The Xn User plane (Xn-U) interface is defined between two NG-RAN nodes. The transport network layer is built on IP transport and GTP-U is used on top of UDP/IP to carry the user plane PDUs. ... The Xn control plane interface (Xn-C) is defined between two NG-RAN nodes.

What is an interface in 5G?

In LTE networks, X2 and S1 interface are defined as an interfaces between RAN nodes and between RAN and Core Network. 5G is expect to operate in two modes as non -standalone and standalone mode of operation. ... Interface between RAN Node as X2/Xn. Interface between RAN and Core Network as S1/NG.

What is X2 interface?

X2 interface. A point-to-point logical interface between two eNodeBs with the E-UTRAN. It supports the exchange of signaling information between two eNodeBs and supports the forwarding of protocol data units (PDUs) to the respective tunnel endpoints. X2 Application Protocol (X2AP) Protocol used by the X2 interface.