Patent ID: 9716560
Date: 2017-07-25
CPC Classifications: H04B,H04H,H04L,H04W

Claim:
1. A wireless receiving device, comprising: a time-domain channel estimation circuit, generating channel information in a time domain according to a part of a received signal; a fast Fourier transform (FFT) circuit, coupled to the time-domain channel estimation circuit, transforming another part of the received signal and the channel information to a frequency domain to generate a plurality of sets of received data; an equalizer, coupled to the FFT circuit, adjusting the received data to generate a plurality of sets of complex equalized data; an adjusting unit, coupled to the equalizer, adjusting the sets of complex equalized data such that the sets of adjusted complex equalized data are closer to an origin of a complex plane; and a decision circuit, coupled to the adjusting unit, generating a plurality of sets of binary data according to the sets of adjusted complex equalized data, wherein the adjusting unit determines whether to adjust the sets of complex equalized data according to a first reference value, and adjusts the sets of complex equalized data when one of an absolute value of a real part and an absolute value of an imaginary part of each of the sets of complex equalized data is greater than the first reference value, wherein the adjusting unit simultaneously adjusts the real parts and the imaginary parts of the sets of complex equalized data according to a second reference value; the sets of complex equalized data before and after adjustment have phases that are the same, wherein the channel information comprises a channel length and a channel energy, and wherein the first reference value is inversely proportional to the channel length.