Generalized codebook design method for limited feedback systems
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United States of America Patent
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Jan 7, 2014
Grant Date -
Apr 3, 2008
app pub date -
Sep 28, 2006
filing date -
Sep 28, 2006
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Abstract
In a closed-loop wireless communication system, a codebook-based feedback mechanism is provided where each codeword indicates a particular profile to be used to provide a target performance measure (e.g., bit error rate or spectral efficiency) for the transmission channel. This may be accomplished by using a multi-stage quantization process to construct the codewords as a plurality of transmission parameters specifying a MIMO transmission scheme, precoding vector or matrix, power allocation in space/time/frequency, modulation and channel code.
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