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:
May. 14, 2019

Filed:

Jul. 14, 2017
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Sumiyo Okada, Kawasaki, JP;

Yuji Nomura, Kawasaki, JP;

Fumiyuki Iizuka, Kawasaki, JP;

Hirokazu Iwakura, Adachi, JP;

Naoyoshi Ohkawa, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 12/26 (2006.01);
U.S. Cl.
CPC ...
H04L 43/10 (2013.01); H04L 43/022 (2013.01); H04L 43/028 (2013.01); H04L 43/106 (2013.01); H04L 43/12 (2013.01); H04L 43/04 (2013.01); H04L 43/06 (2013.01); H04L 43/08 (2013.01); H04L 43/0876 (2013.01); H04L 43/16 (2013.01); H04L 43/18 (2013.01);
Abstract

A computer obtains a first packet group transmitted wirelessly by a first wireless communication apparatus and a second packet group transmitted wirelessly by a second wireless communication apparatus. The computer then detects a first non-communication period, during which there are no packets transmitted by the first wireless communication apparatus for a prescribed time or longer, and also detects a second non-communication period, during which there are no packets transmitted by the second wireless communication apparatus for the prescribed time or longer. The computer then determines based on an overlap between the first and second non-communication periods whether the first and second wireless communication apparatuses are connected to the same wireless base station.


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