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:
Mar. 22, 2016
Filed:
Oct. 08, 2010
Applicants:
Huan Wu, Kanata, CA;
Yongkang Jia, Kanata, CA;
Sean Bartholomew Simmons, Waterloo, CA;
Inventors:
Assignee:
BlackBerry Limited, Waterloo, Ontario, CA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 7/04 (2006.01); H04L 25/02 (2006.01); H04L 1/00 (2006.01); H04L 1/20 (2006.01); H04L 25/03 (2006.01); H04B 7/06 (2006.01); H04W 24/10 (2009.01);
U.S. Cl.
CPC ...
H04L 25/0204 (2013.01); H04B 7/0689 (2013.01); H04L 1/0026 (2013.01); H04L 1/0031 (2013.01); H04L 1/20 (2013.01); H04L 25/03343 (2013.01); H04B 7/0452 (2013.01); H04B 7/063 (2013.01); H04B 7/0632 (2013.01); H04B 7/0639 (2013.01); H04B 7/0697 (2013.01); H04L 25/0244 (2013.01); H04L 25/0248 (2013.01); H04W 24/10 (2013.01);
Abstract
A method, computer program, device and system are provided for determining channel state information for use in a wireless communications network. The channel state information includes a rank indicator (RI), precoding matrix index (PMI) and channel quality indicator (CQI). The RI, PMI or CQI can be determined based on channel covariance estimation and the Taylor series approximation of its inverse. Further, the RI and PMI can be determined separately.