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WO2002006847A3 - Method and apparatus for reducing code phase search space - Google Patents

Method and apparatus for reducing code phase search space Download PDF

Info

Publication number
WO2002006847A3
WO2002006847A3 PCT/US2001/022755 US0122755W WO0206847A3 WO 2002006847 A3 WO2002006847 A3 WO 2002006847A3 US 0122755 W US0122755 W US 0122755W WO 0206847 A3 WO0206847 A3 WO 0206847A3
Authority
WO
WIPO (PCT)
Prior art keywords
client
search space
code phase
phase search
server
Prior art date
Application number
PCT/US2001/022755
Other languages
French (fr)
Other versions
WO2002006847A2 (en
Inventor
Christopher Patrick
Original Assignee
Qualcomm Inc
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
Priority claimed from US09/741,631 external-priority patent/US7369599B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Priority to AU7700401A priority Critical patent/AU7700401A/en
Priority to IL15402001A priority patent/IL154020A0/en
Priority to KR1020037000801A priority patent/KR101049836B1/en
Priority to EP01954780A priority patent/EP1301802A2/en
Priority to JP2002512703A priority patent/JP2004517298A/en
Publication of WO2002006847A2 publication Critical patent/WO2002006847A2/en
Publication of WO2002006847A3 publication Critical patent/WO2002006847A3/en
Priority to HK04100599A priority patent/HK1057781A1/en

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
    • G01S19/13—Receivers
    • G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
    • G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
    • G01S19/256—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to timing, e.g. time of week, code phase, timing offset
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • 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
    • G01S19/05—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing aiding data
    • 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
    • G01S19/30—Acquisition or tracking or demodulation of signals transmitted by the system code related

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)

Abstract

A GPS communication system including a server and a client, each including a GPS receiver, for reducing the code phase search space of the GPS receiver of the client. The communication system includes a transmitter for transmitting timing information from the server to the client to help the client locate a first satellite, and a receiver for using timing differences between the satellites to synchronize and locate other satellites. The code phase search space is reduced by reducing the number of phase hypotheses that must be calculated to establish communication between the server and the client.
PCT/US2001/022755 2000-07-19 2001-07-17 Method and apparatus for reducing code phase search space WO2002006847A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU7700401A AU7700401A (en) 2000-07-19 2001-07-17 Method and apparatus for reducing code phase search space
IL15402001A IL154020A0 (en) 2000-07-19 2001-07-17 Method and apparatus for reducing code phase search space
KR1020037000801A KR101049836B1 (en) 2000-07-19 2001-07-17 Method and apparatus for reducing code phase search space
EP01954780A EP1301802A2 (en) 2000-07-19 2001-07-17 Method and apparatus for reducing code phase search space
JP2002512703A JP2004517298A (en) 2000-07-19 2001-07-17 Method and apparatus for reducing search space of code phase
HK04100599A HK1057781A1 (en) 2000-07-19 2004-01-29 Method and apparatus for reducing code phase search space

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US21918100P 2000-07-19 2000-07-19
US60/219,181 2000-07-19
US09/741,631 2000-12-18
US09/741,631 US7369599B2 (en) 2000-12-18 2000-12-18 Method and apparatus for reducing code phase search space

Publications (2)

Publication Number Publication Date
WO2002006847A2 WO2002006847A2 (en) 2002-01-24
WO2002006847A3 true WO2002006847A3 (en) 2002-06-13

Family

ID=26913647

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/022755 WO2002006847A2 (en) 2000-07-19 2001-07-17 Method and apparatus for reducing code phase search space

Country Status (8)

Country Link
EP (1) EP1301802A2 (en)
JP (4) JP2004517298A (en)
KR (1) KR101049836B1 (en)
CN (1) CN100399042C (en)
AU (1) AU7700401A (en)
HK (1) HK1057781A1 (en)
IL (1) IL154020A0 (en)
WO (1) WO2002006847A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6873910B2 (en) * 2002-10-22 2005-03-29 Qualcomm Incorporated Procedure for searching for position determination signals using a plurality of search modes
US7688261B2 (en) * 2006-03-15 2010-03-30 The Boeing Company Global position system (GPS) user receiver and geometric surface processing for all-in-view coherent GPS signal PRN codes acquisition and navigation solution
US8026847B2 (en) * 2006-09-14 2011-09-27 Qualcomm Incorporated System and/or method for acquisition of GNSS signals
EP3455110A4 (en) * 2016-12-05 2019-05-29 Shenzhen Goodix Technology Co., Ltd. Sensing vehicle positions with optical sensors

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0902554A2 (en) * 1997-09-11 1999-03-17 Lucent Technologies Inc. An auxiliary system for assisting a wireless terminal in determining its position from signals transmitted from a navigation satellite
US6070078A (en) * 1997-10-15 2000-05-30 Ericsson Inc. Reduced global positioning system receiver code shift search space for a cellular telephone system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2301725B (en) * 1995-05-31 2000-02-02 Gen Electric A reduced-power GPS-based system for tracking multiple objects from a central location
US6075987A (en) * 1998-02-27 2000-06-13 Ericsson Inc. Stand alone global positioning system (GPS) and method with high sensitivity
US6204808B1 (en) * 1998-08-13 2001-03-20 Ericsson Inc. Method and system for aiding GPS receivers via a cellular or PCS network

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0902554A2 (en) * 1997-09-11 1999-03-17 Lucent Technologies Inc. An auxiliary system for assisting a wireless terminal in determining its position from signals transmitted from a navigation satellite
US6070078A (en) * 1997-10-15 2000-05-30 Ericsson Inc. Reduced global positioning system receiver code shift search space for a cellular telephone system

Also Published As

Publication number Publication date
JP2013117536A (en) 2013-06-13
IL154020A0 (en) 2003-07-31
KR20030017641A (en) 2003-03-03
EP1301802A2 (en) 2003-04-16
WO2002006847A2 (en) 2002-01-24
JP2015121537A (en) 2015-07-02
AU7700401A (en) 2002-01-30
JP2004517298A (en) 2004-06-10
HK1057781A1 (en) 2004-04-16
CN100399042C (en) 2008-07-02
JP2017096940A (en) 2017-06-01
CN1454323A (en) 2003-11-05
KR101049836B1 (en) 2011-07-15

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