公开(公告)号：US08964581B2

公开(公告)日：2015-02-24

申请号：US13395747

申请日：2010-09-13

申请人： Hidehiko Takara ,  Masahiko Jinno ,  Atsushi Watanabe ,  Kozicki Bartlomiej ,  Yoshiaki Sone ,  Akira Hirano ,  Takafumi Tanaka

发明人： Hidehiko Takara ,  Masahiko Jinno ,  Atsushi Watanabe ,  Kozicki Bartlomiej ,  Yoshiaki Sone ,  Akira Hirano ,  Takafumi Tanaka

IPC分类号： H04B10/079 ,  H04L12/42 ,  H04J14/02 ,  H04L12/437

CPC分类号： H04L12/42 ,  H04B10/0793 ,  H04B10/07953 ,  H04J14/02 ,  H04J14/0204 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0221 ,  H04J14/0224 ,  H04J14/0254 ,  H04J14/0257 ,  H04J14/026 ,  H04J14/0267 ,  H04J14/0268 ,  H04J14/0269 ,  H04J14/0295 ,  H04L12/437

摘要： A bandwidth variable communication method is provided that enables effective use of frequency bandwidths in which the bit rate is constant in every optical path. The bandwidth variable communication method includes, when a network management apparatus sets or changes an optical path that passes through plural communication apparatuses, measuring or obtaining an optical signal quality deterioration amount in a route of the optical path; selecting a modulation format in which a spectrum bandwidth is the narrowest from among modulation formats by which transmission is available on conditions of the optical signal quality deterioration amount and a desired bit rate B (bit/s); and exchanging control information between the network management apparatus and a control unit of each communication apparatus on the optical path route. A bandwidth variable communication apparatus receives the control information, and changes a passband based on the received control information.

摘要翻译： 提供了一种带宽可变通信方法，其能够有效地使用其中每个光路中的比特率是恒定的频率带宽。 带宽可变通信方法包括：当网络管理装置设置或改变通过多个通信装置的光路时，测量或获得光路中的光信号质量恶化量; 在光信号质量恶化量和期望比特率B（比特/秒）的条件下，从调制格式中选择其中频谱带宽最窄的调制格式。 并且在光路径上的网络管理装置与各通信装置的控制单元之间交换控制信息。 带宽可变通信装置接收控制信息，并根据接收到的控制信息改变通带。

公开(公告)号：US08929733B2

公开(公告)日：2015-01-06

申请号：US13736237

申请日：2013-01-08

申请人： Futurewei Technologies, Inc.

发明人： Greg Bernstein ,  Young Lee

IPC分类号： H04B10/00 ,  H04J14/02 ,  H04L12/751 ,  H04L12/723 ,  H04L12/721 ,  H04Q11/00

CPC分类号： H04L45/507 ,  H04J14/02 ,  H04J14/0212 ,  H04J14/0238 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0268 ,  H04J14/0269 ,  H04J14/0273 ,  H04L45/02 ,  H04L45/026 ,  H04L45/50 ,  H04L45/62 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0077 ,  H04Q2011/0086

摘要： A network component comprising a generalized multiprotocol label switching (GMPLS) control plane controller configured to implement a method comprising transmitting a message to at least one adjacent control plane controller, wherein the message comprises a Type-Length-Value (TLV) indicating Routing and Wavelength Assignment (RWA) information, wherein the TLV comprises a Node Attribute TLV, a Link Set TLV, or both, and wherein the TLV further comprises at least one sub-TLV indicating additional RWA information. A method comprising communicating an open shortest path first (OSPF) link state advertisement (LSA) message comprising a TLV with at least one sub-TLV to a GMPLS control plane controller, wherein the TLV comprises a Node Attribute TLV, a Link Set TLV, or both, and wherein the TLV further comprises at least one sub-TLV indicating RWA information.

