METHOD AND APPARATUS FOR UPDATING FEXT COEFFICIENTS FOR G.FAST VECTORING WITH DISCONTINUOUS OPERATION
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United States of America Patent
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Nov 26, 2015
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May 20, 2015
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May 20, 2014
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Abstract
In general, the present invention is related to methods and apparatuses for performing an efficient update of Far-End Cross Talk (FEXT) coefficients for use with Discontinuous Operation (DO) in G.fast systems. In embodiments, to maintain separate FEXT coefficient matrices for both the Regular Operation (RO) group and the smaller DO group, the updates to the DO coefficient matrix are performed independently from the updates to the RO coefficient matrix. In these and other embodiments, the updates are performed using LMS updates and known data symbols, and with the same frequency as the LMS updates to the RO coefficient matrix.
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