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Method and apparatus for controlling transmission power while in soft handoff

  • US 6,512,925 B1
  • Filed: 12/03/1998
  • Issued: 01/28/2003
  • Est. Priority Date: 12/03/1998
  • Status: Expired due to Term
First Claim
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1. A mobile communication system, comprising:

  • a first base station for transmitting and receiving, respectively, a forward link signal and a reverse link signal from a mobile station, and for generating a first transmission power message for determining power level of transmission of said forward link signal;

    a second base station for transmitting a redundant version of said forward link signal to said mobile station and for receiving said reverse link signal from said mobile station, and for generating a second transmission power message for determining power level of transmission of said redundant version of said forward link signal;

    a centralized controller for receiving said first and second transmission power messages, and for sending an aligned power control command to said first base station and said second base station, wherein said first base station and said second base station are simultaneously in communication with said mobile station, wherein said aligned power control command is for producing correlating patterns of power control adjustments at said first and second base stations for transmissions of said forward link signal from said first base station and said redundant version of said forward link from said second base station to said mobile station.

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