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:
Jun. 30, 2020
Filed:
Jan. 08, 2018
Electronics and Telecommunications Research Institute, Daejeon, KR;
Jae Hwui Bae, Daejeon, KR;
Jin Hyuk Song, Daejeon, KR;
Je Won Lee, Daejeon, KR;
Joon Young Jung, Daejeon, KR;
Dong Joon Choi, Daejeon, KR;
Nam Ho Hur, Sejong-si, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
Disclosed are a roll-off period detection method, a symbol starting point detection method, a fractional frequency offset estimating method, and an OFDM downstream system using the same. A method of detecting a roll-off period in an OFDM downstream system according to an embodiment of the present disclosure may include: generating a temporary roll-off period by applying a windowing function to a signal having a preset length; and detecting a roll-off period based on any one of a cross correlation and a sum of differences between a detection target signal included in a range of two OFDM symbol signals based on a detection starting point, and the temporary roll-off period.