AR020131A1 - Metodo y aparato para medir el tiempo de llegada de una senal de radio, metodo y aparato para localizar la posicion de una estacion movil de comunicacionesen una red de comunicaciones inalambricas - Google Patents
Metodo y aparato para medir el tiempo de llegada de una senal de radio, metodo y aparato para localizar la posicion de una estacion movil de comunicacionesen una red de comunicaciones inalambricasInfo
- Publication number
- AR020131A1 AR020131A1 ARP990103947A ARP990103947A AR020131A1 AR 020131 A1 AR020131 A1 AR 020131A1 AR P990103947 A ARP990103947 A AR P990103947A AR P990103947 A ARP990103947 A AR P990103947A AR 020131 A1 AR020131 A1 AR 020131A1
- Authority
- AR
- Argentina
- Prior art keywords
- time
- radio
- station
- arrival
- mobile
- Prior art date
Links
- 238000010295 mobile communication Methods 0.000 title abstract 6
- 238000000034 method Methods 0.000 title 2
- 238000004891 communication Methods 0.000 abstract 2
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO 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
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/022—Means for monitoring or calibrating
- G01S1/026—Means for monitoring or calibrating of associated receivers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO 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
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-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
- G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
- H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
- H04W56/007—Open loop measurement
- H04W56/0075—Open loop measurement based on arrival time vs. expected arrival time
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO 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
- G01S2205/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S2205/001—Transmission of position information to remote stations
- G01S2205/008—Transmission of position information to remote stations using a mobile telephone network
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Se utiliza una estacion movil de comunicaciones (MS1) en una red de comunicaciones inalámbricas para medir los tiempos de llegada de senales de radiotransmitidas respectivamente por una pluralidad de transmisores de radio (23, 28) en la red. Laestac ion movil de comunicaciones es provista con informacion dediferencia de tiempo real (RTD) indicativa de diferencias entre una base de tiempo (60) utilizada por un transmisor de radio (23) que sirve a la estacion movilde comunicaciones y lasrespectiv as bases de tiempo utilizadas por los otros transmisores de radio. La estacion movil de comunicaciones determina, en respuestaa la informacion de diferencia de tiempo real y con relacion a la base de tiempo utilizada por el transmisor deradio que si rve a la estacion movil decomunicaciones, una pluralidad de puntos en el tiempo en los cuales se espera que lleguen las respectivas senales de radio a la estacion movil decomunicaciones. Para cada una de dichas senales de radio, laestacion movil de comunicaciones monitorea la llegada de la senal de radio durante un período detiempo posterior al punto en el tiempo en el cual se espera que llegue la senal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/131,150 US6490454B1 (en) | 1998-08-07 | 1998-08-07 | Downlink observed time difference measurements |
| US09/186,192 US6356763B1 (en) | 1998-08-07 | 1998-11-04 | Downlink observed time difference measurements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR020131A1 true AR020131A1 (es) | 2002-04-10 |
