4 Architecture reference model

32.2903GPP5G SystemCharging managementRelease 18Services, operations and procedures of charging using Service Based Interface (SBI)Telecommunication managementTS

4.1 General

The present document describes the service based architecture for 5G Charging.

4.2 Reference architecture

The NFs with CTF interact with CHF using Nchf interface for converged charging or offline only charging. The NF PCF interacts with CHF using Nchf interface for Spending Limit Control. The Nchf is a service based interface for NF and CHF.

Figure 4.2.1 depicts the reference architecture for the Nchf Interface.

Figure 4.2.1: Reference Architecture for the Nchf Interface; SBI representation