Table of Contents of Series Articles
Basic concepts of 5G/NR 5G core network (5GC)
5G/NR 5G core network (5GC) network functions and entities
5G/NR 5G core network (5GC) non-roaming reference architecture
5G/NR 5G core network (5GC) network function service communication
1. 5GS roaming reference architecture
The 5G architecture is defined as service-based , and the interaction between network functions is expressed in the following two ways :
1) A service-based representation , where NFs within the control plane enable other authorized NFs to access their services, and this representation also includes point-to-point reference points when necessary.
2) Reference point representation , showing that there is interaction between NF services in the NF described by point-to-point reference points between any two NFs.
NFs in the 5GC control plane can only interact using service-based interfaces. The service interfaces, reference points and Chinese names of NFs between NFs can be found in