Digital communication receiver and a method for the operation thereof
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United States of America Patent
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-
May 3, 2005
Grant Date -
N/A
app pub date -
Nov 22, 2000
filing date -
Nov 25, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A digital communication receiver communicates with a digital communication transmitter across a communication channel and has: a channel estimator, which provide a channel estimate of the communication channel based on a received signal; an equalizer, which estimates a sequence of transmitted symbols and provides a sequence of decided symbols based on the received signal and the channel estimate; and a channel tracker, which produces an updated channel estimate based on the received signal and the decided symbols, and which supplies the updated channel estimate to the equalizer. The digital communication receiver has a controller, which receives channel quality indicative data associated with an output from the equalizer, determines whether these data fail to meet a predetermined criterion, and, if so, supplies an enabling control signal to the channel tracker.
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