Family
ID=22448120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP990103947A AR020131A1 (es) | 1998-08-07 | 1999-08-06 | Metodo y aparato para medir el tiempo de llegada de una senal de radio, metodo y aparato para localizar la posicion de una estacion movil de comunicacionesen una red de comunicaciones inalambricas |
Country Status (5)
| Country | Link |
|---|---|
| US (2) | US6490454B1 (es) |
| KR (1) | KR100673153B1 (es) |
| AR (1) | AR020131A1 (es) |
| MY (1) | MY124250A (es) |
| ZA (1) | ZA200100723B (es) |
Families Citing this family (101)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI105725B (fi) * | 1998-04-08 | 2000-09-29 | Nokia Networks Oy | Laskentamenetelmä ja radiojärjestelmä |
| US7123628B1 (en) * | 1998-05-06 | 2006-10-17 | Lg Electronics Inc. | Communication system with improved medium access control sub-layer |
| US7215967B1 (en) * | 1998-12-22 | 2007-05-08 | Telefonaktiebolaget Lm Ericsson (Publ) | System and method for fast cold start of a GPS receiver in a telecommunications environment |
| FI108267B (fi) * | 1999-03-16 | 2001-12-14 | Nokia Corp | Tietojenvälitysmenetelmä |
| US6697344B1 (en) * | 1999-03-16 | 2004-02-24 | Northrop Grumman Corporation | Onboard initial entry processor for facilitating a satellite communication |
| US7151761B1 (en) * | 1999-03-19 | 2006-12-19 | Telefonaktiebolaget L M Ericsson (Publ) | Code reservation for interference measurement in a CDMA radiocommunication system |
| EP1181836B1 (en) * | 1999-05-05 | 2003-04-02 | Nokia Corporation | A method for positioning a mobile station |
| FI109169B (fi) * | 1999-07-02 | 2002-05-31 | Nokia Corp | Kontrollisignalointien järjestäminen tietoliikennejärjestelmässä |
| US6950665B2 (en) * | 2000-02-29 | 2005-09-27 | Pctel, Inc. | Methodology and system for generating a three-dimensional model of interference in a cellular wireless communication network |
| CN1131653C (zh) * | 2000-03-27 | 2003-12-17 | 信息产业部电信科学技术研究院 | 一种码分多址数字移动通信系统的小区初始搜索方法 |
| FR2808160B1 (fr) * | 2000-04-21 | 2004-05-28 | Mitsubishi Electric Inf Tech | Procede de determination de la position d'une station mobile d'un reseau de telecommunication mobile |
| US6687507B2 (en) | 2000-05-03 | 2004-02-03 | Telefonaktiebolaget Lm Ericsson (Publ) | Time of arrival estimation for edge/GSM |
| US6681099B1 (en) * | 2000-05-15 | 2004-01-20 | Nokia Networks Oy | Method to calculate true round trip propagation delay and user equipment location in WCDMA/UTRAN |
| US8060389B2 (en) | 2000-06-07 | 2011-11-15 | Apple Inc. | System and method for anonymous location based services |
| US6456234B1 (en) | 2000-06-07 | 2002-09-24 | William J. Johnson | System and method for proactive content delivery by situation location |
| US8073565B2 (en) | 2000-06-07 | 2011-12-06 | Apple Inc. | System and method for alerting a first mobile data processing system nearby a second mobile data processing system |
| GB0023366D0 (en) * | 2000-09-23 | 2000-11-08 | Koninkl Philips Electronics Nv | Mobile radio terminal and related method and system |
| EP1227602A1 (en) * | 2001-01-24 | 2002-07-31 | Lucent Technologies Inc. | Method for dynamic allocation of timeslots in a TDD communication system |
| US6665540B2 (en) * | 2001-02-02 | 2003-12-16 | Nokia Mobile Phones, Ltd. | Method and system for locating a mobile terminal in a cellular radio network |
