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11.发明授权Adding link aggregation group to hitless protection in packet switched networks 有权将分组交换网络中的链路聚合组添加到无中断保护公开(公告)号：US09537757B2
公开(公告)日：2017-01-03
申请号：US14454957
申请日：2014-08-08
Applicant: NEC Laboratories America, Inc.
Inventor： Junqiang Hu , Yoshinobu Ooto , Kazuo Takagi , Yoshiaki Aono , Ting Wang
IPC: H04L12/707 , H04L12/735 , H04L12/709 , H04L12/703 , H04L12/801
CPC classification number: H04L45/22 , H04L45/1283 , H04L45/245 , H04L45/28 , H04L47/34 , Y02D50/30
Abstract: A method is provided for traffic aggregation in a hitless protected packet switched network having source and destination nodes. The method includes enabling a working path and a protecting path between the source and destination nodes. The working path is non-overlapping with respect to the protecting path. The method includes generating, using a processor, internal marker packets at working and protecting input ports of the source nodes. Each market packet represents a respective marker time period. The method includes transmitting the marker packets to working and protecting output ports of the source nodes, by the working and protecting input ports of the source nodes. The method includes selectively aggregating, at each of the working and protecting output ports of the source nodes, hitless traffic sent from different working and protecting inputs ports of the source nodes to provide an aggregated flow there from, responsive to the marker packets.
Abstract translation: 提供了一种用于具有源和目的地节点的无中继保护分组交换网络中的业务聚合的方法。 该方法包括启用源节点和目的节点之间的工作路径和保护路径。 工作路径与保护路径不重叠。 该方法包括在工作和保护源节点的输入端口时生成使用处理器的内部标记分组。 每个市场包代表相应的标记时间段。 该方法包括通过工作和保护源节点的输入端口，将标记数据包发送到工作和保护源节点的输出端口。 该方法包括在源节点的每个工作和保护输出端口选择性地聚合来自源节点的不同工作和保护输入端口的无中断业务，从而响应于标记分组来提供聚合流。
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公开(公告)号：US09059888B2
公开(公告)日：2015-06-16
申请号：US13767181
申请日：2013-02-14
Applicant: NEC Laboratories America, Inc.
Inventor： Philip Nan Ji , Ting Wang , Yoshiaki Aono
CPC classification number: H04L27/2697 , H04J14/0269 , H04J14/0298 , H04L27/2649 , H04Q2011/0032
Abstract: An optical network includes receiving inter-rack traffics from transmitter racks, converting by transmitters the inter-rack traffics to respective wavelength division multiplexing WDM optical signals, receiving and routing by a cyclic interleaver the optical signals from the transmitters to output ports in a cyclic manner, converting respective routed optical signals from the cyclic interleaver into respective electrical signals, and demodulating OFDM formats from respective converted optical signals containing signals for respective receiver racks.
Abstract translation: 光网络包括从发射机机架接收机架间业务，由发射机将机架间业务转换为相应的波分复用WDM光信号，通过循环交织器将光信号从发射机以循环方式传送到输出端口 将来自循环交织器的各个路由光信号转换成各自的电信号，以及从包含相应接收机机架的信号的各个转换的光信号中解调OFDM格式。
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13.发明授权Optimal combined 2R/3R regenerators placement method for line network topologies in optical WDM networks 有权光学WDM网络中线路网络拓扑的最佳组合2R / 3R再生器放置方法公开(公告)号：US08879906B2
公开(公告)日：2014-11-04
申请号：US13644470
申请日：2012-10-04
Applicant: NEC Laboratories America, Inc.
Inventor： Ankitkumar N. Patel , Philip Nan Ji , Ting Wang , Yoshiaki Aono
IPC: H04B17/00 , H04J14/00 , H04J14/02 , H04B10/079 , H04B10/299
CPC classification number: H04J14/02 , H04B10/0793 , H04B10/07953 , H04B10/299 , H04J14/021 , H04J14/0227 , H04J14/0271
Abstract: A method for optimal combined 2R/3R regenerators placement for optical transmission includes determining an optimal placement of multiple 2R and 3R regenerators that minimizes bit error rate BER at a destination node, determining an optimal number of the 2R and 3R regenerators that minimizes a total cost while satisfying the BER at the destination node, and determining an optimal placement of the 2R and 3R regenerators along a route in the optical transmission.
