Method and system for performing initial ranging in cognitive radio network
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United States of America Patent
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Oct 11, 2016
Grant Date -
Jul 2, 2015
app pub date -
Aug 4, 2014
filing date -
Dec 26, 2013
priority date (Note) -
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Abstract
Disclosed herein are a method and a system for performing initial ranging in a cognitive radio network The method for performing initial ranging in a cognitive radio network includes: detecting signals received in one or more ranging sections; estimating a tint time offset based on a correlation between subcarrier indices of the signals detected in the one or more ranging sections; estimating a second time offset based on correlations for the signals detected in the one or more ranging sections and a plurality of codes that are predetermined and detecting an initial ranging code among the plurality of codes; and estimating a time offset of a CPE performing initial ranging with the detected initial ranging code using the first time offset and the second time offset that are estimated.
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