| 摘要 |
A wireless communication system, an apparatus and a method for processing a received OFDM signal is provided. The wireless communication system comprises an interface and a processing apparatus. The interface is configured to receive a received OFDM signal. The processing apparatus comprises an estimation module and a calculation module. The estimation module is configured to estimate an auto-correlation matrix relating to the received OFDM signal, with the auto-correlation matrix comprising a plurality of elements. Then, the calculation module is configured to calculate an amplitude and a phase for each of the elements to determine the carrier frequency offset (CFO) and timing offset (TO) of the received OFDM signal according to the amplitudes and phases. By exploiting the auto-correlation matrix of the received OFDM signal, the CFO and TO can be derived efficiently.
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