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Content for  TR 23.700-10  Word version:  17.1.0

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1  Scopep. 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.
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2  Referencesp. 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".
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3  Definitions of terms, symbols and abbreviationsp. 6

3.1  Termsp. 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  Symbolsp. 7

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

3.3  Abbreviationsp. 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
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