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FREQUENCY TRANSFORMATION BASED TRANSMIT BEAMFORMING IN A COMMUNICATION SYSTEM

  • US 20100008268A1
  • Filed: 07/08/2008
  • Published: 01/14/2010
  • Est. Priority Date: 07/08/2008
  • Status: Active Grant
First Claim
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1. A method for transmit beamforming in a Frequency Division Duplex (FDD) communication system, the method comprising the steps of:

  • obtaining at least one beamforming weight of an antenna array on an uplink; and

    transforming the at least one uplink beamforming weight to at least one downlink beamforming weight by applying a phase correction that is a function of wavelength at the uplink and downlink frequencies.

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