Patent ID: 8160588
Filing Date: 2012-04-17
Classification: H04B,H04L,H04M,H04W

Abstract:
1. A method for registering a mobile station and handing over a communication session from a licensed wireless communication system to an unlicensed wireless communication system, the unlicensed wireless communication system comprising an indoor system server for communicatively coupling the unlicensed wireless communication system to the licensed wireless communication system, the method comprising: at the mobile station, establishing the communication session with the licensed wireless communication system; at the mobile station, establishing a connection with the unlicensed wireless communication system through the indoor system server while maintaining the communication session with the licensed wireless communication system; sending a registration message from the mobile station to the indoor system server to register the mobile station with the unlicensed wireless communication system; registering the mobile station with the unlicensed wireless communication system; and after registering the mobile station with the unlicensed wireless communication system, handing over the communication session from the licensed wireless communication system to the unlicensed wireless communication system.