Abstract translation: 用于光传输的最佳组合的2R / 3R再生器放置的方法包括确定最小化目的地节点处的误码率BER的多个2R和3R再生器的最佳布置，确定最小化总成本的2R和3R再生器的最佳数量 同时满足目的地节点处的BER，并且确定2R和3R再生器沿着光传输中的路由的最佳放置。
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公开(公告)号：US20140056371A1
公开(公告)日：2014-02-27
申请号：US13767181
申请日：2013-02-14
Applicant: NEC Laboratories America, Inc.
Inventor： Philip Nan Ji , Ting Wang , Yoshiaki Aono
IPC: H04L27/26
CPC classification number: H04L27/2697 , H04J14/0269 , H04J14/0298 , H04L27/2649 , H04Q2011/0032
Abstract: An optical network includes receiving inter-rack traffics from transmitter racks, converting by transmitters the inter-rack traffics to respective wavelength division multiplexing WDM optical signals, receiving and routing by a cyclic interleaver the optical signals from the transmitters to output ports in a cyclic manner, converting respective routed optical signals from the cyclic interleaver into respective electrical signals, and demodulating OFDM formats from respective converted optical signals containing signals for respective receiver racks.
Abstract translation: 光网络包括从发射机机架接收机架间业务，由发射机将机架间业务转换为相应的波分复用WDM光信号，通过循环交织器将光信号从发射机以循环方式传送到输出端口 将来自循环交织器的各个路由光信号转换成各自的电信号，以及从包含相应接收机机架的信号的各个转换的光信号中解调OFDM格式。
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Patent Agency Ranking
15.发明申请Spectrum Aware Rate Selection Procedure for Optical Channels in Flexible WDM Networks 有权灵活WDM网络中光通道的频谱感知速率选择过程公开(公告)号：US20140016939A1
公开(公告)日：2014-01-16
申请号：US13939608
申请日：2013-07-11
Applicant: NEC Laboratories America, Inc.
Inventor： Ankitkumar Patel , Philip Ji , Daisuke Taniguchi , Yoshiaki Aono
IPC: H04J14/02
CPC classification number: H04J14/0227 , H04J14/0224 , H04J14/0257 , H04J14/026 , H04J14/0267
Abstract: A spectrum-aware rate selection includes finding a set of channels based on spectrum availability information such that the total required spectrum for a requested data rate of a traffic demand is minimized.
Abstract translation: 频谱感知速率选择包括基于频谱可用性信息找到一组信道，使得对业务需求的请求数据速率的总需求频谱最小化。
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16.发明授权Spectrum aware rate selection procedure for optical channels in flexible WDM networks 有权灵活WDM网络中光通道的频谱感知速率选择过程公开(公告)号：US09054829B2
公开(公告)日：2015-06-09
申请号：US13939608
申请日：2013-07-11
Applicant: NEC Laboratories America, Inc.
Inventor： Ankitkumar Patel , Philip Ji , Daisuke Taniguchi , Yoshiaki Aono
IPC: H04J14/02
CPC classification number: H04J14/0227 , H04J14/0224 , H04J14/0257 , H04J14/026 , H04J14/0267
Abstract: A spectrum-aware rate selection includes finding a set of channels based on spectrum availability information such that the total required spectrum for a requested data rate of a traffic demand is minimized.
