Communication apparatus and communication method
    1.
    发明授权
    Communication apparatus and communication method 有权
    通信设备和通信方法

    公开(公告)号:US09137158B2

    公开(公告)日:2015-09-15

    申请号:US13905791

    申请日:2013-05-30

    申请人: Hitachi, Ltd.

    摘要: In an exemplary communication apparatus, an assignment module determines whether processing for a second packet assigned the flow ID associated with a received first packet is being executed. The assignment module determines a parallel processing module to execute processing for the first packet and a parameter to be included in a notice of assignment. The determined parallel processing module acquires a result of execution of the processing for the second packet from the computation table or the result of execution of the processing held in the parallel processing module according to the received notice of assignment. The determined parallel processing module executes the processing for the first packet using the result of execution of the processing for the second packet and the information included in the notice of assignment, and updates a computation table with a result of execution of the processing for the first packet.

    摘要翻译: 在示例性通信装置中,分配模块确定正在执行与分配的与接收到的第一分组相关联的流ID的第二分组的处理。 分配模块确定并行处理模块以执行第一分组的处理以及要包括在分配通知中的参数。 所确定的并行处理模块根据接收到的分配通知,从计算表中获取执行针对第二分组的处理的结果或者并行处理模块中保存的处理的执行结果。 所确定的并行处理模块使用对第二分组的处理的执行结果和包括在分配通知中的信息的结果来执行第一分组的处理,并且更新具有执行第一分组的处理结果的计算表 包。

    Digital twin management system and method

    公开(公告)号:US11619923B2

    公开(公告)日:2023-04-04

    申请号:US17709611

    申请日:2022-03-31

    申请人: Hitachi, Ltd.

    IPC分类号: G05B19/4069

    摘要: A digital twin management system manages a virtual model that represents an actual physical system in a virtual space on a real-time basis. To generate an integrated virtual model by adding a second virtual model to a first virtual model, a processor of the digital twin system extracts multiple parts that can be used in common in the first virtual model and the second virtual model, generates multiple integrated virtual models that are candidates of an integrated virtual model by changing the extracted parts that can be used in common, calculates an evaluation of each of the generated integrated virtual models, and outputs configuration information regarding each of the integrated virtual model candidates and an evaluation of the integrated virtual model candidate in association with each other.

    Communication apparatus, communication system, and circuit configuration control method

    公开(公告)号:US10193998B2

    公开(公告)日:2019-01-29

    申请号:US15346899

    申请日:2016-11-09

    申请人: HITACHI, LTD.

    摘要: To enable a communication apparatus, which transmits and receives data with a partially reconfigurable logic circuit, to configure a module while continuing a communication process. A communication apparatus transmits and receives data and includes a partially reconfigurable logic circuit and a management unit for managing a circuit configuration of the logic circuit. The logic circuit includes a plurality of modules and a data distribution unit. The management unit fixedly arranges a plurality of coupling interfaces, which are used for sending data to a module determined as a distribution destination of data by the data distribution unit and which are respectively linkable to the plurality of modules, at prescribed positions on the logic circuit, and creates the module in the partially reconfigurable area of the logic circuit so as to be linked to any of the plurality of coupling interfaces.

    COMMUNICATION NODE, COMMUNICATION SYSTEM, AND COMMUNICATION METHOD

    公开(公告)号:US20230308931A1

    公开(公告)日:2023-09-28

    申请号:US17702565

    申请日:2022-03-23

    申请人: Hitachi, Ltd.

    IPC分类号: H04W28/02 H04W28/20

    摘要: A method for a communication node is presented. The method may include storing, in the memory, a set of desired network performance characteristics for an application. The method may further include storing, in the memory, a plurality of traffic-control configurations, where each of the plurality of traffic-control configurations is associated with an estimated power usage and a set of estimated network performance characteristics. The method may also include selecting, to execute the application, a particular traffic-control configuration from a set of two or more traffic-control configurations in the plurality of traffic-control configurations, where the set of two or more traffic-control configurations meet the set of desired network performance characteristics for the application. The method may further include configuring the communication node based on the particular traffic-control configuration.

    REDUNDANT COMMUNICATION SYSTEM
    5.
    发明公开

    公开(公告)号:US20230247496A1

    公开(公告)日:2023-08-03

    申请号:US17589307

    申请日:2022-01-31

    申请人: Hitachi, Ltd.

