12 X2/Xn Interface related aspects
37.3403GPPMulti-connectivityNROverall descriptionRelease 17Stage 2TS
Stage 2 specification for X2-C procedures for EN-DC is contained in TS 36.300 [2].
Xn-C procedures for MR-DC with 5GC are specified in TS 38.423 [5].
X2-U procedures for EN-DC and Xn-U procedures for MR-DC with 5GC are specified in TS 38.425 [6].