公开(公告)号：EP2002573B1

公开(公告)日：2017-06-21

申请号：EP07759455.4

申请日：2007-03-27

Applicant: Cisco Technology, Inc.

Inventor： GERSTAL, Ornan ,  MACCHI, Mauro ,  PICIACCIA, Stefano

IPC: H04B10/2581 ,  H04J14/02 ,  H04B10/27 ,  H04B10/25 ,  H04Q11/00

CPC classification number: H04Q11/0005 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0216 ,  H04J14/0217 ,  H04J14/0219 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0286 ,  H04J14/0294 ,  H04J14/0295 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0052 ,  H04Q2011/0081 ,  H04Q2011/0092

公开(公告)号：EP3146657A4

公开(公告)日：2017-06-14

申请号：EP15798782

申请日：2015-05-25

Applicant: HUAWEI TECH CO LTD

Inventor： MEHRVAR HAMID

IPC: H04J14/02 ,  H04L12/947 ,  H04Q11/00

CPC classification number: H04Q11/0005 ,  H04J14/0212 ,  H04L49/25 ,  H04Q11/0003 ,  H04Q2011/0039 ,  H04Q2011/0049 ,  H04Q2011/005 ,  H04Q2011/0054 ,  H04Q2011/0058

Abstract: Hybrid dilated Benes photonic switching architectures employ an arrangement of two-by-one (2×1) photonic and two-by-two (2×2) photonic elements to enjoy improved cross-talk performance while maintaining moderate cell counts. A jumpsuit switch optical network node architecture comprising multiple stages may operate more efficiently than single stage switching fabrics, by enabling manipulation of connectivity in some stages to achieve load balancing over other stages. Specifically, a first stage of switching fabrics connected to input ports of the optical node may be manipulated to load balance incoming signals over a second stage of switching fabrics coupled to output ports of the optical node. Additionally, a third stage of switching fabrics connected to add ports of the optical node may be manipulated to load balance added optical signals over the second stage of switching fabrics.

Abstract translation: 混合膨胀Benes光子开关架构采用2×1光子和2×2光子元件的布置，以在保持中等细胞计数的同时享受改善的串扰性能。 包括多个级的连接器交换机光网络节点体系结构可以比单级交换结构更有效地操作，其通过实现某些阶段中的连接性的操纵以实现其他阶段的负载平衡。 具体地，可以操纵连接到光节点的输入端口的交换结构的第一阶段，以在耦合到光节点的输出端口的交换结构的第二阶段上对输入信号进行负载平衡。 另外，可以操纵连接到光节点的添加端口的交换结构的第三阶段以在交换结构的第二阶段上对所添加的光信号进行负载平衡。

公开(公告)号：EP3042463B1

公开(公告)日：2017-05-31

申请号：EP13759708.4

申请日：2013-09-04

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： TESTA, Francesco ,  BOTTARI, Giulio

IPC: H04J14/02 ,  H04Q11/00

CPC classification number: H04J14/0212 ,  H04J14/0204 ,  H04J14/0217 ,  H04J14/0219 ,  H04Q11/0005 ,  H04Q11/0071 ,  H04Q2011/0009 ,  H04Q2011/0015 ,  H04Q2011/0035 ,  H04Q2011/0039 ,  H04Q2011/0052 ,  H04Q2011/006

Abstract: An optical switch (10) comprising: input ports (12, 14) arranged to receive optical signals from directions D1 to Dn; output ports (16, 18) arranged to output optical signals to the said directions; drop ports (20); add ports (22); a first switch array (24) arranged to receive from a first said input port (12) optical signals at a plurality of wavelengths, and comprising switch elements (26) each arranged to selectively direct optical signals to a respective drop port. The optical switch (10) further comprising optical filters (28), each arranged to receive from the first input port optical signals having bypass wavelengths, each optical filter arranged to transmit to a respective one of the output ports (18) optical signals at different bypass wavelengths; and a second switch array (30) arranged to receive from the other input ports (14) optical signals at some of said wavelengths, the second switch array comprising a plurality of switch elements (32) arranged to selectively add optical signals received from the add ports at others of said wavelengths.

