公开(公告)号：US11463171B2

公开(公告)日：2022-10-04

申请号：US16885190

申请日：2020-05-27

Applicant: NEC Laboratories America, Inc.

Inventor： Yue-Kai Huang ,  Ezra Ip ,  Philip Nan Ji ,  Ming-Fang Huang

IPC: H04B10/00 ,  H04B10/2543 ,  H04B10/25 ,  H04J14/00

Abstract: Aspects of the present disclosure describe systems, methods and structures providing bidirectional optical fiber communication and sensing using the same fiber transmission band and bidirectional WDM fiber sharing such that communications channels and optical fiber sensing channel(s) coexist on the same fiber. As a result, nonlinear interaction between communications channels and interrogating pulse(s) of sensing are much reduced or eliminated.

公开(公告)号：US09866442B2

公开(公告)日：2018-01-09

申请号：US14699228

申请日：2015-04-29

Applicant: NEC Laboratories America, Inc.

Inventor： Ankitkumar Patel ,  Philip Nan Ji ,  Ting Wang

IPC: H04J14/02 ,  H04L12/24

CPC classification number: H04L41/12 ,  H04J14/0227 ,  H04J14/0257 ,  H04J14/0271 ,  H04L41/22

Abstract: Methods and systems for embedding VI demands in a software-defined network include mapping virtual nodes over physical nodes in a network topology. An auxiliary graph including virtual links between physical nodes that have a residual capacity sufficient to meet a virtual infrastructure demand is constructed. Virtual links over physical links are mapped to maximize use of existing optical channels and to minimize switching of a virtual link between a wavelength division multiplexing layer and an IP layer. New optical channels with a maximum spectral efficiency are established. A set of potential solutions for embedding a set of virtual infrastructure demands is determined. A solution is selected from the set of potential solutions that maximizes a weighted average of spectrum needed to support the set of virtual infrastructure demands and a cost of provisioning the virtual infrastructure demands.

公开(公告)号：US09813155B2

公开(公告)日：2017-11-07

申请号：US15385944

申请日：2016-12-21

Applicant: NEC Laboratories America, Inc.

Inventor： Giovanni Milione ,  Philip Nan Ji ,  Ezra Ip ,  Shaoliang Zhang ,  Yue-Kai Huang ,  Ting Wang

IPC: H04B10/00 ,  H04B10/25 ,  H04J14/02 ,  H04J14/06 ,  H04L5/14 ,  H04B10/40 ,  H04B7/0413 ,  H04B10/2581 ,  H04J14/00

CPC classification number: H04B10/2503 ,  H04B7/0413 ,  H04B10/2581 ,  H04B10/40 ,  H04J14/02 ,  H04J14/06 ,  H04L5/14

Abstract: Systems and methods for optical communication are disclosed that include communicating data using one or more transceiver pairs coupled to a spatial-multiplexer (S-MUX); performing bi-directional transmissions over an elliptical core optical fiber to a spatial-demultiplexer (S-DEMUX) using spatial modes to communicate data in either direction between two transceiver pairs with low crosstalk and without optical circulators or wavelength-division multiplexing (WDM); and communicating data from the S-DEMUX with g one or more transceiver pairs.

公开(公告)号：US09544667B2

公开(公告)日：2017-01-10

申请号：US14506627

申请日：2014-10-04

Applicant: NEC Laboratories America, Inc.

Inventor： Junqiang Hu ,  Philip Nan Ji ,  Ting Wang ,  Yawei Yin

IPC: H04J14/00 ,  H04Q11/00

CPC classification number: H04Q11/0066 ,  H04Q2011/0064

Abstract: A switching system includes one or more line card for input processing, forwarding, queuing, and scheduling data, the line card having a tunable laser to select a wavelength according to the packets' destination for a given burst of packets, so that the burst is switched to a desired destination and sent all-optically to a connected interface; an all-optical switch fabric coupled to the line card to perform wavelength switching; and a centralized arbitrator that resolves the contention from different input ports.

Abstract translation: 交换系统包括用于输入处理，转发，排队和调度数据的一个或多个线路卡，该线路卡具有可调谐激光器，以针对给定的分组突发根据分组的目的地选择波长，使得该突发是 切换到所需的目的地并全光发送到连接的接口; 耦合到线路卡以执行波长切换的全光交换结构; 以及解决来自不同输入端口的争用的集中仲裁器。

公开(公告)号：US09473573B2

公开(公告)日：2016-10-18

申请号：US14317156

申请日：2014-06-27

Applicant: NEC Laboratories America, Inc.

Inventor： Ankitkumar N. Patel ,  Philip Nan Ji

IPC: H04L29/08 ,  H04L12/803

CPC classification number: H04L67/1036

Abstract: A method for providing cloud embedding using Network followed by Compute Load Balancing (NCLB) by mapping one or more virtual links over one or more physical links while balancing network resources, and mapping one or more virtual nodes over one or more physical nodes while balancing different types of computational resources.

Abstract translation: 一种使用网络跟随计算负载平衡（NCLB）提供云嵌入的方法，通过在平衡网络资源的同时在一个或多个物理链路上映射一个或多个虚拟链路，并在一个或多个物理节点上映射一个或多个虚拟节点，同时平衡不同的 计算资源类型。

公开(公告)号：US09131289B2

公开(公告)日：2015-09-08

申请号：US13915874

申请日：2013-06-12

Applicant: NEC Laboratories America, Inc.

