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    Communication Network with Skew Path Monitoring and Adjustment
    4.
    发明申请
    Communication Network with Skew Path Monitoring and Adjustment 有权
    具有倾斜路径监测和调整的通信网络

    公开(公告)号：US20080175590A1

    公开(公告)日：2008-07-24

    申请号：US11781912

    申请日：2007-07-23

    申请人： Drew D. Perkins ,  David F. Welch ,  Ting-Kuang Chiang ,  Charles H. Joyner ,  Edward E. Sprague ,  Parthiban Kandappan ,  Stephen G. Grubb ,  Biao Lu ,  Prasad Paranjape

    发明人： Drew D. Perkins ,  David F. Welch ,  Ting-Kuang Chiang ,  Charles H. Joyner ,  Edward E. Sprague ,  Parthiban Kandappan ,  Stephen G. Grubb ,  Biao Lu ,  Prasad Paranjape

    IPC分类号： H04B10/00

    CPC分类号： H04J14/02

    摘要： Embodiments of the present invention route a WDM signal across multiple communication paths using skew characteristics of at least some of the communication paths. The network is an optical transport network, using either circuit or packet based switching, and wavelength division multiplexed wavelengths and/or optical carrier groups (“OCGs”) over a fiber link to another node in the network. The plurality of communication paths involves different signal and path attributes such as a plurality of carrier wavelengths, optical carrier groups, physical communication paths (different nodes, different fibers along a same path, or any combination of the foregoing), or any other differentiating factors between two paths.

    摘要翻译： 本发明的实施例使用至少一些通信路径的偏斜特性来跨越多个通信路径来路由WDM信号。 该网络是光传输网络，其使用电路或分组交换，以及波分复用波长和/或光载波组（“OCG”），通过光纤链路到网络中的另一个节点。 多个通信路径涉及不同的信号和路径属性，例如多个载波波长，光载波组，物理通信路径（不同节点，沿着相同路径的不同光纤，或前述的任何组合）或任何其它微分因素 两条路径之间。

    PROVIDING ACCESS TO CLIENT OVERHEAD WHILE TRANSPARENTLY TRANSMITTING THE CLIENT SIGNAL
    5.
    发明申请
    PROVIDING ACCESS TO CLIENT OVERHEAD WHILE TRANSPARENTLY TRANSMITTING THE CLIENT SIGNAL 有权
    在客户端发送信息时提供客户端访问权限

    公开(公告)号：US20110004700A1

    公开(公告)日：2011-01-06

    申请号：US12496246

    申请日：2009-07-01

    申请人： Edward E. Sprague ,  Radhakrishna Valiveti ,  Jan Bialkowski ,  Ting-Kuang Chiang ,  Biao Lu ,  Rajan Rao ,  Parthiban Kandappan

    发明人： Edward E. Sprague ,  Radhakrishna Valiveti ,  Jan Bialkowski ,  Ting-Kuang Chiang ,  Biao Lu ,  Rajan Rao ,  Parthiban Kandappan

    IPC分类号： G06F15/16

    CPC分类号： H04J3/1652 ,  H04J2203/0046 ,  H04J2203/0057

    摘要： A method includes receiving client data; extracting overhead data from the client data; mapping the client data into one or more frames, where each of the one or more frames has a frame payload section and a frame overhead section, where the client data is mapped into the frame payload section of the one or more frames; inserting the overhead data into the frame overhead section of the one or more frames; transporting the one or more frames across a network; extracting the overhead data from the frame overhead section of the one or more frames; recovering the client data from the one or more frames; inserting the extracted overhead data into the recovered client data to create modified client data; and outputting the modified client data.

