Patent ID: 8160078
Filing Date: 2012-04-17
Classification: H04L,H04W

Abstract:
1. An on-demand method of routing data between a plurality of local peer groups, where each of the local peer groups includes a plurality of moving nodes, the method comprising: transmitting a route request message from a source node, the route request message includes at least an identifier for a destination node, an identifier of a source node and a previous LPG identifier; relaying the route request message to a known native boundary node, a node's status as a boundary node is periodically advertised via a periodic broadcast, each node maintains a list of boundary nodes based on said periodic advertisement in said periodic broadcast, the boundary node is selected by a group header node for a renewable time-to-live; forwarding the route request message to at least one known foreign boundary node; determining if a destination node corresponding to the identifier for a destination node is within an LPG for the at least one known foreign boundary node; relaying the route request message to another foreign boundary node if the destination node is not within the LPG; relaying the route request message to the destination node if the destination node is within the LPG; receiving the route request message at the destination node; transmitting a routing response to the source node by the destination node; relaying the routing response to the source node through a first path discovered by the route request message; receiving the routing response at the source node; and transmitting the data, upon receipt of the routing response, said data is relayed using a second path discovered by the routing response.