Patent ID: 7315548
Filing Date: 2008-01-01
Classification: H04L,H04W

Abstract:
1. A method for determining a route between a node in a wireless multihopping communication network and a destination, the method comprising: determining, by the node, whether the destination is within the network; sending, by the node, a packet for delivery to an intelligent access point of the network with which the node is associated, for further delivery to the destination, when the node determines that the destination is outside the network; when the node determines that the destination is within the network, locating within a routing table, by the node, an existing route to the destination, and if the node cannot locate the existing route to the destination, further attempting, by the node, to obtain information pertaining to the route to the destination from the intelligent access point; when the node obtains the information from the intelligent access point, determining, based on the information, whether to further attempt to locate the route; and when the node determines it will further attempt to locate the route, attempting, by the node, to locate the route by performing an expanded ring search using a maximum time to live (TTL) being a function of a number of hops between the node and the intelligent access point.