ES2160263T3 - Determinacion de la posicion por estacion movil. - Google Patents

Determinacion de la posicion por estacion movil.

Info

Publication number
ES2160263T3
ES2160263T3 ES96941117T ES96941117T ES2160263T3 ES 2160263 T3 ES2160263 T3 ES 2160263T3 ES 96941117 T ES96941117 T ES 96941117T ES 96941117 T ES96941117 T ES 96941117T ES 2160263 T3 ES2160263 T3 ES 2160263T3
Authority
ES
Spain
Prior art keywords
base station
satellite
data
mobile unit
satellite receiver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES96941117T
Other languages
English (en)
Inventor
Geraint Ffoulkes-Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ceva UK Ltd
Original Assignee
Parthus UK Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Parthus UK Ltd filed Critical Parthus UK Ltd
Application granted granted Critical
Publication of ES2160263T3 publication Critical patent/ES2160263T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/07—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing data for correcting measured positioning data, e.g. DGPS [differential GPS] or ionosphere corrections
    • G01S19/071—DGPS corrections
    • 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
    • G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
    • G01S19/04—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing carrier phase data
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Vehicle Body Suspensions (AREA)
  • Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
  • Optical Communication System (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)

Abstract

EL APARATO DE DETERMINACION DE POSICION COMPRENDE UN SISTEMA DE RADIO CELULAR QUE INCLUYE AL MENOS UNA ESTACION BASE EQUIPADA CON UN RECEPTOR SATELITE (6) DE ESTACION BASE Y UN MEDIO DE DETERMINACION DE POSICION QUE INCLUYE UNA ESTACION MOVIL CELULAR (50) ACOPLADA A UN RECEPTOR SATELITE LOCAL (58); LA ESTACION BASE ESTA CONFIGURADA PARA TRANSMITIR LOS DATOS SATELITE DE LA ESTACION BASE, INCLUYENDO LOS DATOS QUE REPRESENTAN UNA MEDICION DE FASE DE PORTADORA DERIVADA DE UNA SEÑAL SATELITE (70) RECIBIDA POR EL RECEPTOR SATELITE (6) DE LA ESTACION BASE, A LA ESTACION MOVIL (50) A TRAVES DE UN ENLACE DE RADIO CELULAR, Y EL MEDIO DE DETERMINACION DE LA POSICION ESTA CONFIGURADO PARA DETERMINAR SU POSICION CON RESPECTO A LA ESTACION BASE UTILIZANDO LOS DATOS SATELITE LOCALES RECIBIDOS POR EL RECEPTOR SATELITE LOCAL (58) Y PARA CORREGIR ERRORES EN ESTA DETERMINACION DE POSICION UTILIZANDO LOS DATOS SATELITE DE LA ESTACION BASE. LAS POSICIONES RELATIVAS DE LAS ESTACIONES BASE PUEDEN DETERMINARSE AUTOMATICAMENTE CON RESPECTO A UNA REFERENCIA POSICIONAL EXTERNA. LA REFERENCIA POSICIONAL EXTERNA PUEDE SER UN SISTEMA DE DETERMINACION DE LA POSICION BASADO EN SATELITE.
ES96941117T 1995-12-04 1996-12-03 Determinacion de la posicion por estacion movil. Expired - Lifetime ES2160263T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9524754.0A GB9524754D0 (en) 1995-12-04 1995-12-04 Mobile position determination

Publications (1)

Publication Number Publication Date
ES2160263T3 true ES2160263T3 (es) 2001-11-01

Family

ID=10784873

Family Applications (1)

Application Number Title Priority Date Filing Date
ES96941117T Expired - Lifetime ES2160263T3 (es) 1995-12-04 1996-12-03 Determinacion de la posicion por estacion movil.

