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MIMO transmission with rank adaptation for multi-gigabit 60 GHz wireless

  • US 8,571,127 B2
  • Filed: 03/11/2011
  • Issued: 10/29/2013
  • Est. Priority Date: 03/11/2010
  • Status: Active Grant
First Claim
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1. A wireless system comprising:

  • a transmitter with a baseband processor responsive to groups of transmitter antenna arrays for communicating over directional beams; and

    a receiver with a baseband processor responsive to groups of receiver antenna arrays for communicating with said transmitter over said directional beams, said receiver including both a rank adaptation providing a transmit mode feedback to said transmitter and a blind beamforming providing a transmit beamformer index feedback to said transmitter and receiver groups of antenna arrays;

    wherein said blind beamforming comprises generating enhanced perturbation vectors, an iteration to generate new beamformers responsive to said perturbation vectors and a current beam beamformer, and determining a received power for all combination of transmitter and receiver antenna beamformers responsive to said new beamformers.

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