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公开(公告)号：US20220312255A1
公开(公告)日：2022-09-29
申请号：US17475537
申请日：2021-09-15
Applicant: Hitachi, Ltd.
Inventor： Mikio KUWAHARA
Abstract: It is provided a communication system comprising: at least one IoT terminal; a base station apparatus to which the IoT terminal is to be coupled; an edge server selectively receives user plane packets transmitted and received by the base station apparatus; and a cloud server selectively receives user plane packets transmitted and received by one of the base station apparatus and the edge server, wherein at least one of the IoT terminal, the edge server, or the cloud server has arranged therein a first middleware formed of software, and wherein the first middleware receives an instruction on a policy which is set based on a result of analyzing traffic of packets transported in the communication system; receives by proxy an instruction to transmit packets from an application; adjusts timings to transmit the packets in accordance with the instructed policy; and relays a transmission instruction to a communication module.
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2.发明申请WIRELESS COMMUNICATION SYSTEM, BASE STATION APPARATUS, AND WIRELESS COMMUNICATION METHOD 审中-公开无线通信系统，基站设备和无线通信方法公开(公告)号：US20150156673A1
公开(公告)日：2015-06-04
申请号：US14542758
申请日：2014-11-17
Applicant: HITACHI, LTD.
Inventor： Mikio KUWAHARA
CPC classification number: H04W28/0205 , H04W36/22 , H04W36/38 , H04W72/04
Abstract: It is provided a wireless communication system, comprising: a plurality of terminal apparatus; and at least one base station apparatus, each of the plurality of terminal apparatus and the at least one base station apparatus being configured to communicate to/from each other with any one of a plurality of carriers, the at least one base station apparatus being configured to: determine which of a first terminal apparatus having a characteristic of repeatedly transmitting a signal at the same timing and a second terminal apparatus having a characteristic of transmitting a signal at a random timing different from the same timing each of the plurality of terminal apparatus is; monitor each of the plurality of carriers to which the first terminal apparatus is allocated; and allocate a plurality of the first terminal apparatus to distribute to the plurality of carriers based on a result of the monitoring.
Abstract translation: 提供一种无线通信系统，包括：多个终端装置; 以及至少一个基站装置，所述多个终端装置和所述至少一个基站装置中的每一个被配置为使用多个载波中的任一个与彼此进行通信，所述至少一个基站装置被配置 ：确定具有在相同定时重复发送信号的特性的第一终端装置中的哪一个以及具有与多个终端装置中的每一个相同的定时不同的随机定时发送信号的特性的第二终端装置是 ; 监视分配有第一终端装置的多个载波的每一个; 并且基于所述监视的结果，分配多个所述第一终端装置以分发给所述多个载体。
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公开(公告)号：US20210297880A1
公开(公告)日：2021-09-23
申请号：US17205362
申请日：2021-03-18
Applicant: HITACHI, LTD.
Inventor： Mikio KUWAHARA
Abstract: It is provided a communication system comprising: an access system including a base station wirelessly receives information from a terminal, and an edge apparatus; a user data system including a mobile core apparatus configured to receive via the edge apparatus a signal transmitted from the base station; and a monitoring system including a packet analysis apparatus analyzes traffic used by the terminal from the user data copied by the edge apparatus, a wireless quality calculation unit calculates a wireless quality between the base station and the terminal, and a visualization unit visualizes a usage situation of a wireless resource based on calculation using information collected from the packet analysis apparatus, the mobile core apparatus, and the wireless quality calculation module, the visualization unit outputs data for displaying the usage situation of the wireless resource from an arrangement of the terminal, the calculated wireless quality, and the analyzed traffic.
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公开(公告)号：US20200304987A1
公开(公告)日：2020-09-24
申请号：US16752746
申请日：2020-01-27
Applicant: HITACHI, LTD.
Inventor： Mikio KUWAHARA , Masanori TAIRA
Abstract: A communication system includes: a terminal configured to perform a predetermined operation and including a communication device configured to transmit first information relating to the predetermined operation by a first communication method; and a server apparatus configured to receive information transmitted from the terminal. The communication device transmits second information indicating a status of the terminal by a second communication method different from the first communication method, and the server apparatus determines whether the first information is normally received from the terminal and, when determining that the first information is not normally received, performs predetermined processing depending on a communication status of the terminal based on the received second information.
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公开(公告)号：US20230422025A1
公开(公告)日：2023-12-28
申请号：US18122205
申请日：2023-03-16
Applicant: Hitachi, Ltd.
Inventor： Akihiro OHNUMA , Daisuke MASHIMO , Masayuki TAKASE , Yuji OISHI , Mikio KUWAHARA
IPC: H04W8/26
Abstract: It is provided a network system that transfers data, the network system comprising: a first network; a second network connected with the first network and to which a server is connected; a third network connected with the first network and in which a terminal is accommodated; a terminal identification device, wherein the terminal identification device is configured to hold terminal identification information in which the address information of the gateway device in the first network, an identifier of the terminal, and the connection availability of the terminal to the second network are associated with each other, determine the connection availability of the terminal to the second network based on the terminal identification information, and acquire the address information of the gateway device in the first network and the identifier of the terminal from the gateway device to register or update the terminal identification information.
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Patent Agency Ranking
6.发明申请WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION METHOD, AND BASE STATION 审中-公开无线通信系统，无线通信方法和基站公开(公告)号：US20150065147A1
公开(公告)日：2015-03-05
申请号：US14447996
申请日：2014-07-31
Applicant: HITACHI, LTD.
