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:
Feb. 19, 2019

Filed:

Jun. 28, 2017
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Vaibhav Singhal, San Diego, CA (US);

Heechoon Lee, San Diego, CA (US);

Alexei Yurievitch Gorokhov, San Diego, CA (US);

Sarabjot Singh Khangura, San Diego, CA (US);

Chengjin Zhang, San Diego, CA (US);

Amir Farajidana, Sunnyvale, CA (US);

Amir Aminzadeh Gohari, Sunnyvale, CA (US);

Wenshu Zhang, San Diego, CA (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 24/08 (2009.01); H04L 5/00 (2006.01); H04W 72/04 (2009.01); H04W 76/15 (2018.01); H04W 24/04 (2009.01); H04W 76/19 (2018.01);
U.S. Cl.
CPC ...
H04W 24/08 (2013.01); H04L 5/0005 (2013.01); H04L 5/006 (2013.01); H04L 5/0048 (2013.01); H04L 5/0057 (2013.01); H04W 72/042 (2013.01); H04W 72/0446 (2013.01); H04W 76/15 (2018.02); H04W 24/04 (2013.01); H04W 76/19 (2018.02); Y02D 70/00 (2018.01);
Abstract

In wireless communication networks using carrier aggregation including a secondary component carrier in unlicensed spectrum, a user equipment (UE) may monitor a downlink radio link quality of secondary cells for an event indicating failure of a communication link in the unlicensed spectrum with a secondary cell. The UE detects one or more failure events based on the downlink radio link quality. When a designated set of failure events is detected, the UE declares a failure state on the secondary cell. In response to the failure state, the UE may adjust operations related to the secondary component carrier in the unlicensed spectrum in order to save power and resources.


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