Method and apparatus for multi-antenna transmission
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United States of America Patent
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Aug 9, 2005
Grant Date -
Sep 16, 2004
app pub date -
Mar 13, 2003
filing date -
Mar 13, 2003
priority date (Note) -
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Abstract
In a multiple-input, multiple-output (MIMO) communication system, a method and apparatus for multi-antenna transmission. In accordance with the preferred embodiment of the present invention a reduced number of transmit weight matrices are fed back to the transmitter. Each transmit weight matrix is then applied to a plurality of subcarriers. Because each transmit weight matrix is applied to more than one subcarrier, the amount of weight matrixs being fed back to the transmitter is greatly reduced.
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