Patent ID: 7200399

Claim:
A method for ciphering configuration in a communication system comprising a licensed wireless communication system and an unlicensed wireless communication system, wherein the unlicensed wireless communication system comprises an unlicensed network controller serving an unlicensed region, the method comprising: a) at the unlicensed network controller, receiving a base station system management application part (BSSMAP) cipher mode command from the licensed wireless communication system, said BSSMAP cipher mode command indicating that ciphering is required for a mobile station in said unlicensed region; and b) sending an unlicensed radio resource (RR) cipher mode command message containing cipher mode setting information from the unlicensed network controller to the mobile station, said cipher mode setting information for allowing the mobile station to enable ciphering when a call carried by the mobile station in said unlicensed region is subsequently handed over from the unlicensed wireless communication system to the licensed wireless communication system.