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Array antenna system of wireless base station

  • US 6,064,338 A
  • Filed: 08/27/1998
  • Issued: 05/16/2000
  • Est. Priority Date: 03/19/1998
  • Status: Expired due to Term
First Claim
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1. An array antenna system of a wireless base station in CDMA mobile communications for combining signals, which have been received by a plurality of antenna elements of an array antenna, upon subjecting the signals to prescribed amplitude weights and phase rotation, and despreading the combined signal, comprising:

  • means for applying a correlation operation to an output signal from each antenna element to thereby calculate correlation signals corresponding to each antenna element that is correlated with a signal transmitted from a mobile station of interest;

    means for calculating adaptive weights corresponding to each antenna element from the correlation signals;

    means for multiplying, by the adaptive weights calculated for the respective antenna elements, output signals from the corresponding antenna elements and combining the resulting products to output a combined signal; and

    demodulation means for despreading the combined signal.

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