The present disclosure provides a method and a device in a node used for wireless communications. A first node receives a first signal in a first cell and receives a second signal in a second cell; and then transmits a target information set on a first channel; a serving cell identity of the first cell is a first ID, while a serving cell identity of the second cell is a second ID, the first ID being smaller than the second ID; when the second cell is capable of scheduling a target cell, a measurement on the second signal is used for generating the target information set. By associating the CSI transmission corresponding to a cell with whether the cell is capable of scheduling a PCell, the transmission of CSI under Cross-Carrier Scheduling can be optimized, thus improving the entire system's performance.