Release ledger
Canonical Atlas record
TS 26.502
5G multicast-broadcast services; User service architecture
Responsible WGS4
StatusUnder change control
Initial releaseRel-17
Selected releaseRel-19
Latest indexed version19.6.0
Series26
TypeTS
Release evolution
Compare evidence between releases
Use indexed version, Work Item and Change Request evidence to see what changed around this specification. This is an evidence trail, not a clause-by-clause normative diff.
Rel-19 snapshot
Work affecting this release
41 indexed Change Requests · 2 connected Work Items.
Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR 0057 — [5MBUSA] Realignment of reference point MBS-1 to MBS AF
CR 0054 rev.1 — [5MBUSA] Provisioning parameter corrections/clarifications
CR 0051 — [5MBUSA] User Service Announcement parameters alignment and clarifications
CR 0048 — [5MBUSA] MBSF notification event corrections
CR 0044 rev.1 — [5MBUSA] Add missing User Plane traffic flow information parameters
CR 0045 rev.1 — Corrections to In-Session Unicast Repair
CR 0041 rev.3 — Alignment CR for In-Session Unicast Repair
CR 0040 rev.2 — Aligning Stage 2 Session Announcement with Stage 3 on target service area
CR 0036 — [AMD-ARCH-MED] Remove time services endpoints from MBSTF scope
CR 0035 rev.5 — [AMD-ARCH-MED] MBS Time Synchronization
CR 0033 rev.7 — [AMD-ARCH-MED] In-session Unicast Repair for MBS Object Distribution
CR 0034 rev.6 — [AMD-ARCH-MED] MBS User Service and Delivery Protocols for eMBMS
Version history
Indexed versions
Showing 35 of 35 indexed versions.
19.6.0Rel-19SA#1132026-10-05
18.7.0Rel-18SA#1132026-10-05
17.13.0Rel-17SA#1132026-10-05
19.5.0Rel-19SA#1122026-06-30
18.6.0Rel-18SA#1122026-06-30
17.12.0Rel-17SA#1122026-06-30
19.4.0Rel-19SA#1112026-03-25
18.5.0Rel-18SA#1112026-03-25
17.11.0Rel-17SA#1112026-03-25
19.3.0Rel-19SA#1102026-01-07
18.4.0Rel-18SA#1102026-01-07
17.10.0Rel-17SA#1102026-01-07
19.2.0Rel-19SA#1092025-10-05
19.1.0Rel-19SA#1082025-06-30
18.3.0Rel-18SA#1082025-06-30
17.9.0Rel-17SA#1082025-06-30
19.0.0Rel-19SA#1072025-03-27
18.2.0Rel-18SA#1052024-10-02
17.8.0Rel-17SA#1052024-10-02
18.1.0Rel-18SA#1042024-07-11
17.7.0Rel-17SA#1042024-07-11
18.0.0Rel-18SA#1032024-05-15
17.6.0Rel-17SA#1012023-09-23
17.5.0Rel-17SA#1002023-06-26
17.4.0Rel-17SA#992023-03-30
17.3.0Rel-17SA#98-e2023-01-06
17.2.0Rel-17SA#97-e2022-09-23
17.1.1Rel-17SA#962022-07-28
17.1.0Rel-17SA#962022-06-17
17.0.0Rel-17SA#95-e2022-03-26
2.0.0Rel-17 · pre-approvalSA#95-e2022-03-09
1.1.0Rel-17 · pre-approvalSA4#117-e2022-03-01
1.0.0Rel-17 · pre-approvalSA#94-e2022-01-05
0.2.0Rel-17 · pre-approvalSA4#116-e2022-01-05
0.1.0Rel-17 · pre-approvalSA4#115-e2021-09-24
Atlas classifications
Meaning and provenance
No Atlas classifications have been attached yet.
Work Items
Standards work connected to TS 26.502
5MBP3
Rel-17parsed5G Multicast-Broadcast Protocols
5MBUSA
Rel-17official5G Multicast-Broadcast User Service Architecture and related 5GMS Extensions
5MBS_Ph2
Rel-18parsed5G multicast-broadcast services Phase 2
TEI18
Rel-18parsed(Small) Technical Enhancements and Improvements for Rel-18
AMD-ARCH-MED
Rel-19parsedStage 2 for Advanced Media Delivery
TEI19
Rel-19parsed(Small) Technical Enhancements and Improvements for Rel-19
AMD_ARCH_Ph2-MED
Rel-20parsedArchitectural Updates for Advanced Media Delivery Phase 2
Knowledge graph
Related standards
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