Method to determine transmission quality
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United States of America Patent
Stats
-
May 25, 1993
Grant Date -
N/A
app pub date -
Jun 5, 1991
filing date -
Jun 5, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method determines the transmission quality of a signal transmitted by a base station and received by a mobile station in a cellular digital radio telephone network. The mobile station determines the phase error of detected bits a the input of the channel decoder, calculates the average and variance of the phase error. The average and variance are used to calculate the S/N ratio. The S/N ratio information is transmitted to a base station which converts the S/N ratio to a value defining the BER estimate of the received signal.
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