WO2008057737A3 - System and method for estimating positioning error within a wlan-based positioning system - Google Patents

System and method for estimating positioning error within a wlan-based positioning system Download PDF

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Publication number
WO2008057737A3
WO2008057737A3 PCT/US2007/081929 US2007081929W WO2008057737A3 WO 2008057737 A3 WO2008057737 A3 WO 2008057737A3 US 2007081929 W US2007081929 W US 2007081929W WO 2008057737 A3 WO2008057737 A3 WO 2008057737A3
Authority
WO
WIPO (PCT)
Prior art keywords
wlan
enabled device
estimating
estimates
access point
Prior art date
Application number
PCT/US2007/081929
Other languages
French (fr)
Other versions
WO2008057737A2 (en
Inventor
Farshid Alizadeh-Shabdiz
Edward James Morgan
Original Assignee
Skyhook Wireless Inc
Farshid Alizadeh-Shabdiz
Edward James Morgan
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=39360310&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2008057737(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Skyhook Wireless Inc, Farshid Alizadeh-Shabdiz, Edward James Morgan filed Critical Skyhook Wireless Inc
Priority to CA2668643A priority Critical patent/CA2668643C/en
Priority to AU2007317677A priority patent/AU2007317677B2/en
Priority to EP07868513.8A priority patent/EP2092761B1/en
Priority to JP2009535389A priority patent/JP5566689B2/en
Priority to KR1020097010860A priority patent/KR101494252B1/en
Publication of WO2008057737A2 publication Critical patent/WO2008057737A2/en
Publication of WO2008057737A3 publication Critical patent/WO2008057737A3/en

Links

Classifications

    • 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
    • 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
    • H04W64/003—Locating users or terminals or network equipment for network management purposes, e.g. mobility management locating network equipment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]
    • 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
    • G01S5/0205—Details
    • G01S5/021—Calibration, monitoring or correction
    • 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
    • G01S5/0205—Details
    • G01S5/0244—Accuracy or reliability of position solution or of measurements contributing thereto
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices

Abstract

The invention features a method of estimating an expected error of a position estimate for use in a WLAN positioning system that estimates the position of a WLAN- enabled device. The WLAN-enabled device receives signals transmitted by a WLAN access point in range of the WLAN-enabled device. The method estimates the position of the WLAN-enabled device based on the received signals from the WLAN access point in range of the WLAN enabled device. The method also estimates an expected error of the position estimate based on characteristics of the WLAN access point in range of the WLAN enabled device, wherein the expected error predicts a relative accuracy of the position estimate.
PCT/US2007/081929 2006-11-07 2007-10-19 System and method for estimating positioning error within a wlan-based positioning system WO2008057737A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA2668643A CA2668643C (en) 2006-11-07 2007-10-19 System and method for estimating positioning error within a wlan-based positioning system
AU2007317677A AU2007317677B2 (en) 2006-11-07 2007-10-19 System and method for estimating positioning error within a WLAN-based positioning system
EP07868513.8A EP2092761B1 (en) 2006-11-07 2007-10-19 System and method for estimating positioning error within a wlan-based positioning system
JP2009535389A JP5566689B2 (en) 2006-11-07 2007-10-19 System and method for estimating positioning error in a positioning system based on wireless LAN
KR1020097010860A KR101494252B1 (en) 2006-11-07 2007-10-19 System and method for estimating positioning error within a wlan-based positioning system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US86471606P 2006-11-07 2006-11-07
US60/864,716 2006-11-07
US11/625,450 US7856234B2 (en) 2006-11-07 2007-01-22 System and method for estimating positioning error within a WLAN-based positioning system
US11/625,450 2007-01-22

Publications (2)

Publication Number Publication Date
WO2008057737A2 WO2008057737A2 (en) 2008-05-15
WO2008057737A3 true WO2008057737A3 (en) 2008-07-03

Family

ID=39360310

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/081929 WO2008057737A2 (en) 2006-11-07 2007-10-19 System and method for estimating positioning error within a wlan-based positioning system

Country Status (8)

Country Link
US (5) US7856234B2 (en)
EP (1) EP2092761B1 (en)
JP (2) JP5566689B2 (en)
KR (1) KR101494252B1 (en)
AU (1) AU2007317677B2 (en)
CA (1) CA2668643C (en)
SG (2) SG176444A1 (en)
WO (1) WO2008057737A2 (en)

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US8019357B2 (en) 2011-09-13

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