Abstract translation: 一种光开关（10），包括：输入端口（12,14），用于接收来自方向D1至Dn的光信号; 输出端口（16,18），用于向所述方向输出光信号; 下拉端口（20）; 添加端口（22）; 第一开关阵列（24），其被布置为从第一所述输入端口（12）接收多个波长的光信号，并且包括开关元件（26），每个开关元件被布置为选择性地将光信号引导到相应的引出端口。 所述光学开关（10）还包括光学滤波器（28），每个光学滤波器被布置为从所述第一输入端口接收具有旁路波长的光信号，每个光学滤波器被布置为向所述输出端口（18）中的相应输出端口 旁路波长; 和第二开关阵列（30），其被布置为从所述其他输入端口（14）接收一些所述波长处的光信号，所述第二开关阵列包括多个开关元件（32），所述多个开关元件被布置为选择性地添加从所述添加器 在其他所述波长处的端口。

公开(公告)号：EP2355388A3

公开(公告)日：2017-04-05

申请号：EP11152223.1

申请日：2011-01-26

Applicant: FUJITSU LIMITED

Inventor： Oda, Shoichiro ,  Hoshida, Takeshi

IPC: H04J14/02 ,  H04L1/00

CPC classification number: H04L1/0036 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0221 ,  H04L1/0053

Abstract: An attenuation amount corresponding to each wavelength at OADM node is optimized according to a calculation result in a network management system (NMS), so that an optical signal level diagram according to traffic volume variations is set, the level diagram allows each of optical signal quality indexes at terminal nodes for all wavelengths to be maintained at a required threshold value or more, and allows an optical signal quality index of a specific wavelength to be improved. Then, an FEC circuit in an optical receiver corresponding to the specific wavelength is turned OFF or the error correction ability is lowered, whereby power consumption of an overall optical network is efficiently reduced.

Abstract translation: 根据网络管理系统（NMS）中的计算结果优化对应于OADM节点处的每个波长的衰减量，从而设置根据业务量变化的光信号电平图，电平图允许每个光信号质量 在所有波长的终端节点处的索引将被维持在所需的阈值或更大，并且允许提高特定波长的光信号质量指数。 然后，对应于特定波长的光接收机中的FEC电路被关断或纠错能力降低，从而有效地降低了整个光网络的功耗。

公开(公告)号：EP3146655A1

公开(公告)日：2017-03-29

申请号：EP14726345.3

申请日：2014-05-23

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： TESTA, Francesco ,  BIANCHI, Alberto

IPC: H04J14/02

CPC classification number: H04J14/0212 ,  H04J14/0206 ,  H04J14/0283 ,  H04J14/0294 ,  H04J14/0295 ,  H04Q11/0066 ,  H04Q2011/0016 ,  H04Q2011/0039 ,  H04Q2011/0081

Abstract: An optical switch, comprising: a first optical waveguide, a first optical add path, a second optical add path and a micro-ring resonator. The micro-ring resonator is operable to add a first optical signal at a preselected wavelength received from the first optical add path to the first optical waveguide to travel in a first direction through the first optical waveguide. The micro-ring resonator is further operable to add a second optical signal at the preselected wavelength received from the second optical add path to the first optical waveguide to travel in a second direction through the first optical waveguide opposite to the first direction. There is also provided an optical drop switch, an optical switching apparatus, an optical communications network node and an optical communications network.

Abstract translation: 一种光开关，包括：第一光波导，第一光加法路径，第二光加法路径和微环谐振器。 微环谐振器可操作地将从第一光学添加路径接收的预选波长的第一光信号添加到第一光波导，以沿第一方向穿过第一光波导。 微环谐振器还可操作以将第二光学信号以从第二光学添加路径接收的预选波长加到第一光波导，以沿与第一方向相反的第一光波导沿第二方向行进。 还提供了一种光分路开关，光开关装置，光通信网络节点和光通信网络。

公开(公告)号：EP2592790B1

公开(公告)日：2017-03-01

申请号：EP10854345.5

申请日：2010-11-15

Applicant: ZTE Corporation

Inventor： XIE, Gang

IPC: H04L12/751 ,  H04J14/02

CPC classification number: H04J14/0227 ,  H04J14/0212 ,  H04L45/02

公开(公告)号：EP3089382A4

公开(公告)日：2016-12-21

申请号：EP13900393

申请日：2013-12-25

Applicant: HUAWEI MARINE NETWORKS CO LTD

Inventor： ZHANG LIKUN ,  ZHANG WENDOU ,  CUI KEQIANG

IPC: H04J14/02 ,  H04B10/25 ,  H04B10/80 ,  H04Q11/00

CPC classification number: H04J14/0204 ,  H04B10/2504 ,  H04B10/80 ,  H04J14/0205 ,  H04J14/0212 ,  H04J14/0217 ,  H04J14/0289 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0016