| US7363043B2 (en) * | 2001-05-18 | 2008-04-22 | Southwest Research Institute | Passive GSM-based self-locating device |
| US20030007471A1 (en) * | 2001-07-03 | 2003-01-09 | Daisuke Terasawa | Operation of wideband code division multiple access base stations |
| GB2378335B (en) * | 2001-08-03 | 2005-09-28 | Roke Manor Research | Method of determining the position of a target |
| JP3394530B2 (ja) * | 2001-08-07 | 2003-04-07 | 松下電器産業株式会社 | セルサーチ装置およびセルサーチ方法 |
| US7962162B2 (en) * | 2001-08-07 | 2011-06-14 | At&T Intellectual Property Ii, L.P. | Simulcasting OFDM system having mobile station location identification |
| US6744747B2 (en) * | 2001-08-22 | 2004-06-01 | Qualcomm, Incorporated | Method & apparatus for W-CDMA handoff searching |
| KR100438546B1 (ko) * | 2001-10-26 | 2004-07-03 | 엘지전자 주식회사 | 이동통신 단말기의 자동 시간설정 방법 |
| WO2003041436A1 (en) * | 2001-11-05 | 2003-05-15 | Nokia Corporation | A method for identification of base stations and for checking measurement values of an observed time difference between transmissions from base stations |
| US7474994B2 (en) * | 2001-12-14 | 2009-01-06 | Qualcomm Incorporated | System and method for wireless signal time of arrival |
| CN100425013C (zh) | 2002-01-08 | 2008-10-08 | Ipr特许公司 | 在无线通信系统的反向链路中维持保持信道 |
| JP2003259433A (ja) * | 2002-02-28 | 2003-09-12 | Sony Corp | 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム |
| US20040203420A1 (en) * | 2002-04-10 | 2004-10-14 | Rick Roland R. | Method and apparatus for calculating a representative measurement from multiple data measurements |
| FR2839234B1 (fr) * | 2002-04-30 | 2004-08-27 | Nortel Networks Ltd | Procede de controle d'echanges de trames entre une unite de controle et au moins une station radio, et unite de controle pour la mise en oeuvre du procede |
| US20040048623A1 (en) * | 2002-06-18 | 2004-03-11 | Flannery James P. | Burst communications system and method |
| US6993318B2 (en) * | 2002-08-05 | 2006-01-31 | Technocom Corporation | System and method for network assisted calibration in a wireless network |
| US7359711B2 (en) * | 2002-10-31 | 2008-04-15 | Siemens Communications, Inc. | Methods and apparatus for improving accuracy of radio timing measurements |
| US20040087277A1 (en) * | 2002-10-31 | 2004-05-06 | Siemens Information And Communication Mobile Llc. | Method and apparatus for improving accuracy of radio timing measurements |
| US20060040706A1 (en) * | 2002-11-19 | 2006-02-23 | Shiquan Wu And John Litva | Hybrid space-time diversity beam forming system |
| US7231217B2 (en) * | 2002-12-31 | 2007-06-12 | Nokia Corporation | Determining neighbour lists |
| US7031727B2 (en) * | 2003-10-14 | 2006-04-18 | Baskin Brian L | Method of location using signals of unknown origin |
| US7327310B2 (en) | 2003-11-07 | 2008-02-05 | Global Locate, Inc. | Method and apparatus for managing time in a satellite positioning system |
| TW200629652A (en) * | 2003-11-24 | 2006-08-16 | Interdigital Tech Corp | Method and apparatus for utilizing a directional beam antenna in a wireless transmit/receive unit |
| WO2005060669A2 (en) * | 2003-12-19 | 2005-07-07 | Kennedy Joseph P | E-otd augmentation to u-tdoa location system |
| US7236746B2 (en) * | 2004-02-04 | 2007-06-26 | Pctel, Inc. | Method and apparatus for measurement and identification of co-channel interfering transmitters |
| EP1859293B1 (en) * | 2005-03-18 | 2010-10-13 | Seeker Wireless PTY Limited | Enhanced mobile location method and system |
| EP1866662A4 (en) * | 2005-03-18 | 2010-08-25 | Seeker Wireless Pty Ltd | ADVANCED MOBILEOCALIZATION |
