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Method and system for effecting handoff in a cellular communication system

  • US 5,422,933 A
  • Filed: 09/09/1993
  • Issued: 06/06/1995
  • Est. Priority Date: 09/09/1993
  • Status: Expired due to Term
First Claim
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1. A method of handing off an on-going communication of a mobile unit from a serving cell to a neighboring cell of a cellular communication system, comprising:

  • handing off the communication to a neighboring cell at times when the scanning receiver signal strength of the mobile unit at the neighboring cell is greater than a determined cell selection threshold for the neighboring cell; and

    determining the cell selection threshold using the current attenuation level of the mobile unit, a minimum permissible attenuation level permitted by the serving cell, and a minimum permissible attenuation level permitted by the neighboring cell.

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