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1. 发明专利

JP2006226740A POSITIONING SYSTEM AND RADIO BASE STATION 审中-公开
公开(公告)号：JP2006226740A
公开(公告)日：2006-08-31
申请号：JP2005038568
申请日：2005-02-16
申请人： HITACHI LTD
发明人： MIZUGAKI KENICHI , FUJIWARA RYOSUKE
IPC分类号： G01S5/06 , H04W64/00
摘要： PROBLEM TO BE SOLVED: To realize small-sizing of base station and cost reduction by reducing the number of matched filter necessary for a base station in a radio determination system. SOLUTION: Signals with the same waveform but different polarity are allotted to a signal for synchronizing and a signal for delay measurement. Thus, two kinds of signals are detected with a matched filter, and the two signals can be discriminated moreover by an easy means due to the difference in the polarities. COPYRIGHT: (C)2006,JPO&NCIPI

2. 发明专利

JP2009077190A Radio communication network system and positioning system using the same 审中-公开
标题翻译：无线电通信网络系统和使用该无线电通信系统的定位系统
公开(公告)号：JP2009077190A
公开(公告)日：2009-04-09
申请号：JP2007244647
申请日：2007-09-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ONO TAKEKAZU , FUJIWARA RYOSUKE , NAKAGAWA SHIGEO , MIYAZAKI SUKEYUKI
IPC分类号： H04W52/02 , G01S5/06 , H04W4/04 , H04W64/00 , H04W76/02 , H04W88/06
CPC分类号： Y02D70/00
摘要： PROBLEM TO BE SOLVED: To reduce power consumption of an entire network while satisfying communication performance needed for a network system. SOLUTION: In the network system having: a transmitter which performs transmission by both of a coherent system and a non-coherent system; and a receiver performing switching between the coherent system and the non-coherent system, receiving systems of the receiver are switched according to detected communication quality. COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了在满足网络系统所需的通信性能的同时降低整个网络的功耗。解决方案：在具有：通过相干系统和非相干系统进行传输的发射机的网络系统中; 以及在相干系统和非相干系统之间执行切换的接收机，根据检测到的通信质量来切换接收机的接收系统。版权所有（C）2009，JPO＆INPIT

3. 发明专利

JP2007147350A Radio communications positioning system 审中-公开
标题翻译：无线电通信定位系统
公开(公告)号：JP2007147350A
公开(公告)日：2007-06-14
申请号：JP2005339872
申请日：2005-11-25
申请人： Hitachi Ltd , Yokosuka Telecom Research Park:Kk , 株式会社日立製作所 , 株式会社横須賀テレコムリサーチパーク
发明人： MIYAZAKI SUKEYUKI , MIZUGAKI KENICHI , FUJIWARA RYOSUKE , KOBAYASHI SHINSUKE , OKUMA KOSUKE , HAYAKAWA MIKI , SAKAMURA TAKESHI
IPC分类号： G01S13/76 , G01S5/06 , H04W56/00 , H04W84/10
摘要： PROBLEM TO BE SOLVED: To classify and manage an object node wherein a system such as a base station for positioning or a server for performing node management performs data communication or positioning, to switch data reception or position detection of the node corresponding to the state, and to thereby heighten a driving efficiency of a system, in the radio communication positioning system for managing a plurality of nodes having only a transmission function.
SOLUTION: This radio communication positioning system for detecting the position of a transmission device by receiving a transmission signal from the transmission device, includes at least one or more transmission devices, at least one or more base stations constituted of at least one or more reception devices, and the server for performing data processing, data storage and position calculation by using data from the base stations. The system has characteristics wherein the transmission device has an information signal for requiring data communication or position detection on a prescribed spot of the transmission signal, and the base station and the server performs the data communication and the position detection corresponding to the request information signal in the transmission signal.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了分类和管理对象节点，其中诸如用于定位的基站或用于执行节点管理的服务器的系统执行数据通信或定位，以切换对应于所述节点的节点的数据接收或位置检测并且由此提高系统的驱动效率，用于管理具有传输功能的多个节点的无线通信定位系统。解决方案：用于通过从发送设备接收发送信号来检测发送设备的位置的无线电通信定位系统包括至少一个或多个传输设备，至少一个或多个基站由至少一个或多个更多接收装置，以及通过使用来自基站的数据进行数据处理，数据存储和位置计算的服务器。该系统具有其中发送装置具有用于在发送信号的规定点上进行数据通信或位置检测的信息信号的特征，并且基站和服务器进行与请求信息信号对应的数据通信和位置检测传输信号。版权所有（C）2007，JPO＆INPIT

