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:
Oct. 05, 2010
Filed:
Apr. 18, 2007
Jiun-yo Lai, Taichung, TW;
Jen-yuan Hsu, Kimmen County, TW;
Yung-yih Jian, Taoyuan County, TW;
Pang-an Ting, Taichung County, TW;
Jiun-Yo Lai, Taichung, TW;
Jen-Yuan Hsu, Kimmen County, TW;
Yung-Yih Jian, Taoyuan County, TW;
Pang-An Ting, Taichung County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
Fractional carrier frequency offset estimators and related methods are disclosed. The invention may be particularly applied in WiMAX systems. The disclosed method of estimating fractional carrier frequency offset between a transmitter and a receiver includes calculating a first delay correlation based on a first and a second preamble repetitions included in a received signal, processing the phase of the first delay correlation to compensate for a phase rotation of the first delay correlation, and estimating the fractional carrier frequency offset by multiplying a processed phase value, generated after the step of processing the phase of the first delay correlation, by a predetermined value.