1. A method in user equipment for wireless communication, comprising:transmitting a first radio signal in a first time window, wherein the first radio signal comprises a first information and first data;
self-determining target time-frequency resources in a first resource pool; and
transmitting a third radio signal on the target time-frequency resources;
wherein the first information is used to determine whether the UE detects a first signaling in a second time window; the second time window is behind the first time window in time-domain; the first signaling comprises first scheduling information; and the first scheduling information comprises at least one of a Modulation and Coding Scheme, a New Data Indicator, a Redundancy Version, a HARQ process number, scheduled time domain resources, and scheduled frequency domain resources; and
wherein the first information is used to determine that the user equipment does not detect the first signaling in the second time window, the third radio signal comprises a second information and second data; the second information is used to determine whether the user equipment detects the first signaling in a third time window; and the third time window is behind the target time-frequency resources in time-domain.