4. 发明专利

JP2008085558A Receiver, receiver for positioning system using the same, and the positioning method 有权
标题翻译：接收器，使用它的定位系统的接收器和定位方法
公开(公告)号：JP2008085558A
公开(公告)日：2008-04-10
申请号：JP2006262104
申请日：2006-09-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJIWARA RYOSUKE , MIZUGAKI KENICHI , MIYAZAKI SUKEYUKI
IPC分类号： G01S5/06 , H04W64/00
CPC分类号： G01S5/0289 , G01S5/0215 , H04W64/00 , Y02D70/00 , Y02D70/142
摘要： PROBLEM TO BE SOLVED: To deduce the first path of an arrival signal, using a simple structure and at lower power consumption. SOLUTION: A nominal pulse repetition frequency or its integral multiple are A/D-converted at a frequency lower than the reciprocal of the pulse width, the A/D conversion timing is offset by the time resolution Δt and the reception signal is measured, data is stored in a RAM, and the first path output time is deduced, based on sequentially rearranging of the arrival times of the stored waveform data. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：推导出到达信号的第一路径，使用简单的结构和较低的功耗。解决方案：标称脉冲重复频率或其积分倍数以低于脉冲宽度倒数的频率进行A / D转换，A / D转换时序被时间分辨率Δt偏移，接收信号为基于存储的波形数据的到达时间的顺序重新排列，将数据存储在RAM中，并推导出第一路径输出时间。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007071819A Receiver, frequency deviation measuring unit, and positioning ranging system 有权
标题翻译：接收机，频偏偏差测量单元和定位系统
公开(公告)号：JP2007071819A
公开(公告)日：2007-03-22
申请号：JP2005261852
申请日：2005-09-09
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKAGAWA SHIGEO , MIYAZAKI SUKEYUKI , MIZUGAKI KENICHI , FUJIWARA RYOSUKE
IPC分类号： G01S5/06 , H04W64/00
CPC分类号： G01S5/06 , H04J3/0682
摘要： PROBLEM TO BE SOLVED: To measure a highly accurately time difference with a compact and a low-cost device with low power consumption in a system for performing ranging by measuring an arrival time of a signal. SOLUTION: The system has a node (to be positioned) for transmitting a positioning signal, a reference station for transmitting a reference signal, a plurality of base stations for receiving the positioning signal and the reference signal, and a server connected with the plurality of the base stations and a network. The plurality of the base stations measures the time difference and a frequency deviation with the reference station receiving the positioning signal and the reference signal by using a clock signal and a signal shifting the clock signal, and calculates the position of the node by the server on the basis of the measurement time difference and the frequency deviation. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：通过测量信号的到达时间来进行测距的系统中，通过具有低功耗的紧凑型和低成本设备来测量高精度的时间差。解决方案：系统具有用于发送定位信号的节点（待定位），用于发送参考信号的参考站，用于接收定位信号的多个基站和参考信号，以及与多个基站和网络。多个基站通过使用时钟信号和移位时钟信号的信号来测量时间差和参考站接收定位信号和参考信号的频率偏差，并且由服务器计算节点的位置测量时间差的基础和频率偏差。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006170891A Node position positioning system, radio base station, and position measuring method 有权