摘要翻译： 一种网络组件，包括广泛多协议标签交换（GMPLS）控制平面控制器，其被配置为实现包括向至少一个相邻控制平面控制器发送消息的方法，其中所述消息包括指示路由和波长的类型长度值（TLV） 分配（RWA）信息，其中所述TLV包括节点属性TLV，链路集TLV或两者，并且其中所述TLV还包括指示附加RWA信息的至少一个子TLV。 一种方法，包括将包括具有至少一个子TLV的TLV的开放式最短路径优先（OSPF）链路状态通告（LSA）消息）传送到GMPLS控制平面控制器，其中所述TLV包括节点属性TLV，链路集TLV， 或两者，并且其中所述TLV还包括指示RWA信息的至少一个子TLV。

公开(公告)号：US08902788B2

公开(公告)日：2014-12-02

申请号：US13347817

申请日：2012-01-11

申请人： Thyaga Nandagopal

发明人： Thyaga Nandagopal

IPC分类号： H04W4/00

CPC分类号： H04J14/0284 ,  H04J14/0226 ,  H04J14/0254 ,  H04J14/0257 ,  H04J14/0269 ,  H04L41/0833 ,  H04L45/62 ,  H04L45/64 ,  Y02D30/20

摘要： A method and system for energy-efficient routing of IP packets in which ingress traffic is forward from ingress nodes directly to source dominator nodes without address destination processing such that related address processing elements may be avoided in the ingress nodes. The source dominator nodes perform address destination processing and forward the packets to destination dominator nodes proximate the destination node.

摘要翻译： IP分组的节能路由的方法和系统，其中入口业务从入节点直接转发到源主节点节点而不进行地址目的地处理，使得可以在入节点中避免相关的地址处理单元。 源主导节点执行地址目的地处理，并将数据包转发到目标节点附近的目标主导节点。

公开(公告)号：US08861957B2

公开(公告)日：2014-10-14

申请号：US13695007

申请日：2010-04-28

申请人： Fabio Cavaliere ,  Luca Giorgi ,  Antonio D'Errico ,  Renato Grosso

发明人： Fabio Cavaliere ,  Luca Giorgi ,  Antonio D'Errico ,  Renato Grosso

IPC分类号： H04J14/00 ,  H04J14/02

CPC分类号： H04J14/0282 ,  H04J14/0202 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0269

摘要： An optical access network comprises L wavelength division multiplexed access sub-networks. Each of the wavelength division multiplexed access sub-networks is arranged to use a set of wavelength channels. M optical line termination apparatus, each receive traffic from a respective operator network and output traffic on the wavelength channels. A wavelength routing apparatus comprises M sets of first ports and L second ports. Each set of first ports connects to a respective one of the optical line termination apparatus and each second port connects to an optical link of a respective one of the wavelength division multiplexed access sub-networks. The wavelength routing apparatus is arranged to route the set of wavelength channels between the sets of first ports and the second ports and to route different wavelength channels of the same wavelength to different ones of the second ports.

摘要翻译： 光接入网络包括L波分复用接入子网。 每个波分多路复用接入子网被配置为使用一组波长信道。 M光线路终端装置，各自从相应的运营商网络接收业务并在波长信道上输出业务。 波长路由装置包括M组第一端口和L个第二端口。 每组第一端口连接到光线路终端设备中的相应一个，并且每个第二端口连接到波分复用接入子网中相应一个的光链路。 波长路由设备被布置为在第一端口组和第二端口之间路由该组波长信道，并且将相同波长的不同波长信道路由到不同的第二端口。

公开(公告)号：US08831424B2

公开(公告)日：2014-09-09

申请号：US12432765

申请日：2009-04-30

申请人： Rosanna Pastorelli ,  Stefano Piciaccia ,  Alberto Tanzi ,  Eliana Silvia Vercelli

发明人： Rosanna Pastorelli ,  Stefano Piciaccia ,  Alberto Tanzi ,  Eliana Silvia Vercelli

IPC分类号： H04B14/00 ,  H04B10/00 ,  H04J14/02 ,  H04B10/079 ,  H04Q11/00

CPC分类号： H04B10/0795 ,  H04B10/0793 ,  H04J14/0227 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0271 ,  H04Q11/0062 ,  H04Q2011/0073 ,  H04Q2011/0086

摘要： In an optical communication network that includes a plurality of interconnected network nodes, a method includes storing in each network node, and for each communication channel that traverses the node, one or more impairment margins of respective impairments that affect the communication channel. A potential communication channel that traverses a subset of the nodes in the network is identified. A quality of the potential communication channel is evaluated by processing the impairment margins stored in the nodes in the subset.

