The present disclosure provides a method and a device in wireless communication. In one embodiment, the UE first receives a first signaling, then receives a second signaling, and finally receives a first radio signal on target time-frequency resources; wherein the target time-frequency resources comprise time-frequency resources among second time-frequency resources other than first time-frequency resources, and the second signaling is used for determining whether the target time-frequency resources comprise the first time-frequency resources and the second time-frequency resources. The present disclosure makes effective use of the remaining time-frequency resources that transmit control information in a time interval less than 1 millisecond, thus improving resource utilization.