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11. 发明授权

EP2775636B1 Large-capacity fiber optical switching device and optical transmission system 失效
公开(公告)号：EP2775636B1
公开(公告)日：2018-08-01
申请号：EP14000610.7
申请日：2014-02-20
申请人： Hitachi, Ltd.
发明人： Sugawara, Toshiki , Toyoda, Hidehiro , Tanaka, Kenichi
IPC分类号： H04B10/032 , G02B6/02 , H04B10/077 , H04J14/02
CPC分类号： H04B10/038 , G02B6/02042 , G02B6/3528 , H04B10/032 , H04B10/077 , H04J14/0275 , H04J14/029 , H04J14/0291
摘要： A highly reliable optical switching device and optical switching method ensure restoration of the failure in the large-capacity high density wiring of the multicore fiber with the general number of cores (7 cores, 19 cores and the like). An optical transmission system which transmits a supervisory control signal concerning a transmission path switching to one or more cores of a single or multiple multicore fibers, an active signal to one or more cores, and a standby signal to one or more cores includes optical switching devices connected to respective ends of the optical transmission system. Upon detection of the transmission failure of the active signal based on the signal transmission condition and information from the supervisory control signal, it is switched to the standby signal. The supervisory control signal is transmitted to the center core of the multicore fiber.

12. 发明公开

EP3309977A4 OPTICAL NETWORK SYSTEM, OPTICAL LINE TERMINAL, OPTICAL NETWORK UNIT, AND CONTROL METHOD THEREFOR 有权转让
公开(公告)号：EP3309977A4
公开(公告)日：2018-07-18
申请号：EP16810886
申请日：2016-05-23
申请人： ZTE CORP
发明人： WANG XIAOHUA , CHEN YAN , OUYANG HAIMING , ZHANG DANDAN , ZHANG SHUANG , CHEN XIANGRONG , HUANG XINGANG
IPC分类号： H04B10/032 , H04B10/079 , H04J14/02
CPC分类号： H04J14/023 , H04J14/0272 , H04J14/0282 , H04J14/0295
摘要： An optical network unit control method includes: an optical line terminal setting a protection wavelength channel for a target optical network unit, reserving a corresponding network resource for the target optical network unit on the protection wavelength channel; and the optical line terminal sending information about the protection wavelength channel to the target optical network unit after the target optical network unit is online, such that the target optical network unit performs switching on the protection wavelength channel when wavelength channel switching needs to be performed.

13. 发明授权

EP2562945B1 Short-term optical recovery systems and methods for coherent optical receivers 有权转让
标题翻译：用于相干光接收机的短期光学恢复系统和方法
公开(公告)号：EP2562945B1
公开(公告)日：2018-03-28
申请号：EP12181487.5
申请日：2012-08-23
申请人： Ciena Corporation
发明人： Mehrvar, Hamid , Jasarevic, Salih , Thiboutot, Bernard , Doucet, David
IPC分类号： H04B10/032
CPC分类号： H04B10/03 , H04B10/032 , H04B10/6161
摘要： The present disclosure provides short-term optical recovery systems and methods in coherent optical receivers to minimize recovery time for fault scenarios and signal reacquisition while maintaining robust signal acquisition. The short-term optical recovery systems and methods include special techniques and algorithms to minimize recovery time. The short-term optical recovery systems and methods include an expedited acquisition engine (50) that includes a reference clock recovery, a compensator to remove chromatic dispersion, a burst framer, and a compensator to remove polarization dispersion. Importantly, the expedited acquisition engine (50) uses a memory-oriented architecture to allow some properties of the acquisition engine to be stored during initial acquisition and, hence, later on be deployed in any fault scenario to further expedite recovery of a signal. The expedited acquisition engine leverages on a frequency aligned Local Oscillator (LO) as well as pre-calculated dispersion maps and equalizer coefficients.