| US7353034B2 (en) | 2005-04-04 | 2008-04-01 | X One, Inc. | Location sharing and tracking using mobile phones or other wireless devices |
| EP1872150B9 (en) * | 2005-04-08 | 2013-04-10 | WaveMarket, Inc. (d/b/a Location Labs) | Mobile location |
| CA2612746A1 (en) * | 2005-07-04 | 2007-01-11 | Samsung Electronics Co., Ltd. | Position measuring system and method using wireless broadband (wibro) signal |
| KR100769252B1 (ko) * | 2005-07-04 | 2007-10-23 | 삼성전자주식회사 | 휴대인터넷 신호를 이용한 위치 측정 시스템 및 방법 |
| US8265618B2 (en) * | 2005-10-24 | 2012-09-11 | Wavemarket, Inc. | Mobile service maintenance management |
| EP1952578A4 (en) * | 2005-11-04 | 2012-08-29 | Wavemarket Inc D B A Location Labs | PROFILE BASED COMMUNICATION SERVICE |
| US7945263B2 (en) * | 2005-11-29 | 2011-05-17 | Treble Investments Limited Liability Company | Mobile station handover for base stations with adaptive antenna system |
| US7643852B2 (en) | 2006-01-17 | 2010-01-05 | Noll John R | Method to calibrate RF paths of an FHOP adaptive base station |
| US8787840B2 (en) * | 2006-05-10 | 2014-07-22 | Robert Bosch Gmbh | Method and system employing wideband signals for RF wakeup |
| WO2008073257A1 (en) * | 2006-12-08 | 2008-06-19 | Xenoport, Inc. | Use of prodrugs of gaba analogs for treating diseases |
| KR100945338B1 (ko) | 2006-12-08 | 2010-03-08 | 엘지노텔 주식회사 | WiMAX 망에서의 위치 서비스 제공 방법 |
| EP1931165B1 (en) | 2006-12-08 | 2010-09-01 | LG - Nortel Co., Ltd. | Method of providing location services in WiMAX network |
| EP2140692A4 (en) * | 2007-03-13 | 2010-12-01 | Seeker Wireless Pty Ltd | BETTER ZONE DETERMINATION |
| CN101043261B (zh) * | 2007-03-19 | 2012-05-30 | 威盛电子股份有限公司 | 邻近通信小区的同步方法和装置 |
| US8774825B2 (en) | 2007-06-28 | 2014-07-08 | Apple Inc. | Integration of map services with user applications in a mobile device |
| US8175802B2 (en) | 2007-06-28 | 2012-05-08 | Apple Inc. | Adaptive route guidance based on preferences |
| US8290513B2 (en) | 2007-06-28 | 2012-10-16 | Apple Inc. | Location-based services |
| US9109904B2 (en) | 2007-06-28 | 2015-08-18 | Apple Inc. | Integration of map services and user applications in a mobile device |
| US8108144B2 (en) | 2007-06-28 | 2012-01-31 | Apple Inc. | Location based tracking |
| US8204684B2 (en) | 2007-06-28 | 2012-06-19 | Apple Inc. | Adaptive mobile device navigation |
| US8180379B2 (en) | 2007-06-28 | 2012-05-15 | Apple Inc. | Synchronizing mobile and vehicle devices |
| US8385946B2 (en) | 2007-06-28 | 2013-02-26 | Apple Inc. | Disfavored route progressions or locations |
| US8762056B2 (en) | 2007-06-28 | 2014-06-24 | Apple Inc. | Route reference |
| US8332402B2 (en) | 2007-06-28 | 2012-12-11 | Apple Inc. | Location based media items |
| US8311526B2 (en) | 2007-06-28 | 2012-11-13 | Apple Inc. | Location-based categorical information services |
| US9066199B2 (en) | 2007-06-28 | 2015-06-23 | Apple Inc. | Location-aware mobile device |
| US8275352B2 (en) | 2007-06-28 | 2012-09-25 | Apple Inc. | Location-based emergency information |
| AU2008301216A1 (en) * | 2007-09-17 | 2009-03-26 | Seeker Wireless Pty Limited | Systems and methods for triggering location based voice and/or data communications to or from mobile radio terminals |
| JP5241846B2 (ja) * | 2007-10-23 | 2013-07-17 | コニンクリーケ・ケイピーエヌ・ナムローゼ・フェンノートシャップ | 終端端末のグループの同期方法およびシステム |
| US8737985B2 (en) * | 2007-11-26 | 2014-05-27 | Wavemarket, Inc. | Methods and systems for zone creation and adaption |
