Patent ID: 8693394

Claim:
A method of discovering a neighbor cell by a terminal, the method comprising: determining whether a first Primary Synchronization Channel (PSCH) of a first cell in which the terminal is included is identical to a second PSCH of a second cell, and whether timings of the first cell and the second cell are synchronous, wherein the first cell is serviced by a first base station and the second cell is serviced by a second base station, and wherein the terminal receives the first PSCH from the first base station and receives the second PSCH from the second base station; estimating third channel information of the second cell based on subtracting second channel information of the first cell from first channel information, when the first PSCH is identical to the second PSCH and the timings of the first cell and the second cell are synchronous, the second channel information being estimated using a first Secondary Synchronization Channel (SSCH) of the first cell, and the first channel information being estimated using the first PSCH and the second PSCH; and detecting a second SSCH of the second cell using the third channel information, wherein the second SSCH of the second cell is different than the first SSCH of the first cell, and detecting a cell identifier (ID) of the second cell using the second SSCH.