Inventor： Mikio KUWAHARA
CPC classification number: H04W36/32 , H04L63/0892 , H04L67/12 , H04W4/44 , H04W12/06
Abstract: When each of a plurality of base stations performs communication with a terminal using a different frequency channel, a first frequency channel for initial connection and a second frequency channel for efficiently using a frequency resource are divided, and handover from a first base station having the first frequency channel and a second base station having the second frequency channel are performed by being led by a base station based on mobility of a terminal.
Abstract translation: 当多个基站中的每个基站使用不同的频率信道进行与终端的通信时，分割用于初始连接的第一频率信道和用于有效地使用频率资源的第二频率信道，并且从具有第一信道的第一基站进行切换 具有第二频道的第二基站由基站基于终端的移动性引导来执行。
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公开(公告)号：US20140226619A1
公开(公告)日：2014-08-14
申请号：US14258564
申请日：2014-04-22
Applicant: Hitachi, Ltd.
Inventor： Mikio KUWAHARA , Kenzaburo FUJISHIMA , Masanori TAIRA
CPC classification number: H04W72/1284 , H04L5/0005 , H04W52/0216 , H04W72/1231 , Y02D70/00
Abstract: To reduce power consumption of a mobile station, this invention provides a wireless communication method for communicating between a base station and a plurality of terminals using a plurality of channels, the channels being slots obtained by dividing frequency-divided carriers by time, in which the base station allocates a set of the channels which is composed of a plurality of neighboring carriers and/or a plurality of successive slots for the each terminal, and the base station allocates at least one of the channels included in the channel sets for packet transmission the terminals.
Abstract translation: 为了降低移动台的功率消耗，本发明提供了一种用于使用多个信道在基站与多个终端之间通信的无线通信方法，所述信道是通过按时间划分分频载波而获得的时隙，其中 基站为每个终端分配由多个相邻载波和/或多个连续时隙组成的信道集合，并且基站分配包括在信道集中的信道中的至少一个用于分组传输 终端。
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公开(公告)号：US20240215006A1
公开(公告)日：2024-06-27
申请号：US17911765
申请日：2022-02-14
Applicant: Hitachi, Ltd.
Inventor： Hiromu KAMEI , Mikio KUWAHARA , Ryo NAKANO , Ryosuke FUJIWARA
IPC: H04W72/0457 , H04L45/851 , H04W28/04 , H04W48/18
CPC classification number: H04W72/0457 , H04L45/851 , H04W28/04 , H04W48/18
Abstract: To determine a communication path satisfying communication requirements depending on an operation of an application, it is provided a management device for selecting a communication path that satisfies communication requirements for an application operating on a terminal, the management device comprising: an event detection module configured to detect, as an event, one of an operation change, an increase, or a decrease of the application which is accompanied by a change in the communication requirements; app information for managing the communication requirements for each operation of the application; communication path information for managing communication quality of each communication path; and a communication control method calculation module configured to determine, by referring to the app information and the communication path information, a communication control method that satisfies the communication requirements for the application from which the event has been detected, and notify a communication control device of the determined communication control method.
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公开(公告)号：US20190281527A1
公开(公告)日：2019-09-12
申请号：US16280555
申请日：2019-02-20
Applicant: Hitachi, Ltd.
Inventor： Mikio KUWAHARA , Makiko SATOH
Abstract: To improve line utilization efficiency in short-cycle data collection, it is provided a method of managing communication in a communication system, the communication system including: an aggregation unit configured to receive information through a communication path from a plurality of terminals, which are sources of information transmission; and a reservation unit configured to determine, for each of the plurality of terminals, timing at which the terminal transmits a signal, the method comprising steps of: receiving, by the reservation unit, a relative time specified by a user as a time at which the terminal transmits the information; and determining, by the reservation unit, as scheduling information, an absolute time unique throughout the communication system so that interference with another communication session is avoided when the terminal holds communication at the relative time.
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公开(公告)号：US20160095038A1
公开(公告)日：2016-03-31
申请号：US14855711
申请日：2015-09-16
Applicant: Hitachi, Ltd.
Inventor： Mikio KUWAHARA
CPC classification number: H04W36/22 , H04B7/18506 , H04W36/0072
Abstract: When a frequency band which can be utilized by a radio communication system is divided into multiple partial frequency bands and one or more partial frequency bands are allocated to multiple base stations, each base station reports to a control station information for receiving a signal transmitted by a terminal and a number of connected terminals for every partial frequency band. The control station determines a load of each partial frequency band based on the information received from each base station. Regarding a terminal group that performs communication utilizing the partial frequency band on which the load is generated, the control station delivers information for receiving a signal transmitted by the terminal group to each base station and instructs interference measurement of the terminal group. The control station determines necessity of a handover, a handover destination base station, and a frequency and performs a base station-led handover.
Abstract translation: 当无线电通信系统可以利用的频带被划分成多个部分频带并且一个或多个部分频带被分配给多个基站时，每个基站向控制站报告用于接收由一个 端子和每个部分频带的多个连接端子。 控制站基于从每个基站接收的信息来确定每个部分频带的负载。 关于利用产生负载的部分频带进行通信的终端组，控制站向各基站发送用于接收由终端组发送的信号的信息，并指示终端组的干扰测量。 控制站确定切换的必要性，切换目的地基站和频率，并执行基站牵引切换。
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