Content for TR 23.700-85 Word version: 18.0.0
1 Scope
2 References
3 Definitions of terms and abbreviations
3.1 Terms
3.2 Abbreviations
4 Architectural Assumptions and Principles
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1 Scope p. 10
This study focuses on key issue description, solution and conclusion on the enhancement of 5G UE Policy aspect by covering following objectives:
- URSP rule provisioning and updating procedures for home-routed and LBO roaming scenario, while keeping the existing framework of policy control based on HPLMN.
- Investigate whether and how the network can be made aware when the UE enforces URSP rule and investigate whether and what actions the 5G network can perform.
- Investigate if enhancements are needed for provisioning UE with consistent URSP across 5GC and EPC, and study the mechanism if needed.
- Investigate how to support standardized and operator-specific traffic categories in the traffic descriptor of URSP.
2 References p. 10
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 (5GS); Stage 2".
[4]
TS 23.503: "Policy and charging control framework for the 5G System (5GS); Stage 2".
[5]
TS 23.548: "5G System Enhancements for Edge Computing; Stage 2".
[6]
TS 23.434: "Service Enabler Architecture Layer for Verticals (SEAL); Functional architecture and information flows".
[7]
TS 24.501: "Non-Access-Stratum (NAS) protocol for 5G System (5GS); Stage 3".
[8]
TS 23.401: "General Packet Radio Service (GPRS) enhancements for Evolved Universal Terrestrial Radio Access Network (E-UTRAN) access".
[9]
TS 29.525: "5G System; UE Policy Control Service; Stage 3".
[10]
TS 24.526: "User Equipment (UE) policies for 5G System (5GS); Stage 3".
[11]
TS 29.503: "5G System; Unified Data Management Services; Stage 3".
[12]
TS 23.304: "Proximity based Service (ProSe) in the 5G System (5GS); Stage 2".
[13]
TS 32.421: "Telecommunication Management; Subscriber and equipment trace; Trace concepts and requirements".
[14]
TS 29.244: "Interface between the Control Plane and the User Plane nodes".
[15]
TS 29.519: "5G System; Usage of the Unified Data Repository Service for Policy Data, Application Data and Structured Data for Exposure; Stage 3".
3 Definitions of terms and abbreviations p. 11
3.1 Terms p. 11
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 Abbreviations p. 11
4 Architectural Assumptions and Principles p. 11
- Solutions using the ePCO to transfer URSP Rules via EPC assumes that the UE is registered in an MME supporting 5GS interworking, and as such transferring of ePCO in the PDN Connection signalling is supported by the MME and SGW. It is also assumed that the SMF+PGW-C selected for a PDN Connection established to a specific APN supports UE policy delivery service (i.e. SMF+PGW-C supports sending and receiving of a UE Policy Container to/from the UE).
