Coarse symbol boundary detection in OFDM receivers
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United States of America Patent
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Aug 8, 2017
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app pub date -
May 16, 2014
filing date -
May 21, 2013
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Abstract
A method for determining a symbol boundary in a data packet belonging to a received OFDM signal is provided. The data packet includes a first training filed and a second training field, which begins with a guard interval. The method includes detecting the beginning of the data packet, and starting an automatic gain control process. The method further includes, after the automatic gain control process is locked, determining autocorrelation peaks and estimating the symbol boundary from times of the autocorrelation peaks.
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