METHOD AND APPARATUS FOR ESTIMATING A SIGNAL-TO-INTERFERENCE RATIO

  • US 20120127884A1
  • Filed: 01/30/2012
  • Published: 05/24/2012
  • Est. Priority Date: 02/26/2008
  • Status: Active Grant
First Claim
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1. A method of estimating signal power, the method comprising:

  • receiving a signal, wherein the signal carries modulated symbols and includes noise;

    transforming symbol energy of the signal to a real part and noise energy of the signal to an imaginary part by multiplying the signal with a complex conjugate of a second signal, wherein the second signal has a real component and an imaginary component; and

    computing signal power from the real part of the signal after the transformation.

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