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:
Jan. 01, 2019

Filed:

Feb. 01, 2017
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Toshiya Otomo, Kawasaki, JP;

Koichiro Yamashita, Hachioji, JP;

Takahisa Suzuki, Yokohama, JP;

Hiromasa Yamauchi, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 24/04 (2009.01); H04W 40/22 (2009.01); H04W 4/04 (2009.01); H04W 84/18 (2009.01);
U.S. Cl.
CPC ...
H04W 24/04 (2013.01); H04W 4/04 (2013.01); H04W 40/22 (2013.01); H04W 84/18 (2013.01);
Abstract

A first node included in a first layer determines whether there has occurred a failure in a sink node included in a second layer subordinate to the first layer. The first node requests a second node included in the second layer to collect information of a third node included in a third layer subordinate to the second layer when the first node determines that there has occurred a failure in the sink node. The first node determines a fourth node serving as a substitute for the failed sink node included in the second layer on a basis of the information of the third node collected by the second node.


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