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公开(公告)号：US20120054710A1
公开(公告)日：2012-03-01
申请号：US13152486
申请日：2011-06-03
IPC分类号： G06F17/50
CPC分类号： H04J14/0257 , G06F17/509 , H04J14/0206 , H04J14/0212 , H04J14/0227 , H04J14/0267 , H04J14/0269 , H04J14/0284
摘要： An optical network design apparatus includes a memory and a processor. The memory stores a connection limit corresponding to the number of connections between ports. The processor provisionally designs a traffic path across an optical network independently of a connection limit of an asymmetric optical hub, calculates a penalty allowance with respect to the penalty limit of the traffic path, calculates an additional penalty caused on a detour path derived by replacing a port with a replacement port in the asymmetric optical hub, and if an asymmetric optical hub is included in the detour path, generates asymmetric optical hub information about the included asymmetric optical hub, generates, based on the connection limit, penalty allowance, additional penalty, and asymmetric optical hub information, a constraint condition for adopting the traffic path satisfying the connection limit and penalty limit, and calculates the traffic path by mathematical programming under the constraint condition.
摘要翻译： 光网络设计装置包括存储器和处理器。 存储器存储与端口之间的连接数量相对应的连接限制。 处理器临时设计跨越光网络的业务路径，独立于非对称光学集线器的连接极限，计算相对于业务路径的惩罚极限的惩罚补贴，计算通过替换导致的绕行路径引起的附加罚分 在非对称光学集线器中具有替换端口的端口，并且如果在迂回路径中包括非对称光学集线器，则生成关于所包括的非对称光学集线器的不对称光学集线器信息，基于连接限制生成惩罚补贴，附加惩罚， 和非对称光中心信息，采用满足连接限制和罚款限制的业务路径的约束条件，并在约束条件下通过数学规划计算交通路径。
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公开(公告)号：US20120079116A1
公开(公告)日：2012-03-29
申请号：US13218853
申请日：2011-08-26
IPC分类号： G06F15/16
CPC分类号： H04L45/12
摘要： There is provided an apparatus and method for allocating devices to a communication route. Network topology information and device information including a device-cost assigned to each of candidate-devices allowed to be allocated to a plurality of segments on the communication route are provided. An integer/linear programming problem is generated to obtain a feasible device-allocation, and an objective function for calculating an objective function value is defined. A sequence of feasible device-allocations are generated by sequentially generating a next feasible device-allocation from a current feasible device-allocation while improving an objective function value until the objective function value is not improved any more, and the last one of the sequence of feasible device-allocations is determined to be an optimum device-allocation. The next feasible device-allocation is generated from the current feasible device-allocation by replacing a basic candidate-device with an alternative candidate-device selected based on reduced-costs calculated for nonbasic candidate-devices.
摘要翻译： 提供了一种用于将设备分配到通信路由的装置和方法。 提供了网络拓扑信息和设备信息，包括分配给允许分配给通信路由上的多个段的每个候选设备的设备成本。 产生整数/线性规划问题以获得可行的设备分配，并且定义用于计算目标函数值的目标函数。 通过从当前的可行设备分配顺序地生成下一个可行的设备分配，同时改善目标函数值直到目标函数值不再被改善，并且最后的一个序列 可行设备分配被确定为最佳设备分配。 通过使用基于为非基本候选设备计算的降低成本而选择的替代候选设备替换基本候选设备，从当前可行的设备分配生成下一个可行设备分配。
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3.发明申请公开(公告)号：US20130054834A1
公开(公告)日：2013-02-28
申请号：US13490853
申请日：2012-06-07
IPC分类号： G06F15/173
CPC分类号： H04L12/6418 , H04L45/02 , H04L45/12
摘要： The first route searching unit searches among multiple routes from a start node toward a goal node for a first route by using topology information. The topology information changing unit changes the topology information by excluding the first route from the multiple routes and setting, to configuration links constituting the first route, additional links whose direction is opposite to that of the configuration links. The port information changing unit changes port information such that communication in a direction from the goal node toward the start node is permitted in the configuration links and the additional links. The second route searching unit searches for a second route by using the changed topology information and the changed port information. The redundant route searching unit searches for a pair of redundant routes by eliminating the configuration links that overlap on the first route and the second route.
