JP3801123B2 - 無線システムおよびそのサーバーならびにその基地局 - Google Patents

無線システムおよびそのサーバーならびにその基地局 Download PDF

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Publication number
JP3801123B2
JP3801123B2 JP2002260772A JP2002260772A JP3801123B2 JP 3801123 B2 JP3801123 B2 JP 3801123B2 JP 2002260772 A JP2002260772 A JP 2002260772A JP 2002260772 A JP2002260772 A JP 2002260772A JP 3801123 B2 JP3801123 B2 JP 3801123B2
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Japan
Prior art keywords
base station
clock
terminal
reception time
base stations
Prior art date
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Expired - Fee Related
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JP2002260772A
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English (en)
Japanese (ja)
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JP2004101254A (ja
JP2004101254A5 (enExample
Inventor
敦 荻野
隆 矢野
克彦 恒原
良太 山崎
雅昭 志田
秀哉 鈴木
信数 土居
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Hitachi Ltd
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Hitachi Ltd
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Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2002260772A priority Critical patent/JP3801123B2/ja
Priority to EP20030013374 priority patent/EP1396730B1/en
Priority to US10/463,608 priority patent/US7167712B2/en
Priority to CN031491308A priority patent/CN1480873B/zh
Publication of JP2004101254A publication Critical patent/JP2004101254A/ja
Publication of JP2004101254A5 publication Critical patent/JP2004101254A5/ja
Application granted granted Critical
Publication of JP3801123B2 publication Critical patent/JP3801123B2/ja
Priority to US11/633,127 priority patent/US7353032B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205Details
    • G01S5/0221Receivers
    • G01S5/02213Receivers arranged in a network for determining the position of a transmitter
    • G01S5/02216Timing or synchronisation of the receivers
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/06Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009Transmission of position information to remote stations
    • G01S5/0045Transmission from base station to mobile station
    • G01S5/0054Transmission from base station to mobile station of actual mobile position, i.e. position calculation on base station
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/0009Transmission of position information to remote stations
    • G01S5/0081Transmission between base stations
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
    • G01S5/0205Details
    • G01S5/021Calibration, monitoring or correction

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
JP2002260772A 2002-09-06 2002-09-06 無線システムおよびそのサーバーならびにその基地局 Expired - Fee Related JP3801123B2 (ja)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2002260772A JP3801123B2 (ja) 2002-09-06 2002-09-06 無線システムおよびそのサーバーならびにその基地局
EP20030013374 EP1396730B1 (en) 2002-09-06 2003-06-17 Method, system and apparatus for detecting a position of a terminal in a network
US10/463,608 US7167712B2 (en) 2002-09-06 2003-06-18 Method, system, and apparatus for detecting a position of a terminal in a network
CN031491308A CN1480873B (zh) 2002-09-06 2003-06-18 用于检测终端在网络中位置的方法、系统和装置
US11/633,127 US7353032B2 (en) 2002-09-06 2006-12-04 Method, system, and apparatus for detecting a position of a terminal in a network

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002260772A JP3801123B2 (ja) 2002-09-06 2002-09-06 無線システムおよびそのサーバーならびにその基地局

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2004360684A Division JP4239961B2 (ja) 2004-12-14 2004-12-14 無線システムおよびそのサーバーならびにその基地局

Publications (3)

Publication Number Publication Date
JP2004101254A JP2004101254A (ja) 2004-04-02
JP2004101254A5 JP2004101254A5 (enExample) 2005-07-28
JP3801123B2 true JP3801123B2 (ja) 2006-07-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002260772A Expired - Fee Related JP3801123B2 (ja) 2002-09-06 2002-09-06 無線システムおよびそのサーバーならびにその基地局

Country Status (4)

Country Link
US (2) US7167712B2 (enExample)
EP (1) EP1396730B1 (enExample)
JP (1) JP3801123B2 (enExample)
CN (1) CN1480873B (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009042236A (ja) * 2008-09-12 2009-02-26 Hitachi Ltd 無線システムおよびそのサーバーならびにその基地局
WO2010035534A1 (ja) * 2008-09-26 2010-04-01 ブラザー工業株式会社 移動局測位システム

