Patent ID: 8190191

Claim:
A wireless transmit/receive unit (WTRU) comprising: a terminal equipment (TE) module including mobility middleware processing circuitry; an applications and protocols processor (APP) and a terminal interface (TI); the mobility middleware processing circuitr configured to provide the WTRU with access to a plurality of radio access technology (RAT) networks as the WTRU moves between one network and another; a user services identity module (USIM); a mobile termination (MT) module; a protocol stack; the mobility middleware processing circuitry configured to communicate with the USIM, the APP, the protocol stack and the MT module via a plurality of open application programming interfaces (APIs), and the mobility middleware processing circuitry configured to perform a security function to provide user pre-authentication to a particular RAT network based on information received from the USIM including: authentication and key agreement (AKA) information; and extensible authentication protocol (EAP) information.