Patent ID: 8995589
Filing Date: 2015-03-31
Classification: H03L,H04L

Abstract:
1. A computer-implemented method of estimating a channel in a pilot assisted OFDM system, the computer-implemented method comprising: receiving an RF signal; down-converting the RF signal to a baseband signal; converting the baseband signal to a digital baseband signal; converting the digital baseband signal to a frequency-domain signal, the frequency-domain signal including an OFDM symbol having a plurality of data carriers and a plurality of pilot tones; extracting at least a subset of the plurality of pilot tones; filtering the extracted pilot tones; obtaining a channel impulse response from the filtered pilot tones, the channel impulse response comprising a plurality of taps; selecting a number of taps from the plurality of taps; converting the selected number of taps into a channel frequency response; and filtering the channel frequency response.