Country Status (11)

Country Link
US (1) US6128501A (es)
EP (1) EP0866983B1 (es)
JP (1) JP2000501504A (es)
AT (1) ATE201933T1 (es)
AU (1) AU722293B2 (es)
CA (1) CA2238949A1 (es)
DE (1) DE69613235T2 (es)
DK (1) DK0866983T3 (es)
ES (1) ES2160263T3 (es)
GB (2) GB9524754D0 (es)
WO (1) WO1997021109A1 (es)

Families Citing this family (89)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10361802B1 (en) 1999-02-01 2019-07-23 Blanding Hovenweep, Llc Adaptive pattern recognition based control system and method
US8352400B2 (en) 1991-12-23 2013-01-08 Hoffberg Steven M Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore
US6133871A (en) * 1995-10-09 2000-10-17 Snaptrack, Inc. GPS receiver having power management
US5884214A (en) 1996-09-06 1999-03-16 Snaptrack, Inc. GPS receiver and method for processing GPS signals
US6208290B1 (en) 1996-03-08 2001-03-27 Snaptrack, Inc. GPS receiver utilizing a communication link
US5841396A (en) 1996-03-08 1998-11-24 Snaptrack, Inc. GPS receiver utilizing a communication link
US5945944A (en) * 1996-03-08 1999-08-31 Snaptrack, Inc. Method and apparatus for determining time for GPS receivers
US9134398B2 (en) 1996-09-09 2015-09-15 Tracbeam Llc Wireless location using network centric location estimators
US6236365B1 (en) 1996-09-09 2001-05-22 Tracbeam, Llc Location of a mobile station using a plurality of commercial wireless infrastructures
US7764231B1 (en) 1996-09-09 2010-07-27 Tracbeam Llc Wireless location using multiple mobile station location techniques
FI973386L (fi) * 1997-07-25 1999-01-26 Vaeaenaenen Mikko Kalervo Menetelmä terveydentilatiedon analysoimiseen ja viestimiseen
US6529159B1 (en) * 1997-08-28 2003-03-04 At Road, Inc. Method for distributing location-relevant information using a network
DE19741216C2 (de) * 1997-09-18 1999-10-14 Siemens Ag Verfahren und Anordnung zum Abhören von Kommunikationsverbindungen in einem satelitgestützten Mobilfunksystem
US6070078A (en) * 1997-10-15 2000-05-30 Ericsson Inc. Reduced global positioning system receiver code shift search space for a cellular telephone system
US6081229A (en) * 1998-03-17 2000-06-27 Qualcomm Incorporated System and method for determining the position of a wireless CDMA transceiver
US6411811B2 (en) * 1998-04-20 2002-06-25 Ericsson Inc. System and method for provisioning assistance global positioning system information to a mobile station
US5999124A (en) * 1998-04-22 1999-12-07 Snaptrack, Inc, Satellite positioning system augmentation with wireless communication signals
US6061018A (en) 1998-05-05 2000-05-09 Snaptrack, Inc. Method and system for using altitude information in a satellite positioning system
US6252543B1 (en) * 1998-05-28 2001-06-26 Ericsson Inc. Location system combining ranging measurements from GPS and cellular networks
US6415154B1 (en) 1998-10-06 2002-07-02 Ericsson Inc. Method and apparatus for communicating auxilliary information and location information between a cellular telephone network and a global positioning system receiver for reducing code shift search time of the receiver
JP2000155163A (ja) * 1998-11-20 2000-06-06 Sony Computer Entertainment Inc 測位システム、測位方法、測位装置
AU2022100A (en) * 1998-12-08 2000-06-26 Ericsson Inc. Provisioning of gps assistance data in a wcdma network
US7904187B2 (en) 1999-02-01 2011-03-08 Hoffberg Steven M Internet appliance system and method
GB2347035B (en) * 1999-02-16 2003-10-08 Symmetricom Inc Positioning system
GB2347571A (en) 1999-03-03 2000-09-06 Secr Defence Locating system
US6275707B1 (en) * 1999-10-08 2001-08-14 Motorola, Inc. Method and apparatus for assigning location estimates from a first transceiver to a second transceiver
US7797448B1 (en) * 1999-10-28 2010-09-14 Ernest G Szoke GPS-internet linkage
US7142878B1 (en) 1999-11-12 2006-11-28 Lucent Technologies Inc. Method of timing calibration
CA2326292A1 (en) * 1999-12-03 2001-06-03 Lucent Technologies Inc. Method of timing calibration
