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Interference detection for spread spectrum systems

  • US 6,130,907 A
  • Filed: 01/14/1998
  • Issued: 10/10/2000
  • Est. Priority Date: 01/14/1998
  • Status: Expired due to Term
First Claim
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1. A method for detecting interference in a spread spectrum system, comprising the steps of:

  • (a) generating received signal strength indication (RSSI) samples at a plurality of frequencies across a frequency range of the spread spectrum system;

    (b) generating statistics based on the RSSI samples;

    (c) analyzing the statistics; and

    (d) determining whether interference is present in the frequency range by determining whether the interference corresponds to (1) narrow-band interference occurring over a narrow-band frequency range or (2) wide-band interference over a wide-band frequency range, wherein;

    sizes of the narrow-band and wide-band frequency ranges are both smaller than the frequency range of the spread spectrum system; and

    the size of the narrow-band frequency range is smaller than the size of the wide-band frequency range.

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