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Method and device for maintaining the performance quality of a communication system in the presence of narrow band interference

  • US 8,634,386 B2
  • Filed: 08/24/2012
  • Issued: 01/21/2014
  • Est. Priority Date: 02/02/1999
  • Status: Expired due to Fees
First Claim
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1. A method, comprising:

  • analyzing, by a processor, a wide frequency band with respect to signal power levels in specified narrow frequency bands;

    detecting narrow band signal power levels received in the specified narrow frequency bands, wherein the detecting of the narrow band signal power levels includes performing frequency shifting for a guard band of the wide frequency band to generate RSSI measurements for the guard band;

    determining an average wideband power level from less than all of the narrow band signal power levels;

    determining an adaptive threshold from one of the average wideband power level, the narrow band signal power levels, or both;

    detecting interference associated with a channel according to the adaptive threshold; and

    configuring a filter according to the detected interference to suppress at least a first portion of signals of the channel.

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