Metropolitan IP aggregation network design tool
    1.
    发明授权
    Metropolitan IP aggregation network design tool 失效
    大都会IP​​聚合网络设计工具

    公开(公告)号:US08750161B1

    公开(公告)日:2014-06-10

    申请号:US12972651

    申请日:2010-12-20

    IPC分类号: H04L12/28

    CPC分类号: H04W40/02 H04L45/12 H04L45/64

    摘要: In a tool for use by network planners in designing metropolitan IP aggregation networks, several optimization methods are integrated into a tool. A k-means algorithm is used to choose access packet switch locations. A dual-k-means algorithm is used to choose the backbone switch locations. Each access packet switch is dual homed to two backbone packet switches using two diverse paths. The diverse path configuration is found using a maxflow-mincost algorithm on a modified fiber map topology. The link topology connecting the backbone packet switches to each other is designed using a heuristic that creates a skeleton network topology and then adds express links one by one, testing each link to assure reduced overall network cost. The resulting network topology is then improved upon by local search.

    摘要翻译: 在网络规划者用于设计城域IP聚合网络的工具中,将几种优化方法集成到工具中。 k-means算法用于选择接入分组交换机的位置。 双k均值算法用于选择主干交换机的位置。 每个接入分组交换机被双重归属到两个主干分组交换机,使用两个不同的路径。 在修改的光纤映射拓扑上使用maxflow-mincost算法找到不同的路径配置。 将骨干分组交换机连接到彼此的链路拓扑结构使用启发式设计,创建骨架网络拓扑,然后逐个添加快速链接,测试每个链路以确保降低整体网络成本。 然后通过本地搜索来改进所得到的网络拓扑。

    Automatic updating of a local database supporting local number
portability
    3.
    发明授权
    Automatic updating of a local database supporting local number portability 失效
    自动更新支持本地号码可移植性的本地数据库

    公开(公告)号:US5910981A

    公开(公告)日:1999-06-08

    申请号:US824786

    申请日:1997-03-26

    摘要: In accordance with the teachings of a prior application, in a telecommunications network, a local database stores destination telephone number information derived from a more global database, shared by a plurality of switching systems usually remote from all or most of the systems. One or more bit maps are used to store key indicators for each telephone number for which information may be required. This invention relates to a method and apparatus for automatically updating the local database, by recognizing that a switch identified as serving a directory number does not have access to the line corresponding to that number; when this condition is discovered, the global database is increased and the local database updated.

    摘要翻译: 根据先前申请的教导,在电信网络中,本地数据库存储从多个通常远离所有或大部分系统的多个交换系统共享的更全局的数据库导出的目的地电话号码信息。 一个或多个位图用于存储可能需要信息的每个电话号码的关键指标。 本发明涉及一种用于通过识别被识别为服务目录号码的交换机不能访问与该号码相对应的线路来自动更新本地数据库的方法和装置; 当发现这种情况时,增加全局数据库并更新本地数据库。

    Method and apparatus for providing telecommunications services
    4.
    发明授权
    Method and apparatus for providing telecommunications services 有权
    用于提供电信业务的方法和装置

    公开(公告)号:US06842513B1

    公开(公告)日:2005-01-11

    申请号:US09809965

    申请日:2001-03-16

    IPC分类号: H04M7/00 H04Q3/00 H04L12/66

    CPC分类号: H04Q3/0045 H04M7/128

    摘要: To facilitate routing changes, a telecommunications network (10, 10′, 10′″) includes a centralized network routing database (28) queried by each ingress switch upon receipt of a call by a calling subscriber (12). In response to the query, the network routing database returns to the querying switch the identity on the next (downstream) switch in the routing path. The querying switch then translates the switch identity to establish the link to that next switch. Because each querying switch makes the necessary translation of the next switch identity to make the link to the next switch, the centralized network database need not concern itself with the particular characteristics of the switch. To make global routing changes, only the network routing database need be updated, not each individual switch.

    摘要翻译: 为了促进路由改变,电信网络(10,10',10“)包括在接收到主叫用户(12)的呼叫时由每个入口交换机查询的集中式网络路由数据库(28)。 响应该查询,网络路由数据库在路由路径中的下一个(下游)交换机返回查询交换机的身份。 然后,查询交换机转换交换机标识以建立到该下一个交换机的链路。 因为每个查询交换机对下一个交换机标识进行必要的转换,以便链接到下一个交换机,所以集中式网络数据库不需要关心交换机的特定特性。 要使全局路由更改,只需要更新网络路由数据库,而不是每个单独的交换机。

    Method and apparatus using bit maps to access data for processing
telephone calls
    6.
    发明授权
    Method and apparatus using bit maps to access data for processing telephone calls 失效
    使用位图访问用于处理电话呼叫的数据的方法和装置

    公开(公告)号:US5740239A

    公开(公告)日:1998-04-14

    申请号:US534534

    申请日:1995-09-27

    IPC分类号: H04Q3/00 H04M3/00

    摘要: In a telecommunications network, a method and apparatus for decreasing access time of information normally stored in a data base, shared by a plurality of switching systems usually remote from all or most of the systems. One or more bit maps are used to store key indicators for each telephone number for which information may be required. In one specific embodiment, a bit map indicates whether the information is stored locally in the switch, so that an access to the remote database is not required. In another embodiment, a bit map stores an indication of whether the desired information is a default attribute, or one of a plurality of common attributes of the information being sought. Advantageously, the number of data accesses required of the remote data base is sharply reduced, thus reducing the average call set up time.

    摘要翻译: 在电信网络中,一种用于减少通常存储在数据库中的信息的访问时间的方法和装置,所述数据库通常远离所有或大部分系统的多个交换系统共享。 一个或多个位图用于存储可能需要信息的每个电话号码的关键指标。 在一个具体实施例中,位图指示信息是否本地存储在交换机中,使得不需要对远程数据库的访问。 在另一个实施例中,位图存储所期望的信息是默认属性的指示,还是正在寻找的信息的多个公共属性之一。 有利地,远程数据库所需的数据访问数量急剧减少,从而减少了平均呼叫建立时间。