公开(公告)号：US20180287725A1

公开(公告)日：2018-10-04

申请号：US15923241

申请日：2018-03-16

Applicant: ADVA Optical Networking SE

Inventor： Michael Rabinovich ,  Moshe Tofef

IPC: H04J3/06

Abstract: There is provided a method of clock management in a packet data network (PDN) implementing a time-transfer protocol and a clock controller configured to operate therein. The clock controller is configured to: obtain topology data informative of a master clock node and a slave clock node constituting end points of a PTP path in the PDN and further informative of at least part of transit nodes of said PTP path; periodically obtain data informative of queue size and link rate characterizing, during a collection period, the at least part of transit nodes in master-slave (MS) and slave-master (SM) directions; for each collection period, use the obtained queue-related data to estimate queue-induced delay asymmetry of the PTP path; and send the estimated value of queue-induced delay asymmetry to the slave node, the estimated value to be used by a clock residing on the slave node as delay asymmetry correction parameter.

公开(公告)号：US10061089B2

公开(公告)日：2018-08-28

申请号：US14032275

申请日：2013-09-20

Applicant: ADVA Optical Networking SE

Inventor： Rodney Bridges

IPC: G02B6/36 ,  H05K3/30 ,  H05K1/02 ,  G02B6/44

CPC classification number: G02B6/3616 ,  G02B6/4454 ,  G02B6/4471 ,  H05K1/0274 ,  H05K3/301 ,  H05K2201/10121 ,  H05K2201/10606

Abstract: A holding device for holding cylindrical fiber optical components comprising at least one stackable body each having at least one recess adapted to receive cylindrical fiber optical components.

公开(公告)号：US10031290B2

公开(公告)日：2018-07-24

申请号：US15788388

申请日：2017-10-19

Applicant: ADVA Optical Networking SE

Inventor： Benjamin Wohlfeil

IPC: G02B6/12 ,  H04J14/02 ,  H04B10/12 ,  G02B6/293 ,  G02B6/42 ,  H04B10/572 ,  H01S3/08 ,  H01S5/14

Abstract: The invention relates to an optical interference filter device which defines a first periodic filter frequency response between a first filter output port and a filter input port and a second periodic filter frequency response having the same free spectral range as the first periodic frequency response between a second filter output port and the filter input port. The first and second periodic filter frequency responses are shifted versus each other by a predetermined optical frequency distance.

公开(公告)号：US09391923B2

公开(公告)日：2016-07-12

申请号：US13826142

申请日：2013-03-14

Applicant: ADVA Optical Networking SE

Inventor： Igor Bryskin ,  Vishnu Pavan Beeram

IPC: H04L12/70 ,  H04L12/911 ,  H04L12/24 ,  H04L12/751 ,  H04L12/721 ,  H04L12/717 ,  H04L12/26 ,  H04L12/723

CPC classification number: H04L47/829 ,  H04L41/04 ,  H04L41/5077 ,  H04L43/0811 ,  H04L45/10 ,  H04L45/42 ,  H04L45/44 ,  H04L45/50 ,  H04L45/62

Abstract: The subject matter described herein includes using a path computation element communication protocol (PCEP) as a signaling protocol during dynamic service provisioning in networks. According to one aspect of the subject matter described herein, a network uses a hard state point-to-point protocol as a signaling protocol during dynamic service provisioning in a control plane of the network. In one implementation, the point-to-point protocol is a path computation element communication protocol (PCEP).

Abstract translation: 本文描述的主题包括在网络中的动态服务提供期间使用路径计算单元通信协议（PCEP）作为信令协议。 根据本文描述的主题的一个方面，在网络的控制平面中的动态服务提供期间，网络使用硬状态点对点协议作为信令协议。 在一个实现中，点到点协议是路径计算元件通信协议（PCEP）。

公开(公告)号：US09294215B2

公开(公告)日：2016-03-22

申请号：US13401497

申请日：2012-02-21

Applicant: Klaus Grobe ,  Markus Roppelt

Inventor： Klaus Grobe ,  Markus Roppelt

IPC: H04J14/02

CPC classification number: H04J14/0221 ,  H04J14/02 ,  H04J14/0254 ,  H04J14/0265 ,  H04J14/0275 ,  H04J14/0282

Abstract: The invention relates to a method of operating a first optical network element (100), particularly an optical network unit, ONU, wherein said method comprises the following steps: performing a coarse tuning process (2100) of at least one transmission wavelength which is used by said first optical network element (100) for transmitting an optical signal to a second optical network element (200), particularly an optical line terminal, OLT, and performing a fine tuning process (2200) of said at least one transmission wavelength, wherein said fine tuning process (2200) is preferably performed after said coarse tuning process (2100).

