An aspect of the disclosure includes a method for downlink reception in unlicensed band used by a UE, including: after a data burst transmitted in a unlicensed band, stopping monitoring a downlink channel in response to ending of the data burst; and in response to receiving a reference signal or in response to expiration of a time period, starting monitoring the downlink channel, wherein the data burst is transmitted via a first bandwidth part (BWP) and initiated by a base station.