WO2007133968A3 - Calculation of quality of wlan access point characterization for use in a wlan positioning system - Google Patents

Calculation of quality of wlan access point characterization for use in a wlan positioning system Download PDF

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Publication number
WO2007133968A3
WO2007133968A3 PCT/US2007/068251 US2007068251W WO2007133968A3 WO 2007133968 A3 WO2007133968 A3 WO 2007133968A3 US 2007068251 W US2007068251 W US 2007068251W WO 2007133968 A3 WO2007133968 A3 WO 2007133968A3
Authority
WO
WIPO (PCT)
Prior art keywords
wlan
quality
access point
estimation
access points
Prior art date
Application number
PCT/US2007/068251
Other languages
French (fr)
Other versions
WO2007133968A2 (en
Inventor
Farshid Alizadeh-Shabdiz
Kaveh Pahlavan
Nicolas Brachet
Original Assignee
Skyhook Wireless Inc
Farshid Alizadeh-Shabdiz
Kaveh Pahlavan
Nicolas Brachet
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 Skyhook Wireless Inc, Farshid Alizadeh-Shabdiz, Kaveh Pahlavan, Nicolas Brachet filed Critical Skyhook Wireless Inc
Priority to ES07761894T priority Critical patent/ES2376045T3/en
Priority to AT07761894T priority patent/ATE537682T1/en
Priority to KR1020087029896A priority patent/KR101466411B1/en
Priority to CA002651859A priority patent/CA2651859A1/en
Priority to EP07761894A priority patent/EP2022281B1/en
Priority to JP2009510098A priority patent/JP5291618B2/en
Publication of WO2007133968A2 publication Critical patent/WO2007133968A2/en
Publication of WO2007133968A3 publication Critical patent/WO2007133968A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/22—Traffic simulation tools or models
    • 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
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/18—Network planning tools
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • 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
    • 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
    • H04W88/02—Terminal devices
    • H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/22—Performing reselection for specific purposes for handling the traffic
    • 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]
    • 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

Methods and systems for classifying WLAN access points according to the quality of estimation of characteristics of the WLAN access points are provided. The classifications may be used to scale a reference database and quantify an expected error of estimation of the characteristics of the access points. WLAN access points may be classified based on their impact on a user's position, speed of travel, and direction of travel estimation accuracy in a WLAN positioning system. A method for determining a quality of estimation of characteristics of a Wi-Fi access point comprises a Wi-Fi enabled scanning device measuring a number of received signal strength (RSS) samples of the Wi-Fi signal transmitted by the Wi-Fi access point. A total distance traveled by the Wi- Fi enabled scanning device while measuring the number of RSS samples is estimated and used to estimate the quality of estimation of characteristics of the Wi-Fi access point.
PCT/US2007/068251 2006-05-08 2007-05-04 Calculation of quality of wlan access point characterization for use in a wlan positioning system WO2007133968A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES07761894T ES2376045T3 (en) 2006-05-08 2007-05-04 QUALITY CALCULATION OF THE CHARACTERIZATION OF THE WLAN ACCESS POINT FOR USE IN A WLAN POSITIONING SYSTEM.
