Pulse or digital communications – Synchronizers – Frequency or phase control using synchronizing signal
Reexamination Certificate
2007-10-30
2007-10-30
Kim, Kevin (Department: 2611)
Pulse or digital communications
Synchronizers
Frequency or phase control using synchronizing signal
C375S260000, C375S354000, C370S208000, C370S515000
Reexamination Certificate
active
10726096
ABSTRACT:
A method for generating a preamble sequence in an orthogonal frequency division multiplexing (OFDM) communication system having A subcarriers in a frequency domain. The method comprises generating a length -M×N preamble sequence, where M×N is less than A, by using a length-N Golay complementary sequence and a length-M Golay complementary sequence; and assigning elements constituting the preamble sequence to M×N subcarriers among the A subcarriers on a one-to-one mapping basis, assigning null data to the remaining subcarriers excluding the M×N subcarriers from the A subcarriers, and then IFFT-transforming the assigned result into time-domain data.
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Chae Chan-Byoung
Choi Ho-Kyu
Joo Pan-Yuh
Ro Jung-Min
Suh Chang-Ho
Kim Kevin
The Farrell Law Firm P.C.
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