Methods for managing alignment and latency in interference cancellation
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United States of America Patent
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Dec 27, 2011
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N/A
app pub date -
Sep 19, 2007
filing date -
Apr 11, 2005
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Abstract
An interference cancelling receiver combines data from multiple paths after aligning to transmitter timing, and uses either an equalizer or a Rake receiver to compute symbol estimates. Interference estimates are generated from the symbol estimates, and multiple interference estimates are combined after re-aligning the interference estimates to receiver timing. At least two segments of symbol estimates are computed for each segment of interference cancelled data.Various techniques may be employed for controlling the latency and sequencing of these operations, and the subsystems within the canceller may use different processing clock speeds.
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