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. 19, 2012
Filed:
Mar. 17, 2009
Bishwarup Mondal, Oak Park, IL (US);
Kevin L. Baum, Rolling Meadows, IL (US);
Amitabha Ghosh, Buffalo Grove, IL (US);
Timothy Thomas, Palatine, IL (US);
Frederick Vook, Schaumburg, IL (US);
Fan Wang, Chicago, IL (US);
Bishwarup Mondal, Oak Park, IL (US);
Kevin L. Baum, Rolling Meadows, IL (US);
Amitabha Ghosh, Buffalo Grove, IL (US);
Timothy Thomas, Palatine, IL (US);
Frederick Vook, Schaumburg, IL (US);
Fan Wang, Chicago, IL (US);
Motorola Mobility, Inc., Libertyville, IL (US);
Abstract
A method and system that enables the usage of sounding-based feedback or analog feedback in a MIMO communication system with non-beamformed or broadcast pilot symbols is disclosed. The mobile station may employ a feedback channel to send a sounding waveform to a base station, a feedforward channel to receive from the base station codebook weights derived from the send sounding waveform, a receiver to receive communication from the base station, and a processor to detect beamformed data from the received communication and received codebook weights from the base station. The base station processes the sounding waveform to determine codebook weights on groups of subcarriers. Additionally, the base station transmits the beamformed payload and broadcast pilots to the mobile station.