Abstract: An optical add/drop multiplexer branching unit is provided, where the optical add/drop multiplexer branching unit includes: a trunk input end, a branch input end, a trunk output end, a branch output end, an optical add/drop multiplexer, a first coupler, a first detection circuit, and a control circuit, where the optical add/drop multiplexer includes an optical switch. A detection circuit detects whether a fault occurs in a trunk, and in a case in which a fault occurs in the trunk, a working mode is switched from a first working mode to a second working mode, to implement automatic redundancy on the trunk and ensure normal communication on a branch. According to the foregoing solution, a redundancy function is implemented without integrating an amplifier. Manual intervention is unnecessary, and a redundancy response speed is fast, thereby improving a redundancy effect, and significantly reducing an economic loss caused by system service transmission interruption. A used optical switch component is small in size, has a low requirement on structure space, and is of low complexity in structural design. Therefore, structural complexity is reduced, so as to reduce costs and improve reliability.

公开(公告)号：EP2255542B1

公开(公告)日：2016-12-07

申请号：EP09717604.4

申请日：2009-03-04

Applicant: Tellabs Operations, Inc.

Inventor： BODUCH, Mark, E.

IPC: H04Q11/00

CPC classification number: G02B6/293 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0208 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0219 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0282 ,  H04J14/0283 ,  H04J14/0284 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0032 ,  H04Q2011/0052

公开(公告)号：EP3065356A1

公开(公告)日：2016-09-07

申请号：EP16166524.5

申请日：2012-07-06

Applicant: Huawei Technologies Co., Ltd.

Inventor： LEE, Young ,  BERNSTEIN, Greg

IPC: H04L12/721 ,  H04B10/077 ,  H04B10/079 ,  H04B10/27 ,  H04J14/02 ,  H04L12/717

CPC classification number: H04B10/0771 ,  H04B10/0795 ,  H04B10/27 ,  H04J14/02 ,  H04J14/0212 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0271 ,  H04L45/123 ,  H04L45/42 ,  H04L45/62

Abstract: The disclosure includes an apparatus comprising: a path computation element (PCE) comprising a processor configured to: receive a path computation element protocol (PCEP) path computation request from a path computation client (PCC), wherein the path computation request comprises an impairment validation request that directs the PCE to perform an impairment validation of a network path; after receiving the path computation request, compute a network path; and perform an impairment validation of the network path specified by the impairment validation request. In another embodiment, the disclosure includes a method comprising: sending, by a PCC a PCEP path computation request to a PCE, wherein the request directs the PCE to perform routing and wavelength assignment (RWA) and a first impairment validation of a network path, wherein the request comprises a type of signal quality of the network path which indicates the first type of impairment validation to be performed.

Abstract translation: 本公开包括一种装置，包括：路径计算元件（PCE），包括处理器，其被配置为：从路径计算客户端（PCC）接收路径计算元件协议（PCEP）路径计算请求，其中所述路径计算请求包括损害验证 请求指示PCE执行网络路径的减损验证; 在接收到路径计算请求后，计算网络路径; 并执行由减值确认请求指定的网络路径的减值确认。 在另一个实施例中，本公开包括一种方法，包括：由PCC向PCE发送PCEP路径计算请求，其中所述请求指示PCE执行路由和波长分配（RWA）以及网络路径的第一受损验证， 其中所述请求包括所述网络路径的信号质量类型，其指示要执行的所述第一类型的减值验证。

公开(公告)号：EP3057247A1

公开(公告)日：2016-08-17

申请号：EP13897605.5

申请日：2013-11-13

Applicant: Huawei Marine Networks Co., Ltd.

Inventor： ZHANG, Wendou ,  XU, Changwu ,  MA, Liping

IPC: H04B10/071 ,  H04J14/02

CPC classification number: H04J14/0212 ,  G02B6/29382 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0215 ,  H04J14/0221 ,  H04J14/0291

Abstract: Embodiments of the present invention provide a reconfigurable optical add-drop multiplexer apparatus, and relate to the field of communications, so as to solve the problem of inconvenient line failure detection. The ROADM apparatus includes: a first ROADM, a second ROADM, one splitting coupler, four optical amplifiers, and four couplers. The embodiments of the present invention are used in a communications line architecture.

Abstract translation: 本发明的实施例提供了一种可重构的光分插复用器装置，涉及通信领域，以解决线路故障检测不方便的问题。 该ROADM装置包括：第一ROADM，第二ROADM，一个分离耦合器，四个光放大器和四个耦合器。 本发明的实施例用于通信线路架构。