    摘要翻译： 一种方法包括接收客户数据; 从客户端数据提取开销数据; 将客户端数据映射到一个或多个帧，其中一个或多个帧中的每一个具有帧有效载荷部分和帧开销部分，其中客户端数据被映射到一个或多个帧的帧有效载荷部分; 将开销数据插入到一个或多个帧的帧开销部分中; 通过网络传送一个或多个帧; 从所述一个或多个帧的帧开销部分提取开销数据; 从一个或多个帧恢复客户端数据; 将提取的开销数据插入到恢复的客户端数据中以创建修改的客户端数据; 并输出修改的客户端数据。

    Providing access to client overhead while transparently transmitting the client signal
    6.
    发明授权
    Providing access to client overhead while transparently transmitting the client signal 有权
    提供对客户端开销的访问，同时透明地传送客户端信号

    公开(公告)号：US08446906B2

    公开(公告)日：2013-05-21

    申请号：US12496246

    申请日：2009-07-01

    申请人： Edward E. Sprague ,  Radhakrishna Valiveti ,  Jan Bialkowski ,  Ting-Kuang Chiang ,  Biao Lu ,  Rajan Rao ,  Parthiban Kandappan

    发明人： Edward E. Sprague ,  Radhakrishna Valiveti ,  Jan Bialkowski ,  Ting-Kuang Chiang ,  Biao Lu ,  Rajan Rao ,  Parthiban Kandappan

    IPC分类号： H04L12/28 ,  H04L12/56

    CPC分类号： H04J3/1652 ,  H04J2203/0046 ,  H04J2203/0057

    摘要： A method includes receiving client data; extracting overhead data from the client data; mapping the client data into one or more frames, where each of the one or more frames has a frame payload section and a frame overhead section, where the client data is mapped into the frame payload section of the one or more frames; inserting the overhead data into the frame overhead section of the one or more frames; transporting the one or more frames across a network; extracting the overhead data from the frame overhead section of the one or more frames; recovering the client data from the one or more frames; inserting the extracted overhead data into the recovered client data to create modified client data; and outputting the modified client data.

    摘要翻译： 一种方法包括接收客户端数据; 从客户端数据提取开销数据; 将客户端数据映射到一个或多个帧，其中一个或多个帧中的每一个具有帧有效载荷部分和帧开销部分，其中客户端数据被映射到一个或多个帧的帧有效载荷部分; 将开销数据插入到一个或多个帧的帧开销部分中; 通过网络传送一个或多个帧; 从所述一个或多个帧的帧开销部分提取开销数据; 从一个或多个帧恢复客户端数据; 将提取的开销数据插入到恢复的客户端数据中以创建修改的客户端数据; 并输出修改的客户端数据。

    Method and apparatus for rerouting an optical network upon fault
    8.
    发明授权
    Method and apparatus for rerouting an optical network upon fault 有权
    故障时重新路由光网络的方法和装置

    公开(公告)号：US07009934B1

    公开(公告)日：2006-03-07

    申请号：US09259263

    申请日：1999-03-01

    申请人： Drew D. Perkins ,  Theodore E. Tedijanto ,  Neeraj Gulati ,  Biao Lu

    发明人： Drew D. Perkins ,  Theodore E. Tedijanto ,  Neeraj Gulati ,  Biao Lu

    IPC分类号： G06F11/00

    CPC分类号： H04Q11/0478 ,  H04L2012/562 ,  H04L2012/5627

    摘要： A system and method for automatically generating a topology of a network having synchronous optical network (SONET) switches. Switches in the network pass information about itself to other switches in the network so that every switch can maintain a topology of the network. Using this knowledge of the network topology, each switch can generate a communication route within the network and automatically allot bandwidth for the route. Each switch may generate a new route in response to a line failure.

    摘要翻译： 一种用于自动生成具有同步光网络（SONET）交换机的网络拓扑的系统和方法。 网络中的交换机将有关自身的信息传递到网络中的其他交换机，以便每个交换机可以维护网络的拓扑。 使用这种网络拓扑的知识，每个交换机可以在网络内生成通信路由并且自动分配该路由的带宽。 每个交换机可能会响应线路故障生成新的路由。

    Optical layer status exchange over OSC-OAM method for ROADM networks
    9.
    发明授权
    Optical layer status exchange over OSC-OAM method for ROADM networks 有权
    用于ROADM网络的OSC-OAM方法的光层状态交换

