Patent ID: 8447001
Filing Date: 2013-05-21
Classification: H04L

Abstract:
1. An apparatus for performing channel estimation on a time-domain received signal through a channel, and a frequency-domain received signal corresponding to the time-domain received signal, the apparatus comprising: a time-domain estimating circuit to perform a channel estimation on the time-domain received signal in the time domain to output a time-domain estimated signal representing an estimation of a characteristic of the channel; a first frequency-domain converting circuit to convert the time-domain estimated signal into a frequency-domain estimated signal; an error computing circuit to produce an error signal based on the frequency-domain estimated signal and the frequency-domain received signal; and a compensation circuit to compensate the frequency-domain estimated signal in the frequency domain using the error signal so as to produce a final channel estimation signal representative of the characteristic of the channel; wherein the error computing circuit comprises: