Device for making decisions by estimating the viterbi algorithm in a mobile radio system
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United States of America Patent
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Jan 26, 1999
Grant Date -
N/A
app pub date -
May 15, 1995
filing date -
May 20, 1994
priority date (Note) -
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status (Latency Note)
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Abstract
In a mobile radio system including mobile terminals each terminal comprises, on the receiving side, a unit using the Viterbi algorithm for equalization or for decoding the received signals after demodulation. A decision device of this system calculates the mean and the standard deviation of the metrics of each branch of the Viterbi algorithm, determines a quality level of a transmission parameter corresponding to the results of this calculation and compares the estimated quality level and a required quality level of the parameter in order to produce a decision signal supplied to a decision unit which can modify one or more transmission characteristics.
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