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1. 发明申请

US20180213305A1 SYSTEMS AND METHODS FOR INTELLIGENT EDGE TO EDGE OPTICAL SYSTEM AND WAVELENGTH PROVISIONING 审中-公开
公开(公告)号：US20180213305A1
公开(公告)日：2018-07-26
申请号：US15878258
申请日：2018-01-23
申请人： CABLE TELEVISION LABORATORIES, INC
发明人： Luis Alberto CAMPOS , Zhensheng JIA , Carmela STUART
IPC分类号： H04Q11/00 , H04J14/02
CPC分类号： H04Q11/0005 , H04J14/0242 , H04J14/0257 , H04J14/0271 , H04Q2011/0016 , H04Q2011/0041 , H04Q2011/0086
摘要： An optical access network includes an optical hub having at least one processor. The network further includes a plurality of optical distribution centers connected to the optical hub by a plurality of optical fiber segments, respectively, and a plurality of geographic fiber node serving areas. Each fiber node serving area of the plurality of fiber node serving areas includes at least one optical distribution center of the plurality of optical distribution centers. The network further includes a plurality of end points. Each end point of the plurality of end points is in operable communication with at least one optical distribution center. The network further includes a point-to-point network provisioning system configured to (i) evaluate each potential communication path over the plurality of optical fiber segments between a first end point and a second end point, and (ii) select an optimum fiber path based on predetermined path selection criteria.

2. 发明申请

US20180063608A1 DISJOINT PATH COMPUTATION SYSTEMS AND METHODS IN OPTICAL NETWORKS 有权
公开(公告)号：US20180063608A1
公开(公告)日：2018-03-01
申请号：US15297327
申请日：2016-10-19
申请人： Ciena Corporation
发明人： Anurag PRAKASH , Rajagopalan KANNAN , Gaurav BAFNA
IPC分类号： H04Q11/00 , H04L12/733 , H04L12/721 , H04L12/707
CPC分类号： H04Q11/0066 , H04J14/0257 , H04J14/0271 , H04L45/122 , H04L45/124 , H04L45/24 , H04Q2011/0073
摘要： Systems and methods for computing disjoint paths in a network considering continuity constraints include, responsive to a request for disjoint paths in the network which are subject to the continuity constraints, initializing a plurality of variables associated with a graph defining the network where edges constitute nodes and vertices constitute links; determining a first path through the graph; determining an auxiliary directed graph based on the first path; and determining a second path through the auxiliary directed graph, wherein the second path is determined by considering entry into cut edges, exit from cut edges, and a destination in the auxiliary directed graph and the plurality of variables are adjusted based on the entry, the exit, and the destination to address the continuity constraints. This approach concept applies to not just continuity constraints but to any constraints, which are non-additive in nature; the objective function is still additive for Shortest Path First (SPF).

3. 发明授权

US09820021B2 Methods and apparatus for determining a path in a communications network 有权
公开(公告)号：US09820021B2
公开(公告)日：2017-11-14
申请号：US14802240
申请日：2015-07-17
申请人： Ciena Corporation
发明人： Robert Friskney , Fiona Davis , Nigel Baker , Christopher Phillips , Song Dong
IPC分类号： H04B10/25 , H04Q11/00 , H04L12/725 , H04L12/721 , H04L12/727 , H04J14/02
CPC分类号： H04Q11/0066 , H04B10/25 , H04J14/0257 , H04J14/0271 , H04J14/0295 , H04L45/121 , H04L45/124 , H04L45/127 , H04L45/30 , H04L45/308 , H04L45/70 , H04Q2011/0073 , H04Q2011/0086
摘要： A method for determining a path in an optical network, implemented by one or more controllers associated with a control layer, includes receiving a path request specifying start and end points, an associated bandwidth, and a longevity parameter providing an anticipated length during which the path is required; determining a route in the optical network through a routing algorithm executed by the controller, wherein the routing algorithm utilizes the start and end points, the associated bandwidth, and the longevity parameter to determine the path; and provisioning the path through a plurality of switches along the route.

4. 发明授权

US09774931B2 Agile resource on demand service provisioning in software defined optical networks 有权
公开(公告)号：US09774931B2
公开(公告)日：2017-09-26
申请号：US14873555
申请日：2015-10-02
申请人： Futurewei Technologies, Inc. , the Arizona Board of Regents on Behalf of the University of Arizona
发明人： Jiafeng Zhu , Jun He , Likun Lin , Weiyang Mo , Saied Agahi , John Wissinger
IPC分类号： H04B17/00 , H04Q11/00 , H04J14/02 , H04B10/079
CPC分类号： H04Q11/0066 , H04B10/0793 , H04J14/021 , H04J14/0212 , H04J14/0257 , H04J14/0267 , H04J14/0271 , H04L45/62 , H04Q2011/0016 , H04Q2011/0073 , H04Q2011/0083 , H04Q2011/0086
摘要： An embodiment method for managing connections on a communications network having an optical network portion includes receiving a request for a first connection at a controller in signal communication with one or more reconfigurable optical add-drop multiplexers (ROADMs) controlling an optical network portion of a communications network, wherein the controller is connected to the communications network. The controller determines a route on the communications network for the first connection according to conditions of the communications network, with the route comprising one or more first links of the optical network. The controller determines one or more first ROADMs controlling the one or more first links and sends commands from the controller to the one or more first ROADMs to allocate bandwidth on the one or more first links.

