Wireless transmission apparatus and wireless transmission...

Multiplex communications – Communication over free space – Combining or distributing information via frequency channels

Reexamination Certificate

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Details

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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PCT International Search Report dated Mar. 29, 2005.
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J. Rosdahl, et al.: “Draft PAR for High Throughout Study Group,” doc.: IEEE802.11-02/798r7, Mar. 2003, pp. 1-9.

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