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Antenna array calibration for multi-input multi-output wireless communication systems

  • US 8,280,430 B2
  • Filed: 04/17/2006
  • Issued: 10/02/2012
  • Est. Priority Date: 11/02/2005
  • Status: Expired due to Fees
First Claim
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1. A method of calibrating an antenna array in a wireless network, comprising:

  • receiving first channel estimate information each corresponding to transmissions to at least two antennas of at least two access terminals;

    determining second channel estimate information each corresponding to transmissions from the at least two antennas of the at least two access terminals; and

    determining a calibration ratio based upon each of the first channel estimate information and each of the second channel estimate information,wherein determining the calibration ratio comprises solving the equation;

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