公开(公告)号：US10419110B2

公开(公告)日：2019-09-17

申请号：US15822783

申请日：2017-11-27

申请人： ECI TELECOM LTD.

发明人： David Jimmy Dahan ,  David Jacobian

IPC分类号： H04B10/079 ,  H04L5/04 ,  H04B10/077 ,  H04B10/07 ,  H04L27/36 ,  H04B10/61 ,  H04B10/66

摘要： A method and a device are provided for monitoring OSNR system margin in optical networks which relies on the relationship that exists between the OSNR value and the ESNR value.

公开(公告)号：US09537711B2

公开(公告)日：2017-01-03

申请号：US13747878

申请日：2013-01-23

申请人： ECI Telecom Ltd.

发明人： Shell Nakash

IPC分类号： H04L12/24

CPC分类号： H04L41/0668 ,  H04L41/0663

摘要： A method and system are provided for connecting at least three provider peer elements PEs located in two L2 network sites, via a provider network, wherein at least in one of the L2 sites and two of the provider peer elements PEs are connected to a customer equipment CE forming together a dual homing structure. The method and system are characterized in that they rely on the use of only a single PW in the provider network that extends between PEs of the two L2 network sites while ensuring traffic protection for the PW in the provider network, and ensuring that in case of a failure of one of the PEs or its connection to the customer equipment at one of the sites, the other L2 network site remains unaware of the failure, so that once established, traffic communication over the PW is maintained like no failure has happened.

摘要翻译： 提供了一种方法和系统，用于经由提供商网络连接位于两个L2网络站点中的至少三个提供商对等体元素PE，其中至少一个L2站点和两个提供商对等体元素PE连接到客户设备 CE组合双重归位结构。 该方法和系统的特征在于，它们依赖于在提供商网络中仅使用在两个L2网络站点的PE之间延伸的单个PW，同时确保提供商网络中的PW的流量保护，并且确保在 一个PE的故障或者其中一个站点上的客户设备的故障，另一个L2网络站点仍然不知道该故障，一旦建立，PW上的流量通信就会保持不变，没有发生故障。

公开(公告)号：US08934592B2

公开(公告)日：2015-01-13

申请号：US13749296

申请日：2013-01-24

申请人： ECI Telecom Ltd.

发明人： Ronen Shemesh

IPC分类号： H04L7/00 ,  H04L25/14

CPC分类号： H04L7/0041 ,  H04L25/14

摘要： A method is provided for synchronizing binary data transmitted in parallel via N channels. The method comprises performing at the receiver side, a data-clock-alignment for the data in the N channels by selecting an optimal reference channel to which no delay will be added, and adding an appropriate delay to each of the remaining channels, until their respective centers of valid data portions are aligned to each other, and associating clock edges with the centers of the valid data portions. The method is characterized in that the alignment is performed regardless to whether binary word alignment is simultaneously achieved or not, and wherein the optimal reference channel allows aligning the centers of valid data of all the channels while adding a minimal delay to a worst channel from among the remaining channels, wherein the worst channel carries valid data portions which are maximally shifted from those of the reference channel.

摘要翻译： 提供了一种通过N个信道同步并行发送的二进制数据的方法。 该方法包括：通过选择不添加延迟的最佳参考信道，在接收机侧对N个信道中的数据进行数据时钟对准，并向每个剩余信道添加适当的延迟，直到它们 相应的有效数据部分的中心彼此对准，并且将时钟边缘与有效数据部分的中心相关联。 该方法的特征在于，无论是否同时实现二进制字对准，执行对准，并且其中最佳参考通道允许对齐所有通道的有效数据的中心，同时从最差信道中增加最小延迟 其余信道，其中最差信道携带与参考信道的那些信道最大偏移的有效数据部分。

公开(公告)号：US08543013B2

公开(公告)日：2013-09-24

申请号：US12988069

申请日：2009-04-05

申请人： Uri Mahlab ,  Michael Gutin

发明人： Uri Mahlab ,  Michael Gutin

IPC分类号： H04B10/06

CPC分类号： H04B10/671

摘要： Technology for detecting an optical data signal carried in a combined optical signal that comprises a carrier optical signal modulated by the optical data signal and also comprises ASE noise. The proposed optical data detector/receiver is provided with an SHG device adapted to generate a second harmonic optical signal of the carrier optical signal modulated by the data signal. In the signal, generated by the SHG, the ASE noise will be essentially reduced.

