Canonical Atlas record

TS 25.401

UTRAN overall description

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Responsible WGR3

StatusUnder change control

Initial releaseRel-4

Selected releaseRel-12

Latest indexed version19.0.0

Series25

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.

Release ledger

Version · WI · CR evidence by release

Rel-44.6.06 WI13 CRs · 11 approved

Rel-55.10.09 WI29 CRs · 23 approved

Rel-66.9.016 WI27 CRs · 15 approved

Rel-77.6.018 WI26 CRs · 12 approved

Rel-88.2.08 WI10 CRs · 6 approved

Rel-99.1.12 WI3 CRs · 1 approved

Rel-1010.2.05 WI12 CRs · 4 approved

Rel-1111.1.03 WI7 CRs · 2 approved

Rel-1212.0.05 WI5 CRs · 1 approved

Rel-1313.0.03 WI14 CRs · 3 approved

Rel-1414.0.04 WI9 CRs · 2 approved

Rel-1515.0.00 WI0 CRs

Rel-1616.0.00 WI0 CRs

Rel-1717.0.00 WI0 CRs

Rel-1818.0.00 WI0 CRs

Rel-1919.0.00 WI0 CRs

R99no version indexed5 WI33 CRs · 31 approved

Release 19993.10.00 WI0 CRs

Rel-12 snapshot

Work affecting this release

5 indexed Change Requests · 5 connected Work Items.

Showing 5 CR records from the available cross-release sample. Browse release CR records (JSON) →

CR 0141 rev.1 — Introduction of Standalone GW for SIPTO@LN

CR 0141 — Introduction of Standalone GW for SIPTO@LN

CR 0141 rev.2 — Introduction of Standalone GW for SIPTO@LN

CR 0141 rev.3 — Introduction of Standalone GW for SIPTO@LN

CR 0142 — LAPI for NNSF

Version history

Indexed versions

Showing 60 of 68 indexed versions.

