Wireless reception apparatus, wireless transmission apparatus, wireless communication system, wireless reception method, wireless transmission method, and wireless communication method
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United States of America Patent
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Mar 27, 2012
Grant Date -
Mar 5, 2009
app pub date -
Apr 14, 2005
filing date -
Apr 14, 2005
priority date (Note) -
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Abstract
The present invention relates to an apparatus and a method capable of achieving closed loop MIMO communications, using reduced feedback, without a loss in system performance. In one embodiment of the present invention, a phase-rotated right handed singular vector matrix is derived from an estimation result of a MIMO channel (steps 231 and 232). Then, a coefficient are fed back (step 235). The coefficient is associated with an element in the phase-rotated right-handed singular vector matrix.
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