Method for route recovery in wireless network of tree topology
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United States of America Patent
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Sep 1, 2009
Grant Date -
Mar 3, 2005
app pub date -
Aug 4, 2004
filing date -
Sep 3, 2003
priority date (Note) -
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status (Latency Note)
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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.
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