METHODS, APPARATUS AND COMPUTER PROGRAMS FOR SIGNAL INTERFERENCE RATIO ESTIMATION
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United States of America Patent
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Issued Date -
Nov 14, 2013
app pub date -
May 2, 2013
filing date -
May 10, 2012
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Abandoned
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Abstract
Methods, apparatus and computer programs are provided for performing signal interference ratio estimation with respect particularly to non-constant modulus data. A method is provided that includes causing one or more data symbols to be demodulated resulting in one or more soft bits. An estimate is determined for a second order moment and a fourth order moment for the one or more soft bits. A signal to noise ratio is determined based on a signal component and a noise component of the estimated second order moment and the estimated fourth order moment for the one or more soft bits.
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