    公开(公告)号：US09485015B2

    公开(公告)日：2016-11-01

    申请号：US13452413

    申请日：2012-04-20

    申请人： Rajan Rao ,  Edward E. Sprague ,  Biao Lu ,  Sharfuddin Syed

    发明人： Rajan Rao ,  Edward E. Sprague ,  Biao Lu ,  Sharfuddin Syed

    IPC分类号： H04B10/077 ,  H04J14/02 ,  H04J3/14

    CPC分类号： H04B10/0773 ,  H04B2210/072 ,  H04J3/14 ,  H04J14/0212 ,  H04J14/0268 ,  H04J14/0273 ,  H04J14/0275 ,  H04J2203/0057 ,  H04J2203/006 ,  H04J2203/0096

    摘要： A method for receiving, by circuitry of an optical node adapted for wavelength multiplexing and wavelength switching, a signal over OSC comprising overhead information indicative of status of at least one of an optical layer in an OTN; wherein the signal utilizes OC-N frame format comprising a first STS frame, a second STS frame, and a third STS frame, the STS frames having a format wherein the information is assigned to a number of bits designated for OAM information, wherein the bits are assigned to bytes within a transport overhead portion of the STS frame format within the OC-N frame format; terminating, by circuitry of the optical node, the signal at the optical node; and notifying, by circuitry of the optical node, software of the status of the optical layer in the OTN.

    摘要翻译： 一种用于通过适用于波长多路复用和波长切换的光节点的电路接收包括指示OTN中的光层中的至少一个状态的开销信息的OSC上的信号的方法; 其中所述信号利用包括第一STS帧，第二STS帧和第三STS帧的OC-N帧格式，所述STS帧具有其中所述信息被分配给指定用于OAM信息的比特数的格式，其中所述比特 被分配给OC-N帧格式的STS帧格式的传输开销部分内的字节; 通过光节点的电路终止光节点处的信号; 并通过光节点的电路通知OTN中光层的状态的软件。

    OPTICAL LAYER STATUS EXCHANGE OVER OSC - OAM METHOD FOR ROADM NETWORKS
    10.
    发明申请
    OPTICAL LAYER STATUS EXCHANGE OVER OSC - OAM METHOD FOR ROADM NETWORKS 有权
    OSC的光层状态交换 - 路由网的OAM方法

    公开(公告)号：US20130121685A1

    公开(公告)日：2013-05-16

    申请号：US13452413

    申请日：2012-04-20

    申请人： Rajan Rao ,  Edward E. Sprague ,  Biao Lu ,  Sharfuddin Syed

    发明人： Rajan Rao ,  Edward E. Sprague ,  Biao Lu ,  Sharfuddin Syed

    IPC分类号： H04B10/08

    CPC分类号： H04B10/0773 ,  H04B2210/072 ,  H04J3/14 ,  H04J14/0212 ,  H04J14/0268 ,  H04J14/0273 ,  H04J14/0275 ,  H04J2203/0057 ,  H04J2203/006 ,  H04J2203/0096

    摘要： A method for receiving, by circuitry of an optical node adapted for wavelength multiplexing and wavelength switching, a signal over OSC comprising overhead information indicative of status of at least one of an optical layer in an OTN; wherein the signal utilizes OC-N frame format comprising a first STS frame, a second STS frame, and a third STS frame, the STS frames having a format wherein the information is assigned to a number of bits designated for OAM information, wherein the bits are assigned to bytes within a transport overhead portion of the STS frame format within the OC-N frame format; terminating, by circuitry of the optical node, the signal at the optical node; and notifying, by circuitry of the optical node, software of the status of the optical layer in the OTN.

    摘要翻译： 一种用于通过适用于波长多路复用和波长切换的光节点的电路接收包括指示OTN中的光层中的至少一个状态的开销信息的OSC上的信号的方法; 其中所述信号利用包括第一STS帧，第二STS帧和第三STS帧的OC-N帧格式，所述STS帧具有其中所述信息被分配给指定用于OAM信息的比特数的格式，其中所述比特 被分配给OC-N帧格式的STS帧格式的传输开销部分内的字节; 通过光节点的电路终止光节点处的信号; 并通过光节点的电路通知OTN中光层的状态的软件。