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:
Apr. 23, 2019

Filed:

Mar. 03, 2014
Applicant:

Nec Corporation, Tokyo, JP;

Inventors:

Chaki Prakash, Tokyo, JP;

Masato Yasuda, Tokyo, JP;

Norihito Fujita, Tokyo, JP;

Assignee:

NEC Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 84/20 (2009.01); H04L 29/08 (2006.01); H04W 8/18 (2009.01); H04W 4/06 (2009.01); H04W 12/04 (2009.01); H04W 88/04 (2009.01);
U.S. Cl.
CPC ...
H04L 67/1051 (2013.01); H04L 67/1044 (2013.01); H04L 67/1048 (2013.01); H04W 4/06 (2013.01); H04W 8/186 (2013.01); H04W 12/04 (2013.01); H04W 84/20 (2013.01); H04W 88/04 (2013.01);
Abstract

A method to reduce group reformation time and maintain seamless connectivity in a peer-to-peer network at the time of disappearance of the Group Owner (GO). Each of the nodes is provided with an emergency leader list which prioritizes a predetermined number of emergency leader nodes each of which is a client node having intent of acting as an emergency leader, wherein the emergency leader list is prepared right at the time of group formation. The emergency leader nodes broadcast beacons when a leader node disappears from the group without notice. Each of the client nodes barring a first-priority emergency leader node of the emergency leader list connects to a highest priority one of emergency leader nodes detected by the client node.


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