公开(公告)号：US20160198458A1

公开(公告)日：2016-07-07

申请号：US15072781

申请日：2016-03-17

Applicant: Hitachi, Ltd.

Inventor： Go ONO ,  Kenzaburo FUJISHIMA ,  May TAKADA ,  Koki UWANO

IPC: H04W72/04 ,  H04W28/02 ,  H04W40/06 ,  H04B7/04 ,  H04W72/12 ,  H04L5/00

CPC classification number: H04W72/0426 ,  H04B7/024 ,  H04B7/0413 ,  H04L5/0035 ,  H04L5/0055 ,  H04L5/0057 ,  H04W28/0236 ,  H04W40/06 ,  H04W72/1236 ,  H04W88/02 ,  H04W88/08 ,  H04W88/16

Abstract: It is provided a wireless communication system comprising base stations that transmit data to a terminal with cooperation by the base stations. The terminal communicates with the base stations. The terminal periodically transmits, to one of the base stations, information necessary for data transmission from a single base station out of the base stations. Each of the base stations determines whether the terminal needs data transmission through a cooperation among the base stations, and transmits a cooperation information transmission instruction to the terminal, which includes information necessary to execute the data transmission in order to cooperate among the base stations in the case where it is determined that the terminal needs the data transmission through the cooperation among the base stations. The terminal transmits the cooperation information to the base stations in a case of receiving the cooperation information transmission instruction.

Abstract translation: 提供了一种无线通信系统，其包括基站，其通过基站的协作向终端发送数据。 终端与基站进行通信。 终端周期性地向基站之一发送从基站中的单个基站进行数据传输所需的信息。 每个基站确定终端是否需要通过基站之间的协作进行数据传输，并且向终端发送协作信息传输指令，其包括执行数据传输所必需的信息，以便在基站中进行协作 确定终端需要通过基站之间的协作进行数据传输的情况。 在接收合作信息发送指示的情况下，终端向基站发送合作信息。

公开(公告)号：US20230075902A1

公开(公告)日：2023-03-09

申请号：US17867757

申请日：2022-07-19

Applicant: Hitachi, Ltd.

Inventor： Go ONO ,  Hajime KANZAKI ,  Eriko TAKEDA

IPC: H04B17/318 ,  H04B17/391 ,  H04W16/22

Abstract: The system stores process information including information on processes before starting at a manufacturing site, and management information that manages radio performance estimation methods usable for each of applications and information for determining a processing time of each of the radio performance estimation methods. The process information includes information on applications used in each process of the processes and information on a time associated with each process. The system refers to the process information and the management information so as to determine radio performance estimation methods usable in each process, and refers to the process information and the management information so as to select a wireless communication method, through which radio performance estimation processing is completed by a time associated with each process, from the radio performance estimation methods usable in each process.

公开(公告)号：US20160057674A1

公开(公告)日：2016-02-25

申请号：US14235464

申请日：2013-03-15

Applicant: HITACHI, LTD.

Inventor： Eriko TAKEDA ,  Takashi ISHIKAWA ,  Satoshi TAMAKI ,  Go ONO ,  Katsuhiko TSUNEHARA ,  Kenzaburo FUJISHIMA

IPC: H04W36/16 ,  H04W36/08

CPC classification number: H04W36/16 ,  H04W36/08 ,  H04W48/20

Abstract: The invention is intended to, even in a situation where there are many candidate wireless base stations (WBSs) to which a mobile terminal (MT) may connect, get information of communication conditions between the MT and each of those WBSs and determine an WBS to which the MT should connect in a shorter time. A coverage area of the first WBS is overlapped partially at least by a coverage area of the second WBS. The MT transmits a signal for connection using a predetermined frequency. Upon receiving the signal for connection, the second WBSs each notify the WBS communication manager of their reception results of the signal for connection. The WBS communication manager selects a second WBS to communicate with the MT based on the reception results and notifies the selected second WBS to transmit a response signal to the signal for connection to the MT.

Abstract translation: 本发明即使在移动终端（MT）可以连接有许多候选无线基站（WBS）的情况下，获得MT与这些WBS中的每一个之间的通信条件的信息，并且确定WBS到 MT应该在更短的时间内连接。 第一WBS的覆盖区域至少部分地被第二WBS的覆盖区域重叠。 MT使用预定频率发送用于连接的信号。 在接收到用于连接的信号时，第二WBS通知WBS通信管理器其用于连接的信号的接收结果。 WBS通信管理器基于接收结果选择第二WBS与MT进行通信，并通知所选择的第二WBS向与MT连接的信号发送响应信号。