Section: 5.12 Charging 5.12.1 General
Content: 5GC supports interactions towards CHF for network resource usage, as defined in TS 32.240[ Telecommunication management; Charging management; Charging architecture and principles ]  [41]. The CHF and the Nchf service are defined in TS 32.290[ Telecommunication management; Charging management; 5G system; Services, operations and procedures of charging using Service Based Interface (SBI) ]  [67]. The SMF supports the interactions towards the CHF, as defined in TS 32.255[ Telecommunication management; Charging management; 5G data connectivity domain charging; Stage 2 ]  [68]. The UPF supports functionality to collect and report usage data to SMF. The N4 reference point supports the SMF control of the UPF collection and reporting of usage data. The AMF supports interactions towards the CHF, as defined in TS 32.256[ Charging management; 5G connection and mobility domain charging; Stage 2 ]  [114]. The SMSF supports interactions towards the CHF, as defined in TS 32.274[ Telecommunication management; Charging management; Short Message Service (SMS) charging ]  [118]. The NEF supports interactions towards the CHF, as defined in TS 32.254[ Telecommunication management; Charging management; Exposure function Northbound Application Program Interfaces (APIs) charging ]  [123].