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:
Dec. 25, 2012
Filed:
Feb. 09, 2009
Sriram Lakshmanan, Atlanta, NJ (US);
Karthikeyan Sundaresan, Howell, NJ (US);
Ravindranath Kokku, Monmouth Junction, NJ (US);
Mohammad Ali Khojastepour, North Brunswick, NJ (US);
Sriram Lakshmanan, Atlanta, NJ (US);
Karthikeyan Sundaresan, Howell, NJ (US);
Ravindranath Kokku, Monmouth Junction, NJ (US);
Mohammad Ali Khojastepour, North Brunswick, NJ (US);
NEC Laboratories America, Inc., Princeton, NJ (US);
Abstract
Systems and methods are disclosed for transmitting signals between a transmitter and a receiver by differentially estimating channel coefficients for each of the antenna elements relative to a reference antenna element; determining beam weights to remove oscillator induced phase or offset; and applying a correction (beamforming solution) at the transmitter to make the phase of the received signal from different antenna elements to be coherently combined at the receiver.