C.4 Location-dependent Object Distribution Method using push-based ingest
26.5023GPP5G Multicast-Broadcast User Service ArchitectureRelease 17TS
C.4.1 Location-dependent DASH content distribution using push-based ingest
A location-dependent MBS Serivce allows regional content variants to be distributed to different MBS Service Areas within the scope of a common MBS Session. The UE receives the content variant appropriate to its current location. This feature allows realization of MBS User Services such as local traffic information.
Figure C.4.1-1: Location-dependent DASH content distribution using push-based ingest
Two MBS Distribution Sessions with different Target service areas are provisioned. Each MBS Distribution Session has a different Object ingest base URL so that two content sources can push different media objects to the two MBS Distribution Sessions. Each content source uses a different DASH presentation manifest.
The MBSF provisions a different MBS Session in the MB-SMF for each MBS Distribution Session and arranges for the user plane traffic of each one to be distributed to the correct MBS Service Area.
The MBSTF uses a separate tunnel to inject the MBS data for each MBS Distribution Session into the MB-UPF.
The MB-UPF listens on two separate UDP ports (port#A and port#B) for the location-specific MBS data streams.
C.4.2 Location-dependent generic object distribution with push-based ingest
The location-dependent MBS Serivce described in this clause is very similar to that in clause C.4.1. The difference is the distribution of a generic object stream which is not described by a manifest.
Figure C.4.2-1: Location-dependent generic object distribution with push-based ingest
As in clause C.2.3, no Object acquisition identifiers are provisioned. Any object pushed to one of the Object ingest base URLs nominated by the MBSF is distributed to the corresponding MBS Distribution Session by the MBSTF after substituting the relevant Object ingest base URL prefix with the corresponding Object distribution base URL.
Annex D (informative):
Change history
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Change history |
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Date |
Meeting |
TDoc |
CR |
Rev |
Cat |
Subject/Comment |
New version |
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2021-07 |
Post-SA4#114-e ad hoc |
S4aI211206 |
Initial skeleton document. |
0.0.1 |
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2021-08 |
SA4#115-e |
S4-211270 |
Implemented agreements at SA4#115-e |
0.1.0 |
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2021-11 |
SA4#116-e |
S4-211663 |
Implemented agreements at SA4#115-e: S4-211588: Service/session model and high-level procedures. S4-211597: Reference architecture and reference points. S4-211657: Definitions of functional entities. S4-211661: Definitions of two distribution methods. S4-211662: Collaboration scenarios. |
0.2.0 |
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2021-12 |
SA#94-e |
SP-211343 |
Presentation to plenary for information |
1.0.0 |
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2022-02 |
SA4#117-e |
S4-220235 |
Implemented agreements at SA4#115-e: S4-220056r05: Static domain model and baseline parameters. S4-220057: MBS Distribution Session life-cycle model. S4-220149r01: Network Function services. S4-220150r03: Nmb8 User Plane ingest examples. S4-220112r03: Interworking with eMBMS and updates on User Service Announcement carriage. S4-220123r08: Support of interworking with LTE-MBMS. |
1.1.0 |
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2022-03 |
SA#95-e |
SP-220297 |
Presentation to SA for approval |
2.0.0 |
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2022-03 |
SA#95-e |
Under change control |
17.0.0 |
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2022-06 |
SA#96 |
SP-220621 |
0001 |
1 |
F |
[5MBUSA] MBS User Service procedures |
17.1.0 |
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2022-06 |
SA#96 |
SP-220621 |
0002 |
1 |
F |
[5MBUSA] Additional stage 2 detail |
17.1.0 |
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2022-06 |
SA#96 |
SP-220621 |
0003 |
1 |
F |
CR support of Group Communication Service |
17.1.0 |
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2022-06 |
SA#96 |
SP-220621 |
0004 |
1 |
F |
[5MBUSA]: Various corrections around File Repair, Consumption Reporting and Reception Reporting |
17.1.0 |
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2022-06 |
SA#96 |
SP-220621 |
0005 |
`1 |
F |
[5MBUSA]: Clarification of Nmb8 Protocol stacks wrt Unicast or Multicast usage. |
17.1.0 |
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2022-06 |
SA#96 |
SP-220621 |
0006 |
F |
Service-based operand details |
17.1.0 |
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2022-06 |
SA#96 |
Editorials |
17.1.1 |
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2022-09 |
SA#97-e |
SP-220760 |
0007 |
1 |
F |
[5MBUSA] Modifications to MBS User Services architecture |
17.2.0 |
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2022-09 |
SA#97-e |
SP-220760 |
0008 |
F |
[5MBUSA] New Annex on Data Model example instantiations |
17.2.0 |
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2022-12 |
SA#98-e |
SP-221045 |
0010 |
1 |
F |
CR to TS 26.502 Correction of FSA ID |
17.3.0 |
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2022-12 |
SA#98-e |
SP-221045 |
0011 |
2 |
F |
[5MBUSA] Correction of interworking for Group Communication |
17.3.0 |
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2022-12 |
SA#98-e |
SP-221045 |
0012 |
2 |
F |
[5MBUSA] Correction of Nmb2 Events |
17.3.0 |