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    • 9. 发明公开
    • Prepaid mobile communcations services using signalling transfer point
    • Vorausbezahlte移动社区dienste手套Signaltransferpunkt
    • EP1189473A2
    • 2002-03-20
    • EP01307836.5
    • 2001-09-14
    • Comverse Inc.
    • Haas, Irwin MarkHaran, Dan
    • H04Q7/38
    • H04W8/10H04W4/16
    • A signaling relay point (SRP) facilitates providing a mobile communications service to a prepaid mobile station under a selected condition, such as when the prepaid mobile station is roaming outside its home mobile network. The signaling relay point is disposed at a threshold point of a home location register (HLR) of the home mobile network. A visitor location register (VLR), associated with a switching point at which the prepaid mobile station is registering, sends a location update message to the home location register. At the threshold point, the signaling relay point (SRP) intercepts the location update message and extracts data identifying the prepaid mobile station and a visited mobile network comprising the serving switching point. The signaling relay point (SRP) determines whether the prepaid mobile station is roaming, based on the network identifying data. If the prepaid mobile station is roaming, the signaling relay point (SRP) intercepts and modifies a subscriber data insertion message sent from the home location register toward the visitor location register. The signaling relay point inserts forced routing data into the subscriber data insertion message. The forced routing data instructs the serving switching point to route calls originating from the prepaid mobile station in the visited mobile network through a specified gateway. The specified gateway receives call control instructions from a service node in communication with a prepaid service accounting system in the home mobile network. If prepaid roaming is not permitted in the visited mobile network, the signaling relay point rejects the location update message.
    • 信令中继点(SRP)有助于在所选择的条件下,例如当预付费移动站在家庭移动网络之外漫游时,向预付费移动站提供移动通信服务。 信令中继点设置在家庭移动网络的归属位置寄存器(HLR)的阈值点处。 与预付费移动台正在注册的切换点相关联的访问者位置寄存器(VLR)向位置寄存器发送位置更新消息。 在阈值点,信令中继点(SRP)拦截位置更新消息并提取标识预付费移动站的数据和包括服务交换点的被访问移动网络。 信令中继点(SRP)基于网络识别数据确定预付费移动台是否正在漫游。 如果预付费移动台正在漫游,则信令中继点(SRP)拦截并修改从归属位置寄存器向访问者位置寄存器发送的用户数据插入消息。 信令中继点将强制路由数据插入用户数据插入消息。 强制路由数据指示服务交换点通过指定的网关路由来自被访问移动网络中的预付费移动站的呼叫。 指定的网关从家庭移动网络中的预付费服务计费系统通信的服务节点接收呼叫控制指令。 如果访问移动网络中不允许预付费漫游,信令中继点将拒绝该位置更新消息。