AT07761894T ATE537682T1 (en) 2006-05-08 2007-05-04 CALCULATION OF THE QUALITY OF WIFI ACCESS POINT CHARACTERIZATION FOR USE IN A WIFI POSITIONING SYSTEM
KR1020087029896A KR101466411B1 (en) 2006-05-08 2007-05-04 Calculation of quality of wlan access point characterization for use in a wlan positioning system
CA002651859A CA2651859A1 (en) 2006-05-08 2007-05-04 Calculation of quality of wlan access point characterization for use in a wlan positioning system
EP07761894A EP2022281B1 (en) 2006-05-08 2007-05-04 Calculation of quality of wlan access point characterization for use in a wlan positioning system
JP2009510098A JP5291618B2 (en) 2006-05-08 2007-05-04 Method for classifying access points of WLAN positioning system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/430,224 2006-05-08
US11/430,224 US7551579B2 (en) 2006-05-08 2006-05-08 Calculation of quality of wlan access point characterization for use in a wlan positioning system

Publications (2)

Publication Number Publication Date
WO2007133968A2 WO2007133968A2 (en) 2007-11-22
WO2007133968A3 true WO2007133968A3 (en) 2008-10-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/068251 WO2007133968A2 (en) 2006-05-08 2007-05-04 Calculation of quality of wlan access point characterization for use in a wlan positioning system

Country Status (8)

Country Link
US (3) US7551579B2 (en)
EP (2) EP2022281B1 (en)
JP (1) JP5291618B2 (en)
KR (1) KR101466411B1 (en)
AT (1) ATE537682T1 (en)
CA (1) CA2651859A1 (en)
ES (2) ES2376045T3 (en)
WO (1) WO2007133968A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8909245B2 (en) 2006-11-07 2014-12-09 Skyhook Wireless, Inc. System and method for estimating positioning error within a WLAN-based positioning system
US9103900B2 (en) 2006-07-07 2015-08-11 Skyhook Wireless, Inc. System and method of gathering WLAN packet samples to improve position estimates of WLAN positioning device

Families Citing this family (125)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8601606B2 (en) 2002-11-25 2013-12-03 Carolyn W. Hafeman Computer recovery or return
US7403762B2 (en) * 2004-10-29 2008-07-22 Skyhook Wireless, Inc. Method and system for building a location beacon database
US8369264B2 (en) 2005-10-28 2013-02-05 Skyhook Wireless, Inc. Method and system for selecting and providing a relevant subset of Wi-Fi location information to a mobile client device so the client device may estimate its position with efficient utilization of resources
US7502620B2 (en) * 2005-03-04 2009-03-10 Shyhook Wireless, Inc. Encoding and compression of a location beacon database
KR101249178B1 (en) 2005-02-22 2013-04-03 스카이후크 와이어리스, 인크. Continuous data optimization in positioning system
EP1911312B8 (en) * 2005-07-25 2016-07-13 Telefonaktiebolaget LM Ericsson (publ) Means and methods for improving the handover characteristics of radio access networks
US7471954B2 (en) * 2006-02-24 2008-12-30 Skyhook Wireless, Inc. Methods and systems for estimating a user position in a WLAN positioning system based on user assigned access point locations
US7551579B2 (en) * 2006-05-08 2009-06-23 Skyhook Wireless, Inc. Calculation of quality of wlan access point characterization for use in a wlan positioning system
US7551929B2 (en) * 2006-05-08 2009-06-23 Skyhook Wireless, Inc. Estimation of speed and direction of travel in a WLAN positioning system using multiple position estimations
US7835754B2 (en) 2006-05-08 2010-11-16 Skyhook Wireless, Inc. Estimation of speed and direction of travel in a WLAN positioning system
US8014788B2 (en) * 2006-05-08 2011-09-06 Skyhook Wireless, Inc. Estimation of speed of travel using the dynamic signal strength variation of multiple WLAN access points
US7515578B2 (en) * 2006-05-08 2009-04-07 Skyhook Wireless, Inc. Estimation of position using WLAN access point radio propagation characteristics in a WLAN positioning system
US20080033646A1 (en) * 2006-08-04 2008-02-07 Morgan Edward J Systems and Methods of Automated Retrieval of Location Information from a User Device for use with Server Systems
US7706811B2 (en) 2006-09-19 2010-04-27 Broadphone Llc Signal comparison-based location determining method
US8838481B2 (en) * 2011-07-26 2014-09-16 Golba Llc Method and system for location based hands-free payment
