METHOD AND APPARATUS FOR INTEGER FREQUENCY OFFSET ESTIMATION IN WIRELESS COMMUNICATION SYSTEM
摘要
<p>A method and apparatus for time synchronization and an OFDMA receiver thereof are provided. The method may include performing a differential phase correlation in frequency domain based on one received sequence and one reference preamble; and detecting the integer frequency offset based on the result of the differential phase correlation. Advantageously, the present invention allows using one OFDM symbol to estimate ICFO and using a simple method to facilitate the ICFO detection. Moreover, the performance of the integer frequency offset estimation becomes more robust in the high noise and time-variant fading channels, with reduced hardware complexity.</p>
