Canonical Atlas record

TR 25.921

Guidelines and principles for protocol description and error handling

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Responsible WGRP

StatusUnder change control

Initial releaseRel-4

Selected releaseRel-4

Latest indexed version7.0.0

Series25

TypeTR

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.

Release ledger

Version · WI · CR evidence by release

Rel-44.8.00 WI23 CRs · 21 approved

Rel-55.5.01 WI10 CRs · 8 approved

Rel-66.1.01 WI1 CR · 1 approved

Rel-77.0.00 WI0 CRs

R99no version indexed1 WI31 CRs · 30 approved

Release 19993.11.00 WI0 CRs

Rel-4 snapshot

Work affecting this release

23 indexed Change Requests · 0 connected Work Items.

Showing 12 CR records from the available cross-release sample. Browse release CR records (JSON) →

CR 0037 — Extensions of IE value ranges in tabular

CR 0039 — Additional guidelines on ASN.1 comments

CR 0041 — RRC specific rules for procedure text

CR 0043 — Introduction of backwards compatible correction mechanism

CR 0046 — Guideline on introducing additional SIB types

CR 0050 — Spare Extension in Data Frame

CR 0053 — Guideline on release independent ASN.1 updates

CR 0053 rev.1 — Guideline on release independent ASN.1 updates

CR 0053 rev.2 — Guideline on release independent ASN.1 updates

CR 0056 — Guideline on the use of variable length containers for late extensions

CR 0059 — Guideline for the naming of extensions to the RRC ASN.1

CR 0062 — Empty non-critical extensions

Version history

Indexed versions

Showing 33 of 33 indexed versions.

7.0.0Rel-7SA#362007-07-25

6.1.0Rel-6RAN#292005-10-14

6.0.0Rel-6RAN#262004-12-21

5.5.0Rel-5RAN#242004-06-17

4.8.0Rel-4RAN#242004-06-17

3.11.0Release 1999RAN#242004-06-17

5.4.0Rel-5RAN#232004-03-26

4.7.0Rel-4RAN#232004-03-26

3.10.0Release 1999RAN#232004-03-26

5.3.0Rel-5RAN#222004-01-12

5.2.0Rel-5RAN#212003-10-02

4.6.0Rel-4RAN#212003-10-02

3.9.0Release 1999RAN#212003-10-02

5.1.0Rel-5RAN-#182003-01-13

4.5.0Rel-4RAN-#182003-01-13

3.8.0Release 1999RAN-#182003-01-13

5.0.0Rel-5RAN-#152002-03-19

4.4.0Rel-4RAN-#152002-03-19

3.7.0Release 1999RAN-#152002-03-19

4.3.0Rel-4RAN-#142002-01-04

3.6.0Release 1999RAN-#142002-01-04

4.2.0Rel-4RAN-#132001-10-02

3.5.0Release 1999RAN-#132001-10-02

4.1.0Rel-4RAN-#122001-06-19

3.4.0Release 1999RAN-#122001-06-19

4.0.0Rel-4RAN-#112001-03-27

3.3.0Release 1999RAN-#112001-03-27

3.2.0Release 1999RAN-#102000-12-20

3.1.0Release 1999RAN-#72000-03-15

3.0.0Release 1999RAN-#61999-12-12

1.3.0Release 1999RAN-#51999-10-13

1.0.0Release 1999RAN-#31999-04-23

0.0.0Release 1999-1999-02-04

Atlas classifications

Meaning and provenance

No Atlas classifications have been attached yet.

Work Items

Standards work connected to TR 25.921

TEI5

(Small) Technical Enhancements and Improvements for Rel-5

Rel-5parsed

TEI6

(Small) Technical Enhancements and Improvements for Rel-6

Rel-6parsed

TEI

(Small) Technical Enhancements and Improvements for R99

R99parsed

Knowledge graph

Related standards

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