10.7.1 General

23.2803GPPCommon functional architecture to support mission critical servicesRelease 18Stage 2TS

This subclause defines information flows and procedures for MBMS usage that applies to MC services. MBMS bearers can be used by any MC service for any MC service group. A single MBMS bearer can be used for one or more MC services within a single group or by multiple group communications in parallel.

The following subclauses specify the procedures and information flows for the usage of MBMS transmission that are utilised by the following MC services:

– MCPTT (as specified in 3GPP TS 23.379 [16]);

– MCVideo (as specified in 3GPP TS 23.281 [12]); and

– MCData (as specified in 3GPP TS 23.282 [13]).

MC service specific pre-requisites and resultant behaviour by functional entities in performing these procedures are specified in the respective MC service TSs as listed above.