Abstract translation: 频谱感知速率选择包括基于频谱可用性信息找到一组信道，使得对业务需求的请求数据速率的总需求频谱最小化。
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公开(公告)号：US08995832B2
公开(公告)日：2015-03-31
申请号：US13855104
申请日：2013-04-02
Applicant: NEC Laboratories America, Inc. , NEC Corporation
Inventor： Philip N. Ji , Yoshiaki Aono , Ting Wang
CPC classification number: H04J14/0212 , H04J14/0204 , H04J14/0205 , H04J14/0206 , H04J14/0217
Abstract: The present principles are directed to a transponder aggregator-based optical loopback in a multi-degree colorless, directionless, contention-less, reconfigurable optical add/drop multiplexer. The multiplexer includes a reconfigurable optical add/drop multiplexer section for performing connect operations for wavelength division multiplexing signals among all degrees. The section has a plurality of subsections. Each of the subsections corresponds to a respective one of the degrees and has an optical separator at an input side and an optical combiner at an output side. The multiplexer further includes a transponder aggregator section having a split-and-select switch-based transponder aggregator. The multiplexer also includes an optical line loopback having a connection path between the optical separator at the input side and the optical combiner at the output side of at least one of the subsections.
Abstract translation: 本原理涉及在多度无色，无方向，无竞争的可重配置的光分插复用器中的基于转发器聚合器的光环回。 复用器包括可重配置的光分插复用器部分，用于在所有度之间执行波分复用信号的连接操作。 该部分有多个子部分。 每个子部分对应于相应的度数，并且在输入侧具有光学分离器，在输出侧具有光学合成器。 多路复用器还包括具有分组选择基于交换机的应答器聚合器的转发器聚合器部分。 复用器还包括具有在输入侧的光学分离器与至少一个子部分的输出侧的光学组合器之间的连接路径的光学线路环回。
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18.发明申请Eliminating External Buffer for Hitless Protection by Using Channelized Flow Control 审中-公开通过使用信道化流控制消除外部缓冲器进行无源保护公开(公告)号：US20150085647A1
公开(公告)日：2015-03-26
申请号：US14325242
申请日：2014-07-07
Applicant: NEC Laboratories America, Inc.
Inventor： Junqiang Hu , Yoshinobu Ooto , Kazuo Takagi , Yoshiaki Aono , Ting Wang
IPC: H04L12/24 , H04L12/703 , H04L12/707
CPC classification number: H04L45/28 , H04L45/22 , H04L45/245 , H04L47/266 , H04L47/30 , Y02D50/30
Abstract: A packet switched communication system to support hitless protection includes a packet processor; a traffic manager with a buffer sized to compensate a maximum skew of each hitless path pair of a working path and a protecting path; and a hitless processor positioned between the packet processor and the traffic manager, wherein an interface between hitless processor and traffic manager has flow control to start or stop (XON/XOFF) traffic.
Abstract translation: 支持无中断保护的分组交换通信系统包括分组处理器; 具有缓冲器的流量管理器，其大小用于补偿工作路径和保护路径的每个无中断路径对的最大偏移; 以及位于分组处理器和流量管理器之间的无中断处理器，其中无中断处理器和流量管理器之间的接口具有启动或停止（XON / XOFF）流量的流量控制。
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19.发明申请公开(公告)号：US20130077963A1
公开(公告)日：2013-03-28
申请号：US13628460
申请日：2012-09-27
Applicant: NEC LABORATORIES AMERICA, INC.
Inventor： Eduardo Mateo , Yoshiaki Aono
IPC: H04B10/2543
CPC classification number: H04B10/2543 , H04B10/2531
Abstract: A method for nonlinearity compensation for an optical transmission link includes determining a dispersion effect of a transmission link; applying a phase conjugation to the transmission link, the phase conjugation responsive to an input wave over the transmission link and providing a conjugated version of the input wave; and configuring an optimum equivalent link responsive to the phase conjugation after the transmission link to compensate for a non-linear dispersion effect from said transmission link
Abstract translation: 一种用于光传输链路的非线性补偿的方法包括确定传输链路的色散效应; 对传输链路应用相位共轭，响应于传输链路上的输入波并提供输入波的共轭版本的相位共轭; 以及响应于所述传输链路之后的相位共轭，配置最佳等效链路，以补偿来自所述传输链路的非线性色散效应
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