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Radio base station and method of controlling radio communications

  • US 20030081574A1
  • Filed: 10/24/2002
  • Published: 05/01/2003
  • Est. Priority Date: 10/25/2001
  • Status: Active Grant
First Claim
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1. A radio base station comprising:

  • a channel estimator configured to perform channel estimation of an uplink time slot;

    a transmit diversity controller configured to control transmit diversity used for each downlink time slot based on said channel estimation and the number of users sharing the downlink time slot when using a code division multiple system; and

    a data transmitter configured to transmit data in said downlink time slot using said controlled transmit diversity.

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