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公开(公告)号：US11971294B2
公开(公告)日：2024-04-30
申请号：US17406022
申请日：2021-08-18
Applicant: NEC Laboratories America, Inc.
Abstract: Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) systems, methods, and structures that employ a distributed fiber optic sensor placement procedure that advantageously provides a desirable sensor coverage over a network at minimal cost.
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公开(公告)号：US11677470B2
公开(公告)日：2023-06-13
申请号：US17580572
申请日：2022-01-20
Applicant: NEC Laboratories America, Inc.
IPC: H04B10/272
CPC classification number: H04B10/272
Abstract: Aspects of the present disclosure describe a method of placement of sensors for DFOS systems, methods, and structures that advantageously employ concurrent sensing. In sharp contrast to the prior art, our inventive method—a heuristic method based on the Explore-and-Pick (EnP) algorithm, which we call a modified EnP (mEnP) method—includes two procedures. The first procedure of our mEnP method explores all possible sensing fiber routes (both linear and star-like routes) for each node in the given network. The second procedure applies a modified greedy algorithm for minimum set cover to select the minimum set of DFOS assignment to fully cover all the links in the given network.
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公开(公告)号：US09742489B2
公开(公告)日：2017-08-22
申请号：US14961236
申请日：2015-12-07
Applicant: NEC Laboratories America, Inc.
Inventor： Yawei Yin , Konstantinos Kanonakis , Philip Ji , Ting Wang , Shinya Nakamura
IPC: H04B10/038 , H04B10/032 , H04B10/079 , H04Q11/00
CPC classification number: H04B10/038 , H04B10/032 , H04B10/0793 , H04B10/0795 , H04B10/07955 , H04Q11/0005
Abstract: Systems and methods are disclosed for data communication by forming a hybrid that includes an electrical switching network with packet granularity of switching and store-and-forward forwarding services to network traffic and an optical switching network providing circuit granularity of switching and optical bypassing services to network traffic; applying local control of optical switching modules in the optical switching network with a network controller coupled to the electrical switching network, the optical switching network, and a loss-of-light detection module; and detecting loss-of-light in a failure point in the optical switching network and rerouting traffic to avoid the optical failure point.
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4.发明申请Hybrid Optical/Electrical Interconnect Network Architecture for Direct-connect Data Centers and High Performance Computers 审中-公开用于直连数据中心和高性能计算机的混合光/电互连网络架构公开(公告)号：US20150295756A1
公开(公告)日：2015-10-15
申请号：US14682382
申请日：2015-04-09
Applicant: NEC Laboratories America, Inc.
Inventor： Yawei Yin , Philip Ji , Konstantinos Kanonakis , Ting Wang
CPC classification number: H04Q11/0071 , H04L49/60 , H04Q2011/0081 , H04Q2011/0086 , H04Q2011/009
Abstract: The present invention proposes a hybrid optical/electrical network architecture for the direct-connect datacenters and HPC systems. It utilizes small scale optical switches in parallel with the electrical switching modules (e.g. the multi-port NIC) in the direct-connect electrical network (e.g 3D Torus) in order to provide optical bypassing capabilities. The optical network keeps the same topology as the electrical packet switching network, while the number of optical nodes can be equal or less than the electrical switching modules.
Abstract translation: 本发明提出了用于直连数据中心和HPC系统的混合光/电网络架构。 它利用与直接连接电网（例如3D环）中的电气开关模块（例如多端口NIC））并联的小规模光学开关，以提供光学旁路能力。 光网络保持与电子分组交换网络相同的拓扑结构，而光节点的数量可以等于或小于电气交换模块。
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5.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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Patent Agency Ranking
公开(公告)号：US11387898B2
公开(公告)日：2022-07-12
申请号：US17035551
申请日：2020-09-28
Applicant: NEC Laboratories America, Inc.
Inventor： Ting Wang , Ming-Fang Huang , Yaowen Li , Philip Ji
IPC: H04B10/079 , G01D5/353
Abstract: Aspects of the present disclosure describe optical fiber sensing systems, methods and structures disclosing a distributed optical fiber sensor network constructed on a switched optical fiber telecommunications infrastructure to detect temperatures, acoustic effects, and vehicle traffic—among others—demonstrated with a number of different network topologies.
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公开(公告)号：US09609400B2
公开(公告)日：2017-03-28
申请号：US14465122
申请日：2014-08-21
Applicant: NEC Laboratories America, Inc.
Inventor： Konstantinos Kanonakis , Junqiang Hu , Ankitkumar Patel , Philip Ji , Ting Wang
CPC classification number: H04Q11/00 , H04L12/40136 , H04Q2213/13103 , H04Q2213/13292 , H04Q2213/13389 , Y02D50/10
Abstract: Systems and methods for data transport, including receiving one or more signals into a reconfigurable and flexible rate shared rate multi-transponder network architecture, wherein the network architecture includes one or more transponders with multiple line side interfaces and one or more client side interfaces. The transponders are configured to map one or more signals to multiple parallel Virtual Ethernet Links, remove idle characters from the one or more signals, buffer one or more blocks of characters using an intermediate block buffer, activate and deactivate one or more portions of input/output electrical lanes of an Ethernet module, multiplex and demultiplex the one or more signals to and from the input/output electrical lanes to enable sharing of a single optical transceiver by multiple independent signals, and insert blocks of idle characters to enable transmission over a lower rate transmission pipe.
