The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). The present disclosure provides a method of receiving downlink channel and/or downlink reference signal on an unlicensed band. An LTE user equipment (UE) receives control information of a cell operating on an unlicensed band, and receives downlink channel and/or downlink reference signal transmitted in the cell according to the control information. According to the present disclosure, data can be properly received on an unlicensed band.