System and procedure for network-assisted / ad-hoc device discovery protocol for device-to-device communications

摘要

A procedure of a user equipment (116), EU, in a wireless communication network, the procedure comprising: receiving, from an eNodeB (103), eNB, a first message for device-to-device discovery, D2D, comprising the first message information regarding a cell identifier, ID, for the generation of a synchronization signal; and transmit, to another EU (114), a synchronization signal in a frame based on the ID; and transmit, to the other EU (114), a configuration message indicating a frame number of the frame.