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Multi-channel frequency domain equalizer for radio frequency interference cancellation

  • US 6,999,508 B1
  • Filed: 11/07/2000
  • Issued: 02/14/2006
  • Est. Priority Date: 11/07/2000
  • Status: Active Grant
First Claim
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1. A method of canceling communication system noise interference, the method comprising the steps of:

  • (a) receiving T blocks of data, Y(;

    , t), t=1, . . . , T, comprising T blocks of data, X(;

    ,t), t=1, . . . , T, transmitted over predetermined subchannels;

    (b) determining a set of the predetermined subchannels, k(n), to generate coefficients for a multichannel frequency domain equalizer (FEQ) of a subchannel n of the predetermined subchannels;

    (c) generating multichannel FEQ coefficients, g(n), for the subchannel n of the predetermined subchannels used to transmit the received T blocks of data; and

    (d) performing multichannel frequency domain equalization for the subchannel n using the generated multichannel FEQ coefficients;

    wherein the step of determining the set of the predetermined subchannels, k(n), for the subchannel n includes selecting subchannel n;

    wherein the step of determining the set of the predetermined subchannels, k(n), for the subchannel n further includes selecting neighboring subchannels to the subchannel n.

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