Inventor： Neda Cvijetic ,  Maria Ioanna Angelou ,  Ankitkumar Patel ,  Milorad Cvijetic ,  Philip Nan Ji ,  Ting Wang

IPC: H04J14/00 ,  H04B10/20 ,  H04Q11/00 ,  H04J14/02

CPC classification number: H04Q11/0066 ,  H04J14/0227 ,  H04J14/0282

Abstract: A software-defined (SD) optical network is disclosed. An SD optical line terminal (OLT) includes a global SD controller, one or more SD OLT drivers connected to the global SD controller, and an underlying hardware component connected to each of said one or more SD OLT drivers. An SD optical network unit (ONU) includes a local SD controller, one or more SD optical network unit (ONU) drivers connected to the local SD controller, and an underlying hardware component connected to each of said one or more SD ONU drivers, wherein the local SD controller manages said one or more SD ONU drivers by issuing commands communicated to said one or more SD ONU drivers, and wherein each of said one or more SD ONU drivers implements a required function on the underlying hardware component. Other apparatuses, systems, and methods also are disclosed.

Abstract translation: 公开了一种软件定义（SD）光网络。 SD光线路终端（OLT）包括全局SD控制器，连接到全局SD控制器的一个或多个SD OLT驱动器和连接到所述一个或多个SD OLT驱动器中的每一个的底层硬件组件。 SD光网络单元（ONU）包括本地SD控制器，连接到本地SD控制器的一个或多个SD光网络单元（ONU）驱动器和连接到所述一个或多个SD ONU驱动器中的每一个的底层硬件组件，其中 本地SD控制器通过发出传送给所述一个或多个SD ONU驱动器的命令来管理所述一个或多个SD ONU驱动器，并且其中所述一个或多个SD ONU驱动器中的每一个在底层硬件组件上实现所需功能。 还公开了其他装置，系统和方法。

公开(公告)号：US20150104171A1

公开(公告)日：2015-04-16

申请号：US14506627

申请日：2014-10-04

Applicant: NEC Laboratories America, Inc.

Inventor： Junqiang Hu ,  Philip Nan Ji ,  Ting Wang ,  Yawei Yin

IPC: H04Q11/00

CPC classification number: H04Q11/0066 ,  H04Q2011/0064

Abstract: A switching system includes one or more line card for input processing, forwarding, queuing, and scheduling data, the line card having a tunable laser to select a wavelength according to the packets' destination for a given burst of packets, so that the burst is switched to a desired destination and sent all-optically to a connected interface; an all-optical switch fabric coupled to the line card to perform wavelength switching; and a centralized arbitrator that resolves the contention from different input ports.

Abstract translation: 交换系统包括用于输入处理，转发，排队和调度数据的一个或多个线路卡，该线路卡具有可调谐激光器，以针对给定的分组突发根据分组的目的地选择波长，使得突发是 切换到所需的目的地并全光发送到连接的接口; 耦合到线路卡以执行波长切换的全光交换结构; 以及解决来自不同输入端口的争用的集中仲裁器。

公开(公告)号：US20140095685A1

公开(公告)日：2014-04-03

申请号：US14044177

申请日：2013-10-02

Applicant: NEC Laboratories America, Inc.

Inventor： Neda Cvijetic ,  Ankitkumar Patel ,  Philip Nan Ji ,  Ting Wang ,  Maria Ioanna Angelou

IPC: H04L12/24

CPC classification number: H04L41/00 ,  H04L41/022 ,  H04L41/04 ,  H04L41/044 ,  H04L41/12 ,  H04L45/38 ,  H04L45/42

Abstract: A generic centralized, software-defined networking configuration for connecting network is defined as a generic multi-layer topology network entities interconnected either vertically or horizontally regardless of the employed network topology/graph). This centralized configuration enables establishment of a connection between any two networking entities by 1) bypassing intermediate protocol layers and 2) eliminating any handshaking between peer elements of the same layer. The centralized software-defined controller notifies in parallel all involved network entities along a connection path to take all necessary actions (i.e. reconfiguration) to establish the new connection. The centralized controller has authority to control only entities that are software-defined SD.

Abstract translation: 用于连接网络的通用集中式软件定义网络配置被定义为垂直或水平互连的通用多层拓扑网络实体，而不管采用的网络拓扑/图形如何）。 这种集中式配置可以通过以下方式建立任何两个组网实体之间的连接：1）绕过中间协议层，以及2）消除同一层的对等体元素之间的任何握手。 集中式软件定义的控制器并行地通过连接路径并行地通知所有涉及的网络实体，以采取所有必要的动作（即重新配置）来建立新的连接。 集中控制器具有仅控制软件定义SD的实体的权限。

公开(公告)号：US20130170825A1

公开(公告)日：2013-07-04

申请号：US13628572

申请日：2012-09-27

Applicant: NEC Laboratories America, Inc.

Inventor： Junqiang Hu ,  Philip Nan Ji ,  Ting Wang ,  Yoshiaki Aono

IPC: H04B10/038

CPC classification number: H04B10/038 ,  H04B10/032

Abstract: In an optical communication system containing a primary line and backup line card, a method includes providing interfaces for the primary and backup line card, each line card including a transmitter and receiver; and selecting output from the transmitter from either the primary or back up line card including selecting the backup line card when the primary line card encounters a failure.

Abstract translation: 在包含主线路和备用线路卡的光通信系统中，一种方法包括提供用于主线路和备用线路卡的接口，每个线路卡包括发射机和接收机; 以及从主或备用线卡选择发射机的输出，包括当主线卡遇到故障时选择备用线路卡。

公开(公告)号：US11132542B2

公开(公告)日：2021-09-28

申请号：US16455009

申请日：2019-06-27

Applicant: NEC Laboratories America, Inc.

Inventor： Philip Nan Ji ,  Shuji Murakami ,  Giovanni Milione ,  Ting Wang

IPC: G06K9/00 ,  G01N23/203 ,  G06T5/00 ,  G06K9/40

Abstract: Aspects of the present disclosure describe systems, methods and structures employing time-space de-noising for distributed sensor.