US6680919B1 (en) * 2000-02-04 2004-01-20 Nokia Corporation Downloading of maps and location specific configuration information to GPS-capable mobile communication terminal
ATE402577T1 (de) * 2000-05-03 2008-08-15 Ericsson Telefon Ab L M Kalibrierung von positionierungssystemen
US10641861B2 (en) 2000-06-02 2020-05-05 Dennis J. Dupray Services and applications for a communications network
US9875492B2 (en) 2001-05-22 2018-01-23 Dennis J. Dupray Real estate transaction system
US10684350B2 (en) 2000-06-02 2020-06-16 Tracbeam Llc Services and applications for a communications network
US6331836B1 (en) * 2000-08-24 2001-12-18 Fast Location.Net, Llc Method and apparatus for rapidly estimating the doppler-error and other receiver frequency errors of global positioning system satellite signals weakened by obstructions in the signal path
US6405127B1 (en) * 2000-09-15 2002-06-11 General Electric Company Method for determining stationary locomotive location in a railyard
JP2004510138A (ja) * 2000-09-20 2004-04-02 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ 移動装置の位置を決定する方法
JP2002168734A (ja) * 2000-11-30 2002-06-14 Fuji Heavy Ind Ltd 車両管理システム
JP2002311123A (ja) * 2001-04-11 2002-10-23 Mitsui & Co Ltd 衛星測位システム
US9052374B2 (en) 2001-07-18 2015-06-09 Fast Location.Net, Llc Method and system for processing positioning signals based on predetermined message data segment
US6628234B2 (en) 2001-07-18 2003-09-30 Fast Location.Net, Llc Method and system for processing positioning signals in a stand-alone mode
US6515620B1 (en) 2001-07-18 2003-02-04 Fast Location.Net, Llc Method and system for processing positioning signals in a geometric mode
US6529160B2 (en) 2001-07-18 2003-03-04 Fast Location.Net, Llc Method and system for determining carrier frequency offsets for positioning signals
US6882309B2 (en) 2001-07-18 2005-04-19 Fast Location. Net, Llc Method and system for processing positioning signals based on predetermined message data segment
JP4049558B2 (ja) * 2001-08-06 2008-02-20 株式会社デンソー 無線通信端末、コンピュータプログラムおよび位置関連情報の送信方法
US7068704B1 (en) 2001-09-26 2006-06-27 Itt Manufacturing Enterpprises, Inc. Embedded chirp signal for position determination in cellular communication systems
US6983160B2 (en) * 2001-10-25 2006-01-03 Motorola, Inc. Base site and method for GPS-based regional time synchronization
US7127257B2 (en) * 2001-12-27 2006-10-24 Qualcomm Incorporated Use of mobile stations for determination of base station location parameters in a wireless mobile communication system
EP1430740A1 (en) * 2002-02-15 2004-06-23 Nokia Corporation Positioning in a telecommunications system
US6975939B2 (en) * 2002-07-29 2005-12-13 The United States Of America As Represented By The Secretary Of The Army Mapping patterns of movement based on the aggregation of spatial information contained in wireless transmissions
US8010124B2 (en) 2003-03-24 2011-08-30 Sony Ericsson Mobile Communications Ab Methods, systems and computer program products for providing location determination information to an assisted location service
US8483717B2 (en) 2003-06-27 2013-07-09 Qualcomm Incorporated Local area network assisted positioning
US8971913B2 (en) 2003-06-27 2015-03-03 Qualcomm Incorporated Method and apparatus for wireless network hybrid positioning
US7123928B2 (en) * 2003-07-21 2006-10-17 Qualcomm Incorporated Method and apparatus for creating and using a base station almanac for position determination
US7321776B2 (en) 2003-09-25 2008-01-22 Sony Ericsson Mobile Communications Ab Estimating GPS time at cellular terminals based on timing of information from base stations and satellites
WO2005060669A2 (en) * 2003-12-19 2005-07-07 Kennedy Joseph P E-otd augmentation to u-tdoa location system
US20050143090A1 (en) * 2003-12-29 2005-06-30 Interdigital Technology Corporation Location aided wireless signal characteristic adjustment
