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    • 8. 发明申请
    • HETEROGENEOUS COMMUNICATION SYSTEM AND METHOD FOR CIRCUIT SWITCHED HANDOVER
    • 异步通信系统和电路切换切换方法
    • US20110075632A1
    • 2011-03-31
    • US12893100
    • 2010-09-29
    • Wan-Seon LimJeong-Yoon LeeDong-Wook KimYoung-Joo Suh
    • Wan-Seon LimJeong-Yoon LeeDong-Wook KimYoung-Joo Suh
    • H04W36/12
    • H04W36/0022H04W36/14H04W88/16
    • A heterogeneous communication system of performing a handover from a WiMAX communication system to a LTE communication system includes a UE adapted to request a handover connection establishment to the LTE communication system while receiving a CS service from the WiMAX communication system, request an authentication to the first WiMAX system, preferentially perform the handover to the LTE communication system, and switch to the LTE communication system in response to a handover message; and a GANC adapted to deliver the request of the handover connection establishment to the LTE communication system, notify the procedure of the authentication to the LTE communication system and provide the handover command message to the UE to switch to the LTE communication system, thereby providing the CS service to the UE through the LTE communication system. A handover from an LTE communication system to a WiMAX communication system is also disclosed.
    • 执行从WiMAX通信系统到LTE通信系统的切换的异构通信系统包括适于在从WiMAX通信系统接收CS服务的同时向LTE通信系统请求切换连接建立的UE,请求对第一 WiMAX系统优先执行到LTE通信系统的切换,并且响应于切换消息切换到LTE通信系统; 以及适于向LTE通信系统发送切换连接建立请求的GANC,向LTE通信系统通知认证过程,并向UE提供切换命令消息以切换到LTE通信系统,从而提供 通过LTE通信系统向UE提供CS服务。 还公开了从LTE通信系统到WiMAX通信系统的切换。