For the purposes of the present document, the terms and definitions given in
TR 21.905,
TS 32.240 and the following apply:
Billing Domain:
part of the operator network, which is outside the telecommunication network that receives and processes charging information 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:
function within the telecommunications network and the associated OCS/BD components whereby information related to a chargeable event is collected, formatted, transferred and evaluated in order to make it possible to determine usage for which the charged party may be billed (offline charging) or the subscriber's account balance may be debited / credited (online charging).
Charging Data Record (CDR):
formatted collection of information about one or more chargeable event(s) (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 the chargeable event(s) 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.
charging function:
entity inside the core network domain, subsystem or service that is involved in charging for that domain, subsystem or service.
circuit switched domain:
domain within GSM / UMTS in which information is transferred in circuit switched mode.
domain:
part of the 3GPP telecommunication network that provides network resources using a certain bearer technology.
GPRS:
packet switched bearer and radio services for GSM and UMTS systems.
middle tier TS:
term used for the 3GPP charging TSs that specify the domain / subsystem / service specific, online and offline, charging functionality. These are all the TSs in the numbering range from TS 32.250 to TS 32.27x; e.g.
TS 32.250 for the CS domain, or
TS 32.270 for the MMS service. Currently, there is only one
"tier 1" charging TS in 3GPP, which is
TS 32.240 that specifies the charging architecture and principles. Finally, there are a number of top tier charging TSs in the 32.29x [5x] numbering range that specify common charging aspects such as parameter definitions, encoding rules, the common billing domain interface or common charging applications.
near real-time:
near real-time charging and billing information is to be generated, processed, and transported to a desired conclusion in less than one (1) minute.
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 session/service control is required.
packet switched domain:
domain in which data is transferred between core network elements.
real-time:
real-time charging and billing information is to be generated, processed, and transported to a desired conclusion in less than 1 second.
For the purposes of the present document, the following symbols apply:
Bam
Reference point for the CDR file transfer from the 5G connection and mobility CGF to the BD.
Bc
Reference point for the CDR file transfer from the Circuit Switched CGF to the BD.
Bcp
Reference point for the CDR file transfer from the CP data transfer CGF to the BD.
Bd
Reference point for the CDR file transfer from the 5G Data Connectivity CGF to the BD.
Bea
Reference point for the CDR file transfer from the Exposure function API CGF to the BD.
Bec
Reference point for the CDR file transfer from the Edge Computing CGF to the BD.
Bi
Reference point for the CDR file transfer from the IMS CGF to the BD.
Bl
Reference point for the CDR file transfer from the GMLC CGF to the BD.
Bm
Reference point for the CDR file transfer from the MMS CGF to the BD.
Bmb
Reference point for the CDR file transfer from the MBMS CGF to the BD.
Bmn
Reference point for the CDR file transfer from the Monitoring Event CGF to the BD.
Bns
Reference point for the CDR file transfer from the Network slice CGF to the BD.
Bnsac
Reference point for the CDR file transfer from the NSACF CGF to the BD.
Bnssaa
Reference point for the CDR file transfer from the NSSAAF CGF to the BD.
Bo
Reference point for the CDR file transfer from the OCF CGF to the BD.
Bp
Reference point for the CDR file transfer from the Packet Switched CGF to the BD.
Bpr
Reference point for CDR file transfer between ProSe CGF and the BD.
Bs
Reference point for the CDR file transfer for CAMEL services to the BD, i.e. from the SCF CGF to the BD.
Bsm
Reference point for the CDR file transfer from SMS CGF to the BD
Bt
Reference point for the CDR file transfer from the PoC CGF to the BD.
Btsn
Reference point for the CDR file transfer from the TSN CGF to the BD.
Bw
Reference point for the CDR file transfer from the WLAN CGF to the BD (discontinued in Release 12).
Bx
Reference point for CDR file transfer between any (generic) 3G domain, subsystem or service CGF and the BD.
Ga
Reference point for CDR transfer between a CDF and the CGF.
Rf
Offline Charging Reference Point between the CTF within a 3G network entity and the CDF.
For the purposes of the present document, the following abbreviations apply:
bcd
binary coded decimal
BD
Billing Domain
CAMEL
Customised Applications for Mobile network Enhanced Logic
CDF
Charging Data Function
CDR
Charging Data Record
CGF
Charging Gateway Function
CP
Control Plane
CS
Circuit Switched
CTF
Charging Trigger Function
EPS
Evolved Packet System
E-UTRAN
Evolved Universal Terrestrial Radio Access Network
FTP
File Transfer Protocol
GMLC
Gateway MLC
GPRS
General Packet Radio Service
IMS
IP Multimedia Subsystem
IP
Internet Protocol
IPDR
Internet Protocol Detail Record
I-WLAN
Interworking WLAN
LAN
Local Area Network
MBMS
Multimedia Broadcast/Multicast Service
MLC
Mobile Location Center
MMS
Multimedia Messaging Service
OAM&P
Operation, Administration, Maintenance and Provisioning
OCF
Online Charging Function
OCS
Online Charging System
PoC
Push-to-talk over Cellular
ProSe
Proximity-based Services
PS
Packet Switched
SCF
Service Control Function
SMS
Short Message Service
TSN
Time sensitive networking
UTC
Universal Time Coordinated
WLAN
Wireless LAN