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Adaptive channel allocation in a mobile communications system

  • US 5,574,974 A
  • Filed: 03/20/1995
  • Issued: 11/12/1996
  • Est. Priority Date: 03/20/1995
  • Status: Expired due to Term
First Claim
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1. In a cellular communication system comprising first and second cells, wherein the first cell comprises a first base station and a first mobile station, and the second cell comprises a second base station and a second mobile station, and wherein further the second cell uses any one of a plurality of channels on a second connection between the second base station and a second mobile station, a method for allocating one of the plurality of channels for use on a first connection between the first base station and the first mobile station, the method comprising the steps of:

  • in the second cell, adjusting total power of the used one of the channels by an amount .increment.P2, wherein;

    .increment.P2 is equal to a sum of a change in transmission power of the second mobile station plus a change in transmission power of the second base station on the used one of the channels;

    .increment.P2 has a magnitude that is substantially equal to a magnitude of a change in path gain between the second mobile station and the second base station; and

    .increment.P2 has a sign that is opposite a sign of the change in path gain between the second mobile station and the second base station;

    in the first cell, using determinations of uplink interference values to select an acceptable free channel from those ones of the plurality of channels that are unused in the first cell; and

    in the first cell, allocating the acceptable free channel to the first connection.

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