Abstract translation: 本发明涉及一种操作第一光网络元件（100），特别是光网络单元（ONU）的方法，其中所述方法包括以下步骤：执行使用的至少一个传输波长的粗调整处理（2100） 通过所述第一光网络元件（100）将光信号发射到第二光网络元件（200），特别是光线路终端OLT，并执行所述至少一个传输波长的微调处理（2200），其中 所述微调处理（2200）优选在所述粗调处理（2100）之后进行。

公开(公告)号：US09231877B2

公开(公告)日：2016-01-05

申请号：US14029110

申请日：2013-09-17

Applicant: ADVA Optical Networking SE

Inventor： Igor Bryskin

IPC: H04L12/26 ,  H04L12/815 ,  H04Q11/00 ,  H04L12/721 ,  H04L12/715

CPC classification number: H04L47/22 ,  H04L45/04 ,  H04L45/123 ,  H04L45/44 ,  H04Q11/0001

Abstract: A method for scaling traffic engineering, TE, routing in a network, having a plurality of network elements (nodes) connected in a given layer to each other via links TE domain segments of a TE domain of said network are collapsed into a virtual TE nodes (VNs). Each VN having an allocated DE domain unique identifier and a detailed connectivity matrix, DCM, to provide a hierarchically virtualized network topology of the network.

Abstract translation: 一种用于缩放网络中的流量工程，TE，路由的方法，具有通过所述网络的TE域的TE域链路经由给定层彼此连接的多个网络元件（节点）折叠成虚拟TE节点 （VN）。 每个VN具有分配的DE域唯一标识符和详细连接矩阵DCM，以提供网络的分层虚拟化的网络拓扑。

公开(公告)号：US09231724B2

公开(公告)日：2016-01-05

申请号：US13828130

申请日：2013-03-14

Applicant: ADVA Optical Networking SE

Inventor： Stephan Pachnicke ,  Michael Eiselt ,  Markus Roppelt ,  Mirko Lawin ,  Klaus Grobe ,  Jörg-Peter Elbers

IPC: H04J14/00 ,  H04J14/02

CPC classification number: H04J14/0227 ,  H04J14/0276

Abstract: An optical transmission system method including generating for a tunable laser a pilot tone having an adjustable pilot tone frequency identifying a wavelength division multiplexing channel used by the tunable laser; multiplying the pilot tone with pilot tone data to provide a pilot tone data signal; supplying the pilot tone data signal and a high frequency data signal to the tunable laser generating an optical laser signal output by the tunable laser responsive to the supplied signals; transporting the optical laser signal to a central wavelength to locker; converting the received optical laser signal to provide a pilot tone data signal for wavelength division multiplexing channels demodulated to detect the pilot tone and the pilot tone data for each individual wavelength division multiplexing channel; and identifying the wavelength division multiplexing channel on the basis of the pilot tone frequency of the detected pilot tone and evaluating the pilot tone data.

Abstract translation: 一种光传输系统方法，包括为可调谐激光器生成具有标识可调谐激光器使用的波分复用信道的可调导频音频率的导频音; 将导频音与导频音数据相乘以提供导频音数据信号; 向所述可调谐激光器提供导频音数据信号和高频数据信号，以响应于所提供的信号产生由可调谐激光器输出的光学激光信号; 将光学激光信号传输到中心波长至储物柜; 转换所接收的光学激光信号以提供用于波分多路复用通道的导频音数据信号，所述导频音数据信号被解调以检测每个单独的波分复用通道的导频音和导频音数据; 以及基于检测到的导频音调的导频音频率识别波分复用信道，并评估导频音数据。

公开(公告)号：US09219523B2

公开(公告)日：2015-12-22

申请号：US14081756

申请日：2013-11-15

Applicant: ADVA Optical Networking SE

Inventor： Michael Eiselt ,  Stephan Pachnicke

IPC: H04B3/32 ,  H04J14/02 ,  H04J14/06

CPC classification number: H04B3/32 ,  H04J14/02 ,  H04J14/0208 ,  H04J14/06

Abstract: Arrangement for transmitting an optical digital WDM signal over an optical transmission link or a passive optical network, the signal (SWDM) including N optical channels matching a given optical frequency grid. The scheme includes supplying the WDM signal (SWDM) to a near end of the optical transmission link or a near end of the passive optical network; receiving the WDM signal (SWDM) at a far end of the optical transmission link or at one or more far ends of the passive optical network; separating the optical channel signals (si(t)) by splitting and bandpass filtering the WDM signal (SWDM) received; and converting the optical channel signals (si(t)) into electrical channel signals using direct optical detection. The signal (SWDM) is created such that neighboring channel signals (si(t)) are orthogonally polarized and are conditioned with specific pre-distortion.

