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    COMMUNICATION SYSTEM, MOBILE STATION, AND COMMUNICATION METHOD
    2.
    发明公开
    COMMUNICATION SYSTEM, MOBILE STATION, AND COMMUNICATION METHOD 有权
    通信系统，移动台和通信方法

    公开(公告)号：EP2822330A1

    公开(公告)日：2015-01-07

    申请号：EP13755784.9

    申请日：2013-02-26

    申请人： NTT DOCOMO, INC.

    发明人： TANAKA, Itsuma ,  TACHIKI, Masato ,  TAKEDA, Shinya

    IPC分类号： H04W48/18 ,  H04W36/14

    CPC分类号： H04W76/15 ,  H04W36/0011 ,  H04W36/14 ,  H04W48/18 ,  H04W76/18 ,  H04W76/19 ,  H04W80/04 ,  H04W88/06

    摘要： A UE 100 is connectable to an IP-CAN conforming to Internet protocol via any one of LTE supporting a service conforming to an IP multimedia subsystem and 3G not supporting the service conforming to the IP multimedia subsystem. In a case where the UE 100 receives a connection rejection notification from a SGSN capable of communicating with the IP multimedia subsystem after transitioning from LTE to 3G, the UE 100 suspends transmission of a request for reconnection to the IP access network only if the mobile station is camping in 3G through which the connection rejection notification has been received. Here, the connection rejection notification indicates that the UE 100 is not connectable to the IP multimedia subsystem.

    摘要翻译： UE 100可经由支持符合IP多媒体子系统的服务的LTE和不支持符合IP多媒体子系统的服务的3G中的任何一个连接到符合因特网协议的IP-CAN。 在UE 100从LTE转换到3G之后，从能够与IP多媒体子系统进行通信的SGSN接收到连接拒绝通知的情况下，UE 100仅在移动台停止向IP接入网络的重新连接请求的传输时 正在接收3G连接拒绝通知。 这里，连接拒绝通知指示UE 100不能连接到IP多媒体子系统。