Method of dynamic transmit scheduling using channel quality feedback
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Abstract
A method and system for dynamic rate switching via medium access channel layer signaling is disclosed, wherein data rates for high data rate channels are automatically shifted up or down based on a predetermined metric. In a preferred embodiment, data rates are automatically shifted up or down based on transmit channel gain required to maintain a required signal to noise ratio.
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Citations
9 Claims
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1-7. -7. (canceled)
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8. A method for scheduling a plurality of mobile units for data transmission, the method comprising the steps of:
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determining a plurality of mobile units that require data transmission;
determining a metric for each of the plurality of mobile units that require data transmission;
selecting, based on the metric, a mobile unit from the plurality of mobile units that require data transmission;
determining a transmission rate based on channel conditions and a coherence time left in a fade cycle; and
transmitting a packet at the transmission rate to the mobile unit selected.
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9. The method of claim 12 wherein determining the transmission rate comprises determining a reduced transmission rate when the coherence time left in the fade cycle indicates that a fade is probable.
Specification