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Spread spectrum adaptive power control using a base station

  • US 6,721,350 B2
  • Filed: 02/07/2002
  • Issued: 04/13/2004
  • Est. Priority Date: 01/04/1995
  • Status: Expired due to Fees
First Claim
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1. A base station comprising:

  • an automatic-gain-control (AGC) circuit, responsive to a received signal, for generating an AGC-output signal, with the received signal including a plurality of spread-spectrum user signals and an interfering signal;

    for each of the plurality of spread spectrum user signals;

    a correlator coupled to the AGC circuit for despreading the AGC-output signal using a code of that spread spectrum user signal;

    a power-measurement circuit coupled to the correlator, for processing the despread AGC-output signal as a received-power level;

    a comparator coupled to the power-measurement circuit for generating a comparison signal using a threshold and the received-power level; and

    a power-command circuit coupled to the comparator and responsive to the comparison signal for generating a power-command signal; and

    an antenna; and

    a transmitter coupled to the antenna and the power-command circuit for transmitting the power-command signals; and

    wherein each of the spread spectrum user signals having an associated setpoint of a signal to noise ratio based on a service option, and at least one of the spread spectrum user signals having a different setpoint from another of the spread spectrum user signals.

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