公开(公告)号：EP3407511A1

公开(公告)日：2018-11-28

申请号：EP18169429.0

申请日：2013-07-26

申请人： Aurrion, Inc.

发明人： KOCH, Brian ,  SPARACIN, Daniel ,  FANG, Alexander

IPC分类号： H04B10/50 ,  H04B10/564 ,  H04J14/00 ,  H04J14/02 ,  H04Q11/00

CPC分类号： H04B10/503 ,  H04B10/506 ,  H04B10/564 ,  H04J14/00 ,  H04J14/0212 ,  H04J14/0257 ,  H04J14/0267 ,  H04Q11/0005 ,  H04Q2011/0022 ,  H04Q2011/0032 ,  H04Q2011/0039

摘要： Embodiments of the invention describe apparatuses, optical systems, and methods for utilizing a dynamically reconfigurable optical transmitter. A laser array outputs a plurality of laser signals (which may further be modulated based on electrical signals), each of the plurality of laser signals having a wavelength, wherein the wavelength of each of the plurality of laser signals is tunable based on other electrical signals. An optical router receives the plurality of (modulated) laser signals at input ports and outputs the plurality of received (modulated) laser signals to one or more output ports based on the tuned wavelength of each of the plurality of received laser signals. This reconfigurable transmitter enables dynamic bandwidth allocation for multiple destinations via the tuning of the laser wavelengths.

公开(公告)号：EP2858270B1

公开(公告)日：2018-09-05

申请号：EP13794302.3

申请日：2013-05-14

申请人： ZTE Corporation

发明人： FU, Xihua ,  ZHANG, Xinling

IPC分类号： H04B10/116 ,  H04J14/02

CPC分类号： H04J14/0241 ,  H04J14/02 ,  H04J14/0257 ,  H04J14/0267

摘要： A channel establishment method and device are provided. The method includes: establishing a media channel between a first node and a second node, wherein the first node is the source node of the media channel, the second node is the destination node of the media channel, and the media channel passes the frequency slot matrix of the one or more intermediate nodes between the first node and the second node and the optical fiber between any two nodes; and allocating frequency spectrum to the media channel from the available frequency spectrum of the optical fiber, wherein the media channel supports at least one single signal frequency slot. The solution can address the problem of how to effectively plan and manage frequency spectrum for an introduced flexible grid technology.

公开(公告)号：EP2351264B1

公开(公告)日：2018-07-04

申请号：EP10738214.5

申请日：2010-02-04

申请人： Huawei Technologies Co., Ltd.

发明人： YOUNG, Lee ,  GREG, Bernstein

IPC分类号： H04J14/02 ,  H04Q11/00

CPC分类号： H04J14/0267 ,  H04J14/0256 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0269 ,  H04J14/0271 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0086

摘要： An apparatus comprising a path computation element (PCE) configured for at least partial impairment aware routing and wavelength assignment (RWA) and to communicate with a path computation client (PCC) based on a PCE protocol (PCEP) that supports path routing, wavelength assignment (WA), and impairment validation (IV). Also disclosed is a network component comprising at least one processor configured to implement a method comprising establishing a PCEP session with a PCC, receiving path computation information comprising RWA information and constraints from the PCC, establishing impairment aware RWA (IA-RWA) based on the path computation information and a private impairment information for a vendor's equipment, and sending a path and an assigned wavelength based on the IA-RWA to the PCC. Disclosed is a method comprising establishing impairment aware routing and wavelength assignment for a plurality of network elements (NEs) in an optical network using routing and combined WA and IV.

公开(公告)号：EP1892905B1

公开(公告)日：2018-04-11

申请号：EP07253247.6

申请日：2007-08-17

申请人： Juniper Networks, Inc.

发明人： Sindhu, Pradeep

IPC分类号： H04L12/933 ,  H04L12/931 ,  H04L12/947 ,  H04L12/721 ,  H04J14/02 ,  H04Q11/00

CPC分类号： H04J14/0227 ,  H04J14/0241 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/028 ,  H04L45/62 ,  H04L49/101 ,  H04L49/102 ,  H04L49/25 ,  H04L49/40 ,  H04Q11/0005 ,  H04Q2011/0039 ,  H04Q2011/0052

摘要： A multi-chassis network device (120) includes a plurality of nodes (128A-D) that operate as a single device within the network and a switch fabric (125A-D) that forwards data plane packets between the plurality of nodes (128A-D). The switch fabric (125A-D) includes a set of multiplexed optical interconnects coupling the nodes (128A-D). For example, a multi-chassis router (120) includes a plurality of routing nodes (128A-D) that operate as a single router within a network and a switch fabric (125A-D) that forwards packets between the plurality of routing nodes (128A-D). The switch fabric (125A-D) includes at least one multiplexed optical interconnect coupling the routing nodes (128A-D). The nodes (128A-D) of the multi-chassis router (120) may direct portions of the optical signal over the multiplexed optical interconnect to different each other using wave-division multiplexing.

公开(公告)号：EP2608464B1

公开(公告)日：2018-02-14

申请号：EP11191524.5

申请日：2011-12-01

申请人： ADVA Optical Networking SE

发明人： Bryskin, Igor

IPC分类号： H04L12/735 ,  H04J14/02 ,  H04L12/703

CPC分类号： H04L45/128 ,  H04J14/0267 ,  H04J14/0268 ,  H04L45/28

摘要： A method and apparatus for providing network failure independent links in a multilayer network comprising a client layer and a server layer, wherein each link of said client layer is served by a connection provisioned in said server layer,wherein mutually disjoint paths for said connections which serve links in said client layer that belong to the same predetermined mutually disjoint link group are calculated.

