公开(公告)号：US09161107B2

公开(公告)日：2015-10-13

申请号：US14166350

申请日：2014-01-28

Applicant: NEC Laboratories America, Inc.

Inventor： Philip Nan Ji ,  Ting Wang

IPC: H04J14/00 ,  H04Q11/00 ,  H04L27/26 ,  H04J14/02 ,  H04L12/931

CPC classification number: H04Q11/0066 ,  H04J14/0267 ,  H04L5/0008 ,  H04L5/0023 ,  H04L5/0028 ,  H04L27/2601 ,  H04L27/2697 ,  H04L49/356 ,  H04Q11/0005 ,  H04Q2011/0032 ,  H04Q2213/13291

Abstract: A communication system enabling a switching procedure for a multiple-input multiple-output orthogonal frequency division multiplexing (MIMO OFDM) based flexible rate intra-data center network DCN, includes a MIMO OFDM DCN with optical burst switching OBS capability, an optical burst switching OBS procedure for influencing the MIMO OFDM DCN, and a centralized control configuration coupled to the MIMO OFDM DCN and enabling a software defined network SDN configuration in the communication system.

Abstract translation: 一种能够实现基于多输入多输出正交频分复用（MIMO OFDM）的灵活率数据中心网络DCN的切换过程的通信系统包括具有光突发交换OBS能力的MIMO OFDM DCN，光突发交换OBS 影响MIMO OFDM DCN的过程，以及耦合到MIMO OFDM DCN的集中式控制配置，并且在通信系统中实现软件定义的网络SDN配置。

公开(公告)号：US20150288434A1

公开(公告)日：2015-10-08

申请号：US14744496

申请日：2015-06-19

Applicant: NEC Laboratories America, Inc.

Inventor： Narayan Prasad ,  Guosen Yue ,  Mohammad A. Khojastepour ,  Meilong Jiang ,  Sampath Rangarajan

IPC: H04B7/04 ,  H04L27/00 ,  H04J11/00 ,  H04W72/04 ,  H04L5/00

CPC classification number: H04B7/0452 ,  H04J11/0046 ,  H04L5/0023 ,  H04L25/03331 ,  H04L27/0008 ,  H04L27/0012 ,  H04L27/34 ,  H04W72/042 ,  H04W72/12

Abstract: A method implemented in a user equipment used in a wireless communications system is disclosed. The method comprises receiving from a base station an indication of a first modulation type for the user equipment, receiving from the base station a first data signal for the user equipment, receiving from the base station an indication of a minimum time-frequency unit that is assigned to another user equipment, receiving a second data signal for said another user equipment, where a second modulation type for said another user equipment is unknown to the user equipment, and cancelling and suppressing interference by using the minimum time-frequency unit. Other methods, systems, and apparatuses also are disclosed.

Abstract translation: 公开了一种在无线通信系统中使用的用户设备中实现的方法。 该方法包括从基站接收用户设备的第一调制类型的指示，从基站接收用户设备的第一数据信号，从基站接收最小时间频率单元的指示，该最小时间频率单位是 分配给另一用户设备，接收用于所述另一用户设备的第二数据信号，其中所述另一用户设备的第二调制类型对于用户设备是未知的，并且通过使用最小时间频率单元来消除和抑制干扰。 还公开了其它方法，系统和装置。

公开(公告)号：US20150277990A1

公开(公告)日：2015-10-01

申请号：US14504434

申请日：2014-10-02

Applicant: NEC Laboratories America, Inc.

Inventor： Pengchong Xiong ,  Vahit Hakan Hacigumus ,  Xin He

IPC: G06F9/52

CPC classification number: G06F9/52 ,  G06F8/433 ,  G06F8/443 ,  G06F8/445 ,  G06F9/5066 ,  H04L45/24 ,  H04L45/64 ,  H04L67/101

Abstract: A system includes a task scheduler that works collaboratively with a flow scheduler; a network-aware task scheduler based on software-defined network, the task scheduler scheduling tasks according to available network bandwidth.

Abstract translation: 系统包括与流程调度程序协同工作的任务调度器; 基于软件定义网络的网络感知任务调度器，任务调度器根据可用网络带宽调度任务。

公开(公告)号：US09125047B2

公开(公告)日：2015-09-01

申请号：US13951396

申请日：2013-07-25

Applicant: NEC Laboratories America, Inc.

