3 Definitions and abbreviations

24.3373GPPIP Multimedia (IM) Core Network (CN) subsystem IP Multimedia Subsystem (IMS) inter-UE transferRelease 17Stage 3TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in 3GPP TR 21.905 [1].

Controller capable UE: A UE that is capable of becoming a controller UE.

Inter UE Transfer SCC AS URI: A SIP URI which is a public service identity hosted by SCC AS and which is used in inter UE transfer procedures.

For the purposes of the present document, the following terms and definitions given in 3GPP TS 23.237 [4] apply:

Remote Leg

Collaborative session

Controllee UE

Controller UE

Inter-UE transfer

Service Continutiy

For the purposes of the present document, the following terms and definitions given in IETF RFC 4353 [39] apply:

Conference

Conference URI

Focus

Participant

For the purposes of the present document, the following terms and definitions given in IETF RFC 3264 [31] apply:

Directionality

3.2 Abbreviations

For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].

SC Service Continuity

SCC Service Centralization and Continuity

STI Session Transfer Identifier

XCAP Extensible Markup Language (XML) Access Configuration Protocol

XML Extensible Markup Language