Rate control technique for layered architectures with multiple transmit and receive antennas
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United States of America Patent
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Oct 3, 2006
Grant Date -
Apr 24, 2003
app pub date -
Oct 18, 2001
filing date -
Oct 18, 2001
priority date (Note) -
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Abstract
In a wireless communication system using multiple antennas at the transmitter and multiple antennas at the receiver, with a sufficiently large number of antennas and/or diversity order, the same performance that is obtainable when employing instantaneous rate indication feedback can be attained without any such short-term feedback by adjusting the data rate of each transmit antenna according to a prescribed function. The prescribed function does not depend on the short-term state of the channel, but instead only depends on its long-term statistics, which may be fed back from the receiver to the transmitter at relatively lengthy intervals.
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