Inventor： Karthikeyan Sundaresan ,  Cheng Liu ,  Mustafa Arslan ,  Meilong Jiang ,  Sampath Rangarajan

IPC: H04W80/04 ,  H04W16/02 ,  H04W84/04 ,  H04W24/02 ,  H04W16/32 ,  H04W88/08

CPC classification number: H04W16/02 ,  H04W16/32 ,  H04W24/02 ,  H04W84/042 ,  H04W88/085

Abstract: A wireless communications system is disclosed. The system comprises a baseband processing unit (BBU) pool including one or more baseband processing units (BBUs), and a plurality of remote radio heads (RRHs) connected to the BBU pool through a front-haul network, wherein the wireless communications system has a plurality of sectors, each of which includes one or more small cells, each of which is deployed by one of the plurality of RRHs, wherein a BBUs is mapped to two or more RRHs in a sector in a one-to-many configuration, and a BBU is mapped to a single RRH in a sector in a one-to-one configuration, and wherein a combination of the one-to-one configuration and the one-to-many configuration is applied to each sector. Other systems, apparatuses, and methods also are disclosed.

Abstract translation: 公开了一种无线通信系统。 该系统包括一个包括一个或多个基带处理单元（BBU）的基带处理单元（BBU）池以及通过前端网络连接到BBU池的多个远程无线电头（RRH），其中该无线通信系统具有 多个扇区，每个扇区包括一个或多个小小区，每个小小区由多个RRH中的一个部署，其中BBU被映射到一对多配置中扇区中的两个或更多个RRH， 并且BBU以一对一配置映射到扇区中的单个RRH，并且其中将一对一配置和一对多配置的组合应用于每个扇区。 还公开了其它系统，装置和方法。

公开(公告)号：US09124326B2

公开(公告)日：2015-09-01

申请号：US14205629

申请日：2014-03-12

Applicant: NEC Laboratories America, Inc.

Inventor： Dayou Qian ,  Eduardo Mateo Rodriquez ,  Ting Wang

IPC: H04L27/00 ,  H04B1/04

CPC classification number: H04B1/0483 ,  H04B10/516 ,  H04L25/14 ,  H04L27/2633 ,  H04L27/2636

Abstract: Disclosed are structures and methods for slicing a broadband signal into multiple, narrower bandwidth sub-bands through the use of a look-up table (LUT). An input broadband signal is first loaded by a pre-defined LUT. The LUT is designed with multiple parallel outputs, wherein each output is one individual sub-band.

Abstract translation: 公开了通过使用查找表（LUT）将宽带信号切割成多个较窄带宽子带的结构和方法。 输入宽带信号首先由预定义的LUT加载。 LUT设计有多个并行输出，其中每个输出是一个单独的子带。

公开(公告)号：US20150233761A1

公开(公告)日：2015-08-20

申请号：US14615525

申请日：2015-02-06

Applicant: NEC Laboratories America, Inc.

Inventor： Yue Tian ,  Ting Wang

IPC: G01J3/02 ,  G01N21/25

CPC classification number: G01J3/0218 ,  G01J3/10 ,  G01N21/255 ,  G01N2201/06113 ,  G01N2201/062 ,  G01N2201/08

Abstract: Active components in an optical spectroscopy based sensor are moved to a remote site and the light is guided between the remote site and the sensing site through optical fibers.

Abstract translation: 基于光谱学的传感器中的有源元件被移动到远程位置，并且通过光纤在远程位置和感测位置之间引导光。

公开(公告)号：US20150229437A1

公开(公告)日：2015-08-13

申请号：US14179683

申请日：2014-02-13

Applicant: NEC Laboratories America, Inc.

