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System for automated determination of handoff neighbor list for cellular communication systems

  • US 6,119,005 A
  • Filed: 05/27/1998
  • Issued: 09/12/2000
  • Est. Priority Date: 05/27/1998
  • Status: Expired due to Fees
First Claim
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1. In a cellular communication system, apparatus for updating a neighbor list that contains data indicative of a predetermined number of communication channels that can be used to handoff an existing cellular communication connection for a mobile subscriber unit, comprising:

  • means, responsive to pilot signal strength data received from mobile subscriber units for at least one of a plurality of pilot channels, for automatically updating at least one metric associated with said at least one of a plurality of pilot channels, comprising;

    means, responsive to a mobile subscriber unit identifying a one of said plurality of pilot channels having a signal strength that exceeds a predetermined threshold, for generating data indicative of a number of instances that said one of said plurality of pilot channels has a signal strength that exceeds a predetermined threshold,means, responsive to a mobile subscriber unit identifying a one of said plurality of pilot channels having a signal strength that exceeds a predetermined threshold, for generating data indicative of power level of said number of instances that said one of said plurality of pilot channels has a signal strength that exceeds a predetermined threshold,means for generating a pilot channel metric for said one of said plurality of pilot channels using said data indicative of a number of instances and said data indicative of power level of said number of instances;

    means for rank ordering said plurality of pilot channels as a function of said metrics; and

    means for selecting at least one of said plurality of pilot channels for said neighbor list.

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