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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 unified data management functions and computer-readable storage media, can solve the problems of reducing or failing to realize the number of associated PDUSessions, and achieve the effect of maintaining continuity and saving resources

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

In this way, MBS Sessions with different combinations of S-NSSAI and DNN still need to be associated with multiple PDU Sessions, and it is still impossible to reduce the number of associated PDU Sessions

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

[0033] 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 with MB-UPF (Multicast Broadcast UPF, multicast broadcast user plane function) through MB-N9 interface ) to receive MBS service data, and also to NG-RAN ( figure 2 RAN 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 (Multicast Broadcast 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 Data Repository, unified data storage) or NRF (NF (Network Function, network function) Repository Function, network storage func...

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Abstract

The embodiment of the invention provides a method for realizing multicast broadcast service switching and related equipment. The method is applied to the user equipment, a source base station accessed by the user equipment before switching supports MBS, and the user equipment activates MBS session in the source base station before switching. The method comprises: receiving a handover completion indication sent by a target base station, wherein the handover completion indication is used for indicating that user equipment has been handed over to the target base station; if it is determined that the target base station does not support the MBS, a DPU session is triggered to be established on the side of the target base station, the S-NSSAI of the PDU session is the same as the S-NSSAI of the activated MBS session, and the DNN of the PDU session is the same as the DNN of the activated MBS session, so that one or more service quality streams corresponding to the activated MBS session are established on the PDU session.

Description

technical field [0001] The present disclosure relates to the field of communication technologies, and in particular, relates to a method for implementing multicast broadcast service switching, user equipment, a session management function, a multicast broadcast unified data management function, and a computer-readable storage medium. Background technique [0002] Unicast (Unicast) is one-to-one communication, and the Unicast Source (Unicast Source) transmits multiple different contents to different user equipment (User Equipment) via the router, 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 Sourc...

Claims

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Application Information

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IPC IPC(8): H04W4/06H04W36/00H04W36/08
CPCH04W4/06H04W36/08H04W36/0007H04W36/0064H04W36/0019H04W36/0011
Inventor 熊春山
Owner TENCENT TECH (SHENZHEN) CO LTD
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