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.

Date of Patent:
Mar. 03, 2015

Filed:

Mar. 31, 2011
Applicants:

Rohit U. Nabar, Santa Clara, CA (US);

Hongyuan Zhang, Fremont, CA (US);

BO Wang, Sunnyvale, CA (US);

Inventors:

Rohit U. Nabar, Santa Clara, CA (US);

Hongyuan Zhang, Fremont, CA (US);

Bo Wang, Sunnyvale, CA (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 7/185 (2006.01); H04W 4/00 (2009.01); H04B 7/216 (2006.01); H04J 3/00 (2006.01); H04B 15/00 (2006.01); H04B 1/04 (2006.01); H04B 1/18 (2006.01); H04M 1/00 (2006.01); H04Q 3/00 (2006.01); H04B 1/02 (2006.01); H04L 1/16 (2006.01); H04J 3/16 (2006.01);
U.S. Cl.
CPC ...
H04J 3/16 (2013.01); H04L 1/16 (2013.01);
Abstract

A transmitter beamforming technique for use in a MIMO wireless communication system determines (i) a partial description of a reverse channel without determining a full dimensional description of the reverse channel and (ii) a partial description of a forward channel without determining a full dimensional description of the forward channel. A correction matrix is developed from the partial description of the reverse channel and a partial description of the forward channel. The correction matrix is used to process signals to be transmitted via the forward channel, and a steering matrix is used to perform beamforming in the forward channel.


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