WO2004051887A3 - Method for synchronizing communication units in a synchronous wireless communication - Google Patents

Method for synchronizing communication units in a synchronous wireless communication Download PDF

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Publication number
WO2004051887A3
WO2004051887A3 PCT/US2003/037696 US0337696W WO2004051887A3 WO 2004051887 A3 WO2004051887 A3 WO 2004051887A3 US 0337696 W US0337696 W US 0337696W WO 2004051887 A3 WO2004051887 A3 WO 2004051887A3
Authority
WO
WIPO (PCT)
Prior art keywords
communication units
communication
usable
gps signals
synchronizing
Prior art date
Application number
PCT/US2003/037696
Other languages
French (fr)
Other versions
WO2004051887A2 (en
Inventor
Daryl B Elam
Original Assignee
Raytheon Co
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 Raytheon Co filed Critical Raytheon Co
Priority to JP2004557296A priority Critical patent/JP4540483B2/en
Priority to AU2003293054A priority patent/AU2003293054A1/en
Priority to EP03790045A priority patent/EP1568156B1/en
Publication of WO2004051887A2 publication Critical patent/WO2004051887A2/en
Publication of WO2004051887A3 publication Critical patent/WO2004051887A3/en
Priority to IL167074A priority patent/IL167074A/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
    • 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
    • G01S5/14—Determining absolute distances from a plurality of spaced points of known location
    • 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
    • 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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G01S11/08—Systems for determining distance or velocity not using reflection or reradiation using radio waves using synchronised clocks
    • 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
    • G01S19/14—Receivers specially adapted for specific applications
    • G01S19/18—Military applications

Abstract

A method for synchronizing communication units (102) in a synchronous wireless communication system allows for system synchronization and communication unit location when usable GPS signals are not available or are being jammed. Communication units (102) communicate within frames (302) that are synchronized with a timing-reference signal (214, 218). The timing-reference signal may be generated from GPS signals when usable or generated from TOA and trajectory extrapolations when the GPS signals are not usable. A disciplined oscillator may be used to maintain substantial synchronization over a few seconds of a frame. In one embodiment, propagation delays of received signals within the frame (302) are determined and provided to other communication units (102) allowing one or more communication units to calculate locations of the communication units (102). The location information may be reported to the other communication units for use in the self-synchronization.
PCT/US2003/037696 2002-12-04 2003-11-25 Method for synchronizing communication units in a synchronous wireless communication WO2004051887A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2004557296A JP4540483B2 (en) 2002-12-04 2003-11-25 Method for determining and tracking a communication device in a synchronous wireless communication system
AU2003293054A AU2003293054A1 (en) 2002-12-04 2003-11-25 Method for synchronizing communication units in a synchronous wireless communication
EP03790045A EP1568156B1 (en) 2002-12-04 2003-11-25 Method for synchronizing communication units in a synchronous wireless communication system, corresponding communications unit and system
IL167074A IL167074A (en) 2002-12-04 2005-02-23 Method for synchronizing communication units in a synchronous wireless communication

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/313,473 2002-12-04
US10/313,473 US7289541B2 (en) 2002-12-04 2002-12-04 Method for locating and tracking communication units in a synchronous wireless communication system

Publications (2)

Publication Number Publication Date
WO2004051887A2 WO2004051887A2 (en) 2004-06-17
WO2004051887A3 true WO2004051887A3 (en) 2004-09-02

Family

ID=32468257

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/037696 WO2004051887A2 (en) 2002-12-04 2003-11-25 Method for synchronizing communication units in a synchronous wireless communication

Country Status (6)

Country Link
US (1) US7289541B2 (en)
EP (1) EP1568156B1 (en)
JP (1) JP4540483B2 (en)
AU (1) AU2003293054A1 (en)
IL (1) IL167074A (en)
WO (1) WO2004051887A2 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8111680B2 (en) * 2005-04-07 2012-02-07 Mitsubishi Electric Corporation Mobile object information sharing system
US8169982B2 (en) 2005-08-10 2012-05-01 Qualcomm Incorporated Method and apparatus for creating a fingerprint for a wireless network
US8472320B2 (en) * 2006-12-06 2013-06-25 Telefonaktiebolaget Lm Ericsson (Publ) Jitter buffer control
JP4952782B2 (en) 2007-03-08 2012-06-13 富士通株式会社 Wireless communication apparatus, mobile wireless communication control method, and wireless station
US20090098885A1 (en) * 2007-10-12 2009-04-16 Qualcomm Incorporated System and method for storing information to locate a femto cell
US9253653B2 (en) * 2007-11-09 2016-02-02 Qualcomm Incorporated Access point configuration based on received access point signals
KR100939575B1 (en) 2008-04-16 2010-01-29 에스에프원㈜ Resonance tube structure for multi-channel headphone
US8121599B2 (en) * 2008-12-24 2012-02-21 At&T Mobility Ii Llc System and method for inferring wireless trajectories in a cellular telephone network
US8838096B2 (en) * 2009-05-29 2014-09-16 Qualcomm Incorporated Non-macro cell search integrated with macro-cellular RF carrier monitoring
US20110134833A1 (en) * 2009-12-08 2011-06-09 Qualcomm Incorporated Controlling access point functionality
US8923892B2 (en) 2010-05-14 2014-12-30 Qualcomm Incorporated Method and apparatus for updating femtocell proximity information
US9293924B2 (en) * 2011-02-15 2016-03-22 Raytheon Company Electrical phase synchronization
US9361047B2 (en) * 2012-07-03 2016-06-07 Violin Memory Inc. Synchronization of a dispersed RAID group
US9161167B2 (en) * 2013-01-23 2015-10-13 Qualcomm Incorporated Visual identifier of third party location
JP6204122B2 (en) * 2013-09-09 2017-09-27 京セラ株式会社 Base station and air synchronization method
EP3272159B1 (en) * 2015-03-18 2019-02-13 Sony Corporation Fingerprint matching for location determination in mimo systems
US11105634B2 (en) 2017-04-27 2021-08-31 United States Of America As Represented By The Secretary Of The Air Force Positioning and navigation systems and methods
CN108200630B (en) * 2017-12-12 2020-11-03 中电科（宁波）海洋电子研究院有限公司 Automatic call link establishing method suitable for medium-high frequency radio station
EP4075685B1 (en) * 2018-10-12 2024-04-03 OQ Technology S.à r.l. Method and system for non-terrestrial cellular wireless communication networks

