Patent ID: 9112905
Filing Date: 2015-08-18
Classification: H04L,H04W

Abstract:
1. A method operational on an access terminal for facilitating device authentication of the access terminal while roaming within a visited network, comprising: obtaining a validation key associated with an access terminal equipment identifier of the access terminal, wherein the access terminal equipment identifier includes an International Mobile Equipment Identity (IMEI) or a Mobile Equipment Identity (MEID); generating a device authentication message including the access terminal equipment identifier, at least one nonce, and authentication data generated at least in part using the validation key; obtaining limited access to the visited network fro the purposes of transmitting the device authentication message through the visited network to a home validation server of a home network of the access terminal and then transmitting the device authentication message through the visited network to the home validation server to authenticate the access terminal as an authorized access terminal for accessing the visited network; and receiving a notification granting or denying the access terminal access to the visited network based on validation of the device authentication message.