公开(公告)号：EP2403172A2

公开(公告)日：2012-01-04

申请号：EP11158983.4

申请日：2011-03-21

申请人： Fujitsu Limited

发明人： Takatsu, Kazuo ,  Takeguchi, Koji

IPC分类号： H04J14/02

CPC分类号： H04J14/0212 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0209 ,  H04J14/021

摘要： An optical add-drop multiplexer having first and second routes includes: an optical cross connect (22, 22#1, 22#2) ; a first multiplexer (23W) optically coupled to a plurality of output ports of the optical cross connect; a second multiplexer (23E) optically coupled to a plurality of other output ports of the optical cross connect; a first wavelength selective switch (24W) to generate a first WDM optical signal including an optical signal output from the first multiplexer and to guide the first WDM optical signal to the first route; and a second wavelength selective switch (24E) to generate a second WDM optical signal including optical signal output from the second multiplexer and to guide the second WDM optical signal to the second route.

摘要翻译： 具有第一和第二路由的光分插复用器包括：光交叉连接（22,22＃1，22＃2）; 第一多路复用器（23W），光耦合到所述光交叉连接的多个输出端口; 第二多路复用器（23E），其光学耦合到所述光学交叉连接的多个其他输出端口; 第一波长选择开关（24W），用于产生包括从第一多路复用器输出的光信号的第一WDM光信号并将第一WDM光信号引导到第一路由; 和第二波长选择开关（24E），用于产生包括从第二多路复用器输出的光信号的第二WDM光信号并将第二WDM光信号引导到第二路由。

公开(公告)号：EP2244398A2

公开(公告)日：2010-10-27

申请号：EP10166803.6

申请日：2003-03-20

申请人： FUJITSU LIMITED

发明人： Odate, Satoru ,  Kinoshita, Susumu ,  Takeguchi, Koji ,  Titan, Cechan

IPC分类号： H04J14/02 ,  H04B10/08

CPC分类号： H04B10/275 ,  H04B10/035 ,  H04B10/0771 ,  H04B10/0773 ,  H04B10/27 ,  H04B2210/071 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/029 ,  H04J14/0297

摘要： A flexible open ring optical network includes a plurality of nodes connected by twin or other suitable optical rings. Each node is operable to passively add and passively drop traffic from the rings. The nodes may include a transport element for each ring. The transport elements include an optical splitter element and an optical combiner element. The optical splitter element is operable to passively combine an add signal including local add traffic and a first transport signal including ingress traffic from a coupled optical 4 ring to generate a second transport signal including egress traffic tor transmission on the coupled optical ring. The optical combine element is coupled to the optical splitter element and is operable to passively split a third transport signal including the ingress traffic to generate a drop signal including local drop traffic and a fourth transport signal including the ingress traffic. Protection switching may be provided by selectively operable switches disposed in and distributed around the rings.

摘要翻译： 柔性开环光网络包括通过双或其它合适的光环连接的多个节点。 每个节点都可以被动地添加和被动地从环中删除流量。 节点可以包括用于每个环的传输元件。 传输元件包括光分路器元件和光组合器元件。 光分路器元件可操作地被动地组合包括本地添加业务的添加信号和包括来自耦合光4环的入口业务的第一传输信号，以产生包括耦合光环上的出站业务传输的第二传输信号。 光学组合元件耦合到光分路器元件，并且可操作地被动地分裂包括入口业务的第三传输信号，以产生包括本地丢弃业务的丢弃信号和包括入口业务的第四传输信号。 可以通过设置在环中并分布在环周围的选择性操作的开关来提供保护切换。

公开(公告)号：EP1345346A3

公开(公告)日：2006-03-22

申请号：EP03005400.1

申请日：2003-03-13

申请人： FUJITSU LIMITED

发明人： Gumaste, Ashwin Anil ,  Kinoshita, Susumu ,  Takeguchi, Koji

IPC分类号： H04J14/02

CPC分类号： H04J14/0294 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0286

摘要： A system and method for assigning a traffic channel to a wavelength in a multi-ring optical network having bifurcated work and protect wavelengths includes determining a transport direction for the traffic channel in a ring of the multi-ring optical network. An inter/intra ring type of the traffic channel is determined. The traffic channel is assigned to a wavelength in the ring based on the transport direction and the inter/intra ring type of the traffic channel. In a particular embodiment, the traffic channel may be assigned to one of an odd and even wavelength based on the transport direction and one of a high and low wavelength based on the inter/intra ring type.

