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CA2447914A1 - Methods and apparatuses for using mobile gps stations to synchronize basestations - Google Patents

Methods and apparatuses for using mobile gps stations to synchronize basestations Download PDF

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Publication number
CA2447914A1
CA2447914A1 CA002447914A CA2447914A CA2447914A1 CA 2447914 A1 CA2447914 A1 CA 2447914A1 CA 002447914 A CA002447914 A CA 002447914A CA 2447914 A CA2447914 A CA 2447914A CA 2447914 A1 CA2447914 A1 CA 2447914A1
Authority
CA
Canada
Prior art keywords
time
basestation
day
location
basestations
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
CA002447914A
Other languages
French (fr)
Other versions
CA2447914C (en
Inventor
Norman F. Krasner
Edward V. Jolley
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.)
SnapTrack Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2447914A1 publication Critical patent/CA2447914A1/en
Application granted granted Critical
Publication of CA2447914C publication Critical patent/CA2447914C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • H04B7/2678—Time synchronisation
    • H04B7/2687—Inter base stations synchronisation
    • H04B7/2693—Centralised synchronisation, i.e. using external universal time reference, e.g. by using a global positioning system [GPS] or by distributing time reference over the wireline network
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

Methods and apparatuses for synchronozing basestations in a cellular network.
One exemplary method performs time synchronization between at least tow basestations, a first basestation and a second basestation, of a cellular communication system. In this exemplary method, a first time-of-day and a first geographical location of a first mobile cellular receiver station (MS) are determined from a first satellite positioning system (SPS) receiver which is co-located with the first MS, and the first time-of-day and first location are transmitted by the first MS to a first basestation which determines a time-of-day of the first basestation from the first time-of-day and first location and from a known location of the first basestation. Also in this exemplary method, a second time-of-day and a second geographical location of a second MS
are determined from a second SPS receiver which is co-located with the second MS, and the second time-of-day and the second location are transmitted to a second basestation which determines a time-of-day of the second basestation from the second-time-of-day and the second location and a known location of the second basestation. Other methods and apparatuses are also described for synchronizing basestations in a cellular network.
CA002447914A 2001-05-26 2001-05-26 Methods and apparatuses for using mobile gps stations to synchronize basestations Expired - Lifetime CA2447914C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2001/017113 WO2002098024A1 (en) 2001-05-26 2001-05-26 Methods and apparatuses for using mobile gps stations to synchronize basestations

Publications (2)

Publication Number Publication Date
CA2447914A1 true CA2447914A1 (en) 2002-12-05
CA2447914C CA2447914C (en) 2008-07-22

Family

ID=21742599

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002447914A Expired - Lifetime CA2447914C (en) 2001-05-26 2001-05-26 Methods and apparatuses for using mobile gps stations to synchronize basestations

Country Status (7)