标题翻译：节点位置定位系统，无线基站和位置测量方法
公开(公告)号：JP2006170891A
公开(公告)日：2006-06-29
申请号：JP2004365939
申请日：2004-12-17
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUGAKI KENICHI , FUJIWARA RYOSUKE
IPC分类号： G01S5/06 , G01S19/09 , G01S19/42 , H04W64/00 , H04W84/10 , H04W88/08
CPC分类号： G01S5/021 , G01S5/06
摘要： PROBLEM TO BE SOLVED: To simplify structure of a base station. SOLUTION: This node position positioning system having a node, a reference station, the plurality of base stations, a server for calculating a position of the node, and a network for connecting the base stations with the server, the reference station is provided with a positioning signal reception part for receiving a positioning signal, and a reference signal preparation part for transmitting a reference signal after the positioning signal reception part receives the positioning signal, the each base station is provided with a signal reception part for receiving the positioning signal and the reference signal, a reception time measuring part for detecting specified patterns from the positioning signal and the reference signal received by the signal reception part, and for measuring a time in the detection, and a communication part for transmitting, to the server, time information generated from the time measured by the reception time measuring part, and the server is provided with a position calculation part for calculating the position of the node, based on the time information transmitted from the base each station. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了简化基站的结构。解决方案：该节点位置定位系统具有节点，参考站，多个基站，用于计算节点位置的服务器和用于将基站与服务器连接的网络，参考站是设置有用于接收定位信号的定位信号接收部分，以及用于在定位信号接收部分接收到定位信号之后发送参考信号的参考信号准备部分，每个基站设置有用于接收定位信号的信号接收部分信号和参考信号;接收时间测量部分，用于根据定位信号和由信号接收部分接收到的参考信号检测指定的模式，并用于测量检测中的时间;以及通信部分，用于向服务器发送，从由接收时间测量部分测量的时间产生的时间信息和服务器被提供位置计算部分，用于基于从基站各站发送的时间信息来计算节点的位置。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2015032955A 無線伝送システム、及びアクセスポイントを制御する方法有权
标题翻译：无线传输系统和接入点控制方法
公开(公告)号：JP2015032955A
公开(公告)日：2015-02-16
申请号：JP2013160526
申请日：2013-08-01
申请人：株式会社日立製作所 , Hitachi Ltd
发明人： NISHIMURA HARUKI , FUJIWARA RYOSUKE , KATAGISHI MAKOTO , MIYAZAKI SUKEYUKI
IPC分类号： H04W74/06 , H04W28/16
CPC分类号： H04W72/12 , H04W68/00
摘要：【課題】QoSを保証しながら、複数のアクセスポイントを連携させ、通信エリアを拡張する。【解決手段】一例において、無線伝送システムのアクセス制御装置は、複数のアクセスポイントが無線端末とポーリング通信を行うポーリング期間を開始する開始基準時刻を決定し、更新された第3の情報及び第4の情報に基づいて、ポーリング期間において、複数のアクセスポイントが前記無線端末とポーリング通信を行うタイミングを示すスケジューリング設定情報を作成する。アクセス制御装置は、複数のアクセスポイントのそれぞれに、ポーリング期間開始信号を送信する。複数のアクセスポイントのそれぞれは、受信したポーリング期間開始信号に基づいて、無線端末とポーリング通信を行う。【選択図】図1
摘要翻译：要解决的问题：通过协调多个接入点同时保证QoS来扩展通信区域。解决方案：在一个示例中，当多个接入点执行轮询通信时，无线电传输系统的接入控制器确定开始参考时间开始轮询周期并且创建调度设置信息，该调度设置信息指示当多个接入点在更新的第三信息和第四信息的基础上在轮询周期内执行与无线终端的轮询通信的定时。访问控制器向多个接入点中的每一个发送轮询周期开始信号。多个接入点中的每一个基于所接收的轮询周期开始信号来执行与无线终端的轮询通信。

