1. A method for aligning discovery channel intervals of a serving cell and a neighbor cell, by a serving evolved node b (eNB)
managing the serving cell, in a cellular communication system, the method comprising:
selecting at least one user equipment (UE) being located in the serving cell and operates in a radio resource control (RRC)
transmitting, to the at least one UE, a request message requesting information related to a discovery channel of the neighbor
receiving, from the at least one UE, a temporally adjusted value obtained by shifting the discovery channel with respect to
a frame reference time of the neighbor cell, or a network time difference (NTD) between the serving cell and the neighbor
aligning a discovery channel interval of the serving cell to a discovery channel interval of the neighbor cell based on the
at least one of the temporally adjusted value, or the NTD.