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:
Dec. 10, 2019

Filed:

Nov. 22, 2017
Applicant:

Seoul National University R&db Foundation, Seoul, KR;

Inventors:

Yong Hwan Lee, Seoul, KR;

Jae Seok Bang, Seoul, KR;

Jin Seok Han, Gunpo-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 52/02 (2009.01); H04W 40/12 (2009.01); H04W 24/04 (2009.01); H04W 84/20 (2009.01);
U.S. Cl.
CPC ...
H04W 52/0206 (2013.01); H04W 40/12 (2013.01); H04W 24/04 (2013.01); H04W 84/20 (2013.01); Y02D 70/00 (2018.01); Y02D 70/142 (2018.01); Y02D 70/144 (2018.01); Y02D 70/162 (2018.01);
Abstract

Provided is a method for increasing the lifetime of devices of a cluster-tree structured multi-hop wireless communication system which uses a battery as the main power and includes an access point (AP) managing network operation and a plurality of devices connected to the AP, wherein some network devices operates as a router capable of having its child devices, the rest of the network device operate as an end device incapable of having its child devices, and the AP, the routers, and the end devices are connected in a parent-child device relationship. The method includes equalizing the average power consumption of each device by exchanging the roles of the router and the end device requiring different power consumption without interrupting normal network operation.


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