14. 发明公开

EP3185441A1 VERBESSERUNG DER MULTI LAYER RESILIENZ IN KOMMUNIKATIONSNETZEN 审中-公开
标题翻译：通信网络中多层抗干扰能力的提高
公开(公告)号：EP3185441A1
公开(公告)日：2017-06-28
申请号：EP15202239.8
申请日：2015-12-22
申请人： Deutsche Telekom AG
发明人： WISSEL, Felix
IPC分类号： H04B10/032 , H04J14/02 , H04Q11/00
CPC分类号： H04B10/032 , H04J14/0268 , H04J14/0294 , H04Q2011/0081
摘要： Zur Verbesserung der Multi Layer Resilienz in einem Kommunikationsnetz, in welchem Datenquellen und Datensenken (3 1 - 3 n ) mehrerer Netzwerkstandorte an ein Backbone-Netz aus Netzknoten (1 1 - 1 n ; 8 1 - 8 n ) und Datentransportverbindungen (Kanten 2 1 - 2n; 9 1 - 9 n ) angekoppelt sind, wird vorgeschlagen, das Backbone-Netz in mindestens zwei Netzwerkebenen (A, B) mit zueinander disjunkten Transportinfrastrukturen auszubilden. Innerhalb einer ersten Netzwerkebene (A) wird ein Datenpfad als Arbeitspfad zur Datenübertragung über eine Ende-zu-Ende-Verbindung bereitgestellt. Gleichzeitig wird innerhalb der Transportinfrastruktur einer der anderen Netzwerkebenen (B, ...Z) ein Datenpfad als Ersatzpfad für dieselbe Ende-zu-Ende-Verbindung bereitgestellt. Alle von einer Datenquelle gesendeten Daten werden sowohl in den Arbeitspfad als auch in den Ersatzpfad eingekoppelt, wobei aber am Netzwerkstandort der Datensenke ein durchgängiger Datenübertragungsweg nur über den Arbeitspfad hergestellt wird. Im Falle einer Störung im Arbeitspfad der ersten Netzwerkebene (A) wird der Datenübertragungsweg bei der Datensenke vom Arbeitspfad auf den Ersatzpfad der Netzwerkebene (B, ...Z) verlagert, in der Netzwerkebene (A) ein neuer Arbeitspfad aufgesetzt und danach der Datenübertragungsweg wieder in die Netzwerkebene (A) zurück verlagert.
摘要翻译：为了提高在通信网络中，其中数据源和数据宿（31 - 3N）的多层弹性多个网络位置，以从网络节点（11 - 1N，81 - 8N）骨干网络和数据传输连接（边缘21 - 2N; 91 - 9N）耦合时，在至少两个网络平面（A，B）的骨干网提出了具有互不相交的运输基础设施的设计。内的第一网络平面（A），一个数据路径设置为通过一个端至端连接的数据传输的工作路径。与此同时其他网络等级中的一个（B，... Z）提供了一种数据路径作为用于运输基础设施内的相同端至端连接的备用路径。从数据源发送的所有数据被耦合在两个工作路径和备用路径，而是一个连续的数据传输仅通过工作路径到数据宿的网络位置制成。在在数据中的数据传输的第一网络平面（A）的工作路径发生故障的情况下，从被放置在工作路径到网络层的保护路径（B，... Z）的新的工作路径是在网络层（A）位移，然后将数据传输路径宿再次移回到网络层面（A）。

