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TR 23.741 (SA2)
Study on enhancements to
Multimedia Broadcast/Multicast Service (MBMS)
for LTE

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Rapporteur:  Mr. Wong, Curt

The objective of this Technical Report is to study and specify potential modifications to the MBMS/GCSE_LTE architectures and/or procedures as specified in TS 23.246 and TS 23.468 to enable the following improvements and enhancements:
  • to allow the establishment of MBMS bearers using target area information, as distinct from using an MBMS Service Area;
  • to MBMS congestion handling;
  • if seen to be needed, to possible MBMS roaming scenarios;
  • as required by the MCPTT application work.

full Table of Contents for  TR 23.741  Word version:   13.0.0

 

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1  ScopeWord-p. 6
2  References
3  Definitions and abbreviationsWord-p. 7
4  Architectural Assumptions
5  Key Issues
6  SolutionsWord-p. 9
6.1  Solution 1: ECGI list is passed among GCS AS and MBMS nodes: BM-SC maps ECGI list to SAI list
6.2  Solution 2: ECGI list is passed between GCS AS and MBMS nodes: BM-SC, MBMS GW and MME pass an ECGI list downstreamWord-p. 12
6.3  Solution 3: Route MBMS Session Start using SAI derived from TAI; describe broadcast area with ECGIsWord-p. 17
6.4  Solution 4: Use of MBSFN Area Ids and/or ECGI lists for requesting MBMS serviceWord-p. 21
6.5  Solution 5: Congestion signalling - informative only, as an exampleWord-p. 24
7  Overall Evaluation
8  ConclusionsUp
A  Change historyWord-p. 27

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