5. 发明授权

US09749042B2 Channel validation in optical networks using multi-channel impairment evaluation 有权
公开(公告)号：US09749042B2
公开(公告)日：2017-08-29
申请号：US14337919
申请日：2014-07-22
申请人： Cisco Technology, Inc.
发明人： Rosanna Pastorelli , Stefano Piciaccia , Alberto Tanzi , Eliana Silvia Vercelli
IPC分类号： H04B10/08 , H04B17/00 , H04B10/079 , H04Q11/00 , H04J14/02
CPC分类号： H04B10/0795 , H04B10/0793 , H04J14/0227 , H04J14/0257 , H04J14/0258 , H04J14/0267 , H04J14/0269 , H04J14/0271 , H04Q11/0062 , H04Q2011/0073 , H04Q2011/0086
摘要： In an optical communication network that includes a plurality of interconnected network nodes, a method includes storing in each network node, and for each communication channel that traverses the node, one or more impairment margins of respective impairments that affect the communication channel. A potential communication channel that traverses a subset of the nodes in the network is identified. A quality of the potential communication channel is evaluated by processing the impairment margins stored in the nodes in the subset.

6. 发明授权

US09654247B2 Grooming multicast traffic in flexible optical wavelength division multiplexing WDM networks 有权
公开(公告)号：US09654247B2
公开(公告)日：2017-05-16
申请号：US14613743
申请日：2015-02-04
申请人： NEC Laboratories America, Inc.
发明人： Ankitkumar Patel , Philip Ji
IPC分类号： H04J14/00 , H04J14/02 , H04L12/721 , H04B10/00
CPC分类号： H04J14/0256 , H04B10/00 , H04J14/0212 , H04J14/0224 , H04J14/0257 , H04J14/0258 , H04J14/0271 , H04L45/12 , H04L45/62
摘要： There is provided a distance-adaptive and fragmentation-aware all-optical traffic grooming (DFG) method, which addresses the all-optical traffic grooming problem while considering the transmission reach constraints. The DFG procedure provisions traffic demands in optical channels such that the spectrum requires for guard bands is minimized. The DFG procedure provisions optical channels such that network fragmentation is minimized while ensuring the transmission reach constrains over flexible-grid WDM networks.

7. 发明授权

US09559770B2 WSON restoration 有权
标题翻译： WSON恢复
公开(公告)号：US09559770B2
公开(公告)日：2017-01-31
申请号：US14344973
申请日：2011-10-12
申请人： Giulio Bottari , Diego Caviglia , Daniele Ceccarelli
发明人： Giulio Bottari , Diego Caviglia , Daniele Ceccarelli
IPC分类号： H04B10/032 , H04B10/2575 , H04J14/00 , H04Q11/00 , H04J14/02
CPC分类号： H04B10/032 , H04B10/2575 , H04J14/00 , H04J14/0209 , H04J14/0212 , H04J14/0217 , H04J14/0257 , H04J14/0267 , H04J14/0268 , H04J14/0271 , H04J14/0284 , H04Q11/0005 , H04Q2011/0043
摘要： Dynamic restoration involves routing and bandwidth assignment of an unplanned restoration path in a wavelength switched optical network (20), having regeneration nodes (60), nodes each having a ROADM (62) having drop paths and add paths. An electrical switch (68) provides configurable regeneration capacity by coupling selected drop paths to selected add paths. Some of the configurable regeneration capacity is kept for unplanned restoration paths. A PCE determines (120) routing and bandwidth assignments for an unplanned restoration path for the traffic flow to avoid a fault, and sends (130) configuration messages to the nodes to set up the unplanned restoration path dynamically and to configure the electrical switch to provide regeneration on the path. Keeping some reconfigurable regeneration capacity enables much longer unplanned paths to be found to avoid faults, and enables wavelength conversion if needed. Thus the reliability of finding at least one path avoiding the fault can be increased.
摘要翻译：动态恢复涉及在具有再生节点（60）的波长交换光网络（20）中的非计划恢复路径的路由和带宽分配，每个节点具有具有丢弃路径和添加路径的ROADM（62）。电开关（68）通过将所选择的放置路径耦合到所选择的附加路径来提供可配置的再生能力。一些可配置的再生能力被保留用于非计划的恢复路径。 PCE确定（120）用于业务流的非计划恢复路径的路由和带宽分配以避免故障，并且向节点发送（130）配置消息以动态地建立非计划恢复路径并且配置电开关以提供在路上再生。保持一些可重新配置的再生能力可以实现更长的非计划路径，以避免故障，并在需要时实现波长转换。因此，可以增加找到至少一个避免故障的路径的可靠性。

