3 Definitions, symbols and abbreviations

32.2903GPP5G SystemCharging managementRelease 18Services, operations and procedures of charging using Service Based Interface (SBI)Telecommunication managementTS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [100], TS 32.240 [1] and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in either 3GPP TR 21.905 [100] or TS 32.240 [1].

5G Access Network: An access network comprising a NG-RAN and/or non-3GPP AN connecting to a 5G Core Network.

5G Core Network: The core network specified in the present document. It connects to a 5G Access Network.

NF service: a functionality exposed by a NF through a service based interface and consumed by other authorized NFs.

NF service operation: An elementary unit a NF service is composed of.

service based interface: It represents how a set of services is provided/exposed by a given NF.

charging session: The association between the CHF (NF Service Producer) that provides the charging service and NF service consumer.

3.2 Symbols

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

Nchf Service-based interface exhibited by Charging Function.

3.3 Abbreviations

For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [100] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [100].

5GC 5G Core Network

5GS 5G System

AMF Access and Mobility Management Function

CCS Converged Charging System

CEF Charging Enablement Function

CHF Charging Function

IEC Immediate Event Charging

MMS Multimedia Messaging Service

MnS Management Service

NF Network Function

PCF Policy Control Function

SBI Service based Interface

SMSF Short Message Service Function

SMF Session Management Function