| US20090146871A1 (en) * | 2007-12-07 | 2009-06-11 | Charles Abraham | Method and apparatus for managing time in a satellite positioning system |
| US8355862B2 (en) | 2008-01-06 | 2013-01-15 | Apple Inc. | Graphical user interface for presenting location information |
| US20110034179A1 (en) * | 2008-04-07 | 2011-02-10 | Seeker Wireless Pty. Limited | Location of wireless mobile terminals |
| JP2009260768A (ja) * | 2008-04-18 | 2009-11-05 | Kyocera Corp | 移動通信システム、移動局装置、基地局装置、およびハンドオーバ方法 |
| US9250092B2 (en) | 2008-05-12 | 2016-02-02 | Apple Inc. | Map service with network-based query for search |
| US8644843B2 (en) | 2008-05-16 | 2014-02-04 | Apple Inc. | Location determination |
| US8369867B2 (en) | 2008-06-30 | 2013-02-05 | Apple Inc. | Location sharing |
| US8359643B2 (en) | 2008-09-18 | 2013-01-22 | Apple Inc. | Group formation using anonymous broadcast information |
| US8073463B2 (en) * | 2008-10-06 | 2011-12-06 | Andrew, Llc | System and method of UMTS UE location using uplink dedicated physical control channel and downlink synchronization channel |
| US8260320B2 (en) | 2008-11-13 | 2012-09-04 | Apple Inc. | Location specific content |
| US8249622B2 (en) | 2008-11-26 | 2012-08-21 | Andrew, Llc | System and method for multiple range estimation location |
| US8160609B2 (en) * | 2008-11-26 | 2012-04-17 | Andrew Llc | System and method for multiple range estimation location |
| US8660530B2 (en) | 2009-05-01 | 2014-02-25 | Apple Inc. | Remotely receiving and communicating commands to a mobile device for execution by the mobile device |
| US8670748B2 (en) | 2009-05-01 | 2014-03-11 | Apple Inc. | Remotely locating and commanding a mobile device |
| US8666367B2 (en) | 2009-05-01 | 2014-03-04 | Apple Inc. | Remotely locating and commanding a mobile device |
| TWI412777B (zh) * | 2009-06-19 | 2013-10-21 | Htc Corp | 增強定位量測功能的方法及其相關通訊裝置 |
| SG178359A1 (en) * | 2009-08-13 | 2012-03-29 | Interdigital Patent Holdings | Method and apparatus for supporting positioning measurements |
| US9261579B2 (en) * | 2009-10-05 | 2016-02-16 | Bae Systems Plc | Radio positioning of a mobile receiver using a virtual positioning reference |
| US8244236B2 (en) | 2010-04-29 | 2012-08-14 | Wavemarket, Inc. | System and method for aggregating and disseminating mobile device tag data |
| US8504077B2 (en) | 2010-12-04 | 2013-08-06 | Wavemarket, Inc. | System and method for monitoring and disseminating mobile device location information |
| TWI479861B (zh) * | 2013-03-01 | 2015-04-01 | Mstar Semiconductor Inc | 無線接收系統及其信號處理方法 |
| CN104065445B (zh) * | 2013-03-20 | 2017-07-28 | 晨星半导体股份有限公司 | 无线接收系统及其信号处理方法 |
| US9037092B2 (en) * | 2013-09-30 | 2015-05-19 | Broadcom Corporation | Method, apparatus and computer program for determining whether a received signal comprises a first signal component |
| KR102321928B1 (ko) * | 2016-08-12 | 2021-11-05 | 소니그룹주식회사 | 위치 서버, 인프라스트럭처 장비, 통신 디바이스 및 보충의 위치결정 참조 신호들을 사용하기 위한 방법들 |
| US11445469B2 (en) * | 2018-02-09 | 2022-09-13 | Telefonaktiebolaget Lm Ericsson (Publ) | Method, apparatus and system for determining a position of a wireless device |
| FR3119245A1 (fr) * | 2021-01-22 | 2022-07-29 | Orange | Compensation du délai pour une mesure de géolocalisation avec signaux de référence descendants |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4000538C1 (es) * | 1990-01-10 | 1991-03-21 | Rohde & Schwarz Gmbh & Co Kg, 8000 Muenchen, De | |
| US5014344A (en) * | 1990-03-19 | 1991-05-07 | Motorola, Inc. | Method for synchronizing the transmissions in a simulcast transmission system |
