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Symbol-Wise Channel Tracking For SUN OFDM

  • US 20140307813A1
  • Filed: 12/31/2013
  • Published: 10/16/2014
  • Est. Priority Date: 04/10/2013
  • Status: Active Grant
First Claim
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1. A device for updating channel gain estimates for orthogonal frequency division multiplexed (OFDM) symbols, comprising:

  • a receiver to receive a plurality of OFDM symbols, wherein each OFDM symbol includes a plurality of pilot tones at a subset of odd positions; and

    a finite impulse response (FIR) filter configured to;

    filter a plurality of channel estimates of odd tones of an OFDM symbol using a first set of coefficients to generate an updated estimate of the channel estimates of the plurality of odd tones for that OFDM symbol, andfilter the plurality of the channel estimates of the odd tones of the OFDM symbol using a second set of coefficients to generate estimates for a plurality of initial channel estimates of even tones for that OFDM symbol.

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