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Reduced complexity beam-steered MIMO OFDM system

  • US 8,824,583 B2
  • Filed: 03/11/2013
  • Issued: 09/02/2014
  • Est. Priority Date: 04/24/2006
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • at least one processor configured to send channel information for at least one subcarrier that is a subset of multiple subcarriers used to send data, and to receive a data transmission sent on the multiple subcarriers from multiple transmit antennas to multiple receive antennas using transmit steering matrices derived for the multiple subcarriers based on the channel information for the at least one subcarrier,wherein the at least one processor is configured to obtain at least one channel response matrix for the at least one subcarrier, to decompose the at least one channel response matrix to obtain at least one transmit steering matrix, and to send a steered pilot on the at least one subcarrier using the at least one transmit steering matrix; and

    a memory coupled to the at least one processor.

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