GB2410849B (en) * 2003-12-30 2007-03-14 Nokia Corp A GPS device
BRPI0418696A (pt) 2004-04-02 2007-06-12 Qualcomm Inc métodos e equipamentos para sistemas de determinação de posição assistida por sinalizador
KR100560389B1 (ko) * 2004-07-05 2006-03-13 한국전자통신연구원 무선망 기지국 설계 방법
US7358897B2 (en) 2004-08-16 2008-04-15 Sony Ericsson Mobile Communicatios Ab Apparatus, methods and computer program products for GPS signal acquisition using an adaptive search engine
US7453956B2 (en) 2004-08-16 2008-11-18 Sony Ericsson Mobile Communications Ab Apparatus, methods and computer program products for signal acquisition using common demodulation templates
WO2006043123A1 (en) * 2004-10-21 2006-04-27 Nokia Corporation Satellite based positioning
US7548200B2 (en) * 2006-04-24 2009-06-16 Nemerix Sa Ephemeris extension method for GNSS applications
US20070299609A1 (en) * 2006-06-23 2007-12-27 Nemerix Sa Method and system for ephemeris extension for GNSS applications
US8497801B2 (en) 2007-02-05 2013-07-30 Qualcomm Incorporated Prediction refresh method for ephemeris extensions
JP5118894B2 (ja) * 2007-06-05 2013-01-16 株式会社Ｋｄｄｉ研究所 無線基地局
US20090043435A1 (en) * 2007-08-07 2009-02-12 Quantum Engineering, Inc. Methods and systems for making a gps signal vital
WO2010005731A1 (en) 2008-06-16 2010-01-14 Skyhook Wireless, Inc. Methods and systems for determining location using a cellular and wlan positioning system by selecting the best wlan ps solution
RU2401437C2 (ru) * 2008-09-16 2010-10-10 Сорокин Виктор Леонидович Способ определения расстояний между космическим аппаратом и станциями
US8478228B2 (en) 2008-10-20 2013-07-02 Qualcomm Incorporated Mobile receiver with location services capability
US8306726B2 (en) * 2009-04-28 2012-11-06 Caterpillar Inc. Position monitoring system for a mobile machine
US8509970B2 (en) 2009-06-30 2013-08-13 Invensys Rail Corporation Vital speed profile to control a train moving along a track
FR2948188B1 (fr) * 2009-07-20 2011-09-09 Soletanche Freyssinet Procede de surveillance des mouvements d'un terrain
US8600297B2 (en) * 2009-07-28 2013-12-03 Qualcomm Incorporated Method and system for femto cell self-timing and self-locating
US9651674B2 (en) * 2009-12-11 2017-05-16 At&T Mobility Ii Llc Devices, systems and methods for providing location information over a cellular network
US20110181465A1 (en) * 2010-01-26 2011-07-28 Rongsheng Li Multi-constellation global navigation satellite system augmentation and assistance
US9696431B2 (en) * 2010-04-12 2017-07-04 Nokia Technologies Oy Selection of a relative positioning method
US9538493B2 (en) 2010-08-23 2017-01-03 Finetrak, Llc Locating a mobile station and applications therefor
RU2470261C1 (ru) * 2011-12-07 2012-12-20 Открытое акционерное общество "Завод им. В.А. Дегтярева" Способ решения специальных геодезических задач
US9405010B2 (en) 2012-05-02 2016-08-02 Raven Industries, Inc. Geospatial positioning using correction information provided over cellular control channels
US9671501B2 (en) * 2012-09-26 2017-06-06 Trimble Inc. Global navigation satellite systems (GNSS) positioning using precise satellite data
US9612341B2 (en) * 2012-12-28 2017-04-04 Trimble Inc. GNSS receiver positioning system
US9743373B2 (en) 2012-12-28 2017-08-22 Trimble Inc. Concurrent dual processing of pseudoranges with corrections
US9880286B2 (en) 2012-12-28 2018-01-30 Trimble Inc. Locally measured movement smoothing of position fixes based on extracted pseudoranges
CN106285627A (zh) * 2016-08-31 2017-01-04 西部黄金克拉玛依哈图金矿有限责任公司 一种井下相邻导线不通的三角形联系测量法
US10805770B2 (en) * 2016-12-27 2020-10-13 Panasonic Intellectual Property Management Co., Ltd. Positioning system, base station, and positioning method
EP3708000A1 (en) * 2019-03-13 2020-09-16 Swiss Timing Ltd. Measuring system for horse race or training
AU2022456513B2 (en) * 2022-04-28 2025-01-30 Mitsubishi Electric Corporation Position orientation device

