公开(公告)号：US06560239B1

公开(公告)日：2003-05-06

申请号：US09111175

申请日：1998-07-08

申请人： Lars Anders Frid ,  Göran Leif Andersson ,  Ulf Ingemar Olsson ,  Chris Kannas ,  Martin Bäckström

发明人： Lars Anders Frid ,  Göran Leif Andersson ,  Ulf Ingemar Olsson ,  Chris Kannas ,  Martin Bäckström

IPC分类号： H04L1256

CPC分类号： H04W4/16 ,  H04M3/428

摘要： A method and system enables a packet-switched data communication in a wireless communications system to be quickly and easily reestablished after interruption. The computer communications protocol that has been negotiated during the establishment of the packet-switched data communication may be saved upon interruption and later restored. In an exemplary embodiment, a wireless subscriber activates a call-waiting-type service along with an option to retain a packet-switched data communication. Thereafter, the subscriber may be engaged in a data communication on a packet data channel of the wireless communications system. Acceptance of a subsequent incoming, circuit-switched voice call causes the data packet session to be suspended, but the negotiated parameters of the computer communications protocol are saved. After the subscriber terminates the voice call, another data packet session is established with the saved parameters without needing to renegotiate the computer communications protocol parameters. Packet data applications that, have not timed-out may resume execution without reinitialization.

摘要翻译： 一种方法和系统使得无线通信系统中的分组交换数据通信能够在中断之后快速且容易地重新建立。 在建立分组交换数据通信期间已经协商的计算机通信协议可以在中断时被保存并稍后恢复。 在示例性实施例中，无线用户激活呼叫等待型服务以及保留分组交换数据通信的选项。 此后，用户可以参与无线通信系统的分组数据信道上的数据通信。 接受后续进入的电路交换语音呼叫导致数据分组会话被暂停，但是保存了计算机通信协议的协商参数。 在用户终止语音呼叫之后，使用保存的参数建立另一数据分组会话，而不需要重新协商计算机通信协议参数。 没有超时的数据包数据应用程序可以在不重新初始化的情况下恢复执行。