5G Core (3GPP). It is 5G that is based on what is called Service-Based Architecture (SBA), which implements IT network principles and a cloud-native design approach. In this new architecture, each Network Function (NF) offers one or more services to other NFs via APIs (Application Programming Interfaces).
The 5G Core includes various functions: AUSF (Authentication Server Function), AMF (Core Access and Mobility Management Function), DN (Data Network), DSF (Data Storage Network Function), NRF (New Radio Repository Function), PCF (Policy Control Function), SMF (Session Management Function), UDM (UnifiedData Management) and UPF (User Plane Function).
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