公开(公告)号：EP2981004B1

公开(公告)日：2018-01-10

申请号：EP14889630

申请日：2014-04-18

申请人： HUAWEI TECH CO LTD

发明人： ZHANG XUECANG ,  HAO QINFEN ,  LIU YAODA

IPC分类号： H04B10/27 ,  H04L12/54 ,  H04L12/931 ,  H04Q11/00

CPC分类号： H04Q11/0071 ,  H04J14/0201 ,  H04J14/0267 ,  H04L45/74 ,  H04Q11/0005 ,  H04Q11/0066 ,  H04Q2011/0039 ,  H04Q2011/0058 ,  H04Q2011/0088

摘要： Embodiments of the present invention disclose an interconnection system, an apparatus, and a data transmission method. In the interconnection system, to-be-transmitted data is converted into a data packet in an optical signal form for transmission, and a control packet corresponding to the data packet is transmitted in an electrical signal form and includes routing information of the data packet. When the control packet passes through a switching node, the switching node directly determines, according to the routing information in the control packet, a neighboring node that serves as a next hop, and opens, in the switching node, an optical path used to transmit the data packet for transmitting the data packet. Because no optical-to-electrical or electrical-to-optical conversion needs to be performed on the control packet and the data packet during an entire transmission procedure, problems of an extra delay and power consumption caused by electrical-optical-electrical conversion can be reduced, thereby improving data transmission efficiency.

公开(公告)号：EP3065356B1

公开(公告)日：2017-12-27

申请号：EP16166524.5

申请日：2012-07-06

申请人： Huawei Technologies Co., Ltd.

发明人： LEE, Young ,  BERNSTEIN, Greg

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

CPC分类号： 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

摘要： 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.

公开(公告)号：EP2666250B1

公开(公告)日：2017-04-26

申请号：EP11810607.9

申请日：2011-12-27

申请人： Telefónica, S.A.

发明人： GONZÁLEZ DE DIOS, Oscar

IPC分类号： H04L12/24 ,  H04B10/032 ,  H04Q11/00 ,  H04J14/02

CPC分类号： H04B10/032 ,  H04J14/0267 ,  H04J14/0268 ,  H04J14/0271 ,  H04J14/0284 ,  H04J14/0287 ,  H04L41/0663 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0081

公开(公告)号：EP2562950A4

公开(公告)日：2017-03-15

申请号：EP10850573

申请日：2010-10-15

申请人： ZTE CORP

发明人： WANG WENYING ,  WANG JIAYU

IPC分类号： H04J14/02

CPC分类号： H04J14/0257 ,  H04J14/0267 ,  H04J14/0269

摘要： The disclosure discloses a calculation method for wavelength assignment, in which an inner-node wavelength connectivity matrix is constructed for each node on a routing path, and an operation is performed on the inner-node wavelength connectivity matrix of each node, sequentially from a first node on the routing path to a last node on the routing path, according to a preset matrix calculation method. The disclosure also discloses a calculation device for wavelength assignment. The calculation time for the wavelength assignment are reduced by applying the calculation method and device.

摘要翻译： 本公开公开了一种用于波长分配的计算方法，其中为路由路径上的每个节点构建内部节点波长连通性矩阵，并且从第一个节点顺序地对每个节点的内部节点波长连接矩阵执行操作 根据预设的矩阵计算方法，路由路径上的节点到路由路径上的最后一个节点。 本公开还公开了一种用于波长分配的计算装置。 通过应用计算方法和设备减少波长分配的计算时间。

公开(公告)号：EP2675116A4

公开(公告)日：2017-03-01

申请号：EP12745105

申请日：2012-01-26

申请人： MITSUBISHI ELECTRIC CORP

发明人： MUKAI HIROAKI ,  NAKURA KENICHI

IPC分类号： H04L12/44 ,  H04J14/02 ,  H04L12/40 ,  H04Q11/00

CPC分类号： H04Q11/0003 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0267 ,  H04J14/0268 ,  H04J14/0282 ,  H04L12/40039 ,  H04Q11/0067 ,  H04Q2011/0064

摘要： An object of the present invention is to provide a communication system capable of reducing the possibility of switching errors of determining that a failure occurs to a currently used trunk communication line and switching the currently used trunk communication line to a backup communication line even when there is no failure in the currently used trunk communication line and capable of realizing a more appropriate line operation. The communication system according to the present invention is a communication system in which a combination of redundant configurations of communication lines and a power-saving-mode operating function is incorporated, and includes a power-saving-device identification unit that identifies a slave station device in a power saving mode, and a line switching unit that switches a communication line forming a communication route from the currently used communication line to the backup communication line when a state where a master station device does not receive a signal from any of a plurality of slave station devices except for the slave station device identified by the power-saving-device identification unit as being in the power saving mode among the slave station devices continues for a predetermined time.

摘要翻译： 本发明的目的是提供一种通信系统，即使在存在故障的情况下，也能够减少当前使用的中继线路通信线路发生故障切换的错误的可能性，并将当前使用的中继线通信线路切换到备用通信线路 目前使用的主干通信线路没有故障，能够实现更合适的线路操作。 根据本发明的通信系统是包括通信线路的冗余配置和省电模式操作功能的组合的通信系统，并且包括识别从站设备的节电设备识别单元 在省电模式下，以及线路切换单元，当主站设备未接收到来自多个的通信线路中的任何一个的信号的状态时，将形成通信线路的通信线路从当前使用的通信线路切换到备用通信线路 从属站设备之外的从站设备除了由节电设备识别单元识别为处于省电模式的从站设备继续预定的时间。