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    COMMUNICATION DEVICE, CONTROL METHOD, AND COMMUNICATION SYSTEM
    2.
    发明申请
    COMMUNICATION DEVICE, CONTROL METHOD, AND COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20170339573A1

    公开(公告)日：2017-11-23

    申请号：US15534569

    申请日：2015-12-10

    Applicant: NEC CORPORATION

    Inventor： Yoshiyuki YAMADA

    IPC: H04W16/22 ,  H04W24/08 ,  H04W4/00 ,  H04W76/02

    CPC classification number: H04W16/22 ,  H04W4/70 ,  H04W24/08 ,  H04W72/08 ,  H04W76/10

    Abstract: This communication device for mitigating deterioration in signal processing performance in a network node and/or for increasing the stability of the network node on the basis of an appropriate estimation of the quantity of equipment with respect to a communication traffic is a communication device in which a function for processing a control signal a terminal transmits to connect to a network is operated by a virtual machine. The communication device includes: a first means for collecting, from a network node that processes traffic transmitted and received by a plurality of the terminals, traffic data comprising information about the traffic; and a second means that extracts, from the collected traffic data, a traffic feature quantity including the degree of variation in the traffic. The second means has the function for calculating, on the basis of the extracted traffic feature quantity, the resource quantity of the communication device and/or the network node that is required for processing the traffic.

    ABNORMALITY DETECTION DEVICE, ABNORMALITY DETECTION METHOD AND ABNORMALITY DETECTION PROGRAM
    3.
    发明申请
    ABNORMALITY DETECTION DEVICE, ABNORMALITY DETECTION METHOD AND ABNORMALITY DETECTION PROGRAM 审中-公开

    公开(公告)号：US20200036745A1

    公开(公告)日：2020-01-30

    申请号：US16491892

    申请日：2017-03-09

    Applicant: NEC CORPORATION

    Inventor： Yoshiyuki YAMADA

    IPC: H04L29/06 ,  G06F16/22 ,  G06N20/00 ,  G06N5/04

    Abstract: An abnormality detection device 10, which detects an abnormality of a data series to be detected that has regularity in a sequence of data forming the data series, is provided with: a determination unit 11 which refers to a data series of a normal model composed of a prescribed permutation as a data series that indicates a state in which a system to be detected is normal, and which, every time one piece of data is input, in light of a permutation indicated by a pair of the one piece of input data and another piece of data input immediately before the one piece of data is input, determines that the data series to be detected is locally abnormal when the permutation is not included in the normal model, and determines that the data series to be detected is locally normal when the permutation is included in the normal model.

    CONTROL DEVICE, CONTROL METHOD, AND COMMUNICATION SYSTEM
    4.
    发明申请
    CONTROL DEVICE, CONTROL METHOD, AND COMMUNICATION SYSTEM 审中-公开

    公开(公告)号：US20170353878A1

    公开(公告)日：2017-12-07

    申请号：US15534594

    申请日：2015-12-10

    Applicant: NEC CORPORATION

    Inventor： Yoshiyuki YAMADA

    IPC: H04W24/08 ,  H04L12/24 ,  H04L12/26 ,  H04W4/00

    CPC classification number: H04W24/08 ,  H04L41/142 ,  H04L43/062 ,  H04W4/70 ,  H04W16/04 ,  H04W16/22

    Abstract: To reduce the signal processing performance degradation of a network node and/or to enhance the stability of the network node based on an appropriate estimate of equipment quantity in relation to communication traffic, a control device according to an embodiment of the present invention includes a first means for collecting, from a network node that processes traffic, traffic data that is information about the traffic and a second means for extracting, from the collected traffic data, a traffic feature value including the degree of the variation of the traffic. On the basis of the extracted traffic feature value, the second means calculates the amount of resources necessary for the network node to process the traffic.

    SECURITY EVALUATION SYSTEM, SECURITY EVALUATION METHOD, AND PROGRAM
    6.
    发明申请
    SECURITY EVALUATION SYSTEM, SECURITY EVALUATION METHOD, AND PROGRAM 有权

    公开(公告)号：US20210006582A1

    公开(公告)日：2021-01-07

    申请号：US16975901

    申请日：2018-03-27

    Applicant: NEC Corporation

    Inventor： Yoshiyuki YAMADA ,  Yoshinobu OHTA ,  Masaki INOKUCHI

    IPC: H04L29/06

    Abstract: This security evaluation system includes a first graph generation part that generates a first evaluation graph representing a connection relationship between resources as a target for security evaluation; a second graph generation part that generates a second evaluation graph representing a personal relationship between areas where the resources are located; and display part that displays the first evaluation graph and the second evaluation graph in association with each other.

    COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD
    7.
    发明申请
    COMMUNICATION DEVICE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD 审中-公开

    公开(公告)号：US20180288680A1

    公开(公告)日：2018-10-04

    申请号：US15563024

    申请日：2016-03-22

    Applicant: NEC Corporation

    Inventor： Yoshiyuki YAMADA

    IPC: H04W48/06 ,  H04W28/08 ,  H04W68/02 ,  H04W28/02

    Abstract: The objective of the invention is to suppress increases in a C-Plane processing load on a mobile network side even if requests to call a plurality of terminals in the mobile network are generated within a short period of time. A communication device according to one mode of embodiment of the present invention is a communication device which transmits a paging message to a terminal that transmits a control signal for connecting to a network in response to receiving the paging message, wherein the communication device includes: a control unit which, in response to being requested to transmit paging messages to a plurality of terminals, determines, for each of the plurality of terminals, a time period for delaying transmission of the control signal; and a transmitting unit which transmits, to each of the plurality of terminals, the respective paging message including the time period by which the transmission of the control signal is to be delayed.

    NETWORK CONTROL METHOD AND SYSTEM
    9.
    发明申请
    NETWORK CONTROL METHOD AND SYSTEM 审中-公开
    网络控制方法与系统

    公开(公告)号：US20170013477A1

    公开(公告)日：2017-01-12

    申请号：US15122061

    申请日：2015-02-19

    Applicant: NEC Corporation

    Inventor： Yoshiyuki YAMADA

    IPC: H04W24/02 ,  H04L12/823 ,  H04L12/825

    CPC classification number: H04W24/02 ,  H04L47/25 ,  H04L47/283 ,  H04L47/32

    Abstract: A network control method and system are provided that achieve effective load reduction control, overviewing an entire network. A system for controlling a network (20) including a plurality of nodes (21, 22) includes: a traffic data collection function (11) of collecting traffic data from the network; a traffic feature extraction function (12) of extracting a traffic feature of the network in its entirety from the collected traffic data; and a parameter determination function (13) of determining a control parameter to be set on the nodes, based on the traffic feature.

    Abstract translation: 提供了一种网络控制方法和系统，实现有效的负载减少控制，概述整个网络。 一种用于控制包括多个节点（21,22）的网络（20）的系统，包括：从所述网络收集交通数据的交通数据收集功能（11）; 交通特征提取功能（12），从所收集的交通数据中提取整个网络的交通特征; 以及基于所述业务特征来确定要在所述节点上设置的控制参数的参数确定功能（13）。

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