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TS 22.228 SA1 ★
Service Requirements for IMS

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V17.0.0 (Wzip) 2019/12 51 p.

V16.1.0 (Wzip) 2018/09 51 p.

V15.3.0 (PDF) 2018/06 52 p.

V14.1.0 2016/12 52 p.

V13.3.0 2015/06 51 p.

V12.10.0 2015/06 49 p.

V11.6.0 2012/12 40 p.

V10.5.0 2012/12 34 p.

V9.4.0 2012/12 33 p.

V8.7.0 2012/12 31 p.

V7.6.0 2007/10 21 p.

V6.11.0 2006/03 20 p.

V5.7.0 2006/03 16 p.

Rapporteur: Dr. Swetina, Joerg

This TS defines the service requirements from users' and operators' perspective for the support of IP multimedia applications through the IMS.

IP multimedia applications are supported by IP multimedia sessions in the IM CN Subsystem. IP multimedia sessions use IP connectivity bearers (e.g. GPRS as a bearer). Examples of IP multimedia applications include speech communication, real time multimedia applications, shared online whiteboards etc.

full Table of Contents for TS 22.228 Word version: 17.0.0

1 Scope Word-p. 7

2.1 Normative references

2.2 Informative references [R8] Word-p. 8

3 Definitions and abbreviations

3.1 Definitions

3.2 Abbreviations Word-p. 10

4 Introduction Word-p. 11

5 High level requirements

6 Standardised service capability approach Word-p. 13

7 User service requirements

7.1 Identifying IP multimedia application subscriptions Word-p. 14

7.2 Access to the IM CN subsystem

7.2.0 General [R8]

7.2.1 Access control

7.2.2 IMS Registration and De-registration [R8]

7.3 Capability negotiation

7.4 Redirecting of IP Multimedia sessions Word-p. 15

7.5 Invoking an IP multimedia session

7.5.0 General [R11]

7.5.1 Identification and addressing

7.5.2 Negotiation at IM session invocation Word-p. 16

7.5.3 Emergency communications [R6]

7.5.4 Information of a Called Party [R10]

7.5.5 IMS Network-Independent Public User Identities (INIPUI) [R12] Word-p. 17

7.5.7 Restricted local operator services [R16]

7.6 Handling of an incoming session (by the terminating entity) Word-p. 18

7.6.1 Automatic re-routing

7.6.2 Presentation of session originator identity

7.6.3 Negotiation of an incoming session

7.6.4 Accepting or rejecting an incoming session [R8]

7.6.5 Handling of an incoming session addressed to an unallocated identity [R10]

7.6.6 Differentiated paging for voice over E-UTRAN termination attempts [R13]

7.7 Handling of an ongoing session

7.7.1 User modification of media in an ongoing session

7.7.2 Suspending and resuming of an ongoing session Word-p. 19

7.7.3 Presentation of identity of connected-to party of a session

7.8 Ending a session

7.10 Handling of conferences [R6]

7.10.1 General [R11]

7.10.2 User requirements [R11]

7.10.2.1 General [R12]

7.10.2.2 Telepresence [R12] Word-p. 20

7.10.2.3 VR Telepresence [R16]

7.10.3 Network-based Conference Focus [R11]

7.11 Handling of multicast services [R7]

7.12 Support for Local Numbers in the IMS [R7] Word-p. 21

7.13 User determined user busy [R8]

7.14 IMS Inter-UE Transfer [R9]

7.15 Prevention of Unsolicited Communication in IMS (PUCI) [R9] Word-p. 23

7.15.1 High level requirements

7.15.2 Detection of Unsolicited Communication

7.15.3 Prevention of Unsolicited Communication to the terminating party

7.15.4 Notification of UC to the originating party

7.15.5 Conveying information on UC to other networks

7.16 Support for Push Notification Service in IMS [R12]

8 Interworking requirements [R6]

8.1 General [R8]

8.2 Interworking with PLMN CS Domain [R8] Word-p. 24

8.3 Interworking with PSTN/ISDN networks [R8]

8.3.1 Overlap Signalling Word-p. 25

8.3.2 Subaddressing (SUB)

8.3.3 User-to-User Signalling (UUS)

8.5 Interworking with Packet Cable [R8]

8.6 Interworking with Internet [R8] Word-p. 26

8.7 Voice Interworking with Enterprise IP-PBX [R11]

8.8 Interworking of Telepresence [R12]

9 IP Addressing [R8]

9.2 IP addressing for cdma2000 access to IMS

10 Interconnection requirements [R8]

10.1 Introduction [R12]

10.2 IP interconnect [R12] Word-p. 28

10.3 IMS network interconnect [R12]

11 Support of WebRTC IMS Client access to IMS [R12] Word-p. 29

11.1 Service description (informative)

11.2 Requirements

11.3 Protocol Conversion Minimization Requirements [R13] Word-p. 30

A Example IP multimedia application scenarios Word-p. 31

B Business models use cases [R8] Word-p. 35

C Basic communication cases for IMS networks [R8] Word-p. 37

D (Normative) Access to IMS via non-3GPP access [R8] Word-p. 39

E Example use cases for IMS Inter UE Transfer (i.e. transfer/replication/sharing) [R10] Word-p. 40

G Example use cases for IMS-Based Telepresence [R12] Word-p. 41

H Support of WebRTC client access to IMS [R12] Word-p. 42

H.2 WebRTC-based application supports broad IMS client capabilities

H.2.1 Description

H.2.2 Pre-conditions

H.2.3 Service flows

H.2.4 Post-conditions Word-p. 43

H.3 User gets their IMS service via third-party WebRTC-based application

H.3.1 Description

H.3.2 Pre-conditions

H.3.3 Service flows

H.3.4 Post-conditions

H.4 User gets third-party IMS service via WebRTC-based application [R13]

H.4.1 Description

H.4.2 Pre-conditions Word-p. 44

H.4.3 Service flows

H.4.4 Post-conditions

H.5 Anonymous user gets IMS service via third-party WebRTC-based application

H.5.1 Description

H.5.2 Pre-conditions Word-p. 45

H.5.3 Service flows

H.5.4 Post-conditions

H.6 End to end WebRTC bearer support over IMS [R13]

H.6.1 Description

H.6.2 Pre-conditions Word-p. 46

H.6.3 Service flows

H.6.4 Post-conditions Word-p. 47

I Change history Word-p. 48