Inventor： Ivan B. Djordjevic ,  Ting Wang

IPC: H04L1/00 ,  H04J14/00 ,  H04L27/26 ,  H03M13/11

CPC classification number: H04L1/0041 ,  H03M13/116 ,  H03M13/1177 ,  H03M13/255 ,  H03M13/271 ,  H03M13/2957 ,  H03M13/6325 ,  H04B10/2581 ,  H04B10/61 ,  H04J14/002 ,  H04L1/0045 ,  H04L1/0058 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/025 ,  H04L25/0256 ,  H04L27/2626 ,  H04L27/2697 ,  H04L27/3405 ,  H04L27/362

Abstract: A system/method for data transport, including encoding one or more streams of input data using one or more Low Density Parity Check (LDPC) encoders; employing one or more signal constellations obtained using an optimum signal constellation design (OSCD); determining an optimum mapping rule by comparing cost functions of each of a plurality of mapping rules; combining one or more LDPC-coded OSCD signal constellation data streams with coherent optical-orthogonal frequency division multiplexing (CO-OFDM) coded modulation to achieve channel capacity; and mode-multiplexing and transmitting one or more independent LDPC-coded optimum signal constellation design (OSCD) data streams over a transmission medium.

Abstract translation: 一种用于数据传输的系统/方法，包括使用一个或多个低密度奇偶校验（LDPC）编码器编码一个或多个输入数据流; 采用使用最佳信号星座设计（OSCD）获得的一个或多个信号星座; 通过比较多个映射规则中的每一个的成本函数来确定最佳映射规则; 将一个或多个LDPC编码的OSCD信号星座数据流与相干光正交频分复用（CO-OFDM）编码调制组合以实现信道容量; 以及通过传输介质来模式复用和发送一个或多个独立的LDPC编码的最佳信号星座设计（OSCD）数据流。

公开(公告)号：US09094148B2

公开(公告)日：2015-07-28

申请号：US14271539

申请日：2014-05-07

Applicant: NEC Laboratories America, Inc.

Inventor： Philip Nan Ji ,  Junqiang Hu ,  Ting Wang

IPC: H04J14/02 ,  H04B10/079 ,  H04B10/296

CPC classification number: H04J14/0221 ,  H04B10/07953 ,  H04B10/07955 ,  H04B10/0797 ,  H04B10/296

Abstract: An optical amplifier that uses software-defined optical networking (SDON) technology, with a centralized controller and flexible physical hardware (the adaptive amplifier here) to optimize the power distribution among different WDM channels in the amplifier. It considers the detailed information for each channel through the information from centralized controller. It is suitable for both single line rate and mixed line rate system, and is suitable for a wavelength division multiplexing WDM system with the same signal type or different signal types.

Abstract translation: 一种使用软件定义光网络（SDON）技术的光放大器，具有集中控制器和灵活的物理硬件（这里的自适应放大器），以优化放大器中不同WDM通道之间的功率分配。 它通过集中控制器的信息来考虑每个通道的详细信息。 适用于单线速率和混合线速系统，适用于具有相同信号类型或不同信号类型的波分复用WDM系统。

公开(公告)号：US09071356B2

公开(公告)日：2015-06-30

申请号：US13628460

申请日：2012-09-27

Applicant: NEC Laboratories America, Inc.

Inventor： Eduardo Mateo ,  Yoshiaki Aono

IPC: H04B10/08 ,  H04B10/2543 ,  H04B10/2531

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。

公开(公告)号：US20150180755A1

公开(公告)日：2015-06-25

申请号：US14575013

申请日：2014-12-18

Applicant: NEC Laboratories America, Inc.

Inventor： Hui Zhang ,  Junghwan Rhee ,  Nipun Arora ,  Cristian Lumezanu ,  Guofei Jiang

IPC: H04L12/26

CPC classification number: H04L41/0631 ,  H04L41/069 ,  H04L41/14 ,  H04L43/0858

Abstract: A computer implemented method for network monitoring includes providing network packet event characterization and analysis for network monitoring that includes supporting summarization and characterization of network packet traces collected across multiple processing elements of different types in a virtual network, including a trace slicing to organize individual packet events into path-based trace slices, a trace characterization to extract at least 2 types of feature matrix describing those trace slices, and a trace analysis to cluster, rank and query packet traces based on metrics of the feature matrix.

Abstract translation: 一种用于网络监测的计算机实现方法包括为网络监测提供网络分组事件表征和分析，其包括支持在虚拟网络中跨越不同类型的多个处理元件收集的网络分组跟踪的概括和表征，包括用于组织各个分组事件的跟踪分片 基于路径的跟踪切片，提取描述这些跟踪切片的至少2种类型的特征矩阵的跟踪表征，以及基于特征矩阵的度量的集群，排序和查询分组跟踪的跟踪分析。