High rate reed-solomon concatenated trellis coded 16 star QAM system for transmission of data over cellular mobile radio
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United States of America Patent
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Nov 17, 1998
Issued Date -
N/A
app pub date -
May 6, 1997
filing date -
Nov 23, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A cellular communication system provides for trellis encoding/decoding of a 16 Star QAM signal. The system includes a transmitter circuit and a receiver circuit. The transmitter circuit has a Reed-Solomon encoder, an outer interleaver circuit for spreading burst errors, a cyclic trellis encoder, an inner interleaver circuit for reducing channel memory, a 16 Star QAM mapper and a radio frequency transmitter. The receiver circuit has a radio frequency receiver, equalization and filtering circuitry and timing and synchronization recovery circuitry. The receiver also has an inner deinterleaver, a trellis decoder, an outer deinterleaver, and a Reed-Solomon decoder.
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