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    Method and apparatus for managing a power line communication network in multi-flow environments
    23.
    发明授权
    Method and apparatus for managing a power line communication network in multi-flow environments 有权

    公开(公告)号：US09654174B2

    公开(公告)日：2017-05-16

    申请号：US14845656

    申请日：2015-09-04

    Applicant: NEC Laboratories America, Inc.

    Inventor： Karthikeyan Sundaresan ,  Mohammad Khojastepour ,  Sampath Rangarajan ,  Ahmed O. F. Atya

    IPC: H04B3/54 ,  H04L12/26 ,  H04L12/24

    CPC classification number: H04B3/542 ,  H04L41/0893 ,  H04L43/0888

    Abstract: A method for managing a power line communication network in a multi-flow environment. The method includes determining an average throughput between each pair of nodes acting in isolation within the power line communication network, defining logical zones by grouping each pair of nodes if the average throughput between the pair of nodes exceeds a first threshold, wherein the logical zones include a plurality of strongly coupled zones. The method further includes determining an aggregate throughput for a pair of flows between randomly selected pairs of nodes acting concurrently between the plurality of strongly coupled zones, determining a plurality of pair of flows that can be concurrently operated when the aggregate throughput exceeds the average throughput, estimating a resulting throughput of the plurality of pair of flows that can be concurrently operated, and optimizing a schedule for the plurality of pair of flows based on the resulting throughput.

    SYSTEMS AND METHODS FOR DISTRIBUTED ASSIGNMENT OF TASK IDENTIFIERS
    24.
    发明申请
    SYSTEMS AND METHODS FOR DISTRIBUTED ASSIGNMENT OF TASK IDENTIFIERS 审中-公开

    公开(公告)号：US20170123859A1

    公开(公告)日：2017-05-04

    申请号：US15340712

    申请日：2016-11-01

    Applicant: NEC Laboratories America, Inc.

    Inventor： Mohammad Khojastepour ,  Rajesh Mahindra ,  Karthikeyan Sundaresan ,  Sampath Rangarajan

    IPC: G06F9/50 ,  G06F9/48

    CPC classification number: G06F9/5083 ,  G06F9/4881 ,  G06F9/5033

    Abstract: A system and method are provided. The method includes a base station receiving a plurality of tasks from a plurality of user devices, each of the plurality of tasks involving a respective one of multiple sets of jobs. The method further includes a load balancer generating task allocations for the plurality of tasks, responsive to receiving the plurality of tasks from the base station. A unique task ID is generated for and assigned to each task, from which a task allocation is generated by the load balancer. The task allocations for the plurality of tasks are generated such that all the jobs received from a respective same one of the plurality of user devices are assigned to a same one of the worker entities in the set. The method also includes a set of worker entities performing the plurality of tasks in accordance with the task allocations.

    Carrier aggregation
    27.
    发明授权
    Carrier aggregation 有权
    载波聚合

    公开(公告)号：US09337966B2

    公开(公告)日：2016-05-10

    申请号：US13947015

    申请日：2013-07-19

    Applicant: NEC Laboratories America, Inc.

    Inventor： Karthikeyan Sundaresan ,  Sampath Rangarajan

    IPC: H04L5/00 ,  H04W72/04

    CPC classification number: H04L5/001 ,  H04L5/0058 ,  H04W72/0453

    Abstract: A method implemented in a mobile communications system is disclosed. The method includes selecting primary component carrier cp for a new user according to a formula, and performing joint secondary CC selection for one or more Long Term Evolution (LTE)-Advanced users and resource scheduling for one or more LTE users and said one or more LTE-Advanced users. Other methods, systems, and apparatuses also are disclosed.

    Abstract translation: 公开了一种在移动通信系统中实现的方法。 该方法包括根据公式为新用户选择主分量载波cp，以及针对一个或多个LTE用户执行一个或多个长期演进（LTE）高级用户的联合次CC选择和资源调度，并且所述一个或多个 LTE-Advanced用户。 还公开了其它方法，系统和装置。

    METHOD AND APPARATUS FOR MANAGING A POWER LINE COMMUNICATION NETWORK IN MULTI-FLOW ENVIRONMENTS
    28.
    发明申请
    METHOD AND APPARATUS FOR MANAGING A POWER LINE COMMUNICATION NETWORK IN MULTI-FLOW ENVIRONMENTS 有权
    用于管理多流量环境中的电力线通信网络的方法和装置

    公开(公告)号：US20160094274A1

    公开(公告)日：2016-03-31

    申请号：US14845656

    申请日：2015-09-04

    Applicant: NEC Laboratories America, Inc.

