Section: 5.3.4 Charging data correlation 5.3.4.0 General
Content: The charging data correlation combines charging events generated by CTF while they are belong to the same bearer / session / service resource usage. The correlation provides an association of charging information for the mobile subscriber’s resource usage. The correlation is based on specific access network charging identifier: - Circuit Switched domain: MSC address and Call Reference Number; - Packet Switched domain: P-GW address and EPC Charging ID; - 5G Data connectivity domain: 5GC Charging ID; - Fixed Broadband Access: Multimedia Charging ID; - IM Subsystem: IMS Charging Identifier. The charging information has to be aggregate for the same charging session and correlate for the same service.