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. 26, 2016

Filed:

Nov. 04, 2013
Applicants:

Haihua Yu, Beijing, CN;

Wei Wang, Beijing, CN;

Yan Sun, Beijing, CN;

Bin Da, Beijing, CN;

Yindong Zhang, Beijing, CN;

Inventors:

Haihua Yu, Beijing, CN;

Wei Wang, Beijing, CN;

Yan Sun, Beijing, CN;

Bin Da, Beijing, CN;

Yindong Zhang, Beijing, CN;

Assignee:

RICOH COMPANY, LTD., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04L 12/28 (2006.01); H04B 7/00 (2006.01); H04W 84/20 (2009.01); H04W 4/02 (2009.01); H04W 12/04 (2009.01); H04L 29/06 (2006.01); H04W 12/06 (2009.01);
U.S. Cl.
CPC ...
H04W 84/20 (2013.01); H04W 4/021 (2013.01); H04W 12/04 (2013.01); H04L 63/107 (2013.01); H04W 12/06 (2013.01);
Abstract

Disclosed are an area-limited self-organized wireless network management method, a communication apparatus, and a system. The method comprises a step of, when a communications apparatus which is entering the limited area receives area signals for indicating a specific area in which network nodes are located, determining by the communications apparatus whether the master node exists in the limited area; a step of, if it is determined that the master node exists, performing identity authentication with regard to the master node and letting the communications apparatus itself be a sub node by the communications apparatus; and a step of, if it is determined that the master node does not exist, letting the communications apparatus itself be the master node by the communications apparatus, wherein, the master node is in charge of entering of a new sub node and synchronization of shared secret keys between the network nodes.


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