15. 发明公开

EP2353228A4 METHOD AND SYSTEM FOR PROTECTION SWITCHING IN ETHERNET PASSIVE OPTICAL NETWORKS 有权转让
标题翻译： VERFAHREN UND系统ZUR SCHUTZUMSCHALTUNG在通用的OPTISCHEN以太网 - NETZWERKEN
公开(公告)号：EP2353228A4
公开(公告)日：2017-02-15
申请号：EP09822406
申请日：2009-10-07
申请人： BROADCOM CORP
发明人： GOSWAMI SANJAY , DAVIS LAWRENCE D , BOYD EDWARD W
IPC分类号： H04Q11/00 , H04B10/032 , H04B10/272
CPC分类号： H04Q11/0067 , H04B10/032 , H04B10/272 , H04J2203/006 , H04Q2011/0081
摘要： One embodiment provides a system that performs protection switching in an Ethernet passive optical network (EPON), which includes an optical line terminal (OLT) and at least one optical network unit (ONU). The system is configured with at least one redundant component for the OLT and/or ONUs, wherein the redundant component can be optical or electrical, and can be a port, line card or link. The system provides protection by detecting a failure, and switching automatically to the redundant components to reduce service disruption time. The protection switching comprises: preserving the existing configuration over the loss of at least one of a multiple-point control protocol (MPCP) message; an operations, administration and maintenance (OAM) message; and a signal on the physical layer. The system recovers from the failure without performing ONU discovery.
摘要翻译：一个实施例提供了在包括光线路终端（OLT）和至少一个光网络单元（ONU）的以太网无源光网络（EPON）中执行保护倒换的系统。该系统配置有用于OLT和/或ONU的至少一个冗余组件，其中冗余组件可以是光学或电气的，并且可以是端口，线路卡或链路。该系统通过检测故障提供保护，并自动切换到冗余组件以减少服务中断时间。保护切换包括：通过丢失多点控制协议（MPCP）消息中的至少一个来保留现有配置; 操作，管理和维护（OAM）消息; 和物理层上的信号。系统从故障中恢复，无需执行ONU发现。

16. 发明公开

EP2983309A1 NODE DEVICE 有权
标题翻译： KNOTENVORRICHTUNG
公开(公告)号：EP2983309A1
公开(公告)日：2016-02-10
申请号：EP13882321.6
申请日：2013-04-16
申请人： Huawei Technologies Co., Ltd.
发明人： ZHAO, Han , ZONG, Liangjia , LIU, Ning
IPC分类号： H04B10/032 , H04J14/02 , G02B6/293
CPC分类号： H04J14/0297 , H04B10/032 , H04J14/0212 , H04J14/0221 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0015 , H04Q2011/0016 , H04Q2011/0081
摘要： The present invention provides a node apparatus, where two N x N wavelength selective switches are used to form a parallel-connected structure, and two ends of each power splitter are separately connected to input ends of the N x N wavelength selective switches, and two ends of each power combiner are separately connected to output ends of the N x N wavelength selective switches, thereby transferring route switching selection work originally performed between multiple 1 x M wavelength selective switches to the inside of the N x N wavelength selective switch for implementation. Compared with an original structure using discrete components, the node apparatus is simplified, and when a traffic volume expands, the number of module slots on a line side does not need to be increased, thereby reducing usage costs eventually. The present invention is used for signal transmission in a node.
摘要翻译：本发明提供了一种节点装置，其中使用两个N×N个波长选择开关来形成并联结构，并且每个功率分配器的两端分别连接到N×N个波长选择开关的输入端，并且两个每个功率合成器的端部分别连接到N×N个波长选择开关的输出端，从而将最初在多个1×M波长选择开关之间执行的路由切换选择工作传送到N×N波长选择开关的内部，以实现。与使用离散组件的原始结构相比，节点设备简化，当流量扩大时，线路侧的模块插槽数量不需要增加，从而最终降低使用成本。本发明用于节点中的信号传输。

17. 发明公开

EP2981009A1 Method to operate a network unit and network unit 审中-公开
标题翻译： Verfahren zum Betreiben einer Netzwerkeinheit und Netzwerkeinheit
公开(公告)号：EP2981009A1
公开(公告)日：2016-02-03
申请号：EP14290222.0
申请日：2014-07-31
申请人： ALCATEL LUCENT
发明人： Hessler, Peter
IPC分类号： H04J3/14 , H04J3/16 , H04B10/032 , H04Q11/00
CPC分类号： H04J3/14 , H04B10/032 , H04J3/1652 , H04J2203/006 , H04Q11/0067
摘要： It is proposed a method to operate a network unit. APS, automatic protection switching channel comprising APS values for the network node as received. In a first step. (2) a previously accepted APS value of the APS channel is maintained in dependence on an active hold signal. In a second step (4) a new APS value is accepted replacing the previously accepted APS value in dependence on the determination of a persistency of a received APS value.
摘要翻译：提出了一种操作网络单元的方法。 APS，包括接收到的网络节点的APS值的自动保护切换信道。在第一步。（2）依赖于有效保持信号来维持先前接受的APS信道的APS值。在第二步（4）中，接受新的APS值，取决于接收到的APS值的持久性的确定来代替先前接受的APS值。

