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    APPARATUS, SYSTEM, AND METHOD FOR ASYMMETRICAL AND DYNAMIC ROUTING
    82.
    发明公开
    APPARATUS, SYSTEM, AND METHOD FOR ASYMMETRICAL AND DYNAMIC ROUTING 有权
    设备，系统和方法不对称和动态路由

    公开(公告)号：EP2792092A1

    公开(公告)日：2014-10-22

    申请号：EP12857873.9

    申请日：2012-12-12

    申请人： Level 3 Communications, LLC

    发明人： CROWE, James Q. ,  DOERR, Peter Brennan ,  DUGAN, Andrew

    IPC分类号： H04J3/16

    CPC分类号： H04L47/12 ,  H04J14/0212 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0268 ,  H04J14/0272 ,  H04J14/0284 ,  H04L47/72

    摘要： An asymmetrical and dynamic routing system (ADRS) is provided to enable the dynamic adjustment of the bandwidth capacity of two or more network devices exchanging data. The two or more network devices monitor their current bandwidth demand between themselves and others in a network and a first network device can transmit bandwidth request to a second network device when the first network device reaches transmission bandwidth capacity. Each network device is further configured with additional transmit and receive ports and can be selectively enabled in response to a bandwidth request from other network devices. Each network device is further configured to generate control signals that are sent to optical mirrors to re-direct data signals to or from the one or more enabled additional transmit and receive ports.

    Determination device and determination method
    84.
    发明公开
    Determination device and determination method 审中-公开
    Bestimmungsvorrichtung und Bestimmungsverfahren

    公开(公告)号：EP2757716A2

    公开(公告)日：2014-07-23

    申请号：EP13198026.0

    申请日：2013-12-18

    申请人： FUJITSU LIMITED

    发明人： Shinohara, Haruka ,  Noheji, Kiyotoshi ,  Miyashita, Takuya

    IPC分类号： H04J14/02

    CPC分类号： H04J14/0268 ,  H04B10/038 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0271 ,  H04J14/0275 ,  H04Q2011/0081

    摘要： A determination device for an optical wavelength division multiplex communication system configured to set each of different paths each of which is formed by connection of spans each of which is a zone between two adjacent transmission devices, among transmission devices forming a communication network, in the communication network, or a single span in the communication network, for the corresponding one of different wavelengths, and configured to transmit an optical signal of each of the wavelengths via the corresponding path set to the wavelength, the device comprising: determination means for determining whether an optical signal of at least one of the wavelengths is transmittable only to a path, among newly formed paths, for which the number of spans forming the path is equal to or less than a predetermined upper-limit number, in order to transmit one or more optical signals of one or more wavelengths among the wavelengths.

    摘要翻译： 一种用于光波分复用通信系统的确定装置，被配置为在所述通信中，在形成通信网络的传输设备之间设置每个不同的路径，每个不同的路径通过跨越两个相邻传输设备之间的区域的跨接形成 网络或通信网络中的单个跨度，用于相应的不同波长的一个，并且被配置为经由设置为波长的相应路径来发送每个波长的光信号，该设备包括：确定装置，用于确定是否 至少一个波长的光信号可以仅在形成路径的跨度数量等于或小于预定上限数量的新形成的路径中的路径上传送，以便传输一个或多个 波长中的一个或多个波长的光信号。

    Optical node device, network and path-setting method
    86.
    发明公开
    Optical node device, network and path-setting method 审中-公开
    Optische Knotenvorrichtung，Netzwerk und Verfahren zur Pfadherstellung

    公开(公告)号：EP2717514A1

    公开(公告)日：2014-04-09

    申请号：EP13195558.5

    申请日：2004-03-12

    申请人： Nippon Telegraph & Telephone Corporation

    发明人： Oki, Eiji ,  Misawa, Akira ,  Katayama, Masaru ,  Okamoto, Satoru

    IPC分类号： H04L12/24 ,  H04B10/27 ,  H04B10/291

    CPC分类号： H04J14/0284 ,  H04B10/299 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0256 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0269 ,  H04L41/12

