Patent ID: 8537940

Claim:
A wireless communication system comprising: a frequency down-converting circuit for receiving a wireless signal and for performing frequency down-conversion on the wireless signal to output a frequency down-converted signal; a synchronizing circuit, coupled to the frequency down-converting circuit, including a first training circuit for performing frequency comparison between the frequency down-converted signal and a plurality of candidate carrier signals having different frequencies so as to determine a plurality of selected carrier signals from the candidate carrier signals, and a second training circuit, for performing phase comparison between the frequency down-converted signal and phases of a first pseudo-noise sequence at each of the selected carrier signals so as to determine a first matching phase associated with one of the selected carrier signals, and setting at least one of the selected carrier signals corresponding to the first matching phase as a first matching carrier; and a first demodulator, coupled to the frequency down-converting circuit and the synchronizing circuit, for demodulating the frequency down-converted signal according to the first matching carrier and the first matching phase so as to generate a demodulated signal.