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:
Oct. 06, 2020

Filed:

May. 02, 2018
Applicant:

Extreme Networks, Inc., San Jose, CA (US);

Inventors:

Yong Kang, Palo Alto, CA (US);

Changming Liu, Cupertino, CA (US);

Assignee:

Extreme Networks, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/701 (2013.01); H04W 40/02 (2009.01); H04W 4/06 (2009.01); H04L 12/705 (2013.01); H04L 12/733 (2013.01); H04W 40/36 (2009.01); H04L 12/709 (2013.01); H04W 40/24 (2009.01); H04L 12/24 (2006.01); H04W 84/00 (2009.01); H04L 12/707 (2013.01); H04L 12/751 (2013.01); H04W 40/30 (2009.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
H04W 40/02 (2013.01); H04L 41/0893 (2013.01); H04L 45/00 (2013.01); H04L 45/18 (2013.01); H04L 45/20 (2013.01); H04L 45/245 (2013.01); H04W 4/06 (2013.01); H04W 40/24 (2013.01); H04W 40/246 (2013.01); H04W 40/36 (2013.01); H04L 45/02 (2013.01); H04L 45/22 (2013.01); H04L 69/22 (2013.01); H04W 40/30 (2013.01); H04W 84/005 (2013.01);
Abstract

A method and system for selecting a route in a wireless network for the transmission of a data packet between wireless nodes in the network using a modified link-state routing algorithm. A subset of nodes called portal nodes within the network are elected to do the broadcasting for the entire network. A wireless node identifies a unicast route back to its root portal node, and sends a link-state register message to this portal node. These link-state register messages received by each portal node are aggregated by them and are broadcast to each of the wireless nodes for storage. When a data packet is thereafter received by a wireless node from a neighboring node, it detects if the data packet satisfies one of a plurality of predetermined conditions and rebroadcasts the data packet to neighboring wireless nodes if none of the conditions is satisfied.


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