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Method for transmit power control in a communication system

  • US 5,805,994 A
  • Filed: 04/03/1996
  • Issued: 09/08/1998
  • Est. Priority Date: 04/03/1996
  • Status: Expired due to Term
First Claim
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1. A method for setting a transmit power level by a secondary station in a communication system, the secondary station coupled to a primary station by way of a shared channel, the transmit power level falling between a predetermined minimum transmit power level and a predetermined maximum transmit power level, inclusive, the method comprising the steps of:

  • receiving a first invitation for several of the secondary stations including the secondary station to contend for access to the shared channel;

    transmitting a first response at a first transmit power level;

    receiving a second invitation for the secondary station to contend for access to the shared channel;

    determining whether the second invitation indicates that a first invalid message was received on the shared channel;

    transmitting second response at the first transmit power level if the second invitation indicates that the first invalid message was received on the shared channel;

    receiving a third invitation for the secondary station to contend for access to the shared channel;

    determining whether the third invitation indicates that a second invalid message was received on the shared channel; and

    if the third invitation indicates that the second invalid message was received on the shared channel, transmitting a third response at a second transmit power level different from the first transmit power level.

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