ETSI - TS 138 423
5G; NG-RAN; Xn Application Protocol (XnAP)
|Publication Date:||1 November 2020|
The present document specifies the radio network layer signalling procedures of the control plane between NG-RAN nodes in NG-RAN. XnAP supports the functions of the Xn interface by signalling procedures defined in this document. XnAP is developed in accordance to the general principles stated in TS 38.401  and TS 38.420 .