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4812991A (en) * 1986-05-01 1989-03-14 Magnavox Govt. And Industrial Electronics Company Method for precision dynamic differential positioning
JPH0820499B2 (ja) * 1987-01-30 1996-03-04 日本無線株式会社 複合測位システム
US4928106A (en) * 1988-07-14 1990-05-22 Ashtech Telesis, Inc. Global positioning system receiver with improved radio frequency and digital processing
GB2241623A (en) * 1990-02-28 1991-09-04 Philips Electronic Associated Vehicle location system
US5043736B1 (en) * 1990-07-27 1994-09-06 Cae Link Corp Cellular position location system
JPH04266228A (ja) * 1991-02-21 1992-09-22 Sony Corp 移動体用電話装置
JPH04315076A (ja) * 1991-04-12 1992-11-06 Sharp Corp Ｇｐｓローカル測位システム
JPH04369492A (ja) * 1991-06-18 1992-12-22 Pioneer Electron Corp Ｇｐｓ測位装置
US5148179A (en) * 1991-06-27 1992-09-15 Trimble Navigation Differential position determination using satellites
US5303297A (en) * 1991-07-25 1994-04-12 Motorola, Inc. Dynamic pricing method and apparatus for communication systems
DE4136136C1 (es) * 1991-11-02 1993-03-04 Westdeutscher Rundfunk, Anstalt Des Oeffentlichen Rechts, 5000 Koeln, De
JP3349510B2 (ja) * 1991-12-16 2002-11-25 ピンレインジャー（オーストラリア）プロプライエタリー リミテッド 距離測定方式
JPH05232210A (ja) * 1992-02-20 1993-09-07 Kokusai Denshin Denwa Co Ltd <Kdd> Ｇｐｓ衛星を利用した測位方法及び移動体管理方法
US5311194A (en) * 1992-09-15 1994-05-10 Navsys Corporation GPS precision approach and landing system for aircraft
US5390124A (en) * 1992-12-01 1995-02-14 Caterpillar Inc. Method and apparatus for improving the accuracy of position estimates in a satellite based navigation system
MY110677A (en) * 1992-12-02 1999-01-30 Voxson Pty Ltd Improvements in positioning systems
US5422813A (en) * 1992-12-17 1995-06-06 Stanford Telecommunications, Inc. No-outage GPS/commercial RF positioning system
TW279864B (es) * 1993-02-19 1996-07-01 Janssen Pharmaceutica Nv
US5548293A (en) * 1993-03-24 1996-08-20 Leland Stanford Junior University System and method for generating attitude determinations using GPS
US5477458A (en) * 1994-01-03 1995-12-19 Trimble Navigation Limited Network for carrier phase differential GPS corrections
FR2715230B1 (fr) * 1994-01-19 1996-04-05 Sercel Rech Const Elect Procédé et système de localisation radiosatellitaire en temps réel.
US5617100A (en) * 1994-04-07 1997-04-01 Matsushita Electric Industrial Co., Ltd. Accurate position measuring system
JPH09511829A (ja) * 1994-04-12 1997-11-25 エヌエフエス ナヴィガツィオーンス− ウント フルークフュールングス−ジステーメ ゲゼルシャフト ミット ベシュレンクテル ハフツング サテライト・ナビゲーション方法
ZA952853B (en) * 1994-04-18 1995-12-21 Caterpillar Inc Method and apparatus for real time monitoring and co-ordination of multiple geography altering machines on a work site
US6732077B1 (en) * 1995-05-12 2004-05-04 Trimble Navigation Limited Speech recognizing GIS/GPS/AVL system
US5727034A (en) * 1995-07-26 1998-03-10 Nokia Telecommunications Oy Apparatus and method for synchronizing base sites individually in a communication system