Families Citing this family (107)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1285317A1 (en) * 2000-05-19 2003-02-26 Netscape Communications Adaptive multi-tier authentication system
JP3543769B2 (ja) * 2001-02-19 2004-07-21 株式会社日立製作所 移動端末の位置測定を行う装置
JP3801123B2 (ja) * 2002-09-06 2006-07-26 株式会社日立製作所 無線システムおよびそのサーバーならびにその基地局
US8483717B2 (en) 2003-06-27 2013-07-09 Qualcomm Incorporated Local area network assisted positioning
JP2005123833A (ja) * 2003-10-16 2005-05-12 Hitachi Ltd 位置検出システム制御方法
GB0401767D0 (en) * 2004-01-27 2004-03-03 Koninkl Philips Electronics Nv Positioning systems
CN100340088C (zh) * 2004-03-25 2007-09-26 联想(北京)有限公司 一种无线局域网的终端定位方法
JP4367233B2 (ja) 2004-05-21 2009-11-18 株式会社日立製作所 位置検出方法、位置検出システムおよび位置検出サーバ装置
GB2416635A (en) * 2004-07-23 2006-02-01 Hewlett Packard Development Co Positioning system
US20060025154A1 (en) * 2004-07-28 2006-02-02 Meshnetworks, Inc. System and method for locating persons or assets using centralized computing of node location and displaying the node locations
CN100458465C (zh) * 2004-09-20 2009-02-04 英业达股份有限公司 目标追踪装置与使用该装置的目标追踪系统以及方法
JP4400395B2 (ja) 2004-09-27 2010-01-20 株式会社日立製作所 位置算出方法およびそのプログラム
JP4747559B2 (ja) * 2004-11-12 2011-08-17 株式会社日立製作所 無線位置検出システムおよびそのサーバおよび基地局および端末
JP4693405B2 (ja) * 2004-12-17 2011-06-01 株式会社日立製作所 ノード位置測位システム、無線基地局及び位置測定方法
US7751833B2 (en) * 2005-03-15 2010-07-06 Nextel Communications Inc. System and method for determining a base transceiver station location
JP4713911B2 (ja) * 2005-03-29 2011-06-29 株式会社コナミデジタルエンタテインメント 位置推定装置、位置推定方法、ならびに、プログラム
JP2006295664A (ja) 2005-04-13 2006-10-26 Hitachi Ltd 接続先基地局選択方法
EP1725061A3 (en) * 2005-05-19 2007-01-24 Alogics Co., LTD. Method and apparatus for positioning a portable subscriber station in a WiBro (Wireless Broadband) network, and repeater having the same
JP4568641B2 (ja) * 2005-05-27 2010-10-27 株式会社日立製作所 無線通信システム、ノード位置算出方法及びノード
US8798638B2 (en) * 2005-07-20 2014-08-05 Qualcomm Incorporated Methods and apparatus for providing base station position information and using position information to support timing and/or frequency corrections
US7991362B2 (en) * 2005-07-20 2011-08-02 Qualcomm Incorporated Methods and apparatus for supporting timing and/or frequency corrections in a wireless communications system
JP4609231B2 (ja) * 2005-08-05 2011-01-12 株式会社日立製作所 無線位置検出方法およびそのシステム
JP4829571B2 (ja) * 2005-09-09 2011-12-07 株式会社日立製作所 受信装置および測位測距システム
JP4881610B2 (ja) 2005-11-30 2012-02-22 株式会社日立製作所 測定システム及び管理装置及びその処理分散方法
JP2007212424A (ja) * 2006-01-10 2007-08-23 Rcs:Kk 位置検知装置および位置検知プログラム
JP2007187639A (ja) * 2006-01-16 2007-07-26 Fujitsu Ltd 無線測位システム
JP4689480B2 (ja) * 2006-01-27 2011-05-25 三菱電機株式会社 測位端末及び測位システム
US9274207B2 (en) * 2006-02-01 2016-03-01 Zih Corp. System and method for determining signal source location in wireless local area network
WO2007094708A1 (en) * 2006-02-15 2007-08-23 Telefonaktiebolaget Lm Ericsson (Publ) Accuracy assessment in assisted gps positioning
US7477191B2 (en) * 2006-03-03 2009-01-13 Cisco Technology, Inc. System and method for performing time difference of arrival location without requiring a common time base or clock calibration
KR100766476B1 (ko) 2006-03-14 2007-10-12 주식회사 엠티아이 직교주파수 분할 다중 이동통신 중계기에서의 위치파악을위한 시스템 및 방법
JP2007248362A (ja) * 2006-03-17 2007-09-27 Hitachi Ltd 端末測位システム及び位置測定方法
TW200801570A (en) * 2006-06-12 2008-01-01 Mitac Int Corp Group global positioning system
JP2008002888A (ja) * 2006-06-21 2008-01-10 Fujitsu Ltd 無線測位システム
US7570962B2 (en) * 2006-07-12 2009-08-04 Intel Corporation Wireless access network base station and method for determining location information for a mobile station using uplink time-difference of arrival
US8576829B2 (en) * 2006-08-08 2013-11-05 Aeroscout, Ltd. Multi-channel TDOA system
JP2008039738A (ja) * 2006-08-10 2008-02-21 Fujitsu Ltd 測位方法
