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. 19, 2016

Filed:

Sep. 20, 2011
Applicants:

Cheng LI, Beijing, CN;

Jun Tian, Beijing, CN;

Chao LV, Beijing, CN;

Hao Wang, Beijing, CN;

Yuuta Nakaya, Kawasaki, JP;

Inventors:

Cheng Li, Beijing, CN;

Jun Tian, Beijing, CN;

Chao Lv, Beijing, CN;

Hao Wang, Beijing, CN;

Yuuta Nakaya, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01); H04L 12/721 (2013.01); H04W 28/06 (2009.01); H04W 84/18 (2009.01);
U.S. Cl.
CPC ...
H04L 45/123 (2013.01); H04W 28/06 (2013.01); H04W 84/18 (2013.01);
Abstract

A method for realizing route discovery in a network includes: classifying a level of a node in the network; receiving a route request packet from a node adjacent to the node; comparing a node level indicated by node level information contained in the received route request packet with the level of the node; updating, in a case where the level of the node is higher than the node level indicated by the node level information contained in the route request packet, the node level indicated by the node level information contained in the route request packet to be the level of the node; and forwarding the updated route request packet to other nodes adjacent to the node.


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