Receiver system and method for soft-decision decoding of punctured convolutional codes in a wireless communication system
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United States of America Patent
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Issued Date -
May 25, 2006
app pub date -
Nov 4, 2005
filing date -
Nov 19, 2004
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Abandoned
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Abstract
A receiver system of a wireless communication system comprising means for receiving and decoding of punctured convolutional codes and characterized by comprising a soft-decision processing unit adapted to receive a number of quantized signal soft-decision values spread across a range, the range having a maximum value, a minimum value, and a value corresponding to the center of that range; shift a number of signal soft-decision values by a shift step away from said center value; and quantize the signal soft-decision values with fewer bits than the number used to quantize the received signal soft-decision values according to a determined quantization input-output relationship.
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