A network node adapted to perform operations to control device-to-device, D2D, transmission by a user equipment, UE, of a channel state information, CSI, report and/or a CSI reference signal, CSI-RS, the operations comprising:
- determining a criteria to be used by the UE for selection of a CSI report and/or CSI-RS transmission resource and a data transmission resource within an overlapping region of a CSI selection window and a data selection window, wherein resource selection for the CSI report and/or CSI-RS transmission resource and the data transmission resource is conducted simultaneously, wherein the CSI selection window includes a first time interval that differs from a second time interval that corresponds to the data selection window;
- and
- transmitting an indication of the criteria to the UE.