8.5.30 Detecting MBMS service reception inability

25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS

The UE may detect that it becomes incapable of receiving all services it is interested in at any time due to implementation specific constraints as well as upon state transitions, service / session start, service / session stop, service reconfiguration e.g. transfer mode change and preferred frequency layer changes or whenever there are changes concerning the subset of services that it has selected to receive.

When evaluating its MBMS service reception abilities, the UE shall:

1> consider that MBMS services, for which a preferred frequency layer is specified, are available only on the concerned frequency;

1> consider that MBMS services, for which no preferred frequency layer is specified are available on all frequencies;

1> consider non- MBMS services to be available on all frequencies unless specified otherwise in the following;

1> if the variable MBMS_PL_SERVICE_RESTRICTION_INFO_DEDICATED is set to TRUE:

2> consider the established non-MBMS services not to be available on any MBMS preferred frequency.

1> if the IE "MBMS PL Service Restriction Information" is included in the MBMS GENERAL INFORMATION message for the MBMS preferred frequency the UE is considering to select to:

2> consider non-MBMS services not to be available on the concerned MBMS preferred frequency.

If the UE is unable to receive the MBMS and the non-MBMS services it is interested in, the UE shall:

1> detect an MBMS service reception inability.