US8193978B2 (en) 2007-11-14 2012-06-05 Golba Llc Positioning system and method using GPS with wireless access points
US8838477B2 (en) 2011-06-09 2014-09-16 Golba Llc Method and system for communicating location of a mobile device for hands-free payment
US20080248808A1 (en) * 2007-04-05 2008-10-09 Farshid Alizadeh-Shabdiz Estimation of position, speed and bearing using time difference of arrival and received signal strength in a wlan positioning system
US20080248741A1 (en) * 2007-04-05 2008-10-09 Farshid Alizadeh-Shabdiz Time difference of arrival based estimation of direction of travel in a wlan positioning system
CN101836486B (en) * 2007-10-22 2014-04-30 马维尔国际贸易有限公司 Location aware background access point scanning for WLAN
US20100020776A1 (en) * 2007-11-27 2010-01-28 Google Inc. Wireless network-based location approximation
WO2009083014A1 (en) * 2007-12-27 2009-07-09 Nokia Corporation Maintaining the integrity of configuration information of a network of access points for use in positioning an apparatus
TWI399942B (en) * 2008-02-20 2013-06-21 Ind Tech Res Inst Wireless network management system and method thereof
WO2009138565A1 (en) * 2008-05-16 2009-11-19 Nokia Corporation System and method for providing generic user plane fingerprint reporting
US8089399B2 (en) * 2008-06-06 2012-01-03 Skyhook Wireless, Inc. System and method for refining a WLAN-PS estimated location using satellite measurements in a hybrid positioning system
US8155666B2 (en) * 2008-06-16 2012-04-10 Skyhook Wireless, Inc. Methods and systems for determining location using a cellular and WLAN positioning system by selecting the best cellular positioning system solution
US8108933B2 (en) 2008-10-21 2012-01-31 Lookout, Inc. System and method for attack and malware prevention
US9781148B2 (en) 2008-10-21 2017-10-03 Lookout, Inc. Methods and systems for sharing risk responses between collections of mobile communications devices
US8087067B2 (en) 2008-10-21 2011-12-27 Lookout, Inc. Secure mobile platform system
US8051480B2 (en) 2008-10-21 2011-11-01 Lookout, Inc. System and method for monitoring and analyzing multiple interfaces and multiple protocols
US8060936B2 (en) 2008-10-21 2011-11-15 Lookout, Inc. Security status and information display system
US9043919B2 (en) 2008-10-21 2015-05-26 Lookout, Inc. Crawling multiple markets and correlating
US9235704B2 (en) 2008-10-21 2016-01-12 Lookout, Inc. System and method for a scanning API
US8533844B2 (en) 2008-10-21 2013-09-10 Lookout, Inc. System and method for security data collection and analysis
US8984628B2 (en) 2008-10-21 2015-03-17 Lookout, Inc. System and method for adverse mobile application identification
US9367680B2 (en) 2008-10-21 2016-06-14 Lookout, Inc. System and method for mobile communication device application advisement
US8347386B2 (en) 2008-10-21 2013-01-01 Lookout, Inc. System and method for server-coupled malware prevention
US8855601B2 (en) 2009-02-17 2014-10-07 Lookout, Inc. System and method for remotely-initiated audio communication
US8538815B2 (en) 2009-02-17 2013-09-17 Lookout, Inc. System and method for mobile device replacement
US9042876B2 (en) 2009-02-17 2015-05-26 Lookout, Inc. System and method for uploading location information based on device movement
US9955352B2 (en) 2009-02-17 2018-04-24 Lookout, Inc. Methods and systems for addressing mobile communications devices that are lost or stolen but not yet reported as such
US8467768B2 (en) 2009-02-17 2013-06-18 Lookout, Inc. System and method for remotely securing or recovering a mobile device
US8538434B2 (en) * 2009-06-26 2013-09-17 Intel Corporation GPS assisted network administration
US8063820B2 (en) * 2009-07-16 2011-11-22 Skyhook Wireless, Inc. Methods and systems for determining location using a hybrid satellite and WLAN positioning system by selecting the best SPS measurements
US8022877B2 (en) 2009-07-16 2011-09-20 Skyhook Wireless, Inc. Systems and methods for using a satellite positioning system to detect moved WLAN access points
US20110021207A1 (en) * 2009-07-24 2011-01-27 Morgan Edward J System and Method for Estimating Positioning Error Within a WLAN-Based Positioning System
