3 Definitions, symbols and abbreviations

32.2533GPPCharging managementControl Plane (CP) data transfer domain chargingRelease 17Telecommunication managementTS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 [100] 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].

3.2 Symbols

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

Bcp Reference point for the CDR file transfer from CP data transfer CGF to the BD.

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

Rf Offline charging reference point between a MME/SCEF/IWK-SCEF and the CDF.

S6t Reference point between the SCEF and the HSS.

T6a Reference point between the SCEF and the serving MME.

T6ai Reference point between the IWK-SCEF and the serving MME.

T7 Reference point between the IWK-SCEF and the serving SCEF.

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].

BD Billing Domain

CDF Charging Data Function

CGF Charging Gateway Function

CIoT Cellular Internet of Things

CP Control Plane

CPCN Control Plane data transfer Charging Node (MME, SCEF, IWK-SCEF)

CPDT Control Plane Data Transfer

CTF Charging Trigger Function

IE Information Element

IWK-SCEF Interworking SCEF

NE Network Element

NIDD Non-IP Data Delivery

SCEF Service Capability Exposure Function