Patent ID: 7912012

Claim:
A method of performing cell selection at an orthogonal frequency division multiplexing (OFDM) receiver comprising: at each of at least one receive antenna, sampling a received signal to produce a respective set of time domain samples; determining at least one coarse synchronization position; at each of the at least one receive antenna: a) performing a frequency domain correlation between at least one received common synchronization sequence extracted from common synchronization channel sub-carriers in the received signal and a corresponding common synchronization sequence of a respective plurality of transmit antennas to identify a plurality of candidate correlation peaks; b) from the plurality of candidate correlation peaks, selecting the M strongest correlation peaks for further processing, where M is an integer equal to or greater than 1; c) at each correlation peak, reconverting time domain samples into frequency domain components and processing pilot channel sub-carriers, these containing transmitter specific information, to identify a transmitter associated with each correlation peak; d) determining a carrier-to-interference (C/I) value for each transmitter thus identified; selecting the transmitter having the largest C/I value determined for any of the at least one receive antenna.