5GC PDU Session Establishment Flow with NRF/PCF/UPF Interactions
5G transports user traffic between the UE and external data networks as packet data units (PDUs). A PDU can be IP, Ethernet, or Unstructured, and the target data network is identified by a DNN (Data Network Name), analogous to the APN concept in EPC. The logical path that exchanges PDUs between a UE...