5G: focus on N3IWF, TNGF, TWIF and W-5GAN
In the evolution of mobile networks from 3G to 4G and 5G, a key aspect is the separation between control plane and user plane. This separation, called CUPS (Control and User Plane Separation), is supported by the strict definition by 3GPP of a set of Network Functions (NFs) and interfaces within the Core Network (CN)…