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Fuzzy logic control of cellular handoff

  • US 5,754,945 A
  • Filed: 01/18/1996
  • Issued: 05/19/1998
  • Est. Priority Date: 01/18/1996
  • Status: Expired due to Term
First Claim
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1. A method of controlling handoff in a cellular radio communications system, comprising the steps of:

  • monitoring parameters for use in determining handoffs;

    in a handoff triggering step, applying fuzzy logic procedures to at least one monitored parameter to selectively determine a trigger for handoff of a mobile terminal from a serving base station, via which the mobile terminal is communicating, to another base station from among a plurality of adjacent base stations;

    in a handoff targeting step separate from the handoff triggering step and responsive to the handoff trigger, applying fuzzy logic procedures to at least one monitored parameter to determine preferences for handoff of the mobile terminal to different ones of said plurality of adjacent base stations; and

    executing handoff of the mobile terminal from the serving base station to one of said plurality of adjacent base stations in accordance with said preferences.

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