WO2008021889A3 - Wifi geolocation from carrier-managed system geolocation of a dual mode device - Google Patents

Wifi geolocation from carrier-managed system geolocation of a dual mode device Download PDF

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Publication number
WO2008021889A3
WO2008021889A3 PCT/US2007/075490 US2007075490W WO2008021889A3 WO 2008021889 A3 WO2008021889 A3 WO 2008021889A3 US 2007075490 W US2007075490 W US 2007075490W WO 2008021889 A3 WO2008021889 A3 WO 2008021889A3
Authority
WO
WIPO (PCT)
Prior art keywords
geolocation
carrier
dual mode
mode device
managed system
Prior art date
Application number
PCT/US2007/075490
Other languages
French (fr)
Other versions
WO2008021889A2 (en
Inventor
Cary Fitzgerald
Original Assignee
Cisco Tech Inc
Cary Fitzgerald
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 Cisco Tech Inc, Cary Fitzgerald filed Critical Cisco Tech Inc
Priority to EP07813901.1A priority Critical patent/EP2052489B1/en
Priority to CN200780029513.3A priority patent/CN101502134B/en
Publication of WO2008021889A2 publication Critical patent/WO2008021889A2/en
Publication of WO2008021889A3 publication Critical patent/WO2008021889A3/en

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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
    • 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
    • G01S5/0249—Determining position using measurements made by a non-stationary device other than the device whose position is being determined
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information

Abstract

In one embodiment, a carrier-managed system such as the cellular network or the Global Positioning System (GPS), is leveraged to directly determine or triangulate geographic locations of the dual mode device (fig. I, 102) and then the access point (fig.1, 110, 1 12). Advantageously, a service provider may constantly and automatically update its database (fig.1, 108) with the geolocation of APs and associated devices to thereby provide accurate information and improved emergency services.
PCT/US2007/075490 2006-08-15 2007-08-08 Wifi geolocation from carrier-managed system geolocation of a dual mode device WO2008021889A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07813901.1A EP2052489B1 (en) 2006-08-15 2007-08-08 Apparatus and method for determining the geolocation of an access point using a dual mode device
CN200780029513.3A CN101502134B (en) 2006-08-15 2007-08-08 Wifi geolocation from carrier-managed system geolocation of a dual mode device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/504,920 2006-08-15
US11/504,920 US7907579B2 (en) 2006-08-15 2006-08-15 WiFi geolocation from carrier-managed system geolocation of a dual mode device

Publications (2)

Publication Number Publication Date
WO2008021889A2 WO2008021889A2 (en) 2008-02-21
WO2008021889A3 true WO2008021889A3 (en) 2008-11-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/075490 WO2008021889A2 (en) 2006-08-15 2007-08-08 Wifi geolocation from carrier-managed system geolocation of a dual mode device

Country Status (4)

Country Link
US (1) US7907579B2 (en)
EP (1) EP2052489B1 (en)
CN (1) CN101502134B (en)
WO (1) WO2008021889A2 (en)

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Also Published As

Publication number Publication date
CN101502134B (en) 2015-05-13
CN101502134A (en) 2009-08-05
EP2052489B1 (en) 2017-02-01
US20080045233A1 (en) 2008-02-21
US7907579B2 (en) 2011-03-15
EP2052489A2 (en) 2009-04-29
EP2052489A4 (en) 2012-02-08
WO2008021889A2 (en) 2008-02-21

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