5g x2 interface

In the 5G architecture, the interconnection between various network elements is defined by a set of interfaces. Two of the key interfaces in the 5G architecture are:

1. NG (Next Generation) Interface (N1, N2, etc.):
   • N1: Represents the interface between the UE (User Equipment) and the gNB (Next Generation NodeB).
   • N2: Represents the interface between two gNBs for the purpose of Xn signaling.
   • N3: Represents the interface between the gNB and the AMF (Access and Mobility Management Function) for control plane signaling.
   • N4: Represents the interface between the gNB and the UPF (User Plane Function) for user plane data transfer.
   • N6: Represents the interface between the UPF and the SMF (Session Management Function).
2. Xn Interface:
   • The Xn interface connects two gNBs and supports user plane and control plane protocols.
   • It facilitates functions like handover between cells served by different gNBs and inter-gNB mobility.