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    • 3. 发明申请
    • METHOD AND SYSTEM FOR PREVENTING CALL DROP BY RESTRICTING OVERHEAD MESSAGE UPDATED IN 1X SYSTEM DURING 1XEV-DO TRAFFIC STATE
    • 在1XEV-DO交通状态期间通过限制1X系统中更新的超级消息来防止呼叫丢失的方法和系统
    • WO2004060013A1
    • 2004-07-15
    • PCT/KR2003/002720
    • 2003-12-12
    • SK TELECOM CO., LTD.LEE, Jonghun
    • LEE, Jonghun
    • H04Q7/38
    • H04W36/0066H04W76/20
    • The present invention relates to a method and system for preventing a call drop by limiting a search time of a 1X system while in traffic with a 1xEV-DO system. The system comprises: a hybrid access terminal, supporting both a 1xEV-DO system and a 1X system, for periodically switching over to the 1X system and receiving an overhead message while in traffic with the 1xEV-DO system, and switching back to the 1xEV-DO system upon receiving a prescribed overhead message a base station transceiver subsystem for exchanging a voice data or a packet data with the hybrid access terminal a mobile switching center for providing a communication path for the hybrid access terminal; and a packet data serving node connected to the 1xEV-DO controller for exchanging the packet data with the 1xEV-DO system.
    • 本发明涉及通过在1xEV-DO系统的业务中限制1X系统的搜索时间来防止呼叫掉线的方法和系统。 该系统包括:混合接入终端,同时支持1xEV-DO系统和1X系统,用于在与1xEV-DO系统通信时周期性地切换到1X系统并接收开销消息,并切换回1xEV -DO系统,其在接收到规定的开销消息时,用于与所述混合接入终端交换语音数据或分组数据的基站收发器子系统,用于为所述混合接入终端提供通信路径的移动交换中心; 以及连接到1xEV-DO控制器的分组数据服务节点,用于与1xEV-DO系统交换分组数据。