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Method and system in a transceiver for controlling a multiple-input, multiple-output communications channel

  • US 6,859,503 B2
  • Filed: 04/01/2002
  • Issued: 02/22/2005
  • Est. Priority Date: 04/07/2001
  • Status: Active Grant
First Claim
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1. A feedback method in a multiple-stream, multiple antenna receiver, the method comprising the steps of:

  • measuring a composite channel between a multiple-antenna transmitter and a multiple-antenna receiver to produce a composite channel measurement;

    selecting a plurality of antenna array weight sets for use in the multiple-antenna transmitter in response to the composite channel measurement, wherein each antenna array weight set is associated with one of multiple data streams; and

    transmitting information describing the plurality of antenna array weight sets for use in the multiple-antenna transmitter; and

    the step of selecting a plurality of antenna array weight sets further includes selecting a plurality of antenna array weight sets having a cross correlation less than an inverse of a number of antenna elements in the antenna array of the multiple-antenna transmitter.

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