Patent ID: 9560524
Date: 2017-01-31
CPC Classifications: H04L,H04W

Claim:
1. A method of operating a wireless communication system to authorize communications, the method comprising: receiving communications directed to an application system in a wireless communication network from a wireless communication device via an untrusted wireless access node external to the wireless communication network, wherein the application system provides a communications service in the wireless communication network and the wireless communication device has been previously authenticated to access the wireless communication network via a trusted wireless access node; processing a signature included with the communications to determine when the communications are authorized for the communication service provided by the application system, wherein the communications comprise a plurality of data packets and the signature is included in a header of the data packets, the signature comprising a unique identifier generated at the wireless communication device corresponding to an identity of the wireless communication device and an identity of an integrated circuit within the wireless communication device that is associated with a subscriber of the wireless communication network; and when the communications are authorized for the communication service, replacing an IP address associated with the data packets with a private IP address that is trusted by the wireless communication network and transferring the communications to the application system.