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8.发明授权Compute followed by network load balancing procedure for embedding cloud services in software-defined flexible-grid optical transport networks 有权计算，然后是网络负载平衡过程，用于将云服务嵌入软件定义的灵活网格光传输网络中公开(公告)号：US09525726B2
公开(公告)日：2016-12-20
申请号：US14312603
申请日：2014-06-23
Applicant: NEC Laboratories America, Inc.
Inventor： Ankitkumar Patel , Philip Ji , Ting Wang
IPC: G06F15/173 , H04L29/08 , H04Q11/00 , H04L12/803
CPC classification number: H04L67/1002 , H04J14/0257 , H04L47/125 , H04Q11/0001
Abstract: A method entails an efficient procedure, namely Compute followed by Network Load Balancing (CNLB), that first maps virtual nodes over physical nodes while balancing computational resources of different types, and finally, maps virtual links over physical routes while balancing network spectral resources.
Abstract translation: 一种方法需要一个有效的过程，即计算后跟网络负载平衡（CNLB），首先在物理节点上映射虚拟节点，同时平衡不同类型的计算资源，最后，通过物理路由映射虚拟链路，同时平衡网络频谱资源。
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公开(公告)号：US09414135B2
公开(公告)日：2016-08-09
申请号：US14573483
申请日：2014-12-17
Applicant: NEC Laboratories America, Inc.
Inventor： Ankitkumar Patel , Konstantinos Kanonakis , Junqiang Hu , Philip Ji
CPC classification number: H04Q11/0005 , H04J3/1664 , H04J2203/0012 , H04J2203/0019 , H04Q11/0062
Abstract: Methods and systems for flexible-client, flexible-link optical transponders include electrical-to-optical transponders, which accept client data from a flow distributor, and a first multiplexing switch that connects modulated optical carriers from the transponders to line interfaces. The electrical-to-optical transponders each include a flexible optical transport unit (OTU) framer module that compresses multiple optical data units (ODUs) into a single ODU having a higher order than any of the input ODUs to form an optical transport network (OTN) frame. An electrical-to-optical modulator modulates OTN frames onto a carrier. The transponder includes a second multiplexing switch that accepts optical carriers from line interfaces and optical-to-electrical transponders that accept modulated optical carriers from the second multiplexing switch. Each optical-to-electrical transponder includes a photodetector to convert the modulated optical carriers to the electrical domain and a flexible OTU framer module that decompresses received ODUs in OTN frames into multiple ODUs to form a bit stream.
Abstract translation: 灵活客户端，灵活链路光转发器的方法和系统包括从流分发器接收客户端数据的电 - 光转发器，以及将转发器上的调制光载波连接到线路接口的第一复用开关。 电光转发器每个都包括柔性光传输单元（OTU）成帧器模块，其将多个光数据单元（ODU）压缩成具有比任何输入ODU高的单个ODU，以形成光传输网络（OTN ）框架。 电光调制器将OTN帧调制到载波上。 应答器包括第二复用开关，其接收来自线路接口的光载波和接收来自第二复用交换机的调制光载波的光电转发器。 每个光电转发器包括用于将经调制的光载波转换成电域的光电检测器，以及将OTN帧中接收的ODU解压缩成多个ODU以形成比特流的灵活OTU成帧器模块。
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10.发明申请Survivable Hybrid Optical/Electrical Data Center Networks Using Loss of Light Detection 有权使用光损失检测的可行性混合光电数据中心网络公开(公告)号：US20160204856A1
公开(公告)日：2016-07-14
申请号：US14961236
申请日：2015-12-07
Applicant: NEC Laboratories America, Inc.
Inventor： Yawei Yin , Konstantinos Kanonakis , Philip Ji , Ting Wang , Shinya Nakamura
IPC: H04B10/038 , H04B10/079 , H04B10/032
CPC classification number: H04B10/038 , H04B10/032 , H04B10/0793 , H04B10/0795 , H04B10/07955 , H04Q11/0005
Abstract: Systems and methods are disclosed for data communication by forming a hybrid that includes an electrical switching network with packet granularity of switching and store-and-forward forwarding services to network traffic and an optical switching network providing circuit granularity of switching and optical bypassing services to network traffic; applying local control of optical switching modules in the optical switching network with a network controller coupled to the electrical switching network, the optical switching network, and a loss-of-light detection module; and detecting loss-of-light in a failure point in the optical switching network and rerouting traffic to avoid the optical failure point.
Abstract translation: 公开了用于数据通信的系统和方法，其通过形成包括具有交换分组粒度的交换网络和存储转发转发服务到网络业务的交换网络和向网络提供交换和光旁路服务的电路粒度的光交换网络的混合 交通; 通过耦合到电气交换网络，光交换网络和光损失检测模块的网络控制器对光交换网络中的光交换模块进行本地控制; 并且在光交换网络中的故障点中检测光损耗并重新路由业务以避免光学故障点。
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