
US Patent No: RE42219
Number of patents in Portfolio can not be more than 2000
Multiple-input multiple-output (MIMO) spread spectrum system and method
Stats
-
Mar 15, 2011
Issued date -
Jun 26, 2008
filing date -
12/147,104
serial no -
In Force
status
Importance
Abstract
A system and method for transmitting a plurality of spread-spectrum signals over a communications channel having fading. The plurality of spread-spectrum signals are radiated by a plurality of antennas, with each antenna preferably spaced by one-quarter wavelength. A plurality of receiver antennas receive the plurality of spread-spectrum signals and a plurality of fading spread-spectrum signals. Each receiver antenna is coupled to a plurality of matched filters having a respective plurality of impulse responses matched to the chip-sequence signals of the plurality of spread-spectrum signals. A RAKE and space-diversity combiner combines, for each respective chip-sequence signal, a respective plurality of detected spread-spectrum signals and a respective multiplicity of detected-multipath-spread-spectrum signals, to generate a plurality of combined signals. The symbol amplitudes can be measured and erasure decoding employed to improve performance.
First Claim
Related Publications
International Classification(s)
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Cited Art
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Patent Citation Ranking
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