a communication technique of fusing a 5th - generation communication for supporting higher data transmission rate beyond a 4th - generation system with an internet of things technology and a system thereof are provided . the present disclosure may be used for an intelligent service based on the 5g communication technology and the iot related technology . a communication method of a base station includes generating resource assignment information of an uplink burst including at least two consecutive uplink subframes of an unlicensed band ; transmitting the resource assignment information to a terminal ; and receiving uplink data from the terminal during the at least two consecutive uplink subframes .