session on the PDU session.

Description

technical field [0001] The present disclosure relates to the technical field of communications, and in particular, relates to a method for implementing multicast broadcast service switching, a session management function, a multicast broadcast session management function, and a computer-readable storage medium. Background technique [0002] Unicast (Unicast) is a one-to-one communication, and the unicast source (Unicast Source) transmits multiple different contents to different user equipment (User Equipment, UE) via routers, such as figure 1 It is assumed that five different pieces of content are transmitted to UE 1, UE 2, UE 3, UE 4, and UE 5 respectively. The advantage of unicast communication is that different content can be transmitted to different users. [0003] "Multicast (Multicast)" can also be called "multicast", which is to transmit the same content to authorized multiple user equipment, such as figure 1 The multicast source (Multicast Source) in transmits the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/06H04W36/00H04W36/08
CPCH04W4/06H04W36/0007H04W36/0019H04W28/0268H04W36/26
Inventor 熊春山
Owner TENCENT TECH (SHENZHEN) CO LTD