摘要翻译： 第一路由搜索单元通过使用拓扑信息从起始节点到用于第一路由的目标节点的多个路由中进行搜索。 拓扑信息改变单元通过从多个路由排除第一路由来改变拓扑信息，并将构成第一路由的配置链路设置为与配置链路的方向相反的附加链路。 端口信息改变单元改变端口信息，使得在配置链路和附加链路中允许从目标节点向起始节点的方向的通信。 第二路由搜索单元通过使用改变的拓扑信息和改变的端口信息来搜索第二路由。 冗余路由搜索单元通过消除在第一路由和第二路由上重叠的配置链路来搜索一对冗余路由。
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公开(公告)号：US20100166421A1
公开(公告)日：2010-07-01
申请号：US12618913
申请日：2009-11-16
IPC分类号： H04B10/08
CPC分类号： H04B10/0793 , H04J14/0221 , H04J14/0257 , H04J14/0271 , H04J14/0278 , H04L41/145 , H04L43/0829 , H04L43/0847 , H04L43/16 , H04Q11/0062 , H04Q2011/0073 , H04Q2011/0086
摘要： In a network design apparatus, a full channel evaluator determines whether all wavelength channels for main signals can deliver the main signals of an existing optical network. When it is found that one or more wavelength channels cannot deliver main signals, a chromatic dispersion evaluator determines whether there are a specified number of wavelength channels that satisfy a specified chromatic dispersion condition. An optical signal-to-noise ratio (SNR) evaluator extracts a specified number of wavelength channels out of those satisfying the chromatic dispersion condition in descending order of optical SNRs thereof, and determines whether the extracted wavelength channels satisfy a specified optical SNR condition.
摘要翻译： 在网络设计装置中，全信道评估器确定主信号的所有波长信道是否可以传送现有光网络的主信号。 当发现一个或多个波长信道不能传送主信号时，色散估计器确定是否存在满足特定色散条件的指定数量的波长信道。 光信噪比（SNR）评估器以其光学SNR的降序从满足色散条件的那些提取指定数量的波长信道，并且确定提取的波长信道是否满足指定的光学SNR条件。
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5.发明申请DISPERSION COMPENSATION DESIGN METHOD AND DISPERSION COMPENSATION DESIGN SYSTEM 有权分散补偿设计方法和分散补偿设计系统公开(公告)号：US20120237214A1
公开(公告)日：2012-09-20
申请号：US13363917
申请日：2012-02-01
IPC分类号： H04B10/08
CPC分类号： H04B10/275 , H04B10/25253 , H04J14/02
摘要： A dispersion compensation design system includes a segment dividing unit to divide an optical network into segments of a linear network or a ring network, a path classifying unit to classify one of paths of the optical network, as a specific type path, the one of the paths being incapable of transmitting an optical signal and contained in a longer path having a route longer than that of the one of the paths and capable of transmitting the optical signal, a segment reconfiguration unit to reconfigure the segments so as to maximize a number of the specific type paths, a dispersion compensation amount computing unit to compute a dispersion compensation amount in any of spans of the optical network so as to minimize the number of the specific type paths within the reconfigured segment, and an update unit to update the dispersion compensation amount with the computed dispersion compensation amount.
摘要翻译： 色散补偿设计系统包括一个分段单元，用于将光网络划分为线性网络或环网的分段，路径分类单元将光网络中的一条路径分类为特定类型路径， 路径不能发送光信号并且包含在具有比该一个路径的路径长的路径的较长路径中并且能够发送光信号的段重配置单元，以重新配置段，以便最大化 特定类型路径，色散补偿量计算单元，用于计算光网络中的任一跨度的色散补偿量，以便最小化重配置段内的特定类型路径的数量;以及更新单元，用于更新色散补偿量 与计算的色散补偿量。
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公开(公告)号：US20110052193A1
公开(公告)日：2011-03-03
申请号：US12858222
申请日：2010-08-17
CPC分类号： H04Q11/0062 , H04J14/0227 , H04J14/0271 , H04J14/0283 , H04J14/0284 , H04L41/145 , H04Q2011/0086
摘要： A network design apparatus includes an input unit configured to receive network information that indicates nodes connected by optical transmission paths and path information that indicates paths between the nodes; an design unit configured to perform, based on the network information and the path information, wavelength dispersion compensation design using a constraint condition that a path whose span count is larger than a span count of another path that does not satisfy a transmission condition does not satisfy the transmission condition; and an output unit configured to output a result obtained by the design unit.
