Patent ID: 9143482
Filing Date: 2015-09-22
Classification: H04L,H04W

Abstract:
1. A method for verifying an authentication status of a wireless communication device having previously been authenticated by a first authentication server associated with a first wireless communication network, the method comprising: receiving, at a second authentication server associated with a second wireless communication network, a copy of a token associated with the wireless communication device; in response to receiving the copy of the token associated with the wireless communication device, transmitting, from the second authentication server to an intermediate server that is configured to communicate with the first authentication server and the second authentication server, a request for an identification of the first authentication server based on the received copy of the token, the first authentication server having previously provided the intermediate server with a correlation between the token and the identification of the first authentication server; receiving at the second authentication server, in response to the request, the identification of the first authentication server based on the correlation that the first authentication server had provided to the intermediate server; and responsive to receiving at the second authentication server the identification of the first authentication server, transmitting from the second authentication server to the first authentication server a request for a confirmation of an authentication status of the wireless communication device.