Multiplex communications – Communication over free space – Combining or distributing information via code word channels...
Reexamination Certificate
2011-08-16
2011-08-16
Hoang, Thai D (Department: 2463)
Multiplex communications
Communication over free space
Combining or distributing information via code word channels...
C375S260000
Reexamination Certificate
active
08000309
ABSTRACT:
A method for transmitting a signal according to the present invention comprises spreading a control channel data through a PN code and generating a diffused control channel data; time division multiplexing the diffused control channel data and a service channel data and generating a multiplexed signal; and inverse Fourier transforming the multiplexed signal and generating an inverse Fourier transformed signal.Accordingly, in multi-hop communication, frequency efficiency is improved by not using different RF frequencies between a control channel and service channel, and applying a control channel and service channel through the TDM (Time Division Multiplexing) method, and the channel efficiency is improved by WAVE channel switching.
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Choi Hyun-Kyun
Kim Sang-In
Lee Keon-Kook
Oh Hyun-Seo
Electronics and Telecommunications Research Institute
Hoang Thai D
Kile Park Goekjian Reed & McManus PLLC
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