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:
Dec. 19, 2017

Filed:

Mar. 17, 2016
Applicant:

Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu, TW;

Inventors:

Kenneth L. Stanwood, Vista, CA (US);

David Gell, San Diego, CA (US);

Murat Karsi, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/00 (2006.01); H04W 72/08 (2009.01); H04L 5/00 (2006.01); H04J 11/00 (2006.01); H04W 24/02 (2009.01); H04L 25/02 (2006.01); H04B 7/0413 (2017.01); H04B 7/08 (2006.01); H04W 24/08 (2009.01); H04W 72/04 (2009.01); H04W 74/00 (2009.01); H04W 84/04 (2009.01); H04W 88/02 (2009.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H04W 72/082 (2013.01); H04B 7/0413 (2013.01); H04B 7/0897 (2013.01); H04J 11/0056 (2013.01); H04J 11/0059 (2013.01); H04L 5/005 (2013.01); H04L 5/0023 (2013.01); H04L 5/0058 (2013.01); H04L 5/0073 (2013.01); H04L 25/0228 (2013.01); H04W 24/02 (2013.01); H04W 24/08 (2013.01); H04W 72/0453 (2013.01); H04W 74/004 (2013.01); H04L 5/006 (2013.01); H04W 84/045 (2013.01); H04W 88/02 (2013.01); H04W 88/08 (2013.01);
Abstract

An access node in a wireless communication network receives a transmission that includes first and second signals. The first and second signals may be layers of a multiple-input multiple-output transmission and may also be from first and second terminal nodes. The access node derives first and second local reference signals from the transmission received using first and second antennas and estimates channel transfer functions associated with the channel through with the transmission is received. Estimating the channel transfer function can include correlating at least a portion of an expected reference signal associated with the first signal with a corresponding portion of the first local reference signal and correlating at least a portion of an expected reference signal associated with the second signal with a corresponding portion of the second local reference signal. The expected reference signal portions used to estimate the channel transfer functions may be non-orthogonal.


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