Release ledger
Canonical Atlas record
TS 09.18
General Packet Radio Service (GPRS); Serving GPRS Support Node (SGSN) - Visitors Location Register (VLR); Gs interface layer 3 specification
Responsible WGC1
StatusUnder change control
Initial releaseRelease 1997
Selected releaseRel-97
Latest indexed version7.5.0
Series9
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-97 snapshot
Work affecting this release
0 indexed Change Requests · 0 connected Work Items.
Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →
CR A036 — Explicit IMSI detach, abnormal case SGSN side
CR A040 — TMSI status indication
CR A043 — Correction of Gs Cause
CR A002 — Mobile not reacheable handling
CR A003 — Specification of dependancies between GSM 09.18 timers and other GSM timers
CR A004 rev.1 — New LAI should be mandatory in BSSAP+location_update_request
CR A005 — Completion of the re-naming of BSSAP+-IDENTITY-REQUEST message and MS identification procedure
CR A006 rev.1 — Text clarification and MS class term changed in to MS in class mode of operation
CR A007 — BSSAP+-MS-UNREACHABLE Message type
CR A009 — Clarification of the codings of Message type IE and IE identifiers.
CR A010 rev.1 — Updates and clarifications of the VLR and SGSN State Diagrams.
CR A011 rev.1 — Correction of the IE IMSI
Version history
Indexed versions
Showing 15 of 15 indexed versions.
7.5.0Release 1998—2002-01-04
6.7.0Release 1997—2002-01-04
7.4.0Release 1998—2001-10-02
7.3.0Release 1998—2000-03-15
6.6.0Release 1997—2000-03-15
7.2.0Release 1998—1999-10-08
6.5.0Release 1997—1999-10-08
8.0.0Release 1999-1999-06-25
7.1.0Release 1998-1999-06-25
6.4.0Release 1997-1999-06-25
7.0.0Release 1998-1999-02-12
6.3.0Release 1997-1999-02-12
6.2.0Release 1997-1998-10-16
6.1.0Release 1997-1998-06-26
6.0.0Release 1997-1998-02-20
Atlas classifications
Meaning and provenance
No Atlas classifications have been attached yet.
Work Items
Standards work connected to TS 09.18
EDGE
R99officialEnhanced Data rates for GSM Evolution
GPRS
R99officialGeneral Packet Radio Service
PR,Princs_&_Reqs_(PR)
R99historical linkOAM Principles and High-level Requirements
Historical association · verification pendingKnowledge graph
Related standards
No graph edges indexed yet. The graph API is available at this JSON endpoint.