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COMMUNICATION STATION AND METHOD FOR EFFICIENTLY PROVIDING CHANNEL FEEDBACK FOR MIMO COMMUNICATIONS

  • US 20120045003A1
  • Filed: 08/23/2010
  • Published: 02/23/2012
  • Est. Priority Date: 08/23/2010
  • Status: Active Grant
First Claim
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1. A method performed by a receiving station for providing channel feedback for an orthogonal frequency division multiplexed (OFDM) channel, the method comprising:

  • performing recursive differential quantization of channel information across at least one of time and frequency to generate quantized differential channel feedback; and

    transmitting the quantized differential channel feedback to a transmitting station for use in precoding a multiple-input multiple-output (MIMO) transmission, wherein the quantized differential channel feedback comprises one of a quantized differential channel matrix and a quantized differential beamforming matrix.

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