Content for TR 23.700-17 Word version: 18.0.0

1 Scope p. 9

The Technical Report studies and performs evaluations of potential architecture enhancements to enhance the support of Wireline-Wireless convergence in the 5G Core network (5GC). Specifically, two objectives are included:

Work task #2: Whether and how to improve the support of devices connecting behind 5G-RG including:
Providing differentiated service (e.g. QoS and charging) for UE and Non-3GPP devices connected behind a 5G RG. This may imply s studying ways for 5GC to identify Non-3GPP devices connected behind a 5G RG and/or their traffic. Conclusions may differ for UE and for Non-3GPP devices.
Work task #3: Trusted/untrusted Non-3GPP access network: How to select a TNGF/N3IWF that supports the S-NSSAI(s) needed by the UE.

2 References p. 9

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 23.501: "System Architecture for the 5G System; Stage 2".

[3]

TS 23.502: "Procedures for the 5G system, Stage 2".

[4]

TS 23.503: "Policy and Charging Control Framework for the 5G System".

[5]

TS 23.316: "Wireless and wireline convergence access support for the 5G System (5GS)".

[6]

WiFi Alliance Technical Committee, Hotspot 2.0 Technical Task Group: "Hotspot 2.0 (Release 2) Technical Specification".

[7]

TS 38.413: "NG-RAN; NG Application Protocol (NGAP)".

[8]

TS 24.502: "Access to the 3GPP 5G Core Network (5GCN) via non-3GPP access networks".

[9]

TS 33.501: "Security architecture and procedures for 5G System".

[10]

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

[11]

TS 23.402: "Architecture enhancements for non-3GPP accesses".

[12]

TS 23.003: "Numbering, addressing and identification".

[13]

TS 29.303: "Domain Name System Procedures; Stage 3".

[14]

TS 24.501: "Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3".

3 Definitions of terms and abbreviations p. 10

3.1 Terms p. 10

For the purposes of the present document, the terms given in TR 21.905, in TS 23.501 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 or in TS 23.501.

Authenticable Non-3GPP (AUN3) devices:

A Non-3GPP device that the 5GC can authenticate.

Non Authenticable Non-3GPP (NAUN3) devices:

A Non-3GPP device that the 5GC cannot authenticate.

Non-3GPP devices:

A device that use Non-3GPP access technology to connect to the RG and does not support NAS over non 3GPP access.

3.2 Abbreviations p. 10

For the purposes of the present document, the abbreviations given in TR 21.905, in TS 23.501 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 or in TS 23.501.

4 Architectural Assumptions and Principles p. 10

For all objectives, the architectural assumptions and principles include:

The architecture of 5WWC (for Wireline, Trusted and Untrusted access to 5GC) as defined in TS 23.501 and TS 23.316 shall be used as a baseline,
The support of S-NSSAIs as defined in TEI17_N3SLICE shall be taken as baseline,
Before a solution that impacts the 5G RG or the wireline access network is selected, this solution shall be evaluated by BBF and/or CableLabs.