Signal decoding methods and apparatus
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United States of America Patent
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Sep 9, 2008
Grant Date -
May 5, 2005
app pub date -
Sep 14, 2004
filing date -
Oct 3, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of decoding a transmitted string of symbols received as a received signal. The method includes searching for a candidate string of symbols, by searching for candidate symbols within a region of a multi-dimensional lattice, and decoding the transmitted string of symbols by selecting a candidate string of symbols. The candidate string of symbols includes a string of candidate symbols. The searching for the candidate symbols includes selecting a candidate value for one of the transmitted symbols, and testing whether a part of the multi-dimensional lattice defined by the selected candidate value is within a bounding distance from the received signal. The searching for the candidate symbols is stopped after a limiting number of performances of the testing. The decoding includes providing a linear estimate of the transmitted string of symbols when the searching for the candidate string of symbols fails to locate the candidate string of symbols.
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