3 Definitions and abbreviations

32.2743GPPCharging managementRelease 17Short Message Service (SMS) chargingTelecommunication managementTS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in TR 21.905 [1], TS 32.240 [2] 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 [1] or TS 32.240 [2].

SMS node: An SMS node, in the present document, refers to either an SMS router, IP-SM-GW, SMS-SC, SMSF or a combination of these nodes.

3.2 Symbols

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

Bsm Reference point for the CDR file transfer from SMS CGF to the BD,

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

Nchf Service based interface exhibited by CHF.

N46 Reference point between SMS Node and the CHF.

Rf Offline charging reference point between a 3G network element and the CDF.

Ro Online charging reference point between a 3G network element and the OCS.T4 Reference point used between MTC-IWF and the SMS-SC in the HPLMN.

3.3 Abbreviations

For the purposes of the present document, the abbreviations given in TR 21.905 [1], TS 32.240 [2] and the following apply:

5GS 5G System

ECUR Event Charging with Unit Reservation

IEC Immediate Event Charging

PEC Post Event Charging

NCGI NR Cell Global Identity