Transmit beamforming utilizing codebook selection in a...

Pulse or digital communications – Systems using alternating or pulsating current – Plural channels for transmission of a single pulse train

Reexamination Certificate

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Reexamination Certificate

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08081692

ABSTRACT:
A sub-matrix is selected from an estimated multiple input, multiple output (MIMO) channel matrix, wherein the estimated MIMO channel matrix is constructed based on a codebook. A singular value decomposition (SVD) is calculated based on the sub-matrix. A steering matrix is calculated based on the SVD and the codebook.

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U.S. Appl. No. 12/044,117, filed Mar. 7, 2008 entitled “Codebook Selection for Transmit Beamforming”.

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