Methods and system for transmission mode selection in a multi channel communication system
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United States of America Patent
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Jun 11, 2013
Grant Date -
Nov 25, 2010
app pub date -
May 12, 2010
filing date -
Sep 16, 2008
priority date (Note) -
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Abstract
Techniques to select a suitable transmission mode for a data transmission in a multi channel communication system with multiple spatial channels having varying SNRs are presented in this disclosure. For certain embodiments, a closed-loop technique may be applied, in which back-off factors used to calculate an effective SNR value fed back to a transmitter are adjusted. An open-loop rate control scheme is also presented in which a transmitter may select a data rate and number of streams based on whether transmitted packets are received in error at a receiver.
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