JP4750660B2 (ja) 2006-09-27 2011-08-17 株式会社日立製作所 受信装置及び測位システム並びに測位方法
JP4853218B2 (ja) * 2006-10-13 2012-01-11 株式会社日立製作所 測位システム
JP5382415B2 (ja) * 2006-11-14 2014-01-08 日本電気株式会社 無線携帯端末を利用したコンテンツの配信システム及びその配信方法
US8102825B2 (en) 2006-11-30 2012-01-24 Kyocera Corporation Detection of a multi-mode portable communication device at a mesh network
US7978667B2 (en) * 2006-11-30 2011-07-12 Kyocera Corporation Management of WLAN and WWAN communication services to a multi-mode wireless communication device
US9532399B2 (en) 2006-11-30 2016-12-27 Kyocera Corporation Apparatus, system and method for managing wireless local area network service to a multi-mode portable communication device
US7969930B2 (en) * 2006-11-30 2011-06-28 Kyocera Corporation Apparatus, system and method for managing wireless local area network service based on a location of a multi-mode portable communication device
US7920875B2 (en) * 2006-12-01 2011-04-05 Trueposition, Inc. Subscriptionless location of wireless devices
US7797000B2 (en) * 2006-12-01 2010-09-14 Trueposition, Inc. System for automatically determining cell transmitter parameters to facilitate the location of wireless devices
US9791545B2 (en) * 2006-12-07 2017-10-17 Digimarc Corporation Space-time calibration system and method
US8451763B2 (en) * 2006-12-07 2013-05-28 Digimarc Corporation Wireless local area network-based position locating systems and methods
US8421675B2 (en) 2006-12-07 2013-04-16 Digimarc Corporation Systems and methods for locating a mobile device within a cellular system
JP2008228163A (ja) * 2007-03-15 2008-09-25 Nec Corp 三次元座標による捜索対象の位置通知システム、その方法及びそのプログラム
US8103285B2 (en) * 2007-04-19 2012-01-24 Kyocera Corporation Apparatus, system and method for determining a geographical location of a portable communication device
JP5135946B2 (ja) * 2007-08-14 2013-02-06 富士通株式会社 無線測位システム
JP2008054351A (ja) * 2007-10-25 2008-03-06 Hitachi Ltd 無線位置検出システムおよびそのサーバおよび基地局および端末
CN101453695B (zh) * 2007-11-30 2011-04-20 华为技术有限公司 一种定位测量方法、系统和装置
US7969963B2 (en) * 2007-12-19 2011-06-28 Mitsubishi Electric Research Laboratories, Inc. Method for estimating relative clock frequency offsets to improve radio ranging errors
JP2009174964A (ja) * 2008-01-23 2009-08-06 Sumitomo Electric Ind Ltd 位置特定装置及び位置特定システム
US8233433B2 (en) 2008-02-26 2012-07-31 Kyocera Corporation Apparatus, system and method for initiating WLAN service using beacon signals
JP5031682B2 (ja) 2008-06-25 2012-09-19 キヤノン株式会社 データ制御装置、データ制御方法およびプログラム
DE102008032749A1 (de) * 2008-07-11 2010-05-06 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur Ortsbestimmung
US8614975B2 (en) 2008-09-19 2013-12-24 Qualcomm Incorporated Synchronizing a base station in a wireless communication system
US9037155B2 (en) 2008-10-28 2015-05-19 Sven Fischer Time of arrival (TOA) estimation for positioning in a wireless communication network
KR101210604B1 (ko) 2008-12-03 2012-12-11 한국전자통신연구원 단말 위치 결정 장치 및 방법
US20100136999A1 (en) * 2008-12-03 2010-06-03 Electronics And Telecommunications Research Institute Apparatus and method for determining position of terminal
US8982851B2 (en) * 2009-01-06 2015-03-17 Qualcomm Incorporated Hearability improvements for reference signals
US7983185B2 (en) * 2009-02-12 2011-07-19 Zulutime, Llc Systems and methods for space-time determinations with reduced network traffic
US8165577B2 (en) * 2009-03-19 2012-04-24 Kyocera Corporation Pilot signal transmission management
US8688139B2 (en) 2009-09-10 2014-04-01 Qualcomm Incorporated Concurrent wireless transmitter mapping and mobile station positioning
BR112012008806A2 (pt) 2009-10-14 2019-09-24 Abb Research Ltd controle sem fio de dispositivos de comutação de rede de energia.
KR101162727B1 (ko) 2009-11-06 2012-07-05 최옥재 위치 측정을 위한 기준신호 송출 방법 및 시스템, 이를 이용한 위치 측정 방법, 장치 및 시스템, 이를 이용한 시각 동기 방법 및 장치
