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.
Patent No.:
Date of Patent:
Jul. 03, 2012
Filed:
Feb. 27, 2009
Jae-ho Kim, Seoul, KR;
Min-hwan Song, Seoul, KR;
Il-yeup Ahn, Seoul, KR;
Sang-shin Lee, Seoul, KR;
Tae-hyun Kim, Seoul, KR;
Kwang-ho Won, Seoul, KR;
Jae-Ho Kim, Seoul, KR;
Min-Hwan Song, Seoul, KR;
Il-Yeup Ahn, Seoul, KR;
Sang-Shin Lee, Seoul, KR;
Tae-Hyun Kim, Seoul, KR;
Kwang-Ho Won, Seoul, KR;
Korea Electronics Technology Institute, Seongnam, Gyeonggi-province, KR;
Abstract
Provided is a beacon scheduling method based on a distributed address assignment scheme that schedules a beacon and minimizes data delay using non-collision of addresses in a network, such as a ZigBee network, that provides a distributed address system. In the method, a time offset Tbetween beacon reception from a parent device and beacon transmission of a device in a wireless network system having a tree structure may be obtained from T=SD×(1+O×B) according to an address of the device determined by a distributed address assignment mechanism to create a beacon transmission schedule, where SD denotes a super-frame duration, Odenotes a value for determining which child among sibling devices in the network the device corresponds to, and Bdenotes a maximum number of router devices that a sub-network having a depth d in a tree can have.