8. 发明授权

US09509434B2 Margin-based optimization systems and methods in optical networks by intentionally reducing margin 有权
标题翻译：通过有意减少边际的光纤网络中的基于边缘优化的优化系统和方法
公开(公告)号：US09509434B2
公开(公告)日：2016-11-29
申请号：US14536871
申请日：2014-11-10
申请人： Gerard L. Swinkels , David W. Boertjes , David Miedema , Kim B. Roberts
发明人： Gerard L. Swinkels , David W. Boertjes , David Miedema , Kim B. Roberts
IPC分类号： H04J14/02 , H04B10/079 , H04B10/572 , H04B10/58
CPC分类号： H04J14/0227 , H04B10/0795 , H04B10/572 , H04B10/58 , H04J14/0241 , H04J14/0257 , H04J14/0271 , H04L1/0023
摘要： Systems and methods of optimizing capacity of an optical network, through intentionally reducing margin on one or more wavelengths, include identifying a first wavelength capable of using excess capacity; determining the one or more wavelengths that have extra margin; adjusting at least one of the one or more wavelengths to reduce associated margin to a nominal margin so as to increase supportable capacity of the first wavelength; and increasing capacity of the first wavelength based on the supportable capacity.
摘要翻译：通过有意地减少一个或多个波长的裕度来优化光网络容量的系统和方法包括识别能够使用过剩容量的第一波长; 确定具有额外余量的一个或多个波长; 调整所述一个或多个波长中的至少一个以将相关余量减小到额定余量，从而增加所述第一波长的可支持容量; 并且基于可支持容量增加第一波长的容量。

9. 发明授权

US09485553B2 Path computation in wavelength switched optical networks 有权
标题翻译：波长交换光网络中的路径计算
公开(公告)号：US09485553B2
公开(公告)日：2016-11-01
申请号：US14343545
申请日：2011-11-03
申请人： Roberto Magri , Piero Castoldi , Filippo Cugini , Francesco Paolucci , Nicola Sambo
发明人： Roberto Magri , Piero Castoldi , Filippo Cugini , Francesco Paolucci , Nicola Sambo
IPC分类号： H04B10/00 , H04Q11/00 , H04L12/721 , H04J14/02
CPC分类号： H04Q11/0066 , H04J14/0257 , H04J14/0258 , H04J14/026 , H04J14/0269 , H04J14/0271 , H04L45/42 , H04L45/62 , H04Q2011/0073 , H04Q2011/0083
摘要： A path computation client (PCC) can request a path computation element (PCE) to compute a path across a wavelength switched optical network. PCC sends a request which identifies end nodes. The end nodes can support a plurality of possible values of a transmission parameter, such as modulation format or Forward Error Correction (FEC) type. The PCE computes a path between the end nodes and sends a reply to the PCC. The reply identifies the path between the end nodes and identifies a selected value of the transmission parameter for the computed path. The reply can comprise a spectrum assignment for the path. The reply can be a PCE Communication Protocol (PCEP) Reply message.
摘要翻译：路径计算客户机（PCC）可以请求路径计算元件（PCE）来计算穿过波长交换光网络的路径。 PCC发送一个标识终端节点的请求。端节点可以支持传输参数的多个可能值，例如调制格式或前向纠错（FEC）类型。 PCE计算端节点之间的路径，并向PCC发送回复。回复标识了结束节点之间的路径，并标识了所计算的路径的传输参数的选定值。答复可以包括路径的频谱分配。该回复可以是PCE通信协议（PCEP）回复消息。

10. 发明授权

US09438370B2 Margin-based optimization systems and methods in optical networks to unblock superchannels 有权
标题翻译：基于边缘的优化系统和光网络中的方法来解除超通道
公开(公告)号：US09438370B2
公开(公告)日：2016-09-06
申请号：US14537013
申请日：2014-11-10
申请人： Gerard L. Swinkels , David W. Boertjes , David Miedema , Kim B. Roberts
发明人： Gerard L. Swinkels , David W. Boertjes , David Miedema , Kim B. Roberts
IPC分类号： H04J14/02 , H04B10/079 , H04B10/572 , H04B10/58
CPC分类号： H04J14/0227 , H04B10/0795 , H04B10/572 , H04B10/58 , H04J14/0241 , H04J14/0257 , H04J14/0271 , H04L1/0023
摘要： Systems and methods of increasing the supportable capacity from a first point to a second point in an optical network, include identifying a first optical signal that occupies a first portion of optical spectrum from the first point to the second point; identifying a second optical signal that occupies a second portion of the optical spectrum from the first point to the second point, wherein the second portion is adjacent to the first portion; adjusting the second optical signal to minimize part of or remove all of the second portion that is adjacent to the first optical signal to provide a freed up portion of the second portion; and adjusting the first optical signal to occupy some or all of the freed up portion.
摘要翻译：增加从光网络中的第一点到第二点的可支持容量的系统和方法包括：识别从第一点到第二点占据光谱的第一部分的第一光信号; 识别从第一点到第二点占据光谱的第二部分的第二光信号，其中第二部分与第一部分相邻; 调整所述第二光信号以使与所述第一光信号相邻的所述第二部分的所有部分最小化或者去除以提供所述第二部分的释放部分; 以及调整所述第一光信号以占据所述释放部分中的一些或全部。

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