Provided is a method of generating a Device-to-Device Synchronization Signal (D2DSS) by a terminal according to an embodiment of the present disclosure. The method includes determining a service attribute for identifying whether the terminal is serviced by at least one base station; and generating a D2DSS for identifying whether the terminal is serviced by the base station, based on the determination result. In addition, provided is a method of configuring D2D synchronization by a terminal according to an embodiment of the present disclosure. The method includes receiving a signal from at least one base station or another device; determining whether a synchronization signal is detected from the received signal; and when the synchronization signal is detected, configuring synchronization with the another device based on the timing reference of the detected synchronization signal.

A method adapts a time synchronization between a mobile device and a transceiver module of a plurality of transceiver modules, wherein the method is performed by the transceiver module. The method includes listening, in at least some of a plurality of time slots, for a time synchronization signal from a further transceiver module of the plurality of transceiver modules, wherein each time slot of the plurality of time slots is allocated to a corresponding transceiver module of the plurality of transceiver modules. The method also includes adapting the time synchronization when a received time synchronization signal has a higher estimated accuracy than the time synchronization between the mobile device and the transceiver module. The method further includes transmitting a time synchronization signal for the further transceiver modules based at least in part on the time synchronization between the mobile device and the transceiver module.