Method and apparatus for channel sounding in an orthogonal frequency division multiplexing communication system
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United States of America Patent
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Dec 17, 2013
Grant Date -
Oct 6, 2011
app pub date -
Aug 2, 2010
filing date -
Apr 6, 2010
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Abstract
An Orthogonal Frequency Division Multiplexing communication system is provided that triggers a transmission of an uplink sounding signal by use of a Downlink Control Information (DCI) message. In various embodiments of the invention, the DCI message may be used to individually trigger an uplink sounding signal by a single user equipment or may be used to trigger an uplink sounding signal by a group of users equipment.
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