Transmitting and receiving method, and radio apparatus utilizing the same
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United States of America Patent
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May 11, 2010
Grant Date -
May 18, 2006
app pub date -
Nov 14, 2005
filing date -
Nov 12, 2004
priority date (Note) -
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Abstract
A processing unit transmits, from at least one of a plurality of antennas, data corresponding respectively to the plurality of antennas. A control unit generates request signals with which to let a second radio apparatus supply information on rates at the second radio apparatus. When transmitting the request signal, the processing unit also transmits, from a plurality of antennas which includes antennas other than the antennas that transmit the data, known signals corresponding respectively to the plurality of antennas.
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