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277232A (en) * 1993-03-20 1994-10-19 Motorola Inc Timing of transmission from a mobile unit in a TDMA communications system
US6208871B1 (en) * 1998-02-27 2001-03-27 Motorola, Inc. Method and apparatus for providing a time adjustment to a wireless communication system
WO2001052461A2 (en) * 2000-01-14 2001-07-19 Addvalue Technologies Ltd. Communication apparatus

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742498A (en) * 1970-05-06 1973-06-26 Itt Synchronization and position location system
US3886553A (en) 1973-03-15 1975-05-27 John K Bates Coordinate locating method and system
US5099245A (en) 1987-10-23 1992-03-24 Hughes Aircraft Company Vehicle location system accuracy enhancement for airborne vehicles
US5262784A (en) 1992-06-15 1993-11-16 Cardion, Inc. System for monitoring aircraft position
JPH0629910A (en) * 1992-07-09 1994-02-04 Nec Corp Inter radio base station synchronization system
US5841396A (en) * 1996-03-08 1998-11-24 Snaptrack, Inc. GPS receiver utilizing a communication link
GB2310098A (en) 1996-02-08 1997-08-13 Philip Bernard Wesby Locating mobile telephone
US5872774A (en) * 1997-09-19 1999-02-16 Qualcomm Incorporated Mobile station assisted timing synchronization in a CDMA communication system
US6016322A (en) * 1997-09-22 2000-01-18 Kor Electronics, Inc. Apparatus and method for self synchronization in a digital data wireless communication system
US6289211B1 (en) 1998-03-26 2001-09-11 Erksson Inc Method for determining the position of a mobile station
FI106494B (en) * 1998-11-05 2001-02-15 Nokia Networks Oy Ramsynkroniseringsmekanism
US6198935B1 (en) 1998-11-17 2001-03-06 Ericsson Inc. System and method for time of arrival positioning measurements based upon network characteristics
US6188354B1 (en) 1999-03-29 2001-02-13 Qualcomm Incorporated Method and apparatus for determining the location of a remote station in a CDMA communication network
JP2001343447A (en) * 2000-03-30 2001-12-14 Honda Motor Co Ltd Method for detecting location of movable body
JP2001330657A (en) * 2000-05-19 2001-11-30 Futoshi Uenishi System for grasping position of phs or portable telephone
JP2002318272A (en) * 2001-04-20 2002-10-31 Jekku:Kk Hybrid positioning system and recording medium
GB2388264A (en) * 2002-01-10 2003-11-05 Roke Manor Research GPS based networked time synchronised unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2277232A (en) * 1993-03-20 1994-10-19 Motorola Inc Timing of transmission from a mobile unit in a TDMA communications system
US6208871B1 (en) * 1998-02-27 2001-03-27 Motorola, Inc. Method and apparatus for providing a time adjustment to a wireless communication system
WO2001052461A2 (en) * 2000-01-14 2001-07-19 Addvalue Technologies Ltd. Communication apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JOA-NG M ET AL: "A NOVEL SPREAD SPECTRUM-BASED SYNCHRONIZATION AND LOCATION DETERMINATION METHOD FOR WIRELESS SYSTEM", IEEE COMMUNICATIONS LETTERS, IEEE SERVICE CENTER, PISCATAWAY,US, US, vol. 3, no. 6, June 1999 (1999-06-01), pages 177 - 179, XP000830991, ISSN: 1089-7798 *

Also Published As

Publication number Publication date
IL167074A (en) 2010-06-16
EP1568156A2 (en) 2005-08-31
WO2004051887A2 (en) 2004-06-17
AU2003293054A8 (en) 2004-06-23
EP1568156B1 (en) 2012-08-29
JP4540483B2 (en) 2010-09-08
JP2006509423A (en) 2006-03-16
US7289541B2 (en) 2007-10-30
US20040109475A1 (en) 2004-06-10
AU2003293054A1 (en) 2004-06-23

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