摘要翻译： 在包括多个互连网络节点的光通信网络中，一种方法包括在每个网络节点中以及对于遍历节点的每个通信信道存储影响通信信道的各个损伤的一个或多个损伤余量。 识别遍历网络中节点子集的潜在通信信道。 潜在通信信道的质量通过处理存储在子集中的节点中的减值裕度来评估。

公开(公告)号：US08811817B2

公开(公告)日：2014-08-19

申请号：US13499904

申请日：2010-08-04

申请人： Masahiro Sakauchi ,  Shigeru Nakamura

发明人： Masahiro Sakauchi ,  Shigeru Nakamura

IPC分类号： H04J14/00

CPC分类号： H04J14/02 ,  H04J14/0204 ,  H04J14/0206 ,  H04J14/0212 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0257 ,  H04J14/0269 ,  H04J14/0283 ,  H04J14/0284 ,  H04J14/0295

摘要： Restrictions, due to wavelength paths which are non-alternative combinations of wavelengths and paths, are solved. An optical-signal-transmission device comprises M optical-output means outputting optical signals having different wavelengths; optical-switch means having M input ports respectively connected to the optical-output means and output ports, and switching connections between the input ports and the output ports; and wavelength-multiplexing means having M acceptance ports respectively connected to the output ports, N forward ports switchably connected to the acceptance ports corresponding to wavelengths of optical signals inputted to the acceptance ports and transmitting multiplexed-optical signals corresponding to the optical signals accepted by the acceptance ports, wherein when Y particular input ports of the input ports are connected to one particular output port of the output ports, the switch means combines Y optical signals inputted to the particular input ports to generate a combined signal, and outputs the combined signal to the particular output port.

摘要翻译： 解决了由于波长路径和波长路径不可替代组合引起的限制。 光信号传输装置包括输出具有不同波长的光信号的M个光输出装置; 具有分别连接到光输出装置和输出端口的M个输入端口以及在输入端口和输出端口之间切换连接的光开关装置; 以及具有分别连接到输出端口的M个接收端口的波长多路复用装置，可转换地连接到接收端口的N个前向端口，其对应于输入到接收端口的光信号的波长，并发送与由接收端口接收的光信号相对应的多路复用光信号 接收端口，其中当输入端口的特定输入端口Y连接到输出端口的一个特定输出端口时，开关装置将输入到特定输入端口的Y个光信号组合以产生组合信号，并将组合信号输出到 特定的输出端口。

公开(公告)号：US08781270B2

公开(公告)日：2014-07-15

申请号：US13726831

申请日：2012-12-26

申请人： Fujitsu Limited

发明人： Hisashi Taketomi ,  Yasuko Nozu ,  Kohei Ichimura

IPC分类号： G02B6/26

CPC分类号： G02B6/3588 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0217 ,  H04J14/0269 ,  H04L41/082 ,  H04L41/0853 ,  H04L41/22 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0073

摘要： An optical cross-connect apparatus includes: a plurality of switch units connected to each other via input ports and output ports; a storage unit to store a setting table in which output port information and corresponding input port information are associated together and registered for each optical signal such that the output port information identifies a specific output port, in the output ports, that outputs the optical signal and the input port information identifies a specific input port, in the input ports, that inputs the optical signal; a setting processor to set each switch unit in the plurality of switch units according to the setting table so as to set a wavelength for each optical signal that is input via the input ports or output via the output ports; and an update processor to update the content of the setting table in response to external input.

