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:
Aug. 08, 2017

Filed:

Dec. 16, 2013
Applicant:

Intel Ip Corporation, Santa Clara, CA (US);

Inventors:

Qinghua Li, San Ramon, CA (US);

Hooman Shirani-Mehr, Portland, OR (US);

Yuan Zhu, Beijing, CN;

Xiaogang Chen, Beijing, CN;

Feng Xue, Redwood City, CA (US);

Assignee:

Intel IP Corporation, Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/04 (2017.01); H04B 7/06 (2006.01); H04W 8/08 (2009.01); H04L 5/00 (2006.01); H04B 1/56 (2006.01); H04W 48/16 (2009.01); H04W 36/30 (2009.01); H04W 24/00 (2009.01); H04W 36/26 (2009.01); H04W 48/18 (2009.01); H04B 7/0417 (2017.01); H04W 36/00 (2009.01); H04W 36/22 (2009.01); H04L 1/18 (2006.01); H04W 24/02 (2009.01); H04W 72/04 (2009.01); H04W 72/08 (2009.01); H04W 28/20 (2009.01); H04L 29/06 (2006.01); H04M 1/725 (2006.01); H04W 4/02 (2009.01); H04W 8/02 (2009.01); H04W 8/06 (2009.01); H04W 28/02 (2009.01); H04W 76/02 (2009.01); H04W 48/06 (2009.01); H04L 25/03 (2006.01); H04N 21/24 (2011.01); H04N 21/845 (2011.01); H04N 21/8543 (2011.01); H04B 7/0452 (2017.01); H04B 7/08 (2006.01); H04L 25/02 (2006.01); H04W 36/08 (2009.01); H04W 48/12 (2009.01); H04W 88/08 (2009.01); H04W 84/04 (2009.01); H04W 88/10 (2009.01); H04W 84/12 (2009.01); H04W 88/02 (2009.01); H04W 28/08 (2009.01);
U.S. Cl.
CPC ...
H04W 8/082 (2013.01); H04B 1/56 (2013.01); H04B 7/0417 (2013.01); H04B 7/0452 (2013.01); H04B 7/063 (2013.01); H04B 7/0619 (2013.01); H04B 7/0695 (2013.01); H04B 7/088 (2013.01); H04L 1/1864 (2013.01); H04L 5/0048 (2013.01); H04L 5/0051 (2013.01); H04L 5/0057 (2013.01); H04L 5/0085 (2013.01); H04L 25/0206 (2013.01); H04L 25/03305 (2013.01); H04L 65/4092 (2013.01); H04L 65/601 (2013.01); H04L 65/602 (2013.01); H04L 65/604 (2013.01); H04L 65/607 (2013.01); H04L 65/608 (2013.01); H04L 65/80 (2013.01); H04M 1/72572 (2013.01); H04N 21/2402 (2013.01); H04N 21/8456 (2013.01); H04N 21/8543 (2013.01); H04W 4/021 (2013.01); H04W 8/02 (2013.01); H04W 8/06 (2013.01); H04W 24/00 (2013.01); H04W 24/02 (2013.01); H04W 28/0226 (2013.01); H04W 28/0289 (2013.01); H04W 28/20 (2013.01); H04W 36/0005 (2013.01); H04W 36/0011 (2013.01); H04W 36/0022 (2013.01); H04W 36/22 (2013.01); H04W 36/26 (2013.01); H04W 36/30 (2013.01); H04W 48/06 (2013.01); H04W 48/16 (2013.01); H04W 48/18 (2013.01); H04W 72/0446 (2013.01); H04W 72/082 (2013.01); H04W 76/025 (2013.01); H04L 5/0007 (2013.01); H04L 2025/03426 (2013.01); H04W 28/085 (2013.01); H04W 36/08 (2013.01); H04W 48/12 (2013.01); H04W 72/046 (2013.01); H04W 84/042 (2013.01); H04W 84/045 (2013.01); H04W 84/12 (2013.01); H04W 88/02 (2013.01); H04W 88/08 (2013.01); H04W 88/10 (2013.01); Y02B 60/50 (2013.01);
Abstract

In embodiments, apparatuses, methods, and storage media may be described for reducing the overhead associated with the transmission of channel training signals from an eNodeB (eNB) of a wireless network. Specifically, the eNB may receive feedback from a user equipment (UE) regarding the received signal energy of a first and second beamformed signal produced with a first and second beamforming vector, respectively. The eNB may identify, based on the feedback of the received signal energy, a signal subspace and a null subspace. The eNB may then transmit a channel training signal to the signal subspace.


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