COEFFICIENT DETERMINATION FOR DIGITAL SUBSCRIBER LINE VECTORING
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United States of America Patent
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Issued Date -
Nov 24, 2016
app pub date -
May 19, 2016
filing date -
May 22, 2015
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Abstract
Methods, systems, and devices are described for wired communication. In one aspect, a method relates to an approach to determine a coefficient based at least in part on a weighted average of multiple estimates of a coefficient from known (e.g., stored) coefficients. The weighted average approach may improve coefficient determination. For example, a weighted average interpolation/extrapolation approach is used to determine vectoring coefficients from known vectoring coefficients in a vectored DSL system. Such an approach may provide a significant improvement in the SNR performance of the system, for example, as compared to coefficients obtained by linear interpolation. The weighted average may be of a linear interpolation, a forward extrapolation and a backward extrapolation of the particular coefficient being determined. As such, linear interpolation, forward extrapolation and backward extrapolation may be leveraged to improve accuracy of the determined coefficient.
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