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Radio communication apparatus and method

  • US 6,778,520 B2
  • Filed: 03/14/2001
  • Issued: 08/17/2004
  • Est. Priority Date: 03/22/1996
  • Status: Expired due to Fees
First Claim
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1. A CDMA/TDD radio communication apparatus comprising:

  • a power detector that detects received power of data from base stations;

    a demodulator that, when received power of data transmitted from a first base station other than a main base station in current communication is greater than a predetermined level and is less than received power of data transmitted from said main base station, selects said first base station as a sub base station, and decodes data from said sub base station with data from said main base station; and

    a controller that, when received power of data from said sub base station is less than received power of data from said main base station, performs transmission power control and time alignment for said main base station, said time alignment being timing control for transmission data, wherein said apparatus further comprises a transmitter that transmits instruction information to the main base station, to instruct said sub base station to transmit same data as data being communicated in the current communication with the main base station.

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