WO2011069552A1 (en) 2009-12-10 2011-06-16 Nortel Networks Limited Method, arrangement and computer program product for clocking
KR101868819B1 (ko) 2010-06-11 2018-06-19 스카이후크 와이어리스, 인크. 무선 액세스 포인트의 비콘 안정도를 측정하기 위한 방법 및 시스템
US9091746B2 (en) * 2010-07-01 2015-07-28 Qualcomm Incorporated Determination of positions of wireless transceivers to be added to a wireless communication network
US8463290B2 (en) 2010-07-09 2013-06-11 Digimarc Corporation Mobile device positioning in dynamic groupings of communication devices
WO2012059903A2 (en) * 2010-11-06 2012-05-10 Decawave Ltd. A wireless access point clock synchronization system
US20120120874A1 (en) * 2010-11-15 2012-05-17 Decawave Limited Wireless access point clock synchronization system
WO2012081740A1 (ko) * 2010-12-14 2012-06-21 Choi Ok Jae 위치 측정을 위한 기준신호 송출 방법 및 시스템, 이를 이용한 위치 측정 방법, 장치 및 시스템, 이를 이용한 시각 동기 방법 및 장치
JP5121969B2 (ja) * 2011-04-28 2013-01-16 株式会社日立製作所 受信装置および測位測距システム
US8909244B2 (en) * 2011-06-28 2014-12-09 Qualcomm Incorporated Distributed positioning mechanism for wireless communication devices
CN102869089B (zh) * 2011-07-05 2015-11-25 北京惠盈科技有限公司 移动终端定位方法及系统
US8521181B2 (en) 2011-09-19 2013-08-27 Qualcomm Incorporated Time of arrival based positioning system
CN103329603A (zh) * 2011-11-15 2013-09-25 戴卡维夫有限公司 一种无线接入点时钟同步系统
WO2013100970A1 (en) * 2011-12-28 2013-07-04 Intel Corporation Transmitter precoding for optimizing positioning performance
US9282471B2 (en) 2012-03-21 2016-03-08 Digimarc Corporation Positioning systems for wireless networks
US8626419B2 (en) * 2012-04-27 2014-01-07 Fleetmatics Irl Limited System and method for automated identification of frequent stop locations for vehicle fleets
US9514469B2 (en) 2013-04-21 2016-12-06 International Business Machines Corporation Identification of consumers based on a unique device ID
JP6033174B2 (ja) * 2013-07-04 2016-11-30 Kddi株式会社 距離推定システム
CN105580461B (zh) * 2013-07-26 2018-09-21 新加坡科技研究局 用于对移动通信装置定位的方法和定位装置
US10111252B2 (en) * 2014-02-10 2018-10-23 Telefonaktiebolaget Lm Ericsson (Publ) Methods and devices for random access preamble shifting
JP6396664B2 (ja) * 2014-03-26 2018-09-26 株式会社Soken 位置推定装置
EP3151030A4 (en) * 2014-07-22 2017-11-01 Huawei Technologies Co., Ltd. Access point, terminal and wireless fidelity (wifi) indoor locating method
WO2016119234A1 (zh) * 2015-01-30 2016-08-04 华为技术有限公司 一种基于wifi系统室内定位装置及方法
JP6592912B2 (ja) * 2015-02-13 2019-10-23 株式会社国際電気通信基礎技術研究所 通信システム、受信装置、サーバ、信号処理方法、波源位置算出方法、及びプログラム
JP2016184861A (ja) * 2015-03-26 2016-10-20 京セラ株式会社 無線通信システム、基地局、管理サーバおよび端末位置推定方法
JP6584825B2 (ja) * 2015-05-18 2019-10-02 株式会社東芝 マルチスタティックレーダシステム、および同期監視方法
US10621214B2 (en) 2015-10-15 2020-04-14 Verizon Patent And Licensing Inc. Systems and methods for database geocoding
CN108293239A (zh) * 2016-08-05 2018-07-17 霍尼韦尔国际公司 包括提供移动台可以从其确定它的位置的信息的基站的系统
WO2018113997A1 (en) * 2016-12-23 2018-06-28 Huawei Technologies Co., Ltd. Method for obtaining relatively accurate timings for location measurement
CN107483136A (zh) * 2017-08-09 2017-12-15 北京纳飞时空信息技术有限公司 一种固定通信设备间的时钟同步方法
WO2020078570A1 (en) 2018-10-19 2020-04-23 Nokia Technologies Oy Positioning with multiple access points
CN109459724B (zh) * 2018-12-03 2023-10-27 江苏云巅电子科技有限公司 基于现场测距信息的一键实时标定系统及标定方法
WO2020172014A1 (en) * 2019-02-24 2020-08-27 Locix, Inc. Systems and methods for precise radio frequency localization using time sweep time difference of arrival
CN109799479B (zh) * 2019-03-06 2020-12-08 珠海格力电器股份有限公司 一种时钟定位方法、装置、存储介质及通信系统
CN110784822B (zh) * 2019-10-31 2021-06-15 广东博智林机器人有限公司 基站、基站定位的方法及相对应的设备
JP2021099289A (ja) * 2019-12-23 2021-07-01 株式会社Soken 車両用通信装置
CN114071692B (zh) * 2020-08-07 2023-08-01 大唐移动通信设备有限公司 发送通道时延的校正方法、装置及存储介质
EP4209018A4 (en) * 2021-01-18 2023-10-18 ZTE Corporation TIME-BASED POSITIONING TECHNIQUES
CN116367302A (zh) * 2023-03-31 2023-06-30 成都精位科技有限公司 一种定位方法、系统及电子设备

