The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method performed by a terminal in a communication system is provided. The method includes receiving, from a first base station, a first message including first information used for detection of consistent uplink listen before talk (LBT) failures for the first base station, receiving, from the first base station, a second message for a handover to a second base station, the second message including second information for a reconfiguration with sync, in case that third information configuring at least one dual active protocol stack (DAPS) bearer is included in the second message and an indication of the consistent uplink LBT failures for the first base station is identified based on the first information while performing a procedure associated with the handover, suspending data communication of all data radio bearers (DRBs) associated with the first base station.