8. 发明专利

JP2011229126A Adaptive frequency hopping in wireless network adopting time slot method 有权
标题翻译：无线网络中的自适应频率选择采用时隙方法
公开(公告)号：JP2011229126A
公开(公告)日：2011-11-10
申请号：JP2011039996
申请日：2011-02-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJIWARA RYOSUKE
IPC分类号： H04B1/7143 , H04J3/00 , H04W72/04 , H04W72/08
CPC分类号： H04B1/7143 , H04B1/715 , H04B2001/7154
摘要： PROBLEM TO BE SOLVED: To provide a wireless network system with a plurality of nodes sharing frequency hopping patterns.SOLUTION: A channel list table is provided including a channel list including a state of channels of the shared frequency hopping pattern including the channel which can be used for communication with a target node regarding respective transmission nodes. Then, a channel for the next allotted time slot is selected from the shared frequency hopping patterns and a channel list for the target node which is the transmission destination is selected from the channel list table. Next, whether or not the selected channel can be used is checked based on the selected channel list. The selected channel is set when the selected channel can be used. When the selected channel cannot be used, an alternative channel is calculated from the channel list instead of the selected channel.
摘要翻译：要解决的问题：提供具有共享跳频图案的多个节点的无线网络系统。解决方案：提供一种频道列表表，其包括包括共享跳频模式的信道状态的频道列表，该共享跳频模式包括可用于与目标节点通信相关传输节点的信道。然后，从共享跳频图案中选择下一个分配时隙的信道，并且从频道列表表中选择作为发送目的地的目标节点的频道列表。接下来，基于所选择的频道列表来检查是否可以使用所选择的频道。当选择的通道可以使用时，所选通道被设置。当所选择的频道不能被使用时，从频道列表而不是所选频道计算一个替代频道。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2010102549A Sensor network system, sensor node and base station 有权
标题翻译：传感器网络系统，传感器节点和基站
公开(公告)号：JP2010102549A
公开(公告)日：2010-05-06
申请号：JP2008274096
申请日：2008-10-24
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUJIWARA RYOSUKE , MIYAZAKI SUKEYUKI
IPC分类号： G08C15/00 , G08C17/00 , H04W4/04
CPC分类号： H04L67/12
摘要： PROBLEM TO BE SOLVED: To correct the time when acquiring sensing data by a simple hardware configuration. SOLUTION: The sensor network system includes: a base station for transmitting beacon signals at prescribed intervals to a plurality of sensor nodes, and a plurality of sensor nodes for measuring data and transmitting the acquired sensing data to the base station on the basis of the reception of the beacon signals transmitted from the base station. The plurality of sensor nodes acquire the time when receiving the beacon signals on the basis of an internal clock and transmit the acquired time to the base station, and the base station corrects the time of acquiring the sensing data on the basis of the reception time transmitted from the respective sensor nodes. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：通过简单的硬件配置来纠正获取传感数据的时间。传感器网络系统包括：用于以规定的间隔向多个传感器节点传送信标信号的基站和用于测量数据的多个传感器节点，并且基于该基站向基站发送所获取的感测数据接收从基站发送的信标信号。多个传感器节点获取基于内部时钟接收信标信号的时间，并将所获取的时间发送给基站，并且基站根据发送的接收时间来校正获取感测数据的时间来自相应的传感器节点。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2009033628A Radio system and communication method 审中-公开
标题翻译：无线电系统和通信方法
公开(公告)号：JP2009033628A
公开(公告)日：2009-02-12
申请号：JP2007197477
申请日：2007-07-30
申请人： Hitachi Ltd , Yokosuka Telecom Research Park:Kk , 株式会社日立製作所 , 株式会社横須賀テレコムリサーチパーク
发明人： MAEKI AKIRA , SAKAMURA TAKESHI , MOROKUMA TATESHI , MIYAZAKI SUKEYUKI , FUJIWARA RYOSUKE
IPC分类号： H04B7/26 , H04B1/719 , H04J13/00 , H04W48/02 , H04W52/02 , H04W84/10
CPC分类号： Y02D70/00 , Y02D70/40 , Y02D70/449
摘要： PROBLEM TO BE SOLVED: To significantly extend the battery life of a radio terminal while sharing a frequency with another radio system, without providing a DAA function to the radio terminal.
SOLUTION: Terminals 40 to 44 transmit data at predetermined time intervals. For example, a signal of the terminal 44 is received by base stations 32 and 33. Of the base stations 32 and 33, the base station 33 that is closer to the terminal 44 is designated as one that is to be in charge of the terminal 44, taking into consideration a state of reception in the past (the number of times of successful reception, etc.). Here, when a signal comes from another radio system that uses the same frequency band, a supervisory station 1 retrieves the terminal 44 that would cause interference from a history stored in a positioning server 50, and transmits to the base station 33 a command to stop transmission to the terminal 44. The terminal 44, when receiving the transmission stop command from the base station 33, stops the transmission.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：为了显着延长无线电终端的电池寿命，同时与另一无线电系统共享频率，而不向无线电终端提供DAA功能。
解决方案：端子40至44以预定的时间间隔发送数据。例如，终端44的信号由基站32和33接收。在基站32和33中，更接近终端44的基站33被指定为负责终端的基站 44，考虑到过去的接收状态（接收成功次数等）。这里，当信号来自使用相同频带的另一个无线电系统时，监控站1从存储在定位服务器50中的历史中检索将导致干扰的终端44，并向基站33发送停止命令终端44在从基站33接收到发送停止命令时停止发送。版权所有（C）2009，JPO＆INPIT

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