    Inventor： Karthikeyan Sundaresan ,  Mohammad Khojastepour ,  Sampath Rangarajan ,  Ahmed O. F. Atya

    IPC: H04B3/54 ,  H04L12/26

    CPC classification number: H04B3/542 ,  H04L41/0893 ,  H04L43/0888

    Abstract: A method for managing a power line communication network in a multi-flow environment. The method includes determining an average throughput between each pair of nodes acting in isolation within the power line communication network, defining logical zones by grouping each pair of nodes if the average throughput between the pair of nodes exceeds a first threshold, wherein the logical zones include a plurality of strongly coupled zones. The method further includes determining an aggregate throughput for a pair of flows between randomly selected pairs of nodes acting concurrently between the plurality of strongly coupled zones, determining a plurality of pair of flows that can be concurrently operated when the aggregate throughput exceeds the average throughput, estimating a resulting throughput of the plurality of pair of flows that can be concurrently operated, and optimizing a schedule for the plurality of pair of flows based on the resulting throughput.

    Abstract translation: 一种用于在多流环境中管理电力线通信网络的方法。 该方法包括确定在电力线通信网络内孤立地起作用的每对节点之间的平均吞吐量，如果所述一对节点之间的平均吞吐量超过第一阈值，则通过对每对节点进行分组来定义逻辑区域，其中所述逻辑区域包括 多个强耦合区域。 该方法还包括确定在多个强耦合区域之间同时作用的随机选择的节点对之间的一对流的聚合吞吐量，确定当聚合吞吐量超过平均吞吐量时可同时操作的多对流， 估计可以同时操作的多个流对的结果吞吐量，以及基于所得到的吞吐量优化多对流的调度。

    EFFICIENT LARGE-SCALE MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATIONS
    29.
    发明申请
    EFFICIENT LARGE-SCALE MULTIPLE INPUT MULTIPLE OUTPUT COMMUNICATIONS 有权
    有效的大规模多输入多输出通信

    公开(公告)号：US20150365143A1

    公开(公告)日：2015-12-17

    申请号：US14738268

    申请日：2015-06-12

    Applicant: NEC Laboratories America, Inc.

    Inventor： Eugene Chai ,  Xiufeng Xie ,  Mohammad Khojastepour ,  Karthikeyan Sundaresan ,  Sampath Rangarajan

    IPC: H04B7/04 ,  H04B17/309

    CPC classification number: H04B17/309 ,  H04B7/0452 ,  H04B7/0617 ,  H04B17/104

    Abstract: Methods and systems for beam forming, implemented in a base station used in a communication system, include measuring channel state information (CSI) for a number of active phased-array antennas less than a full number of phased-array antennas. Analog beam forming weights are determined using the measured CSI. An optimal digital precoder is determined from the analog beam forming weights. The analog beam forming weights and optimal digital precoder are applied to one phased-array antenna.

    Abstract translation: 在用于通信系统的基站中实现的用于波束形成的方法和系统包括测量小于全数量相控阵列天线的多个有源相控阵天线的信道状态信息（CSI）。 使用测量的CSI确定模拟波束形成权重。 从模拟波束形成权重确定最优数字预编码器。 模拟波束形成权重和最佳数字预编码器应用于一个相控阵天线。

    Coordinated multi-point transmission
    30.
    发明授权
    Coordinated multi-point transmission 有权
    协调多点传输

    公开(公告)号：US08891604B2

    公开(公告)日：2014-11-18

    申请号：US13629034

    申请日：2012-09-27

    Applicant: NEC Laboratories America, Inc.

    Inventor： Mohammad A. Khojastepour ,  Xinyu Zhang ,  Karthikeyan Sundaresan ,  Sampath Rangarajan

    IPC: H04B3/46 ,  H04B17/00 ,  H04Q1/20 ,  H04B7/04 ,  H04B7/02

    CPC classification number: H04B7/0456 ,  H04B7/024

    Abstract: In a multiple-input multiple-output (MIMO) wireless system supporting Coordinated Multi-Point (CoMP) transmission and having a first base station, a second base station, and a user equipment, a communications method implemented in the first base station is disclosed. In an aspect, the communications method includes exchanging, with the second base station through local information exchange, first information about a first channel between the first base station and the user equipment and second information about a second channel between the second base station and the user equipment, and computing at least one of a precoding matrix, a receiver filter, and a projection matrix, wherein the user equipment estimates the first information and the second information, and shares the first information and the second information with the first base station. Other apparatuses and some methods for wireless communications also are disclosed.

    Abstract translation: 在支持协调多点（CoMP）传输并具有第一基站，第二基站和用户设备的多输入多输出（MIMO）无线系统中，公开了在第一基站中实现的通信方法 。 一方面，通信方法包括通过本地信息交换与第二基站交换关于第一基站和用户设备之间的第一信道的第一信息和关于第二基站与用户之间的第二信道的第二信息 设备，以及计算预编码矩阵，接收机过滤器和投影矩阵中的至少一个，其中用户设备估计第一信息和第二信息，并与第一基站共享第一信息和第二信息。 还公开了用于无线通信的其它装置和一些方法。

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