A method of transmitting and receiving a signal by a user equipment (UE) in a wireless communication system is disclosed. The method includes receiving, from a base station (BS), a capability enquiry message requesting a capability of the UE, transmitting, to the BS, a capability information message including information on the capability of the UE based on the capability enquiry message, and receiving, from the BS, resource allocation information for resource allocated based on the capability information message. The capability information message includes information indicating whether the UE supports full-duplex (FD) mode for at least one combination of a downlink (DL) channel and an uplink (UL) channel.