Method and system for performing time synchronization between nodes in wireless communication system
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United States of America Patent
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Apr 22, 2014
Grant Date -
Jun 24, 2010
app pub date -
Dec 18, 2009
filing date -
Dec 18, 2008
priority date (Note) -
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Abstract
A method is provided for synchronizing time between nodes in a wireless communication system. A reference node transmits a first packet to a correspondent node. Upon receiving the first packet, the correspondent node transmits a second packet with a reception time of the first packet recorded therein, to the reference node. Upon receiving the second packet, the reference node calculates a forward delay time using a transmission time and the reception time of the first packet. The correspondent node receives a third packet with the forward delay time from the reference node, and calculates a reverse delay time. The correspondent node calculates an offset value for the synchronization using the forward delay time and the reverse delay time.
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