The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2012
Filed:
Jun. 15, 2010
Deockgu Jee, Daejeon, KR;
Jin Up Kim, Daejeon, KR;
Joonhyuk Kang, Daejeon, KR;
Keongkook Lee, Daejeon, KR;
Jungho Myung, Daejeon, KR;
Deockgu Jee, Daejeon, KR;
Jin Up Kim, Daejeon, KR;
Joonhyuk Kang, Daejeon, KR;
Keongkook Lee, Daejeon, KR;
Jungho Myung, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
A Non-Continuous Orthogonal Frequency Division Multiplexing (NC-OFDM) system may be provided. The NC-OFDM system, including: a sensing unit to determine whether to use at least one frequency band; a band control unit to disable a subcarrier with respect to a frequency band in use as a result of the determination; a pruning determination unit to determine whether a number of points where the subcarrier is disabled is greater than a threshold value; a pruning retrieval unit to retrieve a pruning path generated by the disabling of the subcarrier, when the number of points is greater than the threshold value; and a Fourier transform unit to perform a Fast Fourier transform (FFT) or Inverse FFT (IFFT) by applying the pruning path to the subcarrier.