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Method and arrangement for noise variance and SIR estimation

  • US 7,590,388 B2
  • Filed: 08/05/2004
  • Issued: 09/15/2009
  • Est. Priority Date: 08/07/2003
  • Status: Active Grant
First Claim
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1. A method for noise variance estimation of a detected signal, the method comprising:

  • receiving a wireless signal and producing, from an input of the received wireless signal to a detector, a detected signal, wherein the detected signal is an output from the detector;

    producing, from the received wireless signal, a first noise variance signal representative of noise variance in the received wireless signal; and

    producing, from the detected signal and the first noise variance signal, a second noise variance signal representative of noise variance estimation of the detector in the received signal.

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