OFDM signal communication system, OFDM signal transmitting device and OFDM signal receiving device
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United States of America Patent
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Jul 10, 2007
Grant Date -
Dec 19, 2002
app pub date -
Apr 5, 2002
filing date -
Apr 9, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An OFDM signal communication system used in broadband mobile communication, achieves stable operation under severe frequency selective fading environments, giving high quality. The OFDM signal communication system which transmits OFDM signals over the same radio frequency from N transmitting antennas, has an inverse matrix computer for computing an N.times.N inverse matrix constituted by propagation coefficients for respective propagation paths between each of N transmitting antennas and each of N receiving antennas, and a subcarrier demodulator which separates the signals of the respective propagation paths, based on the obtained inverse matrix.
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