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Methods and apparatus for reducing the impact of RF interference based on estimation of colored noise

  • US 9,191,991 B2
  • Filed: 02/27/2013
  • Issued: 11/17/2015
  • Est. Priority Date: 02/27/2013
  • Status: Active Grant
First Claim
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1. A method in a mobile communication device for use in reducing the effect of interference, the mobile communication device comprising a first radio frequency (RF) transceiver operable in a first RF band and a second RF transceiver operable in a second RF band adjacent the first RF band, the method comprising:

  • (i) for each channel of multiple channels to be assessed, the multiple channels belonging to the first RF band;

    performing a predetermined communication function using the second RF transceiver;

    estimating a noise power spectrum on a channel being assessed of the first RF transceiver during performance of the predetermined communication function; and

    storing parameters which characterize the estimated noise power spectrum in association with an identifier of the channel being assessed; and

    (ii) when performing the predetermined communication function again using the second RF transceiver;

    identifying the channel on which the first RF transceiver is currently operating;

    retrieving the stored parameters that were stored in associated with the identified channel which characterize the estimated noise power spectrum; and

    applying the retrieved parameters to the first RF transceiver during reception on the identified channel.

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