19.0.0Rel-19SA#1092025-10-02

18.0.0Rel-18SA#1032024-04-03

17.0.0Rel-17SA#95-e2022-04-05

16.0.0Rel-16SA#88-e2021-03-08

15.0.0Rel-15SA#802018-07-02

14.0.0Rel-14RAN#752017-03-27

13.0.0Rel-13RAN#702015-12-21

12.0.0Rel-12RAN#622013-12-19

11.1.0Rel-11RAN#582012-12-19

11.0.0Rel-11RAN#572012-09-21

10.2.0Rel-10RAN#522011-06-24

9.1.1Rel-9RAN#512011-04-04

10.1.0Rel-10RAN#512011-04-04

10.0.0Rel-10RAN#502010-12-21

9.1.0Rel-9RAN#472010-04-06

9.0.0Rel-9SA#462009-12-18

8.2.0Rel-8RAN#422008-12-16

8.1.0Rel-8RAN#412008-09-23

8.0.0Rel-8RAN#402008-06-10

7.6.0Rel-7RAN#402008-06-10

7.5.0Rel-7RAN#372007-10-01

7.4.0Rel-7RAN#362007-06-20

7.3.0Rel-7RAN#352007-03-23

7.2.0Rel-7RAN#342006-12-13

6.9.0Rel-6RAN#342006-12-13

7.1.0Rel-7RAN#332006-10-09

6.8.0Rel-6RAN#332006-10-09

7.0.0Rel-7RAN#312006-03-24

6.7.0Rel-6RAN#292005-10-05

6.6.0Rel-6RAN#282005-06-17

5.10.0Rel-5RAN#282005-06-17

6.5.0Rel-6RAN#262005-01-06

6.4.0Rel-6RAN#252004-09-24

5.9.0Rel-5RAN#252004-09-24

6.3.0Rel-6RAN#242004-06-23

5.8.0Rel-5RAN#242004-06-23

6.2.0Rel-6RAN#222004-01-13

5.7.0Rel-5RAN#222004-01-13

6.1.0Rel-6RAN#202003-06-17

5.6.0Rel-5RAN#202003-06-17

6.0.0Rel-6RAN#192003-03-26

5.5.0Rel-5RAN-#182003-01-03

4.6.0Rel-4RAN-#182003-01-03

5.4.0Rel-5RAN-#172002-09-30

4.5.0Rel-4RAN-#172002-09-30

5.3.0Rel-5RAN-#162002-06-28

4.4.0Rel-4RAN-#162002-06-28

3.10.0Release 1999RAN-#162002-06-28

5.2.0Rel-5RAN-#152002-04-02

4.3.0Rel-4RAN-#152002-04-02

3.9.0Release 1999RAN-#152002-04-02

5.1.0Rel-5RAN-#132001-10-12

4.2.0Rel-4RAN-#132001-10-12

3.8.0Release 1999RAN-#132001-10-12

5.0.0Rel-5RAN-#122001-07-06

4.1.0Rel-4RAN-#122001-07-06

3.7.0Release 1999RAN-#122001-07-06

4.0.0Rel-4RAN-#112001-04-06

3.6.0Release 1999RAN-#112001-04-06

3.5.0Release 1999RAN-#102000-12-21

Atlas classifications

Meaning and provenance

No Atlas classifications have been attached yet.

Work Items

Standards work connected to TS 25.401

Effective Acronym:

Rel-4 RAN improvements

Rel-4official

LCRTDD

Low Chip Rate TDD option

Rel-4official

LCRTDD-IubIur

Iub/Iur protocol aspects - for Low Chip Rate TDD option

Rel-4official

LCS1-UEpos-IubIur

Iub/Iur interfaces for methods Rel 99

Rel-4official

TEI4

(Small) Technical Enhancements and Improvements for Rel-4

Rel-4parsed

TrFO-OoBTC-UTRAN

implementation in UTRAN

Rel-4official

ETRAN-IPtrans

IP transport in the UTRAN

Rel-5official

Effective Acronym:

Rel-5 RAN improvements

Rel-5official

HSDPA

High Speed Downlink Packet Access

Rel-5official

HSDPA-IubIur

Iub/Iur protocol aspects - for High Speed Downlink Packet Access

Rel-5official

LCS-INTF

Open SMLC-SRNC Interface within the UTRAN to support A-GPS Positioning

Rel-5official

NETSHARE

UTRAN Sharing in Connected Mode

Rel-5official

RANimp-SRNS

FS SRNS Relocation Procedure Enhancement

Rel-5official

TEI5

(Small) Technical Enhancements and Improvements for Rel-5

Rel-5parsed

TLM5

Rel-5 Terminal interfaces

Rel-5official

WI 9

Rel-6 RAN improvements

Rel-6official

WI 2

Deleted - Rel-6 Evolutions of the transport in the UTRAN (ETRAN)

Rel-6official

WI 624

RAB support enhancement

Rel-6official

Rel-6 Charging Management

Rel-6official

EDCH

FDD Enhanced Uplink

Rel-6official

EDCH-IurIub

FDD Enhanced Uplink - UTRAN Iub/Iur Protocol Aspects

Rel-6official

FLOGER

Flexible Layer One for GERAN

Rel-6official

LCS-Rel4Pos

Open SMLC-SRNC Interface within the UTRAN to support UTRAN Rel-4 positioning methods

Rel-6official

MBMS

Multimedia Broadcast and Multicast Service

Rel-6official

MBMS-RAN

Introduction of MBMS in RAN

Rel-6official

NTShar-UTRANEnh

Enhancement of the support of network sharing in the UTRAN

Rel-6official

PRIOR1

Priority Service

Rel-6official

RANimp-NACC

Network Assisted Cell Change (NACC) from UTRAN to GERAN - network-side aspects

Rel-6official

RANimp-RABSE-CodeOptFDD

Optimization of downlink channelisation code utilisation

Rel-6official

RANimp-TiltAnt

Remote Control of Electrical Tilting Antennas

Rel-6official

TEI6

(Small) Technical Enhancements and Improvements for Rel-6

Rel-6parsed

WI 20029

Rel-7 RAN improvements

Rel-7official

AGNSS

Stage 1/2 for Towards AGNSS Concept

Rel-7official

EDCHTDD

3.84 Mcps TDD Enhanced Uplink

Rel-7official

EDCHTDD-IurIub

EDCHTDD: UTRAN Iub/Iur Protocol Aspects

Rel-7official

LCRTDD-EDCH

1.28 Mcps TDD Enhanced Uplink

Rel-7official

LCRTDD-EDCH-IubIur

1.28 Mcps TDD Enhanced Uplink: UTRAN Iub/Iur Protocol Aspects

Rel-7official

LCS3

Location Services enhancements

Rel-7official

LCS3-GNSS-UTRAN

Global Navigation Satellite System (GNSS) in UTRAN

Rel-7official

LCS3-UEPos-Velocity

UE positioning - Velocity

Rel-7official

LCS3-UEpos

Deleted - UE positioning Rel-7

Rel-7official

Mp (MRFC - MRFP) interface

Rel-7official

RANImp-TMA

Interface to control Tower Mounted Amplifiers (TMAs)

