Radio communication system using multi-antenna transmission technique, and multi-user scheduler therefor
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United States of America Patent
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Jan 1, 2013
Grant Date -
Nov 20, 2008
app pub date -
Aug 5, 2008
filing date -
Feb 8, 2006
priority date (Note) -
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status (Latency Note)
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Abstract
In a radio system performing scheduled transmission to a plurality of receiving stations from a transmitting station having a plurality of antennas, a transmitting station obtains reception quality information estimated from feedback information obtained from the plurality of receiving stations, determines whether a transmission system performs beamforming, which transmits data of an identical stream by weighting each of the plurality of antennas based on the obtained reception quality information, or performs MIMO multiplexing, which transmits data of different streams respectively from the plurality of antennas, and transmits information to identify the determined transmission system by adding to a scheduler management channel.
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