METHOD FOR IMPLEMENTING SYNCHRONIZATION BETWEEN D2D DEVICES AND A D2D DEVICE

摘要

Embodiments of the present invention provide a method for implementing synchronization between D2D devices, for a D2D device which is able to detect the synchronization source of the cellular network and is located at the edge of the cellular cell, if the D2D synchronization signal of the same level D2D device cannot be detected within a certain area, D2D signal is continuously transmitted with a particular period. And according to a detected result of the synchronization signal of the next level device, the transmission density of the D2D synchronization signal is adjusted. For a D2D synchronization device which is able to detect the synchronization source of the cellular cell, D2D synchronization signal is transmitted in response to a trigger synchronization signal triggered by a D2D device outside the coverage of the synchronization source of the cellular network. For a D2D device which is outside the coverage of the synchronization source of the cellular cell, synchronization signal is transmitted/detected or trigger synchronization signal is transmitted according to actions of the D2D device in the coverage of the synchronization source of the cellular cell. According to the technical solution provided by the present disclosure, synchronization between D2D devices may be implemented effectively.