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TR 23.780 (SA6)
Study on MBMS Usage
for Mission Critical Communication Services

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for a better overview, the Table of Contents (ToC) is reproduced
V14.0.0 (Wzip)  2016/12  93 p.

Rapporteur:  Mr. Trank, Magnus

The objective of this technical report is to study how mission critical communication services utilize MBMS.

full Table of Contents for  TR 23.780  Word version:   14.0.0

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1  ScopeWord-p. 9
2  ReferencesWord-p. 9
3  Definitions and abbreviationsWord-p. 10
4  Assumptions and architectural requirementsWord-p. 11
4.1  GeneralWord-p. 11
4.2  AssumptionsWord-p. 11
4.3  High level reference diagramWord-p. 11
4.4  Architectural requirementsWord-p. 14
5  Key issuesWord-p. 14
5.1  Key issue 1 - Service continuityWord-p. 14
5.2  Key issue 2 - Service announcementWord-p. 15
5.3  Key issue 3 - MBMS bearer reception acknowledgementWord-p. 16
5.4  Key issue 4 - Handling resource shortageWord-p. 16
5.5  Key issue 5 - Performance (KPI 3)Word-p. 16
5.6  Key issue 6 - Usage of Forward Error Correction (FEC)Word-p. 17
5.7  Key issue 7 - MBMS bearer management involving multiple MCPTT serversWord-p. 17
5.8  Key issue 8 - Cohesive MBMS operationWord-p. 18
5.9  Key issue 9 - Notification on MBMS bearer activation resultWord-p. 19
5.10  Key issue 10 - Header compression of MBMS dataWord-p. 20
5.11  Key issue 11 - Handling MBMS bearer suspensionWord-p. 20
5.12  Key issue 12 - MBMS media delivery while UE in idle modeWord-p. 21
5.13  Key issue 13 - Location information reportingWord-p. 21
5.14  Key issue 14 - MBMS usage in roaming, interconnect and migration scenariosWord-p. 22
5.15  Key issue 15 - Packet drop due to IP Differentiated ServicesWord-p. 22
5.16  Key issue 16 - MBMS bearer usage across different MC servicesWord-p. 22
6  SolutionsWord-p. 23
6.1  Solution 1-1: Service continuity between MBSFN areas used by different MBMS bearersWord-p. 23
6.2  Solution 1-2: Service continuity with a UE-to-Network relayWord-p. 25
6.3  Solution 1-3: Service continuityWord-p. 27
6.4  Solution 2-1: MBMS bearer announcement over MBMS bearerWord-p. 29
6.5  Solution 3-1: MBMS bearer quality detectionWord-p. 31
6.6  Solution 5-1: Enhanced MCPTT group call setup procedure with MBMS bearerWord-p. 32
6.7  Solution 6-1: FEC for Mission Critical ServicesWord-p. 35
6.8  Solution 6-2: Mission Critical Server-based FECWord-p. 39
6.9  Solution 7-1: Service area owning MC service server distributes mediaUpWord-p. 41
6.10  Solution 7-2: MBMS bearer management by MC service server (controlling role) with multiple MC service servers involvedWord-p. 43
6.11  Solution 8-1: GCS AS to indicate the preferred MBMS mechanism to the MCEUpWord-p. 45
6.12  Solution 8-2: MCE derives the MBMS mechanism with the interaction with the eNB and the UEWord-p. 47
6.13  Solution 9-1: Notification of MBMS bearer activation resultUpWord-p. 50
6.14  Solution 10-1: Header compression of MBMS dataWord-p. 52
6.15  Solution 10-2: header compression function within the BM-SCWord-p. 55
6.16  Solution 11-1: Reporting of MBMS bearer suspension.UpWord-p. 58
6.17  Solution 11-2: MBMS suspension notificationWord-p. 59
6.18  Solution 12-1: Media delivery for MC service clients in MBMS MC receive-only modeWord-p. 61
6.19  Solution 13-1: Location reportingWord-p. 63
6.20  Solution 14-1: MBMS when roamingWord-p. 67
6.21  Solution 15-1: Usage of IP Differentiated ServicesWord-p. 68
6.22  Solution 16-1: MBMS bearer usage across different MC servicesWord-p. 68
7  Overall evaluationWord-p. 74
8  ConclusionsWord-p. 78
8.1  GeneralWord-p. 78
8.2  Conclusions on key issuesWord-p. 78
8.3  Normative Rel-14 workWord-p. 80
A  Performance evaluation of solution 6-1 for MCPTTWord-p. 82
A.1  MBMS Bearer Simulation ModelWord-p. 82
A.2  Application layer FEC used for evaluationWord-p. 87
A.3  Simulation ResultsWord-p. 89
B  Interest of FEC for MCData file distribution capabilityWord-p. 91
C  Change historyWord-p. 93

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