Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 18, 2007
Patent Application Number
09870926
Date Filed
May 30, 2001
Patent Primary Examiner
Patent abstract
A method for estimating an SNR-related parameter, such as ES/N0, from one or more symbols. The number of symbols within a predetermined number of symbols that fall within one or more collection areas is counted. The count is then associated with a value of the SNR-related parameter. This association may be performed through one or more lookup tables. In one application, a scaling factor is derived from the count. The scaling factor may be used to scale symbols before they are quantized and inputted into a trellis decoder such as a log-MAP decoder.
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