Section: 6.7.3.3 Intra-gNB-CU handover/intra-ng-eNB handover
Content: It is not required to change the AS security algorithms during intra-gNB-CU/intra-ng-eNB handover. If the UE does not receive an indication of new AS security algorithms during an intra-gNB-CU/intra-ng-eNB handover, the UE shall continue to use the same algorithms as before the handover (see TS 38.331[ NR; Radio Resource Control (RRC); Protocol specification ]  [22] for gNB and TS 36.331[ Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification ]  [69] for ng-eNB).