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. 16, 2014
Filed:
May. 03, 2011
Applicants:
Tan Ho, Stittsville, CA;
Kris Bailey, Ottawa, CA;
Peter Zahariev Rashev, Calgary, CA;
Inventors:
Assignee:
Optis Cellular Technology, LLC, Plano, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 7/02 (2006.01); H04L 1/02 (2006.01); H04L 27/36 (2006.01); H04B 1/04 (2006.01); H03F 1/32 (2006.01); H03F 3/24 (2006.01); H04L 25/03 (2006.01);
U.S. Cl.
CPC ...
H04L 27/368 (2013.01); H04B 1/0475 (2013.01); H04L 25/03343 (2013.01); H03F 1/3247 (2013.01); H04B 2001/0441 (2013.01); H04L 2025/03426 (2013.01); H03F 3/24 (2013.01);
Abstract
Pre-distortion techniques, devices and systems for a multi-channel transmitter are described. An adaptation time is provided for each of the transmit chains in the multi-channel transmitter. During each adaptation time an output of a transmit chain is coupled to a shared feedback receiver. The shared feedback receiver generates a feedback signal that is used to vary pre-distortion for that transmit chain. A commutation controller varies at least one of: (a) an amount of the adaptation time for a transmit chain and (b) an order in which each of the transmit chains receives its adaptation time.