Multiplex communications – Communication over free space – Combining or distributing information via code word channels...
Reexamination Certificate
2011-05-24
2011-05-24
Corsaro, Nick (Department: 2617)
Multiplex communications
Communication over free space
Combining or distributing information via code word channels...
C370S335000, C375S130000
Reexamination Certificate
active
07948957
ABSTRACT:
A receiver connected to a plurality of reception antennas includes a propagation path correlation estimation circuit. The propagation path correlation estimation circuit calculates a correlation value of each propagation path between each of the transmission antennas and each of the reception antennas and transmits the calculation result as propagation path correlation information (SCOR). A transmitter connected to a plurality of transmission antennas includes a spread code assigning circuit. According to the propagation path correlation information, the spread code assigning circuit assigns only spread codes orthogonal to each other for the transmission antenna corresponding to a correlation value exceeding a threshold value and, for a transmission antenna having no propagation path of a correlation value exceeding the threshold value, assigns a spread code without considering orthogonality to a spread code in the other transmission antenna.
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Chambers Tangela T.
Corsaro Nick
NEC Corporation
Scully , Scott, Murphy & Presser, P.C.
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