Also Published As

Publication number Publication date
GB9625049D0 (en) 1997-01-22
GB2308033B (en) 2000-04-12
JP2000501504A (ja) 2000-02-08
GB2308033A (en) 1997-06-11
WO1997021109A1 (en) 1997-06-12
EP0866983A1 (en) 1998-09-30
ATE201933T1 (de) 2001-06-15
GB9524754D0 (en) 1996-04-24
AU722293B2 (en) 2000-07-27
US6128501A (en) 2000-10-03
CA2238949A1 (en) 1997-06-12
DK0866983T3 (da) 2001-09-24
EP0866983B1 (en) 2001-06-06
AU1036797A (en) 1997-06-27
DE69613235T2 (de) 2002-05-02
DE69613235D1 (de) 2001-07-12

Similar Documents

Publication Publication Date Title
ES2160263T3 (es) Determinacion de la posicion por estacion movil.
ATE427504T1 (de) Unterstutzung eines satellitenpositionsbestimmungssystems mit drahtlosen kommunikationssignalen
EP1262790A3 (en) Method and apparatus for determining time for GPS receivers
CA2351407A1 (en) Wireless user position update using infrastructure measurements
WO2001033302A3 (en) Method and apparatus for position determination using reduced number of gps satellites and synchronized and unsynchronized base stations
CA2328847A1 (en) Method and apparatus for determining time in a satellite positioning system
MY133921A (en) Positioning system, positioning method and positioning device
ATE232608T1 (de) Unzweideutiges positionsbestimmungsverfahren und -system mittels zweier satelliten niedriger umlaufbahn
DE69013855D1 (de) Verfolgungsverfahren bezüglich Satelliten-Radiosignalen in GPS-Empfängern.
PL345899A1 (en) Method and system for aiding gps receivers via a cellular or pcs network
GB2337386B (en) Location of a mobile station
EP0930513A3 (en) Cellular radio positioning
CA2308163A1 (en) Smart subdivision of base station candidates for position location accuracy
WO2004011956A3 (en) Carrier-based differential-position determination using multi-frequency pseudolites
IL159182A0 (en) Method and system for using altitude information in a satellite positioning system
EP0913066A4 (en) METHOD FOR LOCATING A MOBILE STATION
NO20083541L (no) Fremgangsmate og system for a stedfeste en mobilabonnent i et CDMA kommunikasjonssystem
NO970912L (no) Fremgangsmåte for mottaking, samt basestasjon-mottaker
WO2002031921A3 (en) Antenna transducer assembly, and an associated method therefor
MY121742A (en) A cellular positioning system that compensates for received signal delays in positioning radio receivers
WO2001057549A3 (en) Multi-frequency pseudolites for carrier-based differential-position determination
EP0177203A3 (en) Radio navigation system
DE69613531D1 (de) Linearer offsetkompensierter hochfrequenzdetektor
AU5405099A (en) Method for detecting the supply quality in a telecommunication network and corresponding mobile telecommunication terminal
SE0301097D0 (sv) Localization system

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 866983

Country of ref document: ES