Combined closed loop/open loop power control in a time division duplex communication system

Combined closed loop/open loop power control in a time division duplex communication system

  • CN 1,878,017 A
  • Filed: 03/22/2000
  • Published: 12/13/2006
  • Est. Priority Date: 03/22/1999
  • Status: Active Grant
First Claim
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1. base station that is used for the spread spectrum time division duplex communication system, its use has the frame of time slot communicates by letter, and described base station comprises:

  • In first time slot, receive the device of first communication and the second communication that emission is amplified in second time slot;

    Channel estimating apparatus, it has input, receives described first communication to produce channel information;

    Data estimation device, its respond described first communication and described channel information with the generation interpret data;

    Power-measuring device, it responds described channel information to determine the received power level of described first communication;

    The path loss estimation unit, the measured power level of its response is estimated with the path loss that produces described first communication;

    Apparatus for measuring quality is used for producing mass measurement at interval according to described first time slot and second time slots at least in part;

    The transmitting power calculation element, it responds described path loss and estimates and described mass measurement, according to estimating to produce power control signal through the described path loss estimation of factor I weighting and through the long-term path loss of factor weighting, wherein said first and second factor is based in part on described mass measurement with at least in part;

    AndAmplifier, it receives described power control signal and the second communication that will launch and amplify the described second communication of the described power control signal of response in described second time slot, with the second communication that produces described amplification for described receiving system emission.

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