Canonical Atlas record

TS 23.221

Architectural requirements

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Responsible WGS2

StatusUnder change control

Initial releaseRel-4

Selected releaseRel-13

Latest indexed version19.0.0

Series23

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-44.2.01 WI6 CRs · 4 approved

Rel-55.11.04 WI46 CRs · 27 approved

Rel-66.3.07 WI14 CRs · 5 approved

Rel-77.2.05 WI12 CRs · 3 approved

Rel-88.9.016 WI77 CRs · 14 approved

Rel-99.5.03 WI66 CRs · 15 approved

Rel-1010.3.06 WI27 CRs · 4 approved

Rel-1111.3.07 WI36 CRs · 5 approved

Rel-1212.0.01 WI8 CRs

Rel-1313.0.01 WI6 CRs · 1 approved

Rel-1414.2.01 WI19 CRs · 4 approved

Rel-1515.1.01 WI10 CRs · 2 approved

Rel-1616.2.01 WI5 CRs · 3 approved

Rel-1717.0.00 WI0 CRs

Rel-1818.0.00 WI0 CRs

Rel-1919.0.00 WI0 CRs

R99no version indexed6 WI0 CRs

Rel-13 snapshot

Work affecting this release

6 indexed Change Requests · 1 connected Work Item.

Showing 6 CR records from the available cross-release sample. Browse release CR records (JSON) →

CR 0166 — Use of CS domain upon failure to setup the resources for VoLTE MO call

CR 0167 — Addition of NB-IoT radio access type to the Access-Restriction-Data feature

CR 0166 rev.1 — Use of CS domain upon failure to setup the resources for VoLTE MO call

CR 0165 — Access Class Barring applicability to Domain selection

CR 0163 rev.2 — Clarification on roaming subscription corresponding to specific RAT for 23.221

CR 0163 rev.1 — Clarification on roaming subscription corresponding to specific RAT for 23.221

Version history

Indexed versions

Showing 60 of 62 indexed versions.

19.0.0Rel-19SA#1092025-10-06

18.0.0Rel-18SA#1032024-04-03

17.0.0Rel-17SA#95-e2022-03-30

16.2.0Rel-16SA#842019-06-11

16.1.0Rel-16SA#832019-03-25

16.0.0Rel-16SA#822018-12-18

15.1.0Rel-15SA#822018-12-18

14.2.0Rel-14SA#822018-12-18

15.0.0Rel-15SA#772017-09-18

14.1.0Rel-14SA#742016-12-16

14.0.0Rel-14SA#732016-09-26

13.0.0Rel-13SA#642014-06-24

12.0.0Rel-12SA#642014-06-24

11.3.0Rel-11SA#642014-06-24

10.3.0Rel-10SA#642014-06-24

11.2.0Rel-11SA#602013-06-24

9.5.0Rel-9SA#582012-12-18

8.9.0Rel-8SA#582012-12-18

11.1.0Rel-11SA#582012-12-18

10.2.0Rel-10SA#582012-12-18

11.0.0Rel-11SA#542011-12-16

10.1.0Rel-10SA#542011-12-16

8.8.0Rel-8SA#512011-03-28

10.0.0Rel-10SA#512011-03-28

9.4.0Rel-9SA#482010-06-14

9.3.0Rel-9SA#472010-03-26

8.7.0Rel-8SA#472010-03-26

9.2.0Rel-9SA#462009-12-14

8.6.0Rel-8SA#462009-12-14

9.1.0Rel-9SA#452009-09-29

8.5.0Rel-8SA#452009-09-29

9.0.0Rel-9SA#442009-06-08

8.4.0Rel-8SA#442009-06-08

8.3.0Rel-8SA#422008-12-16

8.2.0Rel-8SA#412008-09-24

8.1.0Rel-8SA#402008-06-09

8.0.0Rel-8SA#392008-03-25

7.2.0Rel-7SA#382007-12-13

7.1.0Rel-7SA#352007-03-20

7.0.0Rel-7SA#312006-03-24

5.11.0Rel-5SA#252004-09-27

6.3.0Rel-6SA#242004-06-23

5.10.0Rel-5SA#242004-06-23

6.2.0Rel-6SA#232004-04-01

5.9.0Rel-5SA#232004-04-01

6.1.0Rel-6SA#212003-10-01

5.8.0Rel-5SA#212003-10-01

6.0.0Rel-6SA#192003-03-27

5.7.0Rel-5SA-#182003-01-10

5.6.0Rel-5SA-#172002-10-02

5.5.0Rel-5SA-#162002-06-18

4.2.0Rel-4SA-#162002-06-18

5.4.0Rel-5SA-#152002-04-05

5.3.0Rel-5SA-#142002-01-07

5.2.0Rel-5SA-#132001-10-12

5.1.0Rel-5SA-#122001-07-02

4.1.0Rel-4SA-#122001-07-02

5.0.0Rel-5SA-#112001-04-06

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

1.1.0Rel-4 · pre-approval-2001-02-01

Atlas classifications

Meaning and provenance

No Atlas classifications have been attached yet.

