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1. 发明授权

US07286480B2 Method and system for design and routing in transparent optical networks 有权
标题翻译：透明光网络的设计与布线方法与系统
公开(公告)号：US07286480B2
公开(公告)日：2007-10-23
申请号：US10768911
申请日：2004-01-30
申请人： Tamra Carpenter , David Shallcross , Joel Gannett , Janet Jackel , Ann Von Lehmen
发明人： Tamra Carpenter , David Shallcross , Joel Gannett , Janet Jackel , Ann Von Lehmen
IPC分类号： H04L12/26 , H04L12/28 , H04J14/08 , G06F15/177
CPC分类号： H04Q11/0062 , H04J14/0227 , H04J14/0241 , H04J14/0284 , H04Q2011/0073 , H04Q2011/0086
摘要： The present invention relates to a method and system for design and routing in telecommunications networks having transparent elements such as photonic switches. Transparent optical networks transmit signals optically, performing both switching and amplification photonically. As a result, transparent networks may be more economical than conventional “opaque” optical networks that convert signals to electronic form at each network node because they do not require as much equipment for performing optical-electrical conversion. However, transparent networks pose new operational challenges. Physical-layer impairments that are repaired by optical-electrical-optical (OEO) regeneration can accumulate along (transparent) connection paths. To effectively deploy and utilize transparency, mechanisms to assure that impairment-feasible paths exist and can be identified in the network are required. The present invention provides: 1) a method for locating OEO-regeneration capability to assure the existence of impairment-feasible paths in a network and 2) a method for identifying impairment-feasible connection paths in a network of transparent and OEO-capable nodes. The first is a method related to network design, which models the design problem as a variation of a connected dominating set problem. The second is a method related to network routing, which transforms the impairment-aware routing problem into a shortest-path problem in an expanded network. The design methodology of the present invention employs both domination and connectability concepts to enable sparser placement of OEO regeneration capability within networks. Further, the routing methodology of the present invention provides a mechanism for finding feasible routes with respect to impairment constraints while minimizing the use of OEO interfaces to assure such feasibility.
摘要翻译：本发明涉及一种具有透明元件（如光子开关）的电信网络中的设计和布线方法和系统。透明光网络光学传输信号，光子执行切换和放大。因此，透明网络可能比传统的“不透明”光网络更经济，因为它们不需要太多的设备来执行光电转换，因此在每个网络节点将信号转换成电子形式。然而，透明网络构成新的业务挑战。通过光电（OEO）再生修复的物理层损伤可以沿（透明）连接路径累积。为了有效地部署和利用透明度，需要确保网络中存在并可以识别损伤可行路径的机制。本发明提供：1）一种用于定位OEO再生能力以确保在网络中存在损害可行路径的方法，以及2）用于识别透明和具有OEO能力的节点的网络中的可能损害可行连接路径的方法。第一种是与网络设计相关的方法，其将设计问题模型化为连接主导集合问题的变体。第二种是与网络路由相关的方法，其将损害感知路由问题转化为扩展网络中的最短路径问题。本发明的设计方法采用支配和可连接性概念，以便在网络内更轻松地放置OEO再生能力。此外，本发明的路由方法提供了一种机制，用于在减少OEO接口的使用以确保这种可行性的同时，找到关于损害约束的可行路由。

