Patent ID: 11882486
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. A terminal in a wireless communication system, the terminal comprising:
a transceiver; and
at least one processor configured to:
receive via the transceiver, from a source base station, a control message for a handover, the control message including information indicating that a data radio bearer (DRB) is configured for a dual active protocol stack (DAPS) handover, and
in case that an uplink data switching is requested from an upper layer, indicate, by a packet data convergence protocol (PDCP) entity for the DRB, a PDCP data volume excluding a PDCP Control protocol data unit (PDU) associated with the source base station, to a medium access control (MAC) entity for a target base station and indicate, by the PDCP entity for the DRB, a PDCP data volume of the PDCP Control PDU associated with the source base station, to a MAC entity for the source base station.