CA2343741A1 - Position location with a low tolerance oscillator - Google Patents

Position location with a low tolerance oscillator Download PDF

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Publication number
CA2343741A1
CA2343741A1 CA002343741A CA2343741A CA2343741A1 CA 2343741 A1 CA2343741 A1 CA 2343741A1 CA 002343741 A CA002343741 A CA 002343741A CA 2343741 A CA2343741 A CA 2343741A CA 2343741 A1 CA2343741 A1 CA 2343741A1
Authority
CA
Canada
Prior art keywords
position location
local oscillator
low tolerance
oscillator
timing signal
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.)
Granted
Application number
CA002343741A
Other languages
French (fr)
Other versions
CA2343741C (en
Inventor
Gilbert C. Sih
Quizhen Zou
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.)
Qualcomm Inc
Original Assignee
Qualcomm Incorporated
Gilbert C. Sih
Quizhen Zou
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 Qualcomm Incorporated, Gilbert C. Sih, Quizhen Zou filed Critical Qualcomm Incorporated
Publication of CA2343741A1 publication Critical patent/CA2343741A1/en
Application granted granted Critical
Publication of CA2343741C publication Critical patent/CA2343741C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G01S19/13—Receivers
    • G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
    • G01S19/235—Calibration of receiver components
    • 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
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/246—Acquisition or tracking or demodulation of signals transmitted by the system involving long acquisition integration times, extended snapshots of signals or methods specifically directed towards weak signal acquisition
    • 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

Abstract

The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment of the invention comprises a method of performing position location in a wireless subscriber unit having a local oscillator, including the steps of receiving a position location request, acquiring a timing signal when a sufficient period of time has elapsed since the local oscillator has been corrected and correcting said local oscillator using a correction signal based on said timing signal, substantially freezing the connection signal, performing a position location procedure using the local oscillator with the correction signal applied, and ending said position location procedure.
CA002343741A 1998-09-09 1999-09-03 Position location with a low tolerance oscillator Expired - Fee Related CA2343741C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/150,093 US6208292B1 (en) 1998-09-09 1998-09-09 Position location with low tolerance oscillator
US09/150,093 1998-09-09
PCT/US1999/020371 WO2000014562A1 (en) 1998-09-09 1999-09-03 Position location with a low tolerance oscillator

Publications (2)

Publication Number Publication Date
CA2343741A1 true CA2343741A1 (en) 2000-03-16
CA2343741C CA2343741C (en) 2009-01-13

Family

ID=22533106

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002343741A Expired - Fee Related CA2343741C (en) 1998-09-09 1999-09-03 Position location with a low tolerance oscillator

Country Status (13)

Country Link
US (1) US6208292B1 (en)
EP (1) EP1110099A1 (en)
JP (1) JP5079941B2 (en)
KR (2) KR100855916B1 (en)
CN (1) CN1317090A (en)
AU (1) AU763169B2 (en)
BR (1) BR9913552A (en)
CA (1) CA2343741C (en)
FI (1) FI114742B (en)
ID (1) ID29544A (en)
IL (2) IL141794A0 (en)
MX (1) MXPA01002489A (en)
WO (1) WO2000014562A1 (en)

