Release ledger
Canonical Atlas record
TS 23.121
Architectural requirements for Release 1999
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-99 snapshot
Work affecting this release
0 indexed Change Requests · 2 connected Work Items.
Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR 0027 rev.2 — Combined location procedures
CR 0001 rev.2 — Architecture for multimedia
CR 0003 rev.1 — Mobile IP in R99
CR 0006 rev.1 — Iu network service for the packet domain
CR 0008 — Clarification to MM procedures
CR 0009 rev.1 — Allowed network and terminal implementation configurations in UMTS
CR 0012 rev.2 — Hierarchical tracking concept, recovery of temporarily lost mobiles, and MM and SM relation - Revised version
CR 0016 — LAI addition for combined area update procedure
CR 0019 — Clarifications on Iu_ps control plane
CR 0023 rev.2 — Description of UTRAN coordination
CR 0024 rev.3 — SRNC relocation in relation with SGSN change
CR 0025 — LA/RA - URA relationship
Version history
Indexed versions
Showing 13 of 13 indexed versions.
Atlas classifications
Meaning and provenance
No Atlas classifications have been attached yet.
Work Items
Standards work connected to TS 23.121
Provisioning of IP-based multimedia services
R99 Charging
Historical association · verification pending(Small) Technical Enhancements and Improvements for R99
Knowledge graph
Related standards
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