3 Definitions, symbols and abbreviations

32.2543GPPCharging managementExposure function Northbound Application Program Interfaces (APIs) chargingRelease 17Telecommunication 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].

3.2 Symbols

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

Bea Reference point for the CDR file transfer from the Exposure function API CGF to the BD.

Ga Reference point for CDR transfer between a CDF and the CGF.

Nchf Service based interface exhibited by CHF.

N44 Reference point between the NEF and the CHF

Rf Offline charging reference point between a SCEF and the CDF.

Ro Online charging reference point between a SCEF and the CDF.

T8 Reference point between the SCEF and SCS/AS.

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].

AS Application Server

BD Billing Domain

CDF Charging Data Function

CGF Charging Gateway Function

CTF Charging Trigger Function

ECUR Event Charging with Unit Reservation

IE Information Element

IEC Immediate Event Charging

NEF Network Exposure Function

PEC Post Event Charging

SCEF Service Capability Exposure Function

SCS Services Capability Server

SGSN Serving GPRS Support Node

RCAF RAN Congestion Awareness Function