4 General description

24.5753GPP5G SystemMulticast/Broadcast UE pre-configuration Management Object (MO)Release 18TS

A UE can support multicast and broadcast service (MBS) that is a point-to-multipoint service in which data is transmitted from a single source entity to multiple recipients either to all users in a broadcast service area (MBS broadcast communication), or to users in a multicast group (MBS multicast communication) as defined in 3GPP TS 23.247 [3]. The UE may support pre-configuration of information for services using MBS.

If the UE is pre-configured with information related to services using MBS, the UE can discover and receive data for services by using the provisioned configuration.

The UE pre-configuration contains a list of PLMNs in which for each PLMN, the following information is configured:

a) PLMN ID of the PLMN for which the configuration applies;

b) RAN information based on NR-ARFCN on which the broadcast communication service is available;

c) list of TMGI, on which the broadcast communication service is available, along with the associated user service description (USD) information for the MBS broadcast service. If TMGI and USD information for the MBS user service is configured for the PLMN selected for broadcast communication service, the UE uses the information configured therein to acquire the broadcast communication service;

d) list of TMGI, on which the service announcement for broadcast communication service is available along with the associated USD information for the MBS user service announcement service. If TMGI and USD information for MBS user service announcement is configured for a PLMN selected for broadcast communication service, the UE uses the information configured therein to acquire the service announcement for broadcast communication service; and

e) PDU session information based on DNN and S-NSSAI pair associated with an MBS session.