Multiplex communications – Communication over free space – Having a plurality of contiguous regions served by...
Reexamination Certificate
2000-11-22
2010-11-30
Eng, George (Department: 2617)
Multiplex communications
Communication over free space
Having a plurality of contiguous regions served by...
C714S752000
Reexamination Certificate
active
07843888
ABSTRACT:
Space-time diversity using a plurality of transmit antennas is provided with a turbo coding arrangement comprising two recursive systematic convolutional coders, to one of which input bits are supplied directly and to the other of which the information bits are supplied after interleaving of bit groups for respective symbol intervals. Symbols produced by the coders and comprising systematic and parity information are supplied to paths to the antennas alternately in successive symbol intervals to provide the space-time diversity. Arrangements are described for 2 and 4 antennas and for various convolutional codes, and an iterative decoder is also described.
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Bakouline Mikhail G.
Chloma Alexandre M.
Jia Ming
Kreindeline Vitali B.
Shinakov Yuri S.
Eng George
Kim Wesley L
Nortel Networks Limited
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