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:
Feb. 10, 2009
Filed:
Feb. 09, 2005
Fan Wang, Vernon Hills, IL (US);
Amitava Ghosh, Buffalo Grove, IL (US);
Chandrasekar Sankaran, Arlington Heights, IL (US);
Jun Tan, Dearborn Heights, MI (US);
Fan Wang, Vernon Hills, IL (US);
Amitava Ghosh, Buffalo Grove, IL (US);
Chandrasekar Sankaran, Arlington Heights, IL (US);
Jun Tan, Dearborn Heights, MI (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
Various embodiments are described to provide for the transmission and reception of data in an improved manner. Data transmission is improved by including in a transmitter a null generator () to generate an output data symbol sequence that exhibits nulls in the frequency domain at particular frequencies that an input data symbol sequence does not. A pilot inserter () then adds a pilot symbol sequence to this output data symbol sequence to create a combined symbol sequence. Since the pilot symbol sequence exhibits pilot signals corresponding to the nulls of the output data symbol sequence in the frequency domain, the combined symbol sequence exhibits pilots that are orthogonal to the data in the frequency domain.