3 Definitions of terms, symbols and abbreviations

32.2983GPPCharging Data Record (CDR) parameter descriptionCharging managementRelease 18Telecommunication managementTS

Tools: ARFCN - Frequency Conversion for 5G NR/LTE/UMTS/GSM

3.1 Terms

For the purposes of the present document, the terms and definitions given in TR 21.905 [100], TS 32.240 [1] and TS 32.297 [42] as well as the following apply:

Billing Domain (BD): part of the operator network, which is outside the core network, which receives and processes CDR files from the core network charging functions. It includes functions that can provide billing mediation and billing or other (e.g. statistical) end applications. It is only applicable to offline charging (see "Online Charging System" for equivalent functionality in online charging).

Charging Data Record (CDR): formatted collection of information about a chargeable event (e.g. time of call set-up, duration of the call, amount of data transferred, etc) for use in billing and accounting. For each party to be charged for parts of or all charges of a chargeable event a separate CDR is generated, i.e. more than one CDR may be generated for a single chargeable event, e.g. because of its long duration, or because more than one charged party is to be charged.

offline charging: charging mechanism where charging information does not affect, in real-time, the service rendered.

online charging: charging mechanism where charging information can affect, in real-time, the service rendered and therefore a direct interaction of the charging mechanism with bearer/session/service control is required.

3.2 Symbols

For the purposes of the present document, the following symbols as specified in TR 21.905 [100], TS 32.240 [1],
TS 32.297 [52], TS 23.060 [202] and the following apply:

Bx The Interface between a Charging Gateway Function (CGF) and the Billing Domain (BD)

Bns Reference point for the CDR file transfer from the Network slice CGF to the BD.

Ga Interface between a node transmitting CDRs (i.e. CDF) and a CDR receiving functionality (CGF)

Gn Interface between two GSNs within the same PLMN.

Gp Interface between two GSNs in different PLMNs. The Gp interface allows support of GPRS network services across areas served by the co-operating GPRS PLMNs.

Rf Offline Charging Reference Point between a Charging Trigger Function (CTF) and the Charging Data Function (CDF)

3.3 Abbreviations

For the purposes of the present document, the abbreviations given in 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 TR 21.905 [100].

5GS 5G System

3GPP 3^rd Generation Partnership Project

ADC Application Detection and Control

ATSSS Access Traffic Steering, Switching, Splitting

ASN.1 Abstract Syntax Notation One

BD Billing Domain

BER Basic Encoding Rules

CS Circuit Switched

CDF Charging Data Function

CDIV Communication Diversion

CDR Charging Data Record

CEF Charging Enablement Function

CGF Charging Gateway Function

CIoT Cellular Internet of Things

CP Control Plane

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

CSG Closed Subscriber Group

CSG ID Closed Subscriber Group Identity

CTF Charging Trigger Function

FBC Flow Based Charging

GPRS General Packet Radio Service

ISC IMS Service Control

IM IP Multimedia

IMS IM Subsystem

IMS-AGW IMS Access Media Gateway

ISO International Organisation for Standardisation

ITU International Telecommunication Union

IP Internet Protocol

IWK-SCEF Interworking SCEF

LAN Local Area Network

LCS LoCation Service

MCC Mobile Country Code

MME Mobility Management Entity

MMS Multimedia Messaging Service

MMTEL MultiMedia Telephony

MnS Management Service

MNC Mobile Network Code

NetLoc Network provided Location information

NIDD Non-IP Data Delivery

NNI Network to Network Interface

PCN Packet switched Core network Node (SGSN, S–GW, P–GW, TDF)

PER Packed Encoding Rules

P-GW PDN GateWay

PCC Policy and Charging Control

PLMN Public Land Mobile Network

PS Packet Switched

QBC QoS flow Based Charging

RG Residential Gateway

RDI Restricted Digital Information

S-GW Serving GateWay

SCUDIF Service Change and UDI/RDI Fallback

SMF Session Management Function

SMS Short Message Service

TDF Traffic Detection Function

TrGW Transition GateWay

UDI Unrestricted Digital Information

TWAG Trusted WLAN Access Gateway

TWAN Trusted WLAN Access Network

UMTS Universal Mobile Telecommunications System

UWAN Untrusted Wireless Access Network

WLAN Wireless LAN

XER XML Encoding Rules

XML eXtensible Mark-up Language