Patent ID: 8230076
Filing Date: 2012-07-24
Classification: H04W

Abstract:
1. A method for routing packets in a system of packet-switched networks comprising a plurality of home agents, at least one mobile node and at least one correspondent node, the mobile node having at least a first home address and communicating with the correspondent node over a first home agent of the plurality of home agents, the method comprising the following steps carried out by the mobile node: a) receiving an application layer request message from the correspondent node via the first home agent; b) receiving data packets from the correspondent node via the first home agent; c) looking up a correspondent node address in a part of the application layer request message; d) locating a second home agent of the plurality of home agents in proximity to a direct path between the mobile node and the correspondent node using the correspondent node address; e) establishing an optimized route via the second home agent, the establishing step comprising the steps of; f) executing an application signaling exchange between the correspondent node and the mobile node via the first home agent, wherein the correspondent node starts to transfer the data packets via the optimized route when both of the establishing and the executing steps are completed.