Apparatus, method and system for maintaining call control at a gateway mobile switching center utilizing a packet network
    1.
    发明授权
    Apparatus, method and system for maintaining call control at a gateway mobile switching center utilizing a packet network 有权
    利用分组网络在网关移动交换中心维护呼叫控制的装置,方法和系统

    公开(公告)号:US07142857B1

    公开(公告)日:2006-11-28

    申请号:US09558613

    申请日:2000-04-26

    IPC分类号: H04Q7/20

    摘要: The apparatus, method and system embodiments of the present invention provide for maintaining call control at a gateway mobile switching center (MSC), for roaming mobile units, utilizing a packet network or link, such as an ATM link. The preferred system embodiment includes a gateway MSC, a serving MSC, and a base station having a wireless link with the roaming mobile unit. The gateway MSC includes a protocol handler for voice (PHV). For any given incoming call for the roaming mobile unit or outgoing call from the roaming mobile unit, the gateway MSC designates a specific address (or channel) on the PHV, referred to as a data link connection identifier (DLCI), for use as an address for voice packets to be received from the roaming mobile unit via the base station and serving MSC, and the base station also provides a base station packet address to the gateway MSC, for use as an address for voice packets to be received from the gateway MSC (through the serving MSC) for the roaming mobile unit, thereby creating a full duplex packet link. The packet link serves as a voice path between the base station, the serving MSC, and gateway MSC, with all communication to and from the roaming mobile unit routed through the gateway MSC. The gateway MSC thereby maintains all call control for the roaming mobile unit for the implementation of advanced calling features, such as call waiting and three-way calling. In the preferred embodiment, the DLCI is included as a new parameter for ANSI-41 compatible messages. In addition, new ANSI-41 compatible messages are also utilized, a Gateway Origination Request containing the base station packet address and a Gateway Origination Request Return Result containing the new DLCI parameter.

    摘要翻译: 本发明的装置,方法和系统实施例提供了在网关移动交换中心(MSC)处,利用诸如ATM链路之类的分组网络或链路来漫游移动单元维护呼叫控制。 优选的系统实施例包括网关MSC,服务MSC和具有与漫游移动单元的无线链路的基站。 网关MSC包括用于语音(PHV)的协议处理程序。 对于漫游移动单元的任何给定来话呼叫或来自漫游移动单元的拨出呼叫,网关MSC在PHV上指定一个称为数据链路连接标识符(DLCI)的特定地址(或信道),以用作 用于经由基站和服务MSC从漫游移动单元接收的语音分组的地址,并且基站还向网关MSC提供基站分组地址,以用作从网关接收的语音分组的地址 MSC(通过服务MSC)用于漫游移动单元,由此创建全双工分组链路。 分组链路用作基站,服务MSC和网关MSC之间的语音路径,所有与通过网关MSC路由的漫游移动单元的通信。 因此,网关MSC维护用于漫游移动单元的所有呼叫控制,以实现诸如呼叫等待和三方通话的高级呼叫特征。 在优选实施例中,DLCI被包括作为ANSI-41兼容消息的新参数。 此外,还使用新的ANSI-41兼容消息,包含基站分组地址的网关发起请求和包含新的DLCI参数的网关发起请求返回结果。

    ANSI 41 dialed number validation
    2.
    发明授权
    ANSI 41 dialed number validation 有权
    ANSI 41拨打号码验证

    公开(公告)号:US06343215B1

    公开(公告)日:2002-01-29

    申请号:US09189821

    申请日:1998-11-10

    IPC分类号: H04Q720

    摘要: A cellular system in accordance with the principles of the present invention permits one node, or network element, within a cellular system to request dialed number validation from another network element in the cellular system. The invoking and responding nodes may be any of the following: a mobile switching center, a home location register, a service control point, or a service node. Upon reaching a state in call processing where further dialed number analysis may be required, the invoking node will send an ANSI-41 compliant dialed number validation request message to the node performing validation. The validating node will determine whether the dialed number is allowed under the subscriber's dialing plan. After making the determination, the validating node will return a message to the invoking node indicating whether the specified digits are allowed according to the subscriber's dialing plan.

    摘要翻译: 根据本发明的原理的蜂窝系统允许蜂窝系统内的一个节点或网络单元从蜂窝系统中的另一个网络单元请求拨打的号码验证。 调用和响应节点可以是以下任何一个:移动交换中心,归属位置寄存器,服务控制点或服务节点。 在呼叫处理中达到可能需要进一步拨打号码分析的状态时,调用节点将向执行验证的节点发送符合ANSI-41的拨号号码验证请求消息。 验证节点将确定用户拨号计划下是否允许拨打的号码。 在确定之后,验证节点将返回到调用节点的消息,指示根据用户的拨号计划是否允许指定的数字。