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:
Sep. 01, 2009
Filed:
Aug. 04, 2004
Jong-hun Park, Suwon-si, KR;
Yong Liu, New York, NY (US);
Myung-jong Lee, New York, NY (US);
Xu-hui HU, New York, NY (US);
Tae-kyung Kwon, New York, NY (US);
Jong-hun Park, Suwon-si, KR;
Yong Liu, New York, NY (US);
Myung-jong Lee, New York, NY (US);
Xu-hui Hu, New York, NY (US);
Tae-kyung Kwon, New York, NY (US);
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
A route recovery method in a wireless network of a tree topology, in which a second node, which is a lower node of a first node and is disconnected from the first node, recovers the route in the network. The route recovery method includes the second node broadcasting a local repair request (LREQ) packet, each node receiving the LREQ packet sending a local repair reply (LREP) packet to the second node to act as a relay node for the route recovery, the second node selecting the relay node from among the nodes sending the LREP packet, and sending a local repair confirm (LCON) packet from the second node to the relay node, and establishing the route between the second node and the first node by the relay node sending a local repair inform (LINF) packet to the first node.