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:
Aug. 18, 2020

Filed:

Apr. 11, 2018
Applicant:

Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;

Inventors:

Yasutaka Serizawa, Tokyo, JP;

Takashi Takeuchi, Tokyo, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 40/22 (2009.01); H04B 7/14 (2006.01); H04W 84/18 (2009.01); H04W 88/04 (2009.01); H04B 7/26 (2006.01); H04W 72/12 (2009.01);
U.S. Cl.
CPC ...
H04W 40/22 (2013.01); H04B 7/14 (2013.01); H04B 7/2606 (2013.01); H04W 72/1278 (2013.01); H04W 84/18 (2013.01); H04W 88/04 (2013.01);
Abstract

There is provided a technique that enables flexible response to system configurations, application, and aims in a wireless connection sensor network system. A multihop wireless communication system includes an aggregation device and multiple wireless terminals connected to the aggregation device in wireless connection. The aggregation device includes, in a data request packet to request the data, a communication requirement to transmit data, and transmits the data request packet to the wireless terminal to be a data request destination terminal through the wireless terminal to be a relay terminal. The relay terminal and the data request destination terminal transmit a data packet including the requested data to the aggregation device in accordance with the communication requirement.


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