1. A method performed by a terminal in a wireless communication system, the method comprising:receiving uplink transmission information for generating at least one transport block (TB) before a pre-listen interval;
receiving information for indicating the pre-listen interval;
transmitting a reporting signal for indicating that a channel of an unlicensed band is detected to be idle during the pre-listen interval;
receiving resource allocation information for indicating uplink resources in the channel of the unlicensed band allocated based on the reporting signal; and
transmitting uplink data according to the at least one TB through the uplink resources.