Work Items

Standards work connected to TS 23.221

TEI4

(Small) Technical Enhancements and Improvements for Rel-4

Rel-4parsed

E2EQoS

End to End QoS for PS Domain including IMS

Rel-5official

IMS

Provisioning of IP-based multimedia services

Rel-5official

IMS-CCR

Call control and roaming to support IMS in UMTS

Rel-5official

TEI5

(Small) Technical Enhancements and Improvements for Rel-5

Rel-5parsed

WI 32044

Stage 2 for Network Sharing

Rel-6official

WI 32059

Definition of the Gq interface

Rel-6official

IMS2

IMS Phase 2

Rel-6official

IMSCOOP

Interoperability and Commonality between IMS using different IP-connectivity Networks

Rel-6official

IPv4IMS

Study on Interworking aspects and migration scenarios for IPv4 based IMS Implementations

Rel-6official

QoS1

QoS Improvements

Rel-6official

TEI6

(Small) Technical Enhancements and Improvements for Rel-6

Rel-6parsed

EMC1

Stage 2 Specification Phase - IMS-level

Rel-7official

EMC1

PS domain and IMS impacts for supporting IMS Emergency calls (EMC1)

Rel-7official

IMS-RT

Deleted - Study on IMS enhancements and optimizations for real time communication.

Rel-7official

TEI7

(Small) Technical Enhancements and Improvements for Rel-7

Rel-7parsed

VCC

Voice Call Continuity between CS and IMS (incl. I-WLAN)

Rel-7official

FS_SAE

Study on 3GPP System Architecture Evolution

Rel-8official

ICSRA

IMS Centralized Service control

Rel-8official

ICSRA-St2

Stage 2 for ICS Requirement and Architecture

Rel-8official

IMS-Cont

IMS Service Continuity

Rel-8official

LTE

Rel-8 LTE 3G Long Term Evolution - Evolved Packet System RAN part

Rel-8official

SAES

Deleted - Issues for CT4 TR 29.803

Rel-8official

SAES

3GPP System Architecture Evolution Specification - Evolved Packet System (non RAN aspects)

Rel-8official

SAES

CT6 aspects of SAE

Rel-8official

SAES

Issues for CT1 TR 24.801

Rel-8official

SAES

Issues for CT3 TR 29.804

Rel-8official

SAES-CSFB

CS Fallback in EPS

Rel-8official

SAES-IMS_LBO

System enhancements for the use of IMS services in local breakout

Rel-8official

SAES-LTE

SAE for LTE access

Rel-8official

SAES-SA-FP_3GPP

Stage 2 GPRS for EPC (23.060, etc.)

Rel-8official

SAES-SA-FP_n3GPP

Stage 3 security aspects for MIPv4 Access

Rel-8official

TEI8

(Small) Technical Enhancements and Improvements for Rel-8

Rel-8parsed

IMS_EMER_GPRS_EPS

Stage 2 for IMS Emergency Calls over GPRS and EPS

Rel-9official

IMS_EMER_GPRS_EPS

Support for IMS Emergency Calls over GPRS and EPS

Rel-9official

TEI9

(Small) Technical Enhancements and Improvements for Rel-9

Rel-9parsed

RED

Deleted - Registration in Densely-populated area (RED)

Rel-10official

RED

Deleted - Stage 2 for RED

Rel-10official

TEI10

(Small) Technical Enhancements and Improvements for Rel-10

Rel-10parsed

ePRIOR-St2

Stage 2 on eMPS for EPS Bearer Service

Rel-10official

ePRIOR-St2

Stage 2 on eMPS for IMS Aspects

Rel-10official

ePRIOR-St2

Stage 2 on eMPS for CSFB

Rel-10official

SIMTC-Reach

MTC Addressing

Rel-11official

SIMTC-Reach

BB1: Stage 2 Reachability Aspects of SIMTC

Rel-11official

SIMTC-Reach

MTC related interfaces and functional entities to support above features (MTCsp, etc.)

Rel-11official

SIMTC-Reach

MSISDN-less / PS-Only

Rel-11official

SIMTC-Reach

Identifiers especially removal of MSISDN dependencies in the architecture

Rel-11official

SIMTC-Reach

On-line device trigger

Rel-11official

TEI11

(Small) Technical Enhancements and Improvements for Rel-11

Rel-11parsed

TEI12

(Small) Technical Enhancements and Improvements for Rel-12

Rel-12parsed

TEI13

(Small) Technical Enhancements and Improvements for Rel-13

Rel-13parsed

TADS_WLAN

T-ADS supporting WLAN Access

Rel-14parsed

5GS_Ph1

5G System - Phase 1

Historical association · verification pending

Rel-15historical link

TEI16

(Small) Technical Enhancements and Improvements for Rel-16

Historical association · verification pending

Rel-16historical link

E2EQoS99

End-to-end QoS for PS Domain including IMS

R99parsed

GERAN

Deleted - GERAN

R99official

GPRS

General Packet Radio Service

R99official

PR,Princs_&_Reqs_(PR)

OAM Principles and High-level Requirements

R99official

QoS

End-to-end UMTS Quality of Service management

R99official

TEI

(Small) Technical Enhancements and Improvements for R99

R99parsed

Knowledge graph

Related standards

No graph edges indexed yet. The graph API is available at this JSON endpoint.