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Transmission/reception apparatus and transmit power control method

  • US 6,507,574 B1
  • Filed: 08/25/2000
  • Issued: 01/14/2003
  • Est. Priority Date: 09/17/1998
  • Status: Expired due to Term
First Claim
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1. A communication terminal apparatus that receives transmit signals which are spread with a plurality of different spreading code sequence and which are transmitted in parallel from different antennas respectively, said communication terminal apparatus comprising:

  • a plurality of receiver circuits, each having a despreading section, that receive the transmit signals and despread the transmit signals with the different spreading code sequences respectively to obtain a plurality of received signals;

    data combination circuitry that combines the received signals obtained in the plurality of receiver circuits to obtain combined received data;

    measurement circuitry that measures received power of said plurality of received signals in the receiver circuits;

    combination circuitry that combines measured received power of the plurality of received signals of said measurement circuitry to obtain combined received power; and

    transmit power control circuitry that performs open-loop transmit power control using the combined received power.

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