A method of transmitting and receiving a signal by a serving base station (BS) in a wireless communication system is disclosed. The method includes receiving, from a user equipment (UE), an uplink (UL) signal including a cell identifier (ID) of a first BS transmitting a downlink (DL) signal to the UE, determining whether the cell ID of the first BS is identical to a cell ID of the serving BS, transmitting a DL signal to the UE based on the cell ID of the first BS being identical to the cell ID of the serving BS, and transmitting information on the UL signal to the first BS based on the cell ID of the first BS being different from the cell ID of the serving BS. The UE supports full-duplex radio, and the UL signal includes a feedback for a DL signal transmitted by the first BS.