Method and apparatus for measuring of UE-to-UE crosslink interference in wireless communication system

A base station in a wireless communication system, the base station comprising:

• a transceiver;
• and
• at least one processor coupled with the transceiver and configured to:
• in case that channel quality information included in a channel status information (CSI) report received from a user equipment (UE) is less than a first threshold, identify the UE as a victim UE;
• transmitting, to the victim UE, information indicating that CLI measurement is triggered;
• after the CLI measurement is triggered, receive, from the UE, cell-level measurement report comprising a result of measuring reference signal received power (RSRP) of multiple cell-level reference signals (RSs) of multiple cells adjacent to a first cell in which the UE is positioned;
• and
• identify, based on the cell-level measurement report, a cell corresponding to RSRP greater than or equal to a second threshold as an aggressor cell, and
• wherein the multiple cell-level RSs are transmitted with an identical sequence on an identical radio resource, and the first threshold and the second threshold are different from each other.