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Asymmetrical mimo wireless communications

  • US 20050185575A1
  • Filed: 11/01/2004
  • Published: 08/25/2005
  • Est. Priority Date: 02/19/2004
  • Status: Active Grant
First Claim
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1. A method for asymmetrical MIMO wireless communication, the method comprises:

  • determining a number of transmission antennas for the asymmetrical MIMO wireless communication;

    determining whether the asymmetric MIMO wireless communication will use spatial multiplexing or space-time block coding based on the number of transmission antennas;

    for spatial multiplexing, providing different constellation points for transmission on each of the number of transmission antennas; and

    for space-time block coding;

    during a first time interval;

    providing, for transmission on a first one of the number of transmission antennas, a first constellation point; and

    providing, for transmission on a second one of the number of transmission antennas, a second constellation point; and

    during a second time interval;

    providing, for transmission on the first one of the number of transmission antennas, an inverse complex conjugate of the second constellation point; and

    providing, for transmission on the second one of the number of transmission antennas, a complex conjugate of the second constellation point.

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