×

Transmit power control in a radio communication system

  • US 6,259,927 B1
  • Filed: 06/06/1997
  • Issued: 07/10/2001
  • Est. Priority Date: 06/06/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of controlling power levels of signals transmitted by base stations in a communication system having base stations and remote stations, comprising the steps of:

  • determining in a remote station whether the remote station is simultaneously receiving a first signal transmitted by a first base station and at least one second signal transmitted by at least one second base station that include substantially identical message information;

    transmitting to a controller from the first base station a first report of a power level of the first signal;

    transmitting to the controller from the at least one second base station at least one second report of a power level of the at least one second signal;

    comparing in the controller the first report and the at least one second report;

    transmitting from the controller to the first base station a first command for controlling the power level of the first signal; and

    transmitting from the controller to the at least one second base station at least one second command for controlling the power level of the at least one second signal;

    or when the first and at least one second signal do not include substantially identical message information or when only one of the first signal and at least one second signal is received at the remote station;

    determining a signal to interference ratio of the received signal;

    transmitting from the remote station a report of the determined signal to interference ratio; and

    substantially simultaneously controlling the power level of the signal based on the report as received at the first base station.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×