Abstract translation: 用于通过光传输链路或无源光网络发送光数字WDM信号的装置，所述信号（SWDM）包括与给定光频网格匹配的N个光信道。 该方案包括将WDM信号（SWDM）提供给光传输链路的近端或无源光网络的近端; 在所述光传输链路的远端处或在所述无源光网络的一个或多个远端处接收所述WDM信号（SWDM）; 通过对所接收的WDM信号（SWDM）进行分频和带通滤波来分离光信道信号（si（t））; 以及使用直接光学检测将光信道信号（si（t））转换成电信道信号。 创建信号（SWDM），使得相邻信道信号（si（t））被正交极化并且用特定的预失真来调节。

公开(公告)号：US09083456B2

公开(公告)日：2015-07-14

申请号：US13693594

申请日：2012-12-04

Applicant: ADVA Optical Networking SE

Inventor： David Fox ,  Lawrence T. Dillard, III ,  Neil Grayson

IPC: H04B10/08 ,  H04B17/00 ,  H04B10/07 ,  H04B10/075

CPC classification number: H04B10/07 ,  H04B10/0705 ,  H04B10/075

Abstract: A monitoring apparatus for detecting uncharacteristic short-term power level changes of an optical signal transmitted through an optical fiber, said monitoring apparatus comprising a power level variance calculation unit adapted to calculate a power level variance on the basis of a long-term power level and a current power level of said optical signal and a short-term variance filter adapted to filter transient changes indicated by the calculated power level variance and to generate a trouble occurrence indication indicating an uncharacteristic short-term power level change, if the filtered power level variance exceeds a predetermined power level variance.

Abstract translation: 一种用于检测通过光纤传输的光信号的非特性短期功率电平变化的监视装置，所述监视装置包括：功率电平方差计算单元，用于根据长期功率电平计算功率电平方差;以及 所述光信号的当前功率电平和适用于过滤由所计算的功率电平变化指示的瞬态变化的短期方差滤波器，并且如果滤波后的功率电平方差，则产生指示非特性短期功率电平变化的故障发生指示 超过预定的功率电平差异。

公开(公告)号：US09026632B2

公开(公告)日：2015-05-05

申请号：US13421353

申请日：2012-03-15

Applicant: Igor Bryskin ,  Vishnu Beeram ,  Wes Doonan

Inventor： Igor Bryskin ,  Vishnu Beeram ,  Wes Doonan

IPC: G06F15/173 ,  H04L12/24 ,  G06F15/177

CPC classification number: H04L41/08 ,  H04L41/0672 ,  H04L41/0816 ,  H04L41/0873 ,  H04L41/0893 ,  H04L41/12 ,  H04L41/5054 ,  H04L45/00 ,  H04L45/02

Abstract: A network with a network wide extended policy framework comprising: path computation clients (PCCs), associated with at least one local policy enforcement point (PEP); path computation servers (PCSs), associated with at least one policy decision point (PDP). The PEPs and PDPs adapted to exchange attributes determined by at least one PDP. PDPs are adapted to identify network elements/network services requiring identical configuration parameters by evaluating parameters advertised in the network and update policy related to identified groups in case of configuration error. Updated policy is distributed by PDP in policy notification to PEPs associated with network elements/network services of identified group. The PEPs receiving policy notification comprising updated policy from PDP adapted to translate the updated policy into configuration settings of network elements/network services the identified group.

Abstract translation: 具有网络广泛扩展策略框架的网络，包括：与至少一个本地策略执行点（PEP）相关联的路径计算客户端（PCC）; 路径计算服务器（PCS），与至少一个策略决策点（PDP）相关联。 PEP和PDP适于交换由至少一个PDP确定的属性。 适于通过评估在网络中公布的参数来识别需要相同配置参数的网络元件/网络服务，并且在配置错误的情况下更新与所识别的组相关的策略。 更新的策略由PDP在与识别组的网元/网络服务相关联的PEP的策略通知中分发。 接收策略通知的PEP包括来自PDP的更新策略，其适于将更新的策略转换为所识别的组的网络元件/网络服务的配置设置。