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:
Nov. 17, 2009
Filed:
Jul. 08, 2004
Applicants:
Jae H Son, Dallas, TX (US);
Jan C Olivier, Irving, TX (US);
Victor Stolpman, Dallas, TX (US);
Tony Reid, Plano, TX (US);
Inventors:
Jae H Son, Dallas, TX (US);
Jan C Olivier, Irving, TX (US);
Victor Stolpman, Dallas, TX (US);
Tony Reid, Plano, TX (US);
Assignee:
Nokia Corporation, Espoo, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
Fast fading in cellular systems causes time variation of the Channel Impulse Response (CIR) resulting in significant performance degradation that is reduced by adding a pulse train to the transmitted data symbols and estimating the CIR by averaging the symbols as they vary from one OFDM symbol to another within the physical data frame (or packet).