Rel-7official

RANimp-EnhState

Enhanced CELL_FACH State in FDD

Rel-7official

RANimp-L2DataRates

Improved L2 support for high data rates

Rel-7official

RANimp-VHCRTDD-EDCH

7.68 Mcps TDD Enhanced Uplink

Rel-7official

TEI7

(Small) Technical Enhancements and Improvements for Rel-7

Rel-7parsed

VHCRTDD

7.68 Mcps TDD option

Rel-7official

VHCRTDD-IurIub

VHCRTDD: UTRAN Iub/Iur Protocol Aspects

Rel-7official

Effective Acronym:

Rel-8 RAN improvements

Rel-8official

HNB-arch

UTRAN Architecture for 3G HNB

Rel-8official

RANimp-EnhState1.28TDD

Enhanced CELL_FACH state in 1.28 Mcps TDD

Rel-8official

RANimp-HSPAEvo

Enhancements for FDD HSPA Evolution

Rel-8official

RANimp-SrnsReloc

Enhancements for Serving Radio Network Subsystem (SRNS) Relocation Procedure

Rel-8official

RANimp-UplinkEnhState

Enhanced Uplink for CELL_FACH State in FDD

Rel-8official

RANimp-UplinkL2dataRates

Improved L2 for uplink

Rel-8official

TEI8

(Small) Technical Enhancements and Improvements for Rel-8

Rel-8parsed

Effective Acronym:

Rel-9 RAN improvements

Rel-9official

TEI9

(Small) Technical Enhancements and Improvements for Rel-9

Rel-9parsed

MDT_UMTSLTE-Core

Core part: Minimization of Drive Tests for E-UTRAN and UTRAN

Rel-10parsed

NIMTC-RAN_overload

RAN mechanisms to avoid CN overload due to Machine-Type Communications

Rel-10official

TEI10

(Small) Technical Enhancements and Improvements for Rel-10

Rel-10parsed

eIurg

Enhancements of Iur-g interface

Rel-10official

eIurg-RAN

Core part: Enhancements of Iur-g interface (Stage 2/3)

Rel-10official

SONenh2_LTE_UTRA-Core

Core part: Further Self Optimizing Networks (SON) enhancements

Rel-11official

TEI11

(Small) Technical Enhancements and Improvements for Rel-11

Rel-11parsed

rSRVCC-RAN_UTRA-Core

Core part: UTRAN aspects of Single Radio Voice Call Continuity from UTRAN/GERAN to E-UTRAN/HSPA

Rel-11official

LIMONET

LIPA Mobility and SIPTO at the Local Network

Rel-12official

LIMONET-RAN

RAN aspects for SIPTO at the Local Network

Rel-12official

LIMONET-RAN-Core

Core part: RAN aspects for SIPTO at the Local Network

Rel-12official

MTCe-SA3TR

TR on Security aspects of Machine-Type Communications

Rel-12official

TEI12

(Small) Technical Enhancements and Improvements for Rel-12

Rel-12parsed

DECOR-UTRA_LTE-Core

Core part: Dedicated Core Networks

Rel-13parsed

RSE_UTRA_GUSH-Core

Core part: RAN sharing enhancements for UMTS

Rel-13parsed

UTRA_EDL_L23-Core

Core part: L2/L3 Downlink enhancements for UMTS

Rel-13parsed

TEI14

(Small) Technical Enhancements and Improvements for Rel-14

Rel-14parsed

UMTS_QMC_Streaming

Quality of Experience (QoE) Measurement Collection for streaming services in UTRAN

Rel-14parsed

UMTS_QMC_Streaming-Core

Core part:Quality of Experience (QoE) Measurement Collection for streaming services in UTRAN

Rel-14parsed

eDECOR-UTRA_LTE-Core

Core part: RAN aspects of eDECOR for UMTS and LTE

Rel-14parsed

Harmonized Standard

R99official

LCS

Location Services

R99official

Lawful Interception for GSM Features transposed to UMTS

R99official

TEI

(Small) Technical Enhancements and Improvements for R99

R99parsed

UTRAN

UMTS Terrestrial Radio Access Network

R99official

Knowledge graph

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