公开(公告)号：EP2339770A1

公开(公告)日：2011-06-29

申请号：EP11161850.0

申请日：2003-05-21

申请人： FUJITSU LIMITED

发明人： Kinoshita, Susumu ,  Gumaste, Ashwin ,  Takeguchi, Koji

IPC分类号： H04J14/02

CPC分类号： H04J14/0293 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0208 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0283 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0092

摘要： An optical network includes a plurality of add/drop nodes coupled to an optical ring. Each node is operable to passively add and drop traffic to and from the optical ring. The optical network may also include a plurality of subnets with a plurality of add/drop nodes coupled to each subnet. The network may also include a plurality of gateway nodes. Each gateway nodes is coupled to the optical ring at a boundary between neighboring subnets and is operable to selectively pass and terminate wavelength between subnets to allow wavelength reuse in the subnets and to provide protection switching.

摘要翻译： 光网络包括耦合到光环的多个分插节点。 每个节点可操作地被动地添加和丢弃来自光环的业务。 光网络还可以包括具有耦合到每个子网的多个分插节点的多个子网。 该网络还可以包括多个网关节点。 每个网关节点在相邻子网之间的边界处耦合到光环，并且可操作以选择性地通过并终止子网之间的波长，以允许子网中的波长重用并提供保护切换。

公开(公告)号：EP1501225A3

公开(公告)日：2009-08-26

申请号：EP04016821.3

申请日：2004-07-16

申请人： FUJITSU LIMITED

发明人： Aoki, Yasuhiko ,  Takeguchi, Koji ,  Kinoshita, Susumu

IPC分类号： H04J14/02

CPC分类号： H04J14/0297 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/022 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0286 ,  H04J14/0294 ,  H04J14/0295

摘要： A system for communicating optical traffic between ring networks includes a first optical ring network and a second optical ring network. Each optical ring network is operable to communicate optical traffic comprising a plurality of wavelengths. The system includes a first ring interconnect (RIC) node and a second RIC node, and each RIC node is coupled to the first and second optical ring networks. The first RIC node is operable to communicate optical traffic between the first and second optical ring networks, and the second RIC node is operable to communicate optical traffic between the first and second optical ring networks when the first RIC node is unable to communicate optical traffic between the first and second optical ring networks. The second RIC node may be operable to determine when the first RIC node is unable to communicate optical traffic between the first and second optical ring networks.

公开(公告)号：EP1367753A2

公开(公告)日：2003-12-03

申请号：EP03006299.6

申请日：2003-03-24

申请人： FUJITSU LIMITED

发明人： Tian, Cechan ,  Kinoshita, Susumu ,  Takeguchi, Koji ,  Odate, Satoru

IPC分类号： H04J14/02 ,  H04B10/08

CPC分类号： H04J14/0291 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283

摘要： The method and system for testing during operation of an open ring network includes opening a ring of the network at the node. Traffic circulating on the ring is dropped in the node to a monitoring element prior to or at the opening of the ring in the node. At the monitoring element, a signal received from the ring is tested. During tested and while the ring is open, traffic continues to be communicated between each node on at least one of the ring or a second ring each connecting the nodes of the network.

摘要翻译： 一个开放的环形网络的外科手术过程中用于测试的方法和系统包括：在所述节点处打开所述网络的环。 流量在环上循环是之前或在环中的节点的开口落入节点的监视元件。 在监测元件，接收到的信号从所述环被测试。 在测试和而所述环是打开的，交通继续各节点之间传送在环中的至少一个或每一个连接网络的节点的第二环。

公开(公告)号：EP1349309A2

公开(公告)日：2003-10-01

申请号：EP03006739.1

申请日：2003-03-25

申请人： FUJITSU LIMITED

发明人： Kinoshita, Susumu ,  Takeguchi, Koji ,  Odate, Satoro ,  Tian, Chean

IPC分类号： H04J14/02 ,  H04B10/08

CPC分类号： H04B10/275 ,  H04B10/035 ,  H04B10/0771 ,  H04B10/27 ,  H04B2210/071 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0219 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0241 ,  H04J14/0283 ,  H04J14/0291

摘要： A method and system for control signaling in an open ring optical network includes transmitting traffic in an optical ring. At each of a plurality of nodes along the ring, local traffic is passively added to and passively dropped from the connected ring. At each node, an ingress optical supervisory channel (OSC) signal is dropped from the ring to a managing element. An egress OSC signal is added to the ring from the managing element. The OSC signals may be in-band signal or out-of-band signals.

