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:
Sep. 13, 2016
Filed:
Apr. 27, 2007
Applicants:
Tarik Muharemovic, Dallas, TX (US);
Zukang Shen, Richardson, TX (US);
Inventors:
Tarik Muharemovic, Dallas, TX (US);
Zukang Shen, Richardson, TX (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/04 (2006.01); H04L 12/66 (2006.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01); H04L 27/26 (2006.01); H04W 52/22 (2009.01); H04J 13/00 (2011.01); H04J 13/14 (2011.01); H04W 16/18 (2009.01);
U.S. Cl.
CPC ...
H04L 12/66 (2013.01); H04J 13/0062 (2013.01); H04J 13/14 (2013.01); H04L 5/0007 (2013.01); H04L 5/0016 (2013.01); H04L 5/0026 (2013.01); H04L 25/0224 (2013.01); H04L 25/0226 (2013.01); H04L 25/0228 (2013.01); H04L 27/2613 (2013.01); H04W 52/223 (2013.01); H04W 16/18 (2013.01);
Abstract
Methods and apparatus to allocate reference signals in wireless communication systems are disclosed. A disclosed example method comprises applying a first cyclic shift to a first reference sequence during a first time interval, and applying a second cyclic shift to a second reference sequence during a second time interval, wherein the first and second cyclic shifts are members of a set of cyclic shifts assigned to devices of a wireless region.