摘要翻译： 网络设计装置包括：输入单元，被配置为接收指示通过光传输路径连接的节点的网络信息和指示节点之间的路径的路径信息; 设计单元，其被配置为基于网络信息和路径信息，使用跨度计数大于不满足传输条件的另一路径的跨度计数的路径不满足的约束条件来执行波长色散补偿设计 传输条件; 以及输出单元，被配置为输出由所述设计单元获得的结果。
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7.发明申请APPARATUS AND METHOD FOR FINDING A PAIR OF DISJOINT PATHS IN A COMMUNICATION NETWORK 有权用于在通信网络中找到一对分组码的装置和方法公开(公告)号：US20110038254A1
公开(公告)日：2011-02-17
申请号：US12853336
申请日：2010-08-10
IPC分类号： H04J3/14
CPC分类号： H04Q11/0062 , H04J14/0267 , H04J14/0268 , H04L45/1283 , H04L45/1287 , H04L45/22 , H04Q2011/0073
摘要： There is provided topology information including connection states among nodes in a network, and port information including restriction conditions on connectivity among ports within a restricted node. A path search apparatus finds a first path having the minimum total link-cost among a plurality of paths. The topology information is changed so that the first path is not searched for as a path having the minimum total link-cost among the plurality of paths, and the port information is changed based on a port connectivity change rule. Then, the path search apparatus finds a second path different from the first path, based on the changed port information and the changed topology information, and reconfigures a pair of link-disjoint paths satisfying the restriction conditions imposed on the restricted node, by removing a link shared by both the first and second paths from the original topology information.
摘要翻译： 提供了包括网络中的节点之间的连接状态的拓扑信息，以及包括受限节点内的端口之间的连接性的限制条件的端口信息。 路径搜索装置在多个路径中找到具有最小总链路成本的第一路径。 改变拓扑信息，使得第一路径不被搜索为多个路径中具有最小总链路成本的路径，并且基于端口连接性改变规则改变端口信息。 然后，路径搜索装置基于改变的端口信息和改变的拓扑信息，找到与第一路径不同的第二路径，并且通过去除一个对应于限制节点的限制条件来重新配置满足限制条件的一对链路不相交路径 链路由原始拓扑信息由第一和第二路径共享。
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公开(公告)号：US20110019554A1
公开(公告)日：2011-01-27
申请号：US12834509
申请日：2010-07-12
IPC分类号： H04L12/26
CPC分类号： H04Q11/0062 , H04L41/145 , H04Q2011/0086
摘要： A network design device includes a bypass number setting unit setting the number of bypass node; a loss calculating unit calculating a reference loss; a graph generating unit generating a graph having a variation value obtained based on a difference between a transmission loss of a link coupling nodes to each other and the reference loss; a path detecting unit detecting a minimum-variation-path in which sum of each variation value from a start point to an end point of the graph is minimum; and a comparing unit comparing a calculation OSNR and a reference OSNR, the calculation OSNR being obtained by a calculation from a start point to an end point assuming that an optical amplifier is located on a node other than a bypass node on the minimum-variation-path, wherein the bypass number setting unit changes the number of bypass node based on a result of the comparing unit.
摘要翻译： 网络设计装置包括设置旁路节点数的旁路号码设定部， 损失计算单元，计算参考损耗; 产生具有基于链路耦合节点的传输损耗彼此之间的差异以及基准损耗而获得的变化值的图形的图形生成单元; 路径检测单元，其检测其中从图形的开始点到终点的每个变化值的和最小的最小变化路径; 以及比较单元，比较计算OSNR和参考OSNR，所述计算OSNR是通过从起始点到终点的计算获得的，假设光放大器位于除最小变化量之外的旁路节点上的节点上， 路径，其中旁路号码设定单元基于比较单元的结果来改变旁路节点的数量。
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公开(公告)号：US20070264018A1
公开(公告)日：2007-11-15
申请号：US11463126
申请日：2006-08-08
IPC分类号： H04J14/00
CPC分类号： H04J14/0227 , H04J3/08 , H04J3/1611 , H04J14/0241 , H04J14/0283 , H04J2203/0067 , H04J2203/0085 , H04J2203/0094 , H04L41/145 , H04Q2011/0086
摘要： In the case that a client signal having a bandwidth larger than BW divided by P exists, where the P is the number of client ports of one optical transponder card and the BW is an optical signal band, it is configured to accommodate client signals in one optical transponder card by combining plural client signals of which the total band is no greater than the BW and which have different bands so as to make it a maximum within the aforementioned range.
摘要翻译： 在具有大于BW除以P的带宽的客户端信号存在的情况下，P是一个光转发器卡的客户端端口的数量，并且BW是光信号频带，其被配置为将客户端信号容纳在一个 通过组合多个客户信号，其中总频带不大于BW，并具有不同频带，以使其在上述范围内最大。
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