Method and apparatus for generating standard cancellation signalstandard cancellation signal
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United States of America Patent
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Oct 7, 2014
Grant Date -
Feb 14, 2013
app pub date -
Oct 16, 2012
filing date -
Apr 16, 2010
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Abstract
A method and an apparatus for generating a standard cancellation signal includes: setting weight values according to frequency points of a current cell and its neighboring cells; according to the frequency points of the current cell and neighboring cells and the weight values of the frequency points, performing Fourier transform to obtain a corresponding time-domain signal; and performing highest amplitude normalization on the time-domain signal and performing a cyclic shift to obtain a standard cancellation signal. The embodiments generate a standard cancellation signal according to frequency points of the current cell and its neighboring cells, so that the current cell and its neighboring cells share the peak clipping noise, and therefore helping improve the peak clipping performance of the current cell or reduce the EVM distortion.
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