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发明授权
CN103843447B 用于从PCH或FACH状态开始的语音呼叫建立的方法和系统 有权 转让

用于从PCH或FACH状态开始的语音呼叫建立的方法和系统
摘要：
一种在用户设备处用于建立电路交换呼叫的方法，所述用户设备处于小区前向接入信道（CELL_FACH）状态、小区寻呼信道（CELL_PCH）状态或UTRAN注册区域寻呼信道（URA_PCH）状态下，所述方法包括：接收对电路交换呼叫待处理的指示；向网络单元发送用于便于所述用户设备向小区专用信道（CELL_DCH）状态转移的消息，所述消息是具有指示待处理上行链路数据超过阈值的业务量指示符信息单元的小区更新消息或RRCConnectionRequest消息之一；以及建立所述电路交换呼叫。
摘要（英）：

A method at a user equipment for establishing a circuit switched call, the user equipment being in a Cell Forward Access CHannel (CELL_FACH) state, a Cell Paging CHannel (CELL_PCH) state or a UTRAN Registration Area Paging CHannel (URA_PCH) state, the method receiving an indication that a circuit switched call is pending; sending to a network element a message to facilitate the user equipment to transition to a Cell Dedicated CHannel (CELL_DCH) state, the message being one of a cell update message having a traffic volume indicator information element indicating that pending uplink data exceeds a threshold or an RRCConnectionRequest message; and establishing the circuit switched call.

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