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Method and apparatus for performing fast power control in a mobile communication system

  • US 20060098759A1
  • Filed: 12/19/2005
  • Published: 05/11/2006
  • Est. Priority Date: 03/31/1995
  • Status: Active Grant
First Claim
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1. An apparatus for dynamically controlling transmission power from a central CDMA communications station, comprising:

  • receiver means for receiving a signal from a remote station; and

    transmitter means for adjusting a transmission power for the received signal to an acceptable level following a transmission power increase, wherein the acceptable level is determined by a method comprising the steps of;

    determining the cause of the transmission power increase, wherein the cause of the transmission power increase may be a random fade condition or a continuing fade condition;

    if the cause of the transmission power increase is a random fade condition, then reducing the transmission power at a first predetermined rate for a first predetermined time period in response to the transmission power increase;

    if the transmission power is still at an unacceptable level after the step of reducing the transmission power at a first predetermined rate for a first predetermined time period, then continuing to reduce the transmission power at a second predetermined rate for at least one other predetermined time period following the first predetermined time period, wherein the first predetermined time period and the at least one other predetermined time period may or may not be of equal duration; and

    if the cause of the transmission power increase is a continuing fade condition, then maintaining the transmission power at the level of the transmission power increase.

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