Content for TR 23.741 Word version: 13.0.0
5 Key Issues p. 7
5.1 Key Issue 1 - Establishment of MBMS bearers using a list of cell identities or other area information p. 7
5.2 Key Issue 2 - Identification of whether an increased flexibility of MBMS congestion management is useful or necessary p. 8
6 Solutions p. 9
6.1 Solution 1: ECGI list is passed among GCS AS and MBMS nodes: BM-SC maps ECGI list to SAI list p. 9
6.1.1 Description p. 9
6.1.1.1 Procedures p. 9
6.1.2 Impacts on existing nodes and functionality p. 11
6.1.3 Solution Evaluation p. 11
6.2 Solution 2: ECGI list is passed between GCS AS and MBMS nodes: BM-SC, MBMS GW and MME pass an ECGI list downstream p. 12
6.2.1 Description p. 12
6.2.2 Procedures p. 13
6.2.3 Impacts on existing nodes and functionality p. 16
6.2.4 Solution Evaluation p. 16
6.3 Solution 3: Route MBMS Session Start using SAI derived from TAI; describe broadcast area with ECGIs p. 17
6.3.1 Description p. 17
6.3.2 Procedures p. 19
6.3.3 Impacts on existing nodes and functionality p. 20
6.3.4 Solution Evaluation p. 20
6.4 Solution 4: Use of MBSFN Area Ids and/or ECGI lists for requesting MBMS service p. 21
6.4.1 Description p. 21
6.4.1.1 Summary of capabilities p. 21
6.4.1.2 Procedures p. 21
6.4.2 Impacts on existing nodes p. 23
6.4.3 Solution evaluation p. 23
6.5 Solution 5: Congestion signalling - informative only, as an example p. 24
7 Overall Evaluation p. 26
8 Conclusions p. 26
$ Change History p. 27
