Patent ID: 8050342

Claim:
A method for receiving coded signals with the aid of channel state information (CSI), comprising: performing channel estimation to obtain a channel frequency response CFR estimation vector, ĥ=[ĥ 0 , ĥ 1 , . . . , ĥ N−1 ] T ; computing a squared magnitude of the CFR estimation, |ĥ k | 2 , on each subcarrier k=0, 1, . . . , N−1, and obtaining a normalization factor α by averaging the squared magnitudes of CFR estimations on all N subcarriers; finding a norm-shift operand m satisfying the condition that α 0 =2 m is a power of 2 number closest to the normalization factor α; performing a CSI-aided one-tap channel equalization on an output signal vector y=[y 0 , y 1 , . . . , y N−1 ] T which is generated from a discrete Fourier transform (DFT) processor, for achieving an equalized signal vector z=[z 0 , z 1 , . . . z N−1 ] T by using the norm-shift operand m; performing constellation demapping; and performing channel decoding.