Multiplex communications – Communication over free space – Combining or distributing information via frequency channels
Reexamination Certificate
2006-08-22
2010-10-26
Ferris, Derrick W (Department: 2463)
Multiplex communications
Communication over free space
Combining or distributing information via frequency channels
C370S210000
Reexamination Certificate
active
07822007
ABSTRACT:
The present invention relates to a transmitter in a frequency division multiple access communication system. The transmitter generates a plurality of pilot symbols, and groups the plurality of pilot symbols into a plurality of groups according to a location of a subcarrier. In addition, the transmitter inverse fast Fourier transforms the pilot symbol in each group, and sequentially outputs a first pilot symbol sequence corresponding to each group. The transmitter generates a plurality of pilot blocks respectively corresponding to the plurality of groups, and converts the first pilot symbol sequence of each group into a second pilot symbol sequence of a corresponding pilot block among the plurality of pilot blocks.
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Ahn Jae-Young
Jeong Byung-Jang
Lee Hyo-Jin
Anwar Mohammad
Electronics and Telecommunications Research Institute
Ferris Derrick W
Kile Park Goekjian Reed & McManus PLLC
Park Jae Y.
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