Patent ID: 8923515
Filing Date: 2014-12-30
Classification: H04W

Abstract:
1. A method for maintaining routing information for a wireless device, the method comprising: authenticating the wireless device, including: determining wireless device information, including receiving a wireless device name, a wireless device name length, and a wireless device public key; generating a shared secret in accordance with the wireless device name and the wireless device public key; deriving a session key using the wireless device information; validating an authentication initiating message from the wireless device using the session key; and transmitting an authentication initiating response; determining, by a target communications controller, an original address of the wireless device handed over from a source communications controller, wherein the original address is assigned by an original communications controller; and updating, by the target communications controller, routing information associated with the wireless device using a border gateway protocol message if the original address lies within a range of addresses managed by a communications system including the target communications controller and an aggregation router, wherein the routing information is stored at the aggregation router.