2. 发明授权

US07082401B2 Digital subscriber line network deployment method 有权
标题翻译：数字用户线网络部署方式
公开(公告)号：US07082401B2
公开(公告)日：2006-07-25
申请号：US09816035
申请日：2001-03-23
申请人： Clifford Allen Behrens , Tamra Carpenter , Martin Eiger , Hanan Luss , George Seymour , Paul Seymour
发明人： Clifford Allen Behrens , Tamra Carpenter , Martin Eiger , Hanan Luss , George Seymour , Paul Seymour
IPC分类号： H04M3/42 , G06F17/60
CPC分类号： H04Q3/0083 , G06Q10/06315 , G06Q30/0202 , G06Q30/0204
摘要： A method for placing equipment in a network begins with a baseline network on which demographic data is analyzed statistically to produce a demographically-driven driven demand forecast model. The demand forecast model yields a predicted demand for each census block group. This can be visualized as one map layer with a GIS. The layout method takes the predicted demands as input and produces new attribute information for network nodes, the central office and cross-connects. By the layout method the cost of placing equipment at available placement sites or nodes is minimized based on various constraints, e.g., the capacity of the equipment to be placed, the distance a user is located from a potential node. Once the minimum cost for a given set of placement sites, subscribers, equipment capacity, and other known constraints is determined the equipment are then placed at these sites. These include the number and type of DSLAMs assigned to each node. These can be visualized with the GIS by clicking-on a node to expose the equipment deployed there.
摘要翻译：将设备放置在网络中的方法是从基线网络开始，统计分析人口统计数据，以产生人口统计驱动的需求预测模型。需求预测模型产生了每个人口普查块组的预测需求。这可以被视为一个具有GIS的地图层。布局方法将预测需求作为输入，为网络节点，中心局和交叉连接产生新的属性信息。通过布局方法，基于各种约束（例如，要放置的设备的容量，用户位于潜在节点的距离），将设备放置在可用放置位置或节点处的成本最小化。一旦给定的一组放置位置，订户，设备容量和其他已知约束的最小成本被确定，则将设备放置在这些位置。这些包括分配给每个节点的DSLAM的数量和类型。这些可以通过点击一个节点来显露部署在那里的设备，用GIS进行可视化。

3. 发明申请

US20050169196A1 Method and system for design and routing in transparent optical networks 有权
标题翻译：透明光网络的设计与布线方法与系统
公开(公告)号：US20050169196A1
公开(公告)日：2005-08-04
申请号：US10768911
申请日：2004-01-30
申请人： Tamra Carpenter , David Shallcross , Joel Gannett , Janet Jackel , Ann Lehmen
发明人： Tamra Carpenter , David Shallcross , Joel Gannett , Janet Jackel , Ann Lehmen
IPC分类号： H04J14/02 , H04L12/28
CPC分类号： H04Q11/0062 , H04J14/0227 , H04J14/0241 , H04J14/0284 , H04Q2011/0073 , H04Q2011/0086
摘要： The present invention relates to a method and system for design and routing in telecommunications networks having transparent elements such as photonic switches. Transparent optical networks transmit signals optically, performing both switching and amplification photonically. As a result, transparent networks may be more economical than conventional “opaque” optical networks that convert signals to electronic form at each network node because they do not require as much equipment for performing optical-electrical conversion. However, transparent networks pose new operational challenges. Physical-layer impairments that are repaired by optical-electrical-optical (OEO) regeneration can accumulate along (transparent) connection paths. To effectively deploy and utilize transparency, mechanisms to assure that impairment-feasible paths exist and can be identified in the network are required. The present invention provides: 1) a method for locating OEO-regeneration capability to assure the existence of impairment-feasible paths in a network and 2) a method for identifying impairment-feasible connection paths in a network of transparent and OEO-capable nodes. The first is a method related to network design, which models the design problem as a variation of a connected dominating set problem. The second is a method related to network routing, which transforms the impairment-aware routing problem into a shortest-path problem in an expanded network. The design methodology of the present invention employs both domination and connectability concepts to enable sparser placement of OEO regeneration capability within networks. Further, the routing methodology of the present invention provides a mechanism for finding feasible routes with respect to impairment constraints while minimizing the use of OEO interfaces to assure such feasibility.
摘要翻译：本发明涉及一种具有透明元件（如光子开关）的电信网络中的设计和布线方法和系统。透明光网络光学传输信号，光子执行切换和放大。因此，透明网络可能比传统的“不透明”光网络更经济，因为它们不需要太多的设备来执行光电转换，因此在每个网络节点将信号转换成电子形式。然而，透明网络构成新的业务挑战。通过光电（OEO）再生修复的物理层损伤可以沿（透明）连接路径累积。为了有效地部署和利用透明度，需要确保网络中存在并可以识别损伤可行路径的机制。本发明提供：1）一种用于定位OEO再生能力以确保在网络中存在损害可行路径的方法，以及2）用于识别透明和具有OEO能力的节点的网络中的可能损害可行连接路径的方法。第一种是与网络设计相关的方法，其将设计问题模型化为连接主导集合问题的变体。第二种是与网络路由相关的方法，其将损害感知路由问题转化为扩展网络中的最短路径问题。本发明的设计方法采用支配和可连接性概念，以便在网络内更轻松地放置OEO再生能力。此外，本发明的路由方法提供了一种机制，用于在减少OEO接口的使用以确保这种可行性的同时，找到关于损害约束的可行路由。

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