Patent ID: 7721106
Filing Date: 2010-05-18
Classification: H04L,H04W

Abstract:
1. A method for allowing a user device having dual radio interfaces to access a wireless local area network, comprising the steps of: receiving, by a wireless local area network, from a cellular radio interface of the user device, via an internet network, a registration message that includes a user device public key, the user device having been authenticated by a cellular network, the wireless local area network having a pre-established trust relationship with the cellular network; determining whether a source internet protocol address received from the cellular network is within a predetermined range of source internet protocol addresses, and if so, generating a session key in response to the user device public key, the session key adapted to be decrypted using a user device private key, transmitting the session key to the cellular network from the wireless local area network via the internet network, and allowing a wireless local area network radio interface of the user device to access the wireless local area network using the session key.