    摘要: A method, and apparatus for implementing the method, of resource allocation for a communication session in a network that connects a terminal device and a control device via one or more base stations is discussed herein. The method may include storing identifiers of a set of communication objects associated wide the terminal device. The method may further include acquiring information regarding a first set of resources associated with a first communication session for a first communication object in the set of communication objects. The method may also include allocating a second set of resources associated with a second communication session for a second communication object in the set of communication objects, where the second set of resources comprises a disjoint set of resources from the first set of resources.

    Network system and management server

    公开(公告)号:US09992136B2

    公开(公告)日:2018-06-05

    申请号:US14733246

    申请日:2015-06-08

    申请人: Hitachi, Ltd.

    摘要: A communication device includes a plurality of packet processing modules in which a packet processing function is changeable with a program, and a management server holds program information of a plurality of different packet processing module circuits settable to the packet processing modules, selects the packet processing module circuit to be set to the packet processing module, of the plurality of different packet processing module circuits, and transmits the program information of the selected packet processing module circuit and information for identifying the packet processing module that is an object to be set, to the communication device that is an object to be set.

    Communication system, path switching method and communication device
    7.
    发明授权
    Communication system, path switching method and communication device 有权
    通信系统,路径切换方式和通信设备

    公开(公告)号:US09385944B2

    公开(公告)日:2016-07-05

    申请号:US14108977

    申请日:2013-12-17

    申请人: HITACHI, LTD.

    摘要: When a communication path between a user site and a dual-homed data center is made redundant, a communication between the user site and a server within a data center can be continued. An edge node DCE-1 of a data center 40-1 and edge nodes TPE-1, TPE-2 of a transport network are connected to each other by a link TPE-1-1 and a link TPE-2-1, respectively. The edge nodes TPE-3 and TPE-1, TPE-2 that hold a node AE51 of a user site 50 are set with an LSP 110 of an active system, and an LSP 120 of a backup system, respectively. One of the links is active, and the other link is backup, and the LSP of the TPE node having the active link in the LSP 100 and the LSP 120 is made active. The respective links are prioritized, and the links are switched to an active state in order from the links higher in the order of priority when a link failure or an LSP failure occurs.

    摘要翻译: 当使用户站点和双归属数据中心之间的通信路径变得冗余时,可以继续在用户站点和数据中心内的服务器之间进行通信。 数据中心40-1的边缘节点DCE-1和传输网络的边缘节点TPE-1,TPE-2分别通过链路TPE-1-1和链路TPE-2-1相互连接 。 保持用户站点50的节点AE51的边缘节点TPE-3和TPE-1,TPE-2分别被设置为活动系统的LSP 110和备份系统的LSP 120。 其中一个链路是活动的,另一个链路是备份,并且具有LSP 100和LSP 120中的活动链路的TPE节点的LSP被激活。 相应的链路被优先排列,当发生链路故障或LSP故障时,链路按照优先级顺序更高的顺序切换到活动状态。

    Communication device, method for controlling the communication device, and communication system
    8.
    发明授权
    Communication device, method for controlling the communication device, and communication system 有权
    通信装置,通信装置的控制方法以及通信系统

    公开(公告)号:US09065862B2

    公开(公告)日:2015-06-23

    申请号:US13929995

    申请日:2013-06-28

    申请人: HITACHI, LTD.

    摘要: A communication device includes a flow identification unit specifying a user corresponding to received data, a bandwidth control unit controlling transmission of the received data so as not to exceed a bandwidth corresponding to the selected communication path in two bandwidths allocated to the specified user, and a label addition unit adding the label value corresponding to the selected communication path to the data received from the bandwidth control unit and transmitting the data. The label addition unit executes, upon detecting a trigger for a change in the selection of the communication path, changing the selection of the label value and transmitting a feedback signal for giving notice of the change in the selection of the communication path to the bandwidth control unit in a given order. The bandwidth control unit executes a process of changing the setup of the bandwidth on the basis of the received feedback signal.

    摘要翻译: 通信装置包括指定与接收到的数据对应的用户的流量识别单元,带宽控制单元,控制接收到的数据的传输,以便在分配给指定的用户的两个带宽中不超过与所选择的通信路径相对应的带宽, 标签添加单元将与所选择的通信路径相对应的标签值添加到从带宽控制单元接收的数据,并发送数据。 标签添加单元在检测到用于通信路径的选择的改变的触发时,执行改变标签值的选择,并且发送用于给通信路径的选择改变通知的反馈信号到带宽控制 单位在给定的顺序。 带宽控制单元基于所接收的反馈信号执行改变带宽的建立的处理。