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:
Jul. 18, 2023

Filed:

Sep. 03, 2020
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Lele Zhang, Shanghai, CN;

Yajun Xia, Shanghai, CN;

Chuanwei Li, Shanghai, CN;

Li Zhao, Shanghai, CN;

Assignee:

Cisco Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 12/122 (2021.01); H04W 4/70 (2018.01); G16Y 30/10 (2020.01); H04L 9/40 (2022.01); H04W 24/08 (2009.01); H04W 64/00 (2009.01); H04L 43/0829 (2022.01); H04L 43/16 (2022.01); H04W 84/18 (2009.01);
U.S. Cl.
CPC ...
H04W 12/122 (2021.01); G16Y 30/10 (2020.01); H04L 43/0829 (2013.01); H04L 43/16 (2013.01); H04L 63/1416 (2013.01); H04W 4/70 (2018.02); H04W 24/08 (2013.01); H04W 64/00 (2013.01); H04L 2463/143 (2013.01); H04W 84/18 (2013.01);
Abstract

A method includes identifying a potentially malicious node using a rating assigned to nodes within the network and decrementing the rating based on detected dropped messages to identify a potentially malicious node. The malicious node is identified based on location information obtained from the nodes within the network and comparable distances from the potentially malicious node. The method further includes ending communications with the malicious node and selecting a new parent node based on a presumption that any of the plurality of nodes other than the malicious node are non-malicious.


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