Patent ID: 11985554

Abstract:
The present disclosure relates to method and apparatus for performing mobility related to dual connectivity (DC) in wireless communication system. According to an embodiment of the present disclosure, a method performed by a radio access network (RAN) node in a wireless communication system comprises: transmitting a first message comprising secondary node (SN) mobility commands of candidate target primary secondary cells (PScells), each of the SN mobility commands being related to an index; and transmitting a second message comprising the index related to a first SN mobility command of a candidate target PScell among the SN mobility commands, and a second SN mobility command of the candidate target PScell, wherein the second SN mobility command includes parameter values of at least one first entry that are updated from those of the at least one first entry in the first SN mobility command, and excludes parameter values of at least one second entry that are included in the first SN mobility command.