A method implemented at a network node configured for operation in a wireless communication network, said method comprising: determining a Device-to-Device, D2D, activity status of a wireless device that is registered in the wireless communication network associated with the network node, wherein the wireless device has network communications capability and D2D communications capability with other wireless device; and adapting one or both of network and D2D operations with respect to the wireless device, in dependence on the determined D2D activity status, wherein the D2D activity status of the wireless device is determined from an indication of D2D-related activity of the wireless device, wherein the indication of D2D-related activity is received from the wireless device, wherein the indication of D2D-related activity is a radio resource request for a D2D link with said other wireless device, wherein the indication of D2D-related activity indicates one of that: the wireless device is active on the D2D link; the wireless device will be active on the D2D link at a certain scheduled time or within a certain window of time; the wireless device is not active on the D2D link; the wireless device will stop being active on the D2D link at a certain scheduled time or within a certain window of time; and the wireless device is performing, or will perform, a D2D communication operation, wherein determining the D2D activity status comprises determining one or more Discontinuous Reception, DRX, and/or Discontinuous Transmission, DTX, timing parameters in use at the wireless device with respect to the D2D link, and wherein adapting the one or both of network and D2D operations with respect to the wireless device comprises: configuring the wireless device with an activity state configuration adapted for the D2D-related activity, wherein the activity state configuration includes the one or more DTX and DRX timing parameters adapted for the D2D-related activity on the D2D link; and sending the activity state configuration to the wireless device. determining a Device-to-Device, D2D, activity status of a wireless device that is registered in the wireless communication network associated with the network node, wherein the wireless device has network communications capability and D2D communications capability with other wireless device; and adapting one or both of network and D2D operations with respect to the wireless device, in dependence on the determined D2D activity status, the wireless device is active on the D2D link; the wireless device will be active on the D2D link at a certain scheduled time or within a certain window of time; the wireless device is not active on the D2D link; the wireless device will stop being active on the D2D link at a certain scheduled time or within a certain window of time; and the wireless device is performing, or will perform, a D2D communication operation, wherein determining the D2D activity status comprises determining one or more Discontinuous Reception, DRX, and/or Discontinuous Transmission, DTX, timing parameters in use at the wireless device with respect to the D2D link, and wherein adapting the one or both of network and D2D operations with respect to the wireless device comprises: configuring the wireless device with an activity state configuration adapted for the D2D-related activity, wherein the activity state configuration includes the one or more DTX and DRX timing parameters adapted for the D2D-related activity on the D2D link; and sending the activity state configuration to the wireless device. configuring the wireless device with an activity state configuration adapted for the D2D-related activity, wherein the activity state configuration includes the one or more DTX and DRX timing parameters adapted for the D2D-related activity on the D2D link; and sending the activity state configuration to the wireless device.