摘要翻译： 开环光网络中用于控制信令的方法和系统包括在光环中传输业务。 在环上的多个节点中的每个节点处，本地业务被被动地添加到被连接的环被动地被动地丢弃。 在每个节点处，入口光监控信道（OSC）信号从环向管理元件丢弃。 出口OSC信号从管理元件添加到环中。 OSC信号可以是带内信号或带外信号。

公开(公告)号：EP2660999A3

公开(公告)日：2016-11-16

申请号：EP13164265.4

申请日：2013-04-18

申请人： FUJITSU LIMITED

发明人： Togo, Toshihiro ,  Naito, Kanji ,  Katagiri, Toru ,  Takeguchi, Koji ,  Nakashima, Mineshi

IPC分类号： H04J3/14 ,  H04J3/16 ,  H04L12/24 ,  H04L12/26

CPC分类号： H04L41/0654 ,  H04J3/14 ,  H04J3/1652 ,  H04J3/1664 ,  H04J2203/006 ,  H04L41/0663 ,  H04L43/0882 ,  H04L43/16

摘要： A failure protection method of a network connecting between nodes by multiple working paths and a protection path is disclosed. An allocation bandwidth is determined to allocate to a detected path where a failure is detected in multiple paths being set to the multiple working paths, depending on the detected path. The detected path is switched from one of the multiple working paths to the protection path. Data to be transmitted by the detected path is transmitted by using the allocation bandwidth determined within an entire bandwidth of the protection path.

公开(公告)号：EP1542493A3

公开(公告)日：2015-01-28

申请号：EP04028357.4

申请日：2004-11-30

申请人： FUJITSU LIMITED

发明人： Aoki, Yasuhiko ,  Kinoshita, Susumu ,  Takeguchi, Koji

IPC分类号： H04Q11/00 ,  H04J14/02

CPC分类号： H04Q11/0005 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/021 ,  H04J14/0217 ,  H04J14/0219 ,  H04Q2011/0009 ,  H04Q2011/0015

摘要： An optical cross-connect includes multiple input ports that each receive an optical input signal and multiple output ports that each output an optical output signal. The optical cross-connect also includes a distributing amplifier associated with each input port that generates multiple copies of the input signal received at the associated input port. Furthermore, the optical cross-connect includes multiple filter units that receive a copy of one or more of the input signals from one or more of the distributing amplifiers and forward traffic in selected channels of one or more of the received copies. In addition, the optical cross-connect includes a combining amplifier associated with each output port. Each combining amplifier receives the traffic in one or more of the channels forwarded by one or more of the filter units and combines the received traffic into an output signal to be output from the associated output port.

公开(公告)号：EP2339771A2

公开(公告)日：2011-06-29

申请号：EP11161851.8

申请日：2003-05-21

申请人： FUJITSU LIMITED

发明人： Kinoshita, Susumu ,  Gumaste, Ashwin ,  Takeguchi, Koji

IPC分类号： H04J14/02

CPC分类号： H04J14/0293 ,  H04J14/0204 ,  H04J14/0205 ,  H04J14/0206 ,  H04J14/0208 ,  H04J14/021 ,  H04J14/0213 ,  H04J14/0283 ,  H04Q11/0005 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0092

摘要： An optical network includes a plurality of add/drop nodes coupled to an optical ring. Each node is operable to passively add and drop traffic to and from the optical ring. The optical network may also include a plurality of subnets with a plurality of add/drop nodes coupled to each subnet. The network may also include a plurality of gateway nodes. Each gateway nodes is coupled to the optical ring at a boundary between neighboring subnets and is operable to selectively pass and terminate wavelength between subnets to allow wavelength reuse in the subnets and to provide protection switching.

摘要翻译： 光网络包括耦合到光环的多个添加/分出节点。 每个节点都可操作地将流量从光环加入和丢弃。 光网络还可以包括具有耦合到每个子网的多个添加/分出节点的多个子网。 网络还可以包括多个网关节点。 每个网关节点在相邻子网之间的边界处耦合到光环，并且可操作以选择性地通过和终止子网之间的波长，以允许子网中的波长重用并提供保护切换。