18. 发明公开

EP2916486A4 SERVICE PROTECTION METHOD, OPTICAL LINE TERMINAL AND SYSTEM IN PASSIVE OPTICAL NETWORK 审中-公开
标题翻译： EINEM PASSIVEN OPTISCHEN NETZWERK的DIENSTSCHUTZVERFAHREN，OPTISCHESLEITUNGSENDGERÄTUND系统
公开(公告)号：EP2916486A4
公开(公告)日：2015-12-16
申请号：EP12890377
申请日：2012-12-20
申请人： HUAWEI TECH CO LTD
发明人： PU YUN
IPC分类号： H04L12/24 , H04B10/032 , H04B10/27 , H04L12/437 , H04L12/46 , H04L12/703 , H04L12/707 , H04Q11/00
CPC分类号： H04B10/032 , H04B10/27 , H04L12/437 , H04L12/4641 , H04L41/0663 , H04L45/22 , H04L45/28 , H04Q11/0067 , H04Q2011/0081

19. 发明公开

EP2827506A4 METHOD FOR CHANGING OVERHEAD AND PREVENTING SUBNETS FROM SWITCHING SIMULTANEOUSLY, DEVICE, NETWORK ELEMENT, AND NETWORK 有权
标题翻译：变革的营运成本方法，以防止同步开关选自网络，设备，网络网元和网络
公开(公告)号：EP2827506A4
公开(公告)日：2015-04-22
申请号：EP13760440
申请日：2013-03-13
申请人： ZTE CORP
发明人： YUAN YAN , FU SEN , SONG XIAOPENG
IPC分类号： H04B1/74 , H04B10/032 , H04J3/08 , H04J3/14
CPC分类号： H04B1/74 , H04J3/14 , H04J3/1652 , H04J3/1664
摘要： A method and an apparatus for changing an overhead and preventing subnets from switching simultaneously, a network element, and a network are disclosed. The method for changing an overhead includes: detecting that a fault occurs, and the fault triggering an embedded optical transport subnet and an outer subnet thereof to perform protection switching; changing a value of an overhead which will trigger protection switching of the outer subnet in a signal to be transmitted to a downstream network element to a value which will not trigger protection switching of the outer subnet; and cancelling the change after the change lasts for a period of time, wherein the period of time is less than or equal to a set change lasting time. A network element of an embedded subnet in multiple nested subnets performs said method for changing an overhead, and meanwhile sets a protection switching delay trigger time of a network element performing protection switching in the outer subnet to be less than a longest service transient interruption time possibly caused during the protection switching of the embedded subnet, so as to prevent subnets from switching simultaneously and reduce the protection switching delay caused by a fault outside the embedded subnet and in the outer subnet. The present application further provides a corresponding apparatus, network element, and network.

20. 发明授权

EP2518912B1 Optical line termination node and passive optical network 有权转让
标题翻译：光线路终端节点和无源光网络
公开(公告)号：EP2518912B1
公开(公告)日：2014-12-24
申请号：EP11164359.9
申请日：2011-04-29
申请人： ADVA Optical Networking SE
发明人： Grobe, Klaus
IPC分类号： H04B10/032 , H04J14/02
CPC分类号： H04B10/032 , H04B10/2587 , H04J14/0234 , H04J14/0236 , H04J14/0282 , H04J14/0291 , H04J14/0294 , H04J14/0297

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