Content for TS 29.594 Word version: 18.3.0
1 Scope p. 7
The present specification provides the stage 3 definition of the Spending Limit Control Service of the 5G System.
The 5G System Architecture is defined in TS 23.501. The stage 2 definition and related procedures for the Spending Limit Control Service are specified in TS 23.502 and TS 23.503.
The 5G System stage 3 call flows are provided in TS 29.513.
The Technical Realization of the Service Based Architecture and the Principles and Guidelines for Services Definition are specified in TS 29.500 and TS 29.501.
The Spending Limit Control Service is provided by the Charging Function (CHF) and enables the NF service consumer to retrieve policy counter status information. The internal CHF functionality for policy counter management provisioning is specified in TS 32.240.
2 References p. 7
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 29.500: "5G System; Technical Realization of Service Based Architecture; Stage 3".
[5]
TS 29.501: "5G System; Principles and Guidelines for Services Definition; Stage 3".
[6]
TS 23.503: "Policy and Charging Control Framework for the 5G System; Stage 2".
[7]
TS 32.240: "Charging architecture and principles; Stage 2".
[8]
RFC 7540: "Hypertext Transfer Protocol Version 2 (HTTP/2)".
[9]
OpenAPI: "OpenAPI Specification Version 3.0.0", https://spec.openapis.org/oas/v3.0.0 .
[10]
RFC 8259: "The JavaScript Object Notation (JSON) Data Interchange Format".
[11]
TS 29.571: "5G System; Common Data Types for Service Based Interfaces".
[12]
TS 29.513: "5G System; Policy and Charging Control signalling flows and QoS parameter mapping; Stage 3".
[13]
RFC 9457: "Problem Details for HTTP APIs".
[14]
TS 33.501: "Security architecture and procedures for 5G system".
[15]
RFC 6749: "The OAuth 2.0 Authorization Framework".
[16]
TS 29.510: "5G System; Network Function Repository Services; Stage 3".
[17]
TR 21.900: "Technical Specification Group working methods".
[18]
TS 29.512: "5G System; Session Management Policy Control Service; Stage 3".
[19]
TS 23.316: "Wireless and wireline convergence access support for the 5G System (5GS)".
3 Definitions and abbreviations p. 8
3.1 Definitions p. 8
For the purposes of the present document, the terms and definitions 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.
Nchf:
Service-based interface exhibited by Charging Function.
Policy counter:
A mechanism within the CHF to track spending applicable to a subscriber.
Policy counter identifier:
A reference to a policy counter in the CHF for a subscriber.
Policy counter status:
A label whose values are not standardized and that is associated with a policy counter's value relative to the spending limit(s) (the number of possible policy counter status values for a policy counter is one greater than the number of thresholds associated with that policy counter, i.e. policy counter status values describe the status around the thresholds). This is used to convey information relating to subscriber spending from CHF to PCF. Specific labels are configured jointly in CHF and PCF.
Spending limit:
A spending limit is the usage limit of a policy counter (e.g. monetary, volume, duration) that a subscriber is allowed to consume.
Spending limit report:
A notification, containing the current policy counter status generated from the CHF to the PCF.
3.2 Abbreviations p. 8
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.
5G-RG
5G Residential Gateway
CCS
Converged Charging System
CHF
Charging Function
CTS
Charging Trigger Function
FN-RG
Fixed Network Residential Gateway
GCI
Global Cable Identifier
GLI
Global Line Identifier
GPSI
Generic Public Subscription Identifier
NF
Network Function
NRF
Network Repository Function
PCF
Policy Control Function
SUPI
Subscription Permanent Identifier
W-AGF
Wireline Access Gateway Function
