System and method for a Krylov Method Symbol equalizer
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United States of America Patent
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Apr 28, 2015
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May 22, 2014
app pub date -
Nov 19, 2012
filing date -
Nov 19, 2012
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Abstract
Disclosed are various embodiments for a symbol level Krylov method equalizer implemented in a wireless communications device. An HSDPA or WCDMA signal is input to the wireless communications device. A conjugate gradient method is applied to symbol-level samples of the signal until a termination condition is met. The termination condition may comprise having zero residual error, residual error below a threshold, or a specified number of iterations. Additionally, a preconditioning matrix may be applied to the inputs of the conjugate gradient method.
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