摘要翻译： 光交叉连接装置包括：经由输入端口和输出端口彼此连接的多个开关单元; 存储单元，用于存储设置表，其中输出端口信息和相应的输入端口信息相关联并为每个光信号注册，使得输出端口信息识别在输出端口中输出光信号的特定输出端口;以及 输入端口信息识别在输入端口中输入光信号的特定输入端口; 设置处理器，根据设置表设置多个开关单元中的每个开关单元，以便通过输入端口设置经由输入端口输入或输出的每个光信号的波长; 以及响应于外部输入来更新设置表的内容的更新处理器。

公开(公告)号：US08693880B2

公开(公告)日：2014-04-08

申请号：US12992167

申请日：2009-05-22

申请人： Masahiro Sakauchi ,  Shigeru Nakamura ,  Yutaka Urino ,  Itaru Nishioka ,  Kiyoshi Fukuchi

发明人： Masahiro Sakauchi ,  Shigeru Nakamura ,  Yutaka Urino ,  Itaru Nishioka ,  Kiyoshi Fukuchi

IPC分类号： H04J14/02 ,  H04B10/08

CPC分类号： H04Q11/0005 ,  H04J14/0204 ,  H04J14/0209 ,  H04J14/021 ,  H04J14/0212 ,  H04J14/0213 ,  H04J14/0217 ,  H04J14/0219 ,  H04J14/0254 ,  H04J14/0257 ,  H04J14/0258 ,  H04J14/0269 ,  H04J14/0284 ,  H04J14/0297 ,  H04Q11/0062 ,  H04Q2011/0015 ,  H04Q2011/0016 ,  H04Q2011/0024 ,  H04Q2011/0052 ,  H04Q2011/0073 ,  H04Q2011/0079 ,  H04Q2213/1301 ,  H04Q2213/13295

摘要： A wavelength path communication node apparatus includes a wavelength path demultiplexer (321) which demultiplexes branched optical signals input to wavelength multiplexing ports into wavelength path signals, and outputs the wavelength path signals from wavelength demultiplexing ports corresponding to the respective wavelengths, a wavelength path multiplexer (322) which outputs wavelength path signals input to wavelength demultiplexing ports from wavelength multiplexing ports corresponding to the wavelengths of the wavelength path signals, a plurality of transponders (331) each of which converts a wavelength path signal input to a wavelength path transmission port into a client transmission signal to transmit the client transmission signal, and converts a received client reception signal into a wavelength path signal of a wavelength to output the wavelength path signal from a wavelength path reception port, a demultiplexing system optical matrix switch (323) which switches and connects the wavelength demultiplexing ports of the wavelength path demultiplexer and the wavelength path transmission ports of the transponders, and a multiplexing system optical matrix switch (324) which switches and connects the wavelength demultiplexing ports of the wavelength path multiplexer and the wavelength path reception ports of the transponders.

摘要翻译： 波长路径通信节点装置包括波长路径解复用器（321），其将输入到波长多路复用端口的分支光信号解复用为波长路径信号，并将波长路径信号从对应于各波长的波长解复用端口输出，波长路径多路复用器 322），其从对应于波长路径信号的波长的波长多路复用端口输出输入到波长解复用端口的波长路径信号;多个转发器（331），每个转发器将输入到波长路径传输端口的波长路径信号转换为 客户端发送信号以发送客户端发送信号，并将所接收到的客户端接收信号转换为波长的波长路径信号，以从波长路径接收端口输出波长路径信号;解复用系统光矩阵切换器（323），其切换和 连接 波长路径解复用器的波长解复用端口和应答器的波长路径传输端口，以及多路复用系统光矩阵开关（324），其将波长路径多路复用器的波长解复用端口和波长路径多路复用器的波长路径接收端口 转发器

公开(公告)号：US20130302033A1

公开(公告)日：2013-11-14

申请号：US13944401

申请日：2013-07-17

申请人： Kotikalapudi Sriram ,  Mukul Katiyar ,  Jonathan Titchener ,  Rajender Rao Nednur ,  Anthony Vernon Walker Smith

发明人： Kotikalapudi Sriram ,  Mukul Katiyar ,  Jonathan Titchener ,  Rajender Rao Nednur ,  Anthony Vernon Walker Smith

IPC分类号： H04Q11/00

CPC分类号： H04Q11/0005 ,  H04J14/0221 ,  H04J14/0246 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0269 ,  H04J14/0283 ,  H04J14/0284