| JPH04360328A (ja) | 1991-06-06 | 1992-12-14 | Sony Corp | 移動通信システム |
| US5367524A (en) * | 1991-08-05 | 1994-11-22 | Motorola, Inc. | Method for sequential data transmission |
| US5365516A (en) | 1991-08-16 | 1994-11-15 | Pinpoint Communications, Inc. | Communication system and method for determining the location of a transponder unit |
| US5293645A (en) * | 1991-10-04 | 1994-03-08 | Sharp Microelectronics Technology, Inc. | Apparatus and method for locating mobile and portable radio terminals in a radio network |
| US5600706A (en) | 1992-04-08 | 1997-02-04 | U S West, Inc. | Method and system for determining the position of a mobile receiver |
| US5613211A (en) * | 1992-10-07 | 1997-03-18 | Nippon Steel Corporation | Method of establishing inter base-station synchronization and mobile radio communicaton system using the method |
| US5317323A (en) | 1993-03-05 | 1994-05-31 | E-Systems, Inc. | Passive high accuracy geolocation system and method |
| US5327144A (en) | 1993-05-07 | 1994-07-05 | Associated Rt, Inc. | Cellular telephone location system |
| FR2705514B1 (fr) | 1993-05-14 | 1995-06-23 | Alcatel Mobile Comm France | Procédé de transfert intercellulaire, ou handover, entre deux cellules d'un réseau GSM. |
| JP3399623B2 (ja) | 1994-03-16 | 2003-04-21 | 富士通株式会社 | 移動局位置捕捉装置 |
| BR9507174A (pt) | 1994-03-25 | 1997-09-02 | Qualcomm Inc | Método de determinação da posição para utilização com sistema celular análogo |
| US5519760A (en) | 1994-06-22 | 1996-05-21 | Gte Laboratories Incorporated | Cellular network-based location system |
| US5512908A (en) | 1994-07-08 | 1996-04-30 | Lockheed Sanders, Inc. | Apparatus and method for locating cellular telephones |
| US5784368A (en) * | 1994-09-23 | 1998-07-21 | Motorola, Inc. | Method and apparatus for providing a synchronous communication environment |
| US5724243A (en) * | 1995-02-10 | 1998-03-03 | Highwaymaster Communications, Inc. | Method and apparatus for determining expected time of arrival |
| GB9508884D0 (en) | 1995-05-02 | 1995-06-21 | Telecom Sec Cellular Radio Ltd | Cellular radio system |
| US5508708A (en) | 1995-05-08 | 1996-04-16 | Motorola, Inc. | Method and apparatus for location finding in a CDMA system |
| JP2915851B2 (ja) * | 1996-07-18 | 1999-07-05 | 宇宙開発事業団 | 時刻同期型通信システム |
| BR9912770B1 (pt) | 1998-08-07 | 2014-06-17 | Ericsson Telefon Ab L M | Proceso para usar uma estação de comunicação móvel em uma rede de comunicação sem fio para medir respectivos tempos de chegada de sinais de rádio respectivamente transmitidos por uma pluralidade de trasmissores de rádio vizinhos na rede, e, aparelho em uma estação de comunicação móvel para uso na localização da posição da estação de comunicação móvel em uma rede de comunicação sem fio |
-
1998
- 1998-08-07 US US09/131,150 patent/US6490454B1/en not_active Expired - Lifetime
- 1998-11-04 US US09/186,192 patent/US6356763B1/en not_active Expired - Lifetime
-
1999
- 1999-07-27 KR KR1020017001607A patent/KR100673153B1/ko not_active Expired - Lifetime
- 1999-08-05 MY MYPI99003347A patent/MY124250A/en unknown
- 1999-08-06 AR ARP990103947A patent/AR020131A1/es active IP Right Grant
-
2001
- 2001-01-25 ZA ZA200100723A patent/ZA200100723B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US6356763B1 (en) | 2002-03-12 |
| KR100673153B1 (ko) | 2007-01-22 |
| ZA200100723B (en) | 2002-01-25 |
| US6490454B1 (en) | 2002-12-03 |
| MY124250A (en) | 2006-06-30 |
| KR20010090434A (ko) | 2001-10-18 |
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