Patent ID: 8855224

Claim:
A synchronization method for a receiver, the method comprising: generating, by a beacon detector, an operating signal by performing a logic operation on a baseband signal; estimating, by a coarse sync block, a noise level of the operating signal to obtain an estimated noise level, and calculating a coarse fast Fourier transform (FFT) window start position value where a signal-to-noise ratio is maximized according to the estimated noise level; calculating, by a channel impulse response block, a channel impulse response signal by receiving a sync symbol of the baseband signal; and estimating, by a fine sync block, a channel delimiter value based on the channel impulse response signal and calculating a fine FFT window start position value by using the estimated channel delimiter value, wherein calculating the fine FFT window start position value further comprises: receiving the channel impulse response signal and calculating an updated channel impulse response signal by c _ ⁡ ( n ) = c ⁡ ( n ) ,  c ⁡ ( n )  2 > 4 2048 ⁢ ∑ k = 0 2047 ⁢  c ⁡ ( k )  2 , 0 , otherwise wherein c (n) indicates the updated channel impulse response signal, c(n) indicates the channel impulse response signal, and k indicates an integer, respectively.