    摘要： An economical optical network is constituted by effectively using network resources by using the minimum number of, or minimum capacity of 3R repeaters. An optical node device stores a value Q, preset for each link based on optical signal deterioration characteristics in a link between the optical node device itself and an adjacent node. When the optical node device itself is a source node, the optical node device transmits an initial value P of a minuend to a next hop adjacent optical node device. When the optical node device itself receives from a previous hop adjacent optical node device, the initial value P or a minuend value P', which has already been reduced from the initial value P, the optical node device calculates (P-Q) or (P'-Q). The optical node device compares a calculated result with a threshold value. If the calculated result is greater than the threshold value, the optical node device transmits the calculated result to the next hop adjacent optical node device. If the calculated result is less than or equal to the threshold value, the optical node device implements 3R relay of an optical signal that reaches the optical node device itself. When the optical node device itself is not the destination node of an optical path to which the value of the minuend is transmitted, the optical node device transmits the initial value P of the minuend to the next hop adjacent optical node device using the optical node device itself as a 3R source node.

    摘要翻译： 通过使用3R中继器的最小数量或最小容量有效地使用网络资源来构成经济的光网络。 光节点设备存储基于光节点设备本身和相邻节点之间的链路中的光信号劣化特性为每个链路预设的值Q。 当光节点设备本身是源节点时，光节点设备将邻居光节点设备的下一跳发送初始值P。 当光节点设备本身从相邻光节点设备的上一跳接收到初始值P或从初始值P已经减小的最小值P'时，光节点设备计算（PQ）或（P' -Q）。 光节点装置将计算结果与阈值进行比较。 如果计算结果大于阈值，则光节点设备将计算结果发送到下一跳相邻光节点设备。 如果计算结果小于或等于阈值，则光节点设备实现到达光节点设备本身的光信号的3R中继。 当光节点设备本身不是发送所述减号值的光路的目的地节点时，光节点设备使用光节点设备向下一跳相邻光节点设备发送所述节点的初始值P 本身作为3R源节点。

    METHOD AND DEVICE FOR FREQUENCY ALLOCATION
    88.
    发明公开
    METHOD AND DEVICE FOR FREQUENCY ALLOCATION 有权
    VERFAHREN UND VORRICHTUNG ZUR FREQUENZZUWEISUNG

    公开(公告)号：EP2634940A1

    公开(公告)日：2013-09-04

    申请号：EP11836228.4

    申请日：2011-10-24

    申请人： Nippon Telegraph And Telephone Corporation

    发明人： HIRANO, Akira ,  SONE, Yoshiaki ,  KADOHATA, Akihiro ,  TANAKA, Takafumi ,  MATSUOKA, Shinji

    IPC分类号： H04J14/00 ,  H04J14/02 ,  H04L12/56

    CPC分类号： H04J14/0227 ,  H04J14/0257 ,  H04J14/0267 ,  H04L45/62

    摘要： A frequency assignment method for selecting a frequency width used on a route connecting between a start point and an end point when the start point and the end point of an optical signal are supplied in a photonic network including an optical node that includes an optical switch for switching the optical signal without electrically terminating the optical signal is disclosed. The frequency assignment method includes steps of: obtaining a correlation amount of use state of wavelength or frequency between adjacent links by referring to a route calculation result; determining a fixed frequency width or variable frequency width to be set for a communication route based on the correlation amount; and assigning the fixed frequency width or the variable frequency width on the route.

    摘要翻译： 一种频率分配方法，用于在包括光学节点的光子网络中提供在光信号的起始点和终点处的开始点和终点之间连接的路线上使用的频率宽度，该光子网络包括光学开关 公开了在不电气端接光信号的情况下切换光信号。 频率分配方法包括以下步骤：通过参考路线计算结果获得相邻链路之间的波长或频率的使用状态的相关量; 基于相关量确定要为通信路由设置的固定频率宽度或可变频率宽度; 并在路线上分配固定频率宽度或可变频率宽度。