摘要翻译： 用于检测包含由光数据信号调制的载波光信号的组合光信号中携带的光数据信号的技术，还包括ASE噪声。 所提出的光学数据检测器/接收器设置有适于产生由数据信号调制的载波光信号的二次谐波光信号的SHG器件。 在由SHG生成的信号中，ASE噪声将基本上减少。

公开(公告)号：US20130188676A1

公开(公告)日：2013-07-25

申请号：US13749296

申请日：2013-01-24

申请人： ECI TELECOM LTD.

发明人： Ronen SHEMESH

IPC分类号： H04L7/00

CPC分类号： H04L7/0041 ,  H04L25/14

摘要： A method is provided for synchronizing binary data transmitted in parallel via N channels. The method comprises performing at the receiver side, a data-clock-alignment for the data in the N channels by selecting an optimal reference channel to which no delay will be added, and adding an appropriate delay to each of the remaining channels, until their respective centers of valid data portions are aligned to each other, and associating clock edges with the centers of the valid data portions. The method is characterized in that the alignment is performed regardless to whether binary word alignment is simultaneously achieved or not, and wherein the optimal reference channel allows aligning the centers of valid data of all the channels while adding a minimal delay to a worst channel from among the remaining channels, wherein the worst channel carries valid data portions which are maximally shifted from those of the reference channel.

摘要翻译： 提供了一种通过N个信道同步并行发送的二进制数据的方法。 该方法包括：通过选择不添加延迟的最佳参考信道，在接收机侧对N个信道中的数据进行数据时钟对准，并向每个剩余信道添加适当的延迟，直到它们 相应的有效数据部分的中心彼此对准，并且将时钟边缘与有效数据部分的中心相关联。 该方法的特征在于，无论是否同时实现二进制字对准，执行对准，并且其中最佳参考通道允许对齐所有通道的有效数据的中心，同时从最差信道中增加最小延迟 其余信道，其中最差信道携带与参考信道的那些信道最大偏移的有效数据部分。

公开(公告)号：US08457488B2

公开(公告)日：2013-06-04

申请号：US12866868

申请日：2009-01-21

申请人： Ariel Almog

发明人： Ariel Almog

IPC分类号： G02F1/00

CPC分类号： H04Q11/0067 ,  H04B10/032 ,  H04J14/0283 ,  H04J14/0295 ,  H04J14/0297 ,  H04Q2011/0015 ,  H04Q2011/0081

摘要： A system for serving N optical communication lines by a redundant set of modules in an optical network; where the set of modules comprises N>1 main modules and one backup module, N optical splitters, 2N fiber connections and a control means. In the system, each of the N optical splitters is connected to two different modules of the set by two respective fiber connections out of the 2N connections, while each of the N optical splitters is also coupled to one of the N optical communication lines. The arrangement is such that the control means selectively activates/inactivates any of the fiber connections for respectively enabling/blocking transfer of data there-along; the control means thus ensures that each specific line of the N optical communication lines is always served by either one or another of two different modules.

摘要翻译： 一种用于通过光网络中的冗余模块组来服务N个光通信线路的系统; 其中该组模块包括N> 1个主模块和一个备用模块，N个分光器，2N个光纤连接和控制装置。 在该系统中，N个分光器中的每一个通过2N个连接中的两个相应光纤连接连接到该组的两个不同模块，而N个分光器中的每一个也耦合到N个光通信线路之一。 这种布置使得控制装置选择性地启动/停用光纤连接中的任何一个，以便分别使能/阻止数据的传送; 因此，控制装置确保N个光通信线路的每个特定线路总是由两个不同模块中的一个或另一个模块提供。

公开(公告)号：US08452003B2

公开(公告)日：2013-05-28

申请号：US12997097

申请日：2009-06-11

申请人： Shalom Bukimer

发明人： Shalom Bukimer

IPC分类号： H04M1/00 ,  H04M9/00

CPC分类号： H04M19/001 ,  H04M3/2245 ,  H04M3/247

摘要： Technique is proposed for managing total power consumption in an access network comprising two or more interface modules serving a plurality of subscriber lines, the technique comprises performing a study of real power consumption of the subscriber lines in the access network on a line-to-line basis, correlating results of the study with inventory information concerning allocation of the subscriber lines to the interface modules and power consumption ensured by said modules to the lines and, based on the correlation, assessing optimality of allocation of the subscriber lines to the interface modules.

