MooD is about enabling the setup of an MBMS user service on the fly and seamlessly migrating an existing service to
an MBMS user service, about judging a unicast service to see if it would be better served by broadcast or unicast, and
about enabling an MBMS Broadcast Session for an ongoing MBMS User Service where previously there was none
Specifically, MooD will investigate and specify enabling a BM-SC to convert a non-MBMS unicast service as an
MBMS User Service (already available in TS 26.346 ) and distributing the USD describing the aforementioned
MBMS User Service to interested UEs. Only services that can be expressed as an MBMS User Service can be
converted (i.e. RTP, DASH, file download including PSS Progressive Download).
In addition, MooD will look into methods that may be able to determine or assist in determining the consumption of a
service, and look into elements that may be able to be decision-makers on determining UC/BC transmission. The level
of specification of this aspect is TBD. MooD will also work towards enable a USD to add an MBMS download or
streaming session to an existing MBMS user service if uptake is high.
It should be noted that MooD will investigate the level of MooD support for UEs supporting pre-R12 MBMS. MooD
will support at least MBMS Broadcast. Support of MBMS Multicast is FFS and is considered lower priority.
The present document covers:
Use cases on the dynamically establishment of MBMS User Services to offload unicast delivery of certain
Use cases for terminating a previously established MBMS User Service due to subsequently decrease in its
Recommended requirements on the BM-SC and UE to support on-demand MBMS.
Gap analyses in the existing TR 26.346 specification for supporting the recommended requirements for MooD
High-level MBMS and unicast network architecture in the context of MooD.
Message sequence diagrams illustrating examples of MooD operation.
Description of solution frameworks that enable MooD operation, including configuration data, necessary
interaction between BM-SC and UE to activate or trigger the MBMS client for reception of newly-established
MBMS User Service, and the reporting of ongoing consumption of the MBMS service to enable measurement of
ongoing demand for that service.