摘要： In an automatically switched optical network, the wavelengths are assigned to optical path based on their intrinsic physical performance and on the current network operating parameters. The wavelength performance information is organized in binning tables, based primarily on the wavelength reach capabilities. A network topology database provides the distance between the nodes of the network, which is used to determine the length of the optical path. Other network operating parameters needed for wavelength selection are also available in this database. Once a bin corresponding to the path length is identified in the binning table, the wavelength for that path is selected based on length only, or based on the length and one or more additional parameters. The optical path performance is estimated for the selected wavelength, and the search continues if the estimated path performance is not satisfactory. Several available wavelengths are searched and of those, the wavelength that is most used along the optical path in consideration or alternatively network-wide is selected and assigned. This method helps minimize wavelength fragmentation. The binning tables may have various granularities, and may be organized by reach, or by reach, wavelength spacing, the load on the respective optical path, the fiber type, etc.

摘要翻译： 在自动切换光网络中，根据其固有物理性能和当前网络运行参数将波长分配给光路。 波长性能信息主要基于波长到达能力组织在合并表中。 网络拓扑数据库提供网络节点之间的距离，用于确定光路长度。 波长选择所需的其他网络运行参数也可在此数据库中使用。 一旦在分箱表中识别出对应于路径长度的仓，则该路径的波长仅基于长度，或者基于长度和一个或多个附加参数来选择。 对于所选择的波长估计光路性能，如果估计的路径性能不令人满意，则搜索继续。 搜索几种可用的波长，并且选择和分配在考虑中或最广泛的光路中最常使用的波长。 该方法有助于最小化波长碎片。 分箱表可以具有各种粒度，并且可以通过到达或到达波长间隔，各个光路上的负载，光纤类型等来组织。

公开(公告)号：US08571415B1

公开(公告)日：2013-10-29

申请号：US10097901

申请日：2002-03-13

申请人： Douglas Clayton Rider ,  James Craig Slezak ,  Anthony Vernon Walker Smith

发明人： Douglas Clayton Rider ,  James Craig Slezak ,  Anthony Vernon Walker Smith

IPC分类号： H04B10/29

CPC分类号： H04Q11/0005 ,  H04J14/0221 ,  H04J14/0227 ,  H04J14/0246 ,  H04J14/0257 ,  H04J14/0267 ,  H04J14/0268 ,  H04J14/0269 ,  H04J14/0283 ,  H04J14/0284

摘要： The method of placing regenerators along a trail connecting a source network node with a destination network node of an automatically switched optical network first identifies N tentative regeneration sites and n+1 optical paths along the trail. Wavelengths are assigned to each optical path; and the performance of the trail is assessed based on regenerator placement data and wavelength assignment data. The data identifying this regenerator path, namely regenerator placement data, the wavelength assignment data and the performance parameter of the trail are stored in a list, if the performance parameter is over a threshold. Selection of the tentative sites is revised whenever the initial placement fails due to a reach problem, a wavelength-blocking problem or a path quality problem. If the time for revising the initial placement, or the cost of a regenerator path is unacceptable, the regenerator path is abandoned and a further placement is initiated. Next, a further regenerator placement is attempted for the same trail using n+1 regenerators, and the further regenerator path is stored in the list, etc. Still further, regenerator placement is attempted for another trail, and so on, until a specified number of regenerator paths are stored in the list.

摘要翻译： 沿着将源网络节点与自动交换光网络的目的地网络节点连接的路径放置再生器的方法首先识别沿着路径的N个暂定再生站点和n + 1个光路径。 波长分配给每个光路; 并且基于再生器放置数据和波长分配数据来评估跟踪的性能。 如果性能参数超过阈值，则识别该再生器路径的数据，即再生器放置数据，波长分配数据和轨迹的性能参数被存储在列表中。 由于遇到问题，波长阻塞问题或路径质量问题，首次放置失败时，修改临时站点的选择。 如果修改初始放置的时间或再生器路径的成本是不可接受的，则再生器路径被放弃，并且开始进一步的放置。 接下来，使用n + 1个再生器尝试对于相同轨迹的进一步再生器放置，并且进一步的再生器路径存储在列表等中。此外，尝试再生器放置用于另一条路径，依此类推，直到指定的数字 的再生器路径存储在列表中。