公开(公告)号：US20200044961A1

公开(公告)日：2020-02-06

申请号：US16054930

申请日：2018-08-03

Applicant: Hitachi, Ltd.

Inventor： Yusuke SHOMURA ,  Joydeep ACHARYA ,  Sudhanshu GAUR

IPC: H04L12/721 ,  H04L12/24 ,  H04L29/06 ,  H04L29/08 ,  H04L12/813

Abstract: This invention aim to improves the flexibility of data flows management from sensor to cloud, datalake or other system, which can manage the overall data flows within the system and control them dynamically. As a result, it can reduce transmission cost and storage cost properly.

公开(公告)号：US20150334042A1

公开(公告)日：2015-11-19

申请号：US14713396

申请日：2015-05-15

Applicant: Hitachi, Ltd.

Inventor： Rintaro KATAYAMA ,  Yusuke SHOMURA ,  Keisuke TAKEUCHI ,  Hiroto NAKAGAWA

IPC: H04L12/911 ,  H04W28/02 ,  H04W64/00

CPC classification number: H04W28/0205 ,  H04L12/4641 ,  H04L47/743 ,  H04W28/0284 ,  H04W64/00 ,  H04W64/003 ,  H04W76/10

Abstract: Provided is a technique of finely performing congestion determination and congestion control on a cellular communication system employing a C-RAN architecture. An instruction is given to a control device to acquire location information of a terminal in a cell of a C-RAN using a first message between network nodes, acquire a congestion indicator of the cell of the C-RAN using a second message between the network nodes, determine the occurrence of congestion of the cell based on the congestion indicator, identify a terminal staying in a cell in which congestion is occurring based on the location information of the terminal, and limit a maximum usable bandwidth of the specified terminal.

Abstract translation: 提供了一种在采用C-RAN架构的蜂窝通信系统上精细地执行拥塞确定和拥塞控制的技术。 给控制设备指示使用网络节点之间的第一消息来获取C-RAN的小区中的终端的位置信息，使用网络之间的第二消息获取C-RAN的小区的拥塞指示符 节点根据拥塞指标确定小区拥塞的发生，根据终端的位置信息，确定停留在发生拥塞的小区中的终端，并限制指定终端的最大可用带宽。

公开(公告)号：US20140094171A1

公开(公告)日：2014-04-03

申请号：US14040873

申请日：2013-09-30

Applicant: HITACHI, LTD.

Inventor： Ryouichi TANAKA ,  Koji WAKAYAMA ,  Tsuyoshi KAJITA ,  Yusuke SHOMURA

IPC: H04W64/00

CPC classification number: H04W64/00 ,  H04W68/04

Abstract: A paging signal is transmitted to plural base stations which are prioritized with the use of communication results between a wireless communication terminal and the base stations to provide means for suppressing a control signal traffic, and a bandwidth used for a control signal can be effectively used.

Abstract translation: 寻呼信号被发送到利用无线通信终端与基站之间的通信结果优先化的多个基站，以提供用于抑制控制信号业务的装置，并且可以有效地使用用于控制信号的带宽。

公开(公告)号：US20140064136A1

公开(公告)日：2014-03-06

申请号：US14010223

申请日：2013-08-26

Applicant: Hitachi, Ltd.

Inventor： Yusuke SHOMURA ,  Koji WAKAYAMA ,  Ryouichi TANAKA ,  Tsuyoshi KAJITA ,  Seiya KUDO

IPC: H04W24/08

CPC classification number: H04W24/08

Abstract: A communication system includes a mobile terminal, a base station, a first gateway device, a second gateway device, a flow measurement server, a quality management server, and an operational terminal. A predetermined flow is extracted by a quality management server, and the extracted flow is summarized for each communication path. A distribution of the communication quality of the flow for each communication path is displayed on a display unit of the operational terminal.

Abstract translation: 通信系统包括移动终端，基站，第一网关设备，第二网关设备，流测量服务器，质量管理服务器和操作终端。 由质量管理服务器提取预定的流程，并且针对每个通信路径总结提取的流程。 每个通信路径的流的通信质量的分布被显示在操作终端的显示单元上。

公开(公告)号：US20130329560A1

公开(公告)日：2013-12-12

申请号：US13869495

申请日：2013-04-24

Applicant: HITACHI, LTD.

Inventor： Yusuke SHOMURA ,  Nodoka MIMURA ,  Masashi YANO

IPC: H04W28/02

CPC classification number: H04W28/0247 ,  H04L47/30 ,  H04W28/0205

Abstract: Radio communication system includes mobile terminal (UE), plurality of base stations connected by radio to the UE, gateway apparatus (GW) connected to the plurality of base stations, and data distribution server (SV) which is connected to the GW over the Internet and which distributes data to the UE. UE transmits a first data request (DR) and a second DR to the data distribution server through the base station and the GW. When the GW receives the first DR from the base station, GW transmits the received first DR to the data distribution server independent of a radio transmission load state from the base station to the UE. When the GW receives second DR from the base station, GW transmits the received second data request to the data distribution server with delay in accordance with radio transmission load state from the base station.

Abstract translation: 无线电通信系统包括移动终端（UE），通过无线电连接到UE的多个基站，连接到多个基站的网关设备（GW）和通过因特网连接到GW的数据分发服务器（SV） 并将数据分发给UE。 UE通过基站和GW向数据分发服务器发送第一数据请求（DR）和第二DR。 当GW从基站接收到第一DR时，GW将接收到的第一DR发送到数据分发服务器，而与无线电传输负载状态无关，从基站到UE。 当GW从基站接收到第二DR时，GW根据来自基站的无线传输负载状态，延迟地将接收到的第二数据请求发送给数据分发服务器。