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:
Apr. 23, 2013
Filed:
Mar. 15, 2006
Applicants:
Bojan Vrcelj, San Diego, CA (US);
Raghuraman Krishnamoorthi, San Diego, CA (US);
Seong Taek Chung, Redwood City, CA (US);
Fuyun Ling, San Diego, CA (US);
Inventors:
Bojan Vrcelj, San Diego, CA (US);
Raghuraman Krishnamoorthi, San Diego, CA (US);
Seong Taek Chung, Redwood City, CA (US);
Fuyun Ling, San Diego, CA (US);
Assignee:
Qualcomm Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A frequency tracking method and apparatus is provided. A receiver receives OFDM symbols and determines associated frequency offset. A frequency error estimator selects a cross correlation window for determining frequency offset based on timing offset. A symbol timing estimator is used to determine the timing offset.