Phase rotation method for reducing PAPR
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United States of America Patent
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Feb 12, 2013
Grant Date -
Nov 17, 2011
app pub date -
Nov 8, 2010
filing date -
May 15, 2010
priority date (Note) -
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Abstract
A method of reducing a signal peak to average power ratio (PAPR) for a transmission channel in a wireless communication system is disclosed. The transmission channel is divided into a plurality of channel segments, and the method includes calculating PAPRs corresponding to the plurality of channel segments by a plurality of phase rotation vectors; selecting a plurality of specified phase rotation vectors from the plurality of phase rotation vectors according to the calculated PAPRs; and using one of the plurality of specified phase rotation vectors to rotate a phase of a signal to be transmitted.
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