Multiplex communications – Communication over free space – Combining or distributing information via frequency channels
Reexamination Certificate
2004-12-20
2009-06-09
Ly, Nghi H (Department: 2617)
Multiplex communications
Communication over free space
Combining or distributing information via frequency channels
C370S328000, C370S338000, C455S007000, C455S403000, C455S424000
Reexamination Certificate
active
07545791
ABSTRACT:
A wireless transmission apparatus that improves throughput in a wireless communication network system. In this apparatus, MTunits of transmission/reception sections (122-1to122-MT) respectively correspond to MTunits of antennas (121-1to121-MT) and transmit a preamble signal and a data signal via corresponding antennas (121-1to121-MT). MTunits of transmission/reception sections (122-1to122-MT) use subcarriers allocated per antennas (121-1to121-MT) out of subcarriers (141, 142, 143and144) in preamble signal transmission. Furthermore, MTunits of transmission/reception section (122-1to122-MT) use a subcarrier (140) having a frequency different from subcarriers (141, 142, 143and144) in data signal transmission.
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Imamura Daichi
Malik Rahul
Naka Katsuyoshi
Tan Pek Yew
Dickinson Wright PLLC
Ly Nghi H
Panaosnic Corporation
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