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01235881A (ja) 1988-02-20 1989-09-20 Scient Dev Inc 位置ぎめシステム及び方法
AU7470191A (en) 1990-04-06 1991-11-11 Dean A Cooper Integral modulation
JP2818077B2 (ja) 1992-06-02 1998-10-30 キャメリク ヘラー アラン 目標標定システムおよび標定方法
JP3393417B2 (ja) 1993-12-22 2003-04-07 ソニー株式会社 測位システム
JPH08146110A (ja) 1994-11-16 1996-06-07 Clarion Co Ltd 位置測定システム
US5613205A (en) * 1995-03-31 1997-03-18 Telefonaktiebolaget Lm Ericsson System and method of locating a mobile terminal within the service area of a cellular telecommunication system
FI101445B1 (fi) * 1995-10-03 1998-06-15 Nokia Mobile Phones Ltd Matkaviestimen paikannusjärjestelmä
AUPN733395A0 (en) * 1995-12-22 1996-01-25 University Of Technology, Sydney Location and tracking system
WO1998052376A1 (en) * 1997-05-09 1998-11-19 Nokia Telecommunications Oy A method for determining timing differences between radio transmitters and a radio network incorporating the same
JP2000156882A (ja) 1998-11-19 2000-06-06 Nippon Telegr & Teleph Corp <Ntt> Phs端末位置情報システム、位置情報取得装置及びphs端末
US6493539B1 (en) * 1999-07-28 2002-12-10 Lucent Technologies Inc. Providing an accurate timing source for locating the geographical position of a mobile
GB2386801B (en) * 1999-08-24 2004-03-24 Roke Manor Research A method of locating a mobile station within a telecommunications cell forming part of a telecommunications system
CN1282692A (zh) * 2000-01-25 2001-02-07 庄大川 多功能组合定位通讯系统用户终端
JP2001264090A (ja) 2000-03-21 2001-09-26 Nippon Telegr & Teleph Corp <Ntt> 位置利用情報案内システム
JP3673700B2 (ja) 2000-06-27 2005-07-20 株式会社日立製作所 スペクトル拡散信号を用いた測距及び位置測定方法、その方法を行う装置
KR100346223B1 (ko) * 2000-09-25 2002-08-01 삼성전자 주식회사 이동통신 시스템에서 홈-존 리스트 자동생성 방법
JP4226325B2 (ja) * 2000-11-14 2009-02-18 シンボル テクノロジーズ インコーポレイテッド 通信ネットワークのアセット位置を識別する方法及び装置
US7046657B2 (en) 2000-12-20 2006-05-16 Wherenet Corp Wireless local area network system with mobile access point station determination
JP3461167B2 (ja) 2001-02-07 2003-10-27 株式会社日立製作所 位置計算方法及び位置算出装置
JP3801123B2 (ja) * 2002-09-06 2006-07-26 株式会社日立製作所 無線システムおよびそのサーバーならびにその基地局
JP2005006287A (ja) * 2003-05-20 2005-01-06 Hitachi Ltd パイロット信号の送受信方法及び基地局装置及び端末装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009042236A (ja) * 2008-09-12 2009-02-26 Hitachi Ltd 無線システムおよびそのサーバーならびにその基地局
WO2010035534A1 (ja) * 2008-09-26 2010-04-01 ブラザー工業株式会社 移動局測位システム

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