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. 12, 2018
Filed:
Mar. 08, 2016
Applicant:
Blackberry Limited, Waterloo, CA;
Inventor:
Shouxing Qu, Gloucester, CA;
Assignee:
BlackBerry Limited, Waterloo, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/26 (2006.01);
U.S. Cl.
CPC ...
H04L 27/2634 (2013.01); H04L 27/265 (2013.01); H04L 27/2637 (2013.01);
Abstract
A method and apparatus for orthogonal frequency division multiplexing (OFDM) modulation includes separating a frequency-domain sequence of complex numbers into a first portion and a second portion that is disjoint with the first portion, each of the first portion and the second portion including a respective half of the complex numbers of the frequency-domain sequence, and generating a time-domain sequence having a real in-phase component that is a function of the first portion only, and an imaginary quadrature-phase component that is a function of the second portion only.