Country Link
JP (1) JP4860901B2 (en)
KR (1) KR100881869B1 (en)
CN (1) CN1294708C (en)
AU (1) AU2001261816B2 (en)
CA (1) CA2447914C (en)
IL (1) IL158850A0 (en)
WO (1) WO2002098024A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6937872B2 (en) * 2002-04-15 2005-08-30 Qualcomm Incorporated Methods and apparatuses for measuring frequencies of basestations in cellular networks using mobile GPS receivers
JP3794413B2 (en) 2003-02-28 2006-07-05 セイコーエプソン株式会社 Positioning system and positioning terminal
US20040202119A1 (en) * 2003-04-10 2004-10-14 Edge Stephen William Base station synchronization in a wireless network
KR101099175B1 (en) 2004-01-26 2011-12-27 캠브리지 포지셔닝 시스템스 리미티드 Transfer of calibrated time information in a mobile terminal
CN100421367C (en) * 2004-07-26 2008-09-24 华为技术有限公司 A method for realizing synchronous transmission of base stations
KR20070114286A (en) * 2005-02-11 2007-11-30 트루포지션, 인크. Synchronization of transmit and receive base stations
JP4577036B2 (en) * 2005-02-15 2010-11-10 セイコーエプソン株式会社 Communication base station
GB2450680B (en) * 2007-06-22 2012-05-30 Ubiquisys Ltd Controlling timing of synchronization updates
CN101183894A (en) * 2007-12-12 2008-05-21 华为技术有限公司 Star card resource sharing method and equipment, base station equipment and network system
US8730938B2 (en) * 2009-04-08 2014-05-20 Qualcomm Incorporated Minimizing the impact of self synchronization on wireless communication devices
US8774230B2 (en) * 2009-04-08 2014-07-08 Qualcomm Incorporated Conveying synchronization stratum information
CN103576122A (en) * 2013-11-04 2014-02-12 中国科学院光电研究院 Rescue locating method based on burst distress signal
CN105897330A (en) * 2016-04-01 2016-08-24 严炜 Signal synchronization method used for UWB high-precision positioning system
EP3544323B1 (en) 2016-12-28 2021-02-17 Huawei Technologies Co., Ltd. Method for determining channel delay, positioning method, and related device
CN110753298B (en) * 2018-07-05 2022-02-01 中移物联网有限公司 Positioning method and device, equipment and storage medium thereof

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5245634A (en) * 1992-03-23 1993-09-14 Motorola, Inc. Base-site synchronization in a communication system
ES2206601T5 (en) * 1995-10-09 2011-06-06 Snaptrack, Inc. COMBINED GPS POSITION AND COMMUNICATIONS SYSTEM USING SHARED CIRCUITS.
US5945944A (en) * 1996-03-08 1999-08-31 Snaptrack, Inc. Method and apparatus for determining time for GPS receivers
JPH09312607A (en) * 1996-05-23 1997-12-02 Ainsu:Kk Mobile radio system adopting avm system, base station radio equipment and mobile station radio equipment for the system
US5872774A (en) * 1997-09-19 1999-02-16 Qualcomm Incorporated Mobile station assisted timing synchronization in a CDMA communication system
US6307840B1 (en) * 1997-09-19 2001-10-23 Qualcomm Incorporated Mobile station assisted timing synchronization in 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
JPH11112410A (en) * 1997-10-06 1999-04-23 Advantest Corp Synchronization evaluating system for base station of mobile object communication network
JPH11203582A (en) * 1998-01-19 1999-07-30 Miwa Science Kenkyusho:Kk System and equipment for monitoring/searching position
US6252543B1 (en) * 1998-05-28 2001-06-26 Ericsson Inc. Location system combining ranging measurements from GPS and cellular networks
US6539004B1 (en) * 1998-09-17 2003-03-25 Lucent Technologies Inc. Time synchronization of packetized radio signals to base stations
WO2001020818A1 (en) * 1999-09-17 2001-03-22 Qualcomm Incorporated System and method for synchronizing base stations in cellular and pcs networks
US20010039192A1 (en) * 2000-01-27 2001-11-08 Osterling Jacob Kristian Time synchronization of radio networks
WO2001076285A1 (en) * 2000-03-30 2001-10-11 Cellguide Ltd. Providing time synchronization to a gps locator
US7254402B2 (en) * 2000-10-12 2007-08-07 Qualcomm Incorporated GPS satellite signal acquisition assistance system and method in a wireless communications network

Also Published As

Publication number Publication date
WO2002098024A1 (en) 2002-12-05
CN1507710A (en) 2004-06-23
JP2004533177A (en) 2004-10-28
JP4860901B2 (en) 2012-01-25
AU2001261816B2 (en) 2008-05-08
CA2447914C (en) 2008-07-22
CN1294708C (en) 2007-01-10
HK1063889A1 (en) 2005-01-14
KR20040003013A (en) 2004-01-07
IL158850A0 (en) 2004-05-12
KR100881869B1 (en) 2009-02-06

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20210526