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CDMA mobile communication system and transmission power control method therefor

  • US 20010033558A1
  • Filed: 04/24/2001
  • Published: 10/25/2001
  • Est. Priority Date: 04/25/2000
  • Status: Active Grant
First Claim
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1. A CDMA (Code Division Multiple Access) mobile communication system comprising a base station and a mobile station connected to said base station by radio through reverse-link and forward-link control channels, said base station comprising:

  • monitor means for monitoring a forward-link transmission power value radiated to said mobile station;

    calculation means for, when the forward-link transmission power value becomes smaller than a predetermined steady output value, calculating system parameter information of said mobile station, which corresponds to the reduced forward-link transmission power value; and

    notification means for notifying said mobile station of the system parameter information of said mobile station, which is output from said calculated means, and said mobile station comprising;

    transmission power control means for, when said mobile station in a standby state starts originating/terminating operation to/from said base station, controlling a transmission power value of the reverse-link control channel from said mobile station on the basis of a value obtained from a reception field strength value of the forward-link control channel from said base station and the system parameter information of said mobile station, which is transmitted from said base station.

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