Method for determining connection quality, and a receiver
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United States of America Patent
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Jun 8, 2004
Grant Date -
Jul 3, 2003
app pub date -
Feb 4, 1999
filing date -
Aug 9, 1996
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a method for determining connection quality, and a receiver in a radio system, the receiver comprising means for decoding a received signal by the Viterbi method by means of a trellis diagram comprising a group of state points, and means for calculating state transition values for the two possible transitions in each point of the diagram. To determine advantageously the quality of the connection between a transmitter and the receiver, the inventive receiver comprises means for calculating, in each column of the trellis diagram, the maximum values for both the transitions of the points in the column, for determining the absolute value of the difference of the calculated maximum values, and means for estimating connection quality by utilizing said absolute value.
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