An unlicensed wireless service is adapted to generate the interface protocols of a licensed wireless service to provide transparent transition of communication sessions between a licensed wireless service and an unlicensed wireless service. In one embodiment, a mobile station includes level 1, level...http://www.google.com/patents/US20080299976?utm_source=gb-gplus-sharePatent US20080299976 - Network controller messaging for channel activation in an unlicensed wireless communication system