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US6324159B1 (en) * 1998-05-06 2001-11-27 Sirius Communications N.V. Method and apparatus for code division multiple access communication with increased capacity through self-noise reduction
US6665539B2 (en) * 1998-09-09 2003-12-16 Qualcomm Inc. Position location with low tolerance oscillator
US6704348B2 (en) 2001-05-18 2004-03-09 Global Locate, Inc. Method and apparatus for computing signal correlation at multiple resolutions
EP1175734A1 (en) * 1999-05-10 2002-01-30 Sirius Communications N.V. Method and apparatus for high-speed software reconfigurable code division multiple access communication
US7372888B1 (en) * 1999-05-10 2008-05-13 Agilent Technologies Inc. Method and apparatus for software reconfigurable communication transmission/reception and navigation signal reception
US8255149B2 (en) 1999-07-12 2012-08-28 Skybitz, Inc. System and method for dual-mode location determination
US20040143392A1 (en) * 1999-07-12 2004-07-22 Skybitz, Inc. System and method for fast acquisition reporting using communication satellite range measurement
JP3695571B2 (en) * 1999-07-21 2005-09-14 株式会社エヌ・ティ・ティ・ドコモ CDMA receiver and received signal power measuring method in CDMA mobile communication system
US7327779B1 (en) 1999-07-23 2008-02-05 Agilent Technologies, Inc. Method and apparatus for high-speed software reconfigurable code division multiple access communication
US6429811B1 (en) 2000-02-15 2002-08-06 Motorola, Inc. Method and apparatus for compressing GPS satellite broadcast message information
US6839547B2 (en) * 2000-03-30 2005-01-04 Cellguide Ltd. Enhanced GPS receiver utilizing wireless infrastructure
US6804290B1 (en) 2000-05-26 2004-10-12 Motorola, Inc. Method of acquiring signal code phases and geographic positioning receiver
KR100416990B1 (en) * 2000-11-03 2004-02-05 삼성전자주식회사 Receiving performance improvement method for network aided gps receiver
US6452541B1 (en) 2001-02-20 2002-09-17 Motorola, Inc. Time synchronization of a satellite positioning system enabled mobile receiver and base station
US7190712B2 (en) * 2001-05-18 2007-03-13 Global Locate, Inc Method and apparatus for performing signal correlation
US6819707B2 (en) * 2001-05-18 2004-11-16 Global Locate, Inc. Method and apparatus for performing signal correlation using historical correlation data
US6891880B2 (en) * 2001-05-18 2005-05-10 Global Locate, Inc. Method and apparatus for performing signal correlation
US7567636B2 (en) * 2001-05-18 2009-07-28 Global Locate, Inc. Method and apparatus for performing signal correlation using historical correlation data
US7769076B2 (en) * 2001-05-18 2010-08-03 Broadcom Corporation Method and apparatus for performing frequency synchronization
US7006556B2 (en) * 2001-05-18 2006-02-28 Global Locate, Inc. Method and apparatus for performing signal correlation at multiple resolutions to mitigate multipath interference
US7995682B2 (en) * 2001-05-18 2011-08-09 Broadcom Corporation Method and apparatus for performing signal processing using historical correlation data
US6542116B1 (en) * 2001-06-22 2003-04-01 Enuvis, Inc. Determining the spatio-temporal and kinematic parameters of a signal receiver and its clock by information fusion
US6532251B1 (en) 2001-08-16 2003-03-11 Motorola, Inc. Data message bit synchronization and local time correction methods and architectures
US6775319B2 (en) 2001-08-16 2004-08-10 Motorola, Inc. Spread spectrum receiver architectures and methods therefor
US6965754B2 (en) * 2001-10-09 2005-11-15 Motorola, Inc. Satellite positioning system receiver with reference oscillator circuit and methods therefor
US6756938B2 (en) 2001-11-06 2004-06-29 Motorola, Inc. Satellite positioning system receivers and methods therefor
US6944540B2 (en) 2002-03-28 2005-09-13 Motorola, Inc. Time determination in satellite positioning system receivers and methods therefor
US6661371B2 (en) 2002-04-30 2003-12-09 Motorola, Inc. Oscillator frequency correction in GPS signal acquisition
CA2506700C (en) * 2002-10-04 2013-05-21 Sigtec Navigation Pty Ltd Satellite-based positioning system improvement
US7062240B2 (en) 2003-04-22 2006-06-13 Motorola, Inc. Automatic frequency control processing in multi-channel receivers
US7375654B2 (en) 2003-08-01 2008-05-20 Spectrum Tracking Systems, Inc. Method and system for providing tracking services to locate an asset
JP3876893B2 (en) * 2004-05-14 2007-02-07 セイコーエプソン株式会社 TERMINAL DEVICE, POSITIONING METHOD, TERMINAL DEVICE CONTROL PROGRAM, COMPUTER-READABLE RECORDING MEDIUM CONTAINING TERMINAL DEVICE CONTROL PROGRAM
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
US8730101B2 (en) * 2010-05-13 2014-05-20 Qualcomm Incorporated High sensitivity satellite positioning system receiver
US9568609B2 (en) 2010-05-13 2017-02-14 Qualcomm Incorporated High sensitivity satellite positioning system receiver

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JPH0348526A (en) * 1989-07-17 1991-03-01 Toyo Commun Equip Co Ltd Oscillating circuit
JP3163621B2 (en) * 1990-06-28 2001-05-08 日本電気株式会社 Clock frequency correction method for wireless terminal equipment
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JPH05155397A (en) * 1991-12-02 1993-06-22 Toshiba Corp Orbit estimation device
US5420592A (en) 1993-04-05 1995-05-30 Radix Technologies, Inc. Separated GPS sensor and processing system for remote GPS sensing and centralized ground station processing for remote mobile position and velocity determinations
US5666122A (en) * 1994-07-11 1997-09-09 Qualcomm Incorporated Method for rapid signal acquisition in a satellite communications system
US5742908A (en) * 1994-09-14 1998-04-21 Ericsson Inc. Frequency error correction in a satellite-mobile communications system
US5654718A (en) * 1994-10-06 1997-08-05 Garmin Corporation GPS receiver device and method for calibrating a temperature uncompensated crystal oscillator
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Also Published As

Publication number Publication date
KR20010075017A (en) 2001-08-09
JP5079941B2 (en) 2012-11-21
MXPA01002489A (en) 2002-04-24
US6208292B1 (en) 2001-03-27
FI114742B (en) 2004-12-15
KR100855916B1 (en) 2008-09-02
WO2000014562A1 (en) 2000-03-16
IL141794A0 (en) 2002-03-10
BR9913552A (en) 2001-10-09
CN1317090A (en) 2001-10-10
KR20080016722A (en) 2008-02-21
KR100937619B1 (en) 2010-01-20
AU6027699A (en) 2000-03-27
FI20010421A (en) 2001-03-02
JP2002524745A (en) 2002-08-06
CA2343741C (en) 2009-01-13
ID29544A (en) 2001-09-06
IL141794A (en) 2006-12-10
EP1110099A1 (en) 2001-06-27
AU763169B2 (en) 2003-07-17

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