Apparatus and method for partial adaptive transmission in multiple-input multiple-output system
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United States of America Patent
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Jun 18, 2013
Grant Date -
Aug 13, 2009
app pub date -
Apr 25, 2008
filing date -
Apr 26, 2007
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Abstract
An apparatus and method for partial adaptive transmission in a Multiple-Input Multiple-Output (MIMO) system are provided. The method includes estimating a correlation matrix between Transmit (Tx) antennas and an average Signal to Noise Ratio (SNR) and generating a long-term precoding matrix composed of a predetermined number of dominant eigen dimensions of the correlation matrix by using the estimated correlation matrix and average SNR. The apparatus and method provide a new adaptive MIMO transmission method capable of reducing the feedback information overhead and maximizing performance.
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