Direct generation of discrete Fourier transforms of time-shifted Zadoff-Chu sequences
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United States of America Patent
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May 19, 2015
Grant Date -
Sep 19, 2013
app pub date -
May 2, 2013
filing date -
Nov 30, 2009
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Abstract
A method includes accepting input values u and v, respectively identifying a uth root Zadoff-Chu sequence whose length is a prime number, and a vth cyclic shift for the sequence. Elements of a Discrete Fourier Transform (DFT) of the vth cyclic shift of the uth root Zadoff-Chu sequence are computed using processing circuitry, by evaluating a single respective exponent depending on u and v in computing each of the elements.
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