摘要翻译： 提出了用于管理包括服务于多个用户线路的两个或多个接口模块的接入网络中的总功耗的技术，该技术包括在线路上对接入网络中的用户线路的实际功耗进行研究 基础，将研究结果与关于用户线路分配到接口模块的库存信息和由所述模块确保的线路的功率消耗相关联，并且基于相关性评估用户线路到接口模块的分配的最佳性。

公开(公告)号：US20130094355A1

公开(公告)日：2013-04-18

申请号：US13649210

申请日：2012-10-11

申请人： Shell NAKASH

发明人： Shell NAKASH

IPC分类号： H04L12/56 ,  H04L12/437

CPC分类号： H04L45/28 ,  H04L12/437 ,  H04L45/502

摘要： A method is described to enable carrying out a fast reroute protection technique which provides both link and node protection without traffic duplication, without the need to distinguish between link and node failures, and without replicating traffic. The technique covers concurrent Working and backup logical path failures, and in particular LSP logical paths. The method is adapted to provide a “Dual Failure Protection” (DFP), and is expandable to various multi-failure scenarios.

摘要翻译： 描述了一种方法，以便能够执行快速重路由保护技术，其提供链路和节点保护，而不需要流量复制，而不需要区分链路和节点故障，并且不需要复制业务。 该技术涵盖并发工作和备份逻辑路径故障，特别是LSP逻辑路径。 该方法适用于提供“双重故障保护”（DFP），并可扩展到各种多故障场景。

公开(公告)号：US20130058257A1

公开(公告)日：2013-03-07

申请号：US13605147

申请日：2012-09-06

申请人： Vadim DUKHOVNY

发明人： Vadim DUKHOVNY

IPC分类号： H04L12/28

CPC分类号： H04L41/0803 ,  H04L45/48 ,  H04L45/50

摘要： A method and device for managing E-tree services in an MPLS network having domains comprising network nodes and links, wherein the network is adapted to accommodate an E-tree structure formed by the network nodes for a specific E-tree service. The E-tree structure comprises a root point communicating with a number of leaf points, so that any network node of the E-tree structure is connected via its ports to links leading to a root point and/or a leaf point of said structure. The method comprises: marking ports of a specific node associated with links leading only to leaf points of the structure while marking differently ports of a specific node, associated with links leading to the root point; marking ports of a specific node connected to incoming or outgoing links of the same domain, and ensuring that traffic will not be returned thereby creating network loops.

摘要翻译： 一种用于在具有包括网络节点和链路的域的MPLS网络中管理E-tree服务的方法和设备，其中所述网络适于容纳由所述网络节点为特定E树服务形成的E树结构。 E树结构包括与多个叶点通信的根点，使得E树结构的任何网络节点经由其端口连接到通向所述结构的根点和/或叶点的链路。 该方法包括：标记与仅导致结构的叶点的链接相关联的特定节点的端口，同时标记与导致根点的链接相关联的特定节点的不同端口; 标记连接到同一域的入站或出站链路的特定节点的端口，并确保不会返回流量，从而创建网络环路。

公开(公告)号：US20130045006A1

公开(公告)日：2013-02-21

申请号：US13564470

申请日：2012-08-01

申请人： David Jimmy DAHAN ,  Uri Mahlab

发明人： David Jimmy DAHAN ,  Uri Mahlab

IPC分类号： H04B10/08

CPC分类号： H04J14/0257 ,  H04J14/0204 ,  H04J14/0208 ,  H04J14/0212 ,  H04J14/0224 ,  H04J14/0267 ,  H04J14/0282

摘要： A method and system are provided for improving bandwidth efficiency in an optical network by dynamically utilizing unused bandwidth located around preliminarily allocated optical channels. The method comprising monitoring actual bandwidth of the preliminarily allocated optical channels incoming to a node of the optical network, reporting the monitoring results to the controller of that node and further to a network controller, receiving at that node recommendations generated by the network controller, adjusting bandwidth of one or more of the allocated optical channels thereby releasing spare bandwidth for inserting one or more additional optical channels thereat.

摘要翻译： 提供了一种通过动态地利用位于预先分配的光信道周围的未使用带宽来提高光网络带宽效率的方法和系统。 该方法包括：监视预先分配的光信道到光网络节点的实际带宽，将监测结果报告给该节点的控制器，并进一步向网络控制器报告，在该节点处接收网络控制器产生的建议，调整 一个或多个所分配的光信道的带宽，从而释放用于在其上插入一个或多个附加光信道的备用带宽。