Content for TR 23.700-10 Word version: 17.1.0

3.1 Terms 3.2 Symbols 3.3 Abbreviations
...

1 Scope p. 6

The aim of this Technical Report is to study and specify potential enhancements to the 5G System to enable IMS FE to integrate with the 5GC network functions to enable IMS applications to directly leverage the features and capabilities of 5GC.

The specific capabilities of 5GC included in this study:

In regard to 5GC network slicing; what enhancements (if any) are necessary for UE and 5G core network to efficiently support devices and networks with multiple slices and different services offered by the IMS network per slice?
How to route IMS traffic via a localized UPF.
How to place IMS application server in localized environments.
How can IMS utilize services provided by 5GC NFs other than PCF and HSS.

2 References p. 6

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.

References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific.
For a specific reference, subsequent revisions do not apply.
For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.

[1]

TR 21.905: "Vocabulary for 3GPP Specifications".

[2]

TS 23.502: "Procedures for the 5G System".

[3]

TR 23.700-11: "Study on enhanced IP Multimedia Subsystem (IMS) to 5GC integration Phase 2; CT WG3 aspects".

[4]

TS 24.229: "IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3".

[5]

TS 23.228: "IP Multimedia Subsystem (IMS); Stage 2".

[6]

TS 24.526: "User Equipment (UE) policies for 5G System (5GS); Stage 3".

3 Definitions of terms, symbols and abbreviations p. 6

3.1 Terms p. 6

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

3.2 Symbols p. 7

For the purposes of the present document, the following symbols apply:

3.3 Abbreviations p. 7

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

DNN

Data Network Name

IMPI

IM Private Identity

ISH

IMS Subscription Holder

ISIM

IM Services Identity Module

MCC

Mobile Country Code

MNC

Mobile Network Code

NSSAI

Network Slice Selection Assistance Information

S-NSSAI

Single NSSAI

SNPN

Stand-alone Non-Public Network

SUPI

Subscription Permanent Identifier

URSP

UE Route Selection Policy

USIM

Universal Subscriber Identity Module