KR101352006B1 (en) * 2009-07-27 2014-01-15 한국전자통신연구원 Device and method for collecting information related to infrastructure, and positioning method and system using the same
US8406785B2 (en) * 2009-08-18 2013-03-26 Skyhook Wireless, Inc. Method and system for estimating range of mobile device to wireless installation
US8638256B2 (en) 2009-09-29 2014-01-28 Skyhook Wireless, Inc. Accuracy and performance of a hybrid positioning system
US8279114B2 (en) * 2009-10-02 2012-10-02 Skyhook Wireless, Inc. Method of determining position in a hybrid positioning system using a dilution of precision metric
US20110080318A1 (en) * 2009-10-02 2011-04-07 Skyhook Wireless, Inc. Determining A Dilution of Precision Metric Using Two or Three GPS Satellites
JP5258865B2 (en) * 2009-11-05 2013-08-07 サムソン エスディーエス カンパニー リミテッド Wireless device location tracking system and method using wireless LANAP
US8397301B2 (en) 2009-11-18 2013-03-12 Lookout, Inc. System and method for identifying and assessing vulnerabilities on a mobile communication device
KR101342559B1 (en) 2009-12-09 2013-12-17 한국전자통신연구원 Apparatus and method for calculating location of terminal in positioning system based on wlan
US8660576B2 (en) * 2010-01-15 2014-02-25 Apple Inc. Adaptive location determination
US8634860B2 (en) * 2010-01-15 2014-01-21 Apple Inc. Location determination using cached location area codes
US8504059B2 (en) * 2010-01-15 2013-08-06 Apple Inc. Location filtering using mobile country code
US8433334B2 (en) 2010-01-15 2013-04-30 Apple Inc. Managing a location database for network-based positioning system
US8200251B2 (en) 2010-01-15 2012-06-12 Apple Inc. Determining a location of a mobile device using a location database
US8655371B2 (en) * 2010-01-15 2014-02-18 Apple Inc. Location determination using cached location area codes
US8704713B2 (en) * 2010-01-22 2014-04-22 Qualcomm Incorporated Methods and apparatuses for use in identifying wireless transmitting devices for use in estimating a location of a mobile device
KR101144030B1 (en) * 2010-02-22 2012-05-09 한국과학기술원 System and Method for Providing Discount Cards Information with Wi-Fi Radio Map
US9253605B2 (en) * 2010-03-24 2016-02-02 Skyhook Wireless, Inc. System and method for resolving multiple location estimate conflicts in a WLAN-positioning system
US8620344B2 (en) 2010-04-07 2013-12-31 Apple Inc. Location-based application program management
EP2580605B1 (en) * 2010-06-11 2016-05-04 Skyhook Wireless, Inc. Methods of and systems for measuring beacon stability of wireless access points
US8816848B2 (en) 2010-06-22 2014-08-26 Sling Media, Inc. Systems and methods for determining location from wireless signals
WO2012011624A1 (en) * 2010-07-21 2012-01-26 (주)브이아이소프트 System and method for indoor navigation based on a wi-fi radio map and utilizing user mobility in location estimation
US9638786B2 (en) 2010-07-22 2017-05-02 Mobixity, Inc. System and method for locating a mobile terminal in a finite location
KR101627506B1 (en) * 2010-08-05 2016-06-14 에스케이 텔레콤주식회사 System and Apparatus for Positioning, and Method therefor
US8606294B2 (en) 2010-10-05 2013-12-10 Skyhook Wireless, Inc. Method of and system for estimating temporal demographics of mobile users
WO2012045347A1 (en) * 2010-10-06 2012-04-12 Sony Ericsson Mobile Communications Ab Method and apparatus for identification of local beacon systems
EP2635915B1 (en) 2010-11-03 2016-05-18 Skyhook Wireless, Inc. Method of system for increasing the reliability and accuracy of location estimation in a hybrid positioning system
US8606188B2 (en) 2010-11-19 2013-12-10 Qualcomm Incorporated Self-positioning of a wireless station
WO2012069686A1 (en) 2010-11-24 2012-05-31 Crambo, S.A. Communication system and method involving the creation of virtual spaces
US8326260B1 (en) 2011-05-18 2012-12-04 Radius Networks, Inc. System and method for managing communications over a wireless network during an emergency
US8738765B2 (en) 2011-06-14 2014-05-27 Lookout, Inc. Mobile device DNS optimization
US20120331561A1 (en) 2011-06-22 2012-12-27 Broadstone Andrew J Method of and Systems for Privacy Preserving Mobile Demographic Measurement of Individuals, Groups and Locations Over Time and Space
US8788881B2 (en) 2011-08-17 2014-07-22 Lookout, Inc. System and method for mobile device push communications
US9535154B2 (en) * 2011-09-12 2017-01-03 Microsoft Technology Licensing, Llc Cache-based location determination
US8644852B2 (en) 2011-11-10 2014-02-04 Skyhook Wireless, Inc. Method and system for capturing and providing typological and contextual information about a location based on wireless beacons
US8805360B2 (en) 2012-02-14 2014-08-12 Apple Inc. Wi-Fi process
US9369845B2 (en) 2012-03-23 2016-06-14 Skyhook Wireless, Inc. Methods and systems of assigning estimated positions and attributes to wireless access points in a positioning system
US9279878B2 (en) * 2012-03-27 2016-03-08 Microsoft Technology Licensing, Llc Locating a mobile device
US9407443B2 (en) 2012-06-05 2016-08-02 Lookout, Inc. Component analysis of software applications on computing devices
US9589129B2 (en) 2012-06-05 2017-03-07 Lookout, Inc. Determining source of side-loaded software
EP2873293B1 (en) * 2012-07-11 2016-09-21 Empire Technology Development LLC Schemes for providing private wireless network
US8744484B2 (en) * 2012-07-24 2014-06-03 Qualcomm Incorporated Wireless network coverage estimation using down-sampled crowd-sourced data
WO2014031102A1 (en) * 2012-08-21 2014-02-27 Unify Gmbh & Co. Kg Method and apparatus for selecting an access point based on direction of movement
JP6027121B2 (en) * 2012-08-30 2016-11-16 株式会社日立製作所 Measuring position indicating device, measuring position indicating method
US8655307B1 (en) 2012-10-26 2014-02-18 Lookout, Inc. System and method for developing, updating, and using user device behavioral context models to modify user, device, and application state, settings and behavior for enhanced user security
CN102967848B (en) * 2012-11-28 2014-04-02 电子科技大学 Positioning method based on distance relationship library and received signal intensity
US9151824B2 (en) * 2012-12-21 2015-10-06 Qualcomm Incorporated Adaptive control of crowdsourcing data using mobile device generated parameters
US9208215B2 (en) 2012-12-27 2015-12-08 Lookout, Inc. User classification based on data gathered from a computing device
US9374369B2 (en) 2012-12-28 2016-06-21 Lookout, Inc. Multi-factor authentication and comprehensive login system for client-server networks
US8855599B2 (en) 2012-12-31 2014-10-07 Lookout, Inc. Method and apparatus for auxiliary communications with mobile communications device
US9424409B2 (en) 2013-01-10 2016-08-23 Lookout, Inc. Method and system for protecting privacy and enhancing security on an electronic device
US20140274043A1 (en) * 2013-03-15 2014-09-18 Qualcomm Incorporated Access point selection for assistance data generation
CN103379441B (en) * 2013-07-12 2016-04-13 华中科技大学 A kind of indoor orientation method based on curve and location finding
US9408037B1 (en) 2013-08-15 2016-08-02 Skyhook Wireless, Inc. Techniques for optimizing selection and update of a relevant subset of Wi-Fi AP location information by a mobile client device to efficiently utilize resources
CN104580309A (en) * 2013-10-21 2015-04-29 国民技术股份有限公司 Information pushing method as well as audio terminal, mobile terminal and pushing system
US9642008B2 (en) 2013-10-25 2017-05-02 Lookout, Inc. System and method for creating and assigning a policy for a mobile communications device based on personal data
US10122747B2 (en) 2013-12-06 2018-11-06 Lookout, Inc. Response generation after distributed monitoring and evaluation of multiple devices
US9753796B2 (en) 2013-12-06 2017-09-05 Lookout, Inc. Distributed monitoring, evaluation, and response for multiple devices
US9584191B2 (en) * 2013-12-20 2017-02-28 Southern Avionics Co. Antenna tuning unit
US20150235052A1 (en) * 2014-02-17 2015-08-20 Samsung Electronics Co., Ltd. Electronic device and method for protecting users privacy
EP3111245A1 (en) 2014-02-24 2017-01-04 Skyhook Wireless, Inc. Certified location for mobile devices
KR102280610B1 (en) 2014-04-24 2021-07-23 삼성전자주식회사 Method and apparatus for location estimation of electronic device
CN103945332B (en) * 2014-04-28 2017-08-11 清华大学 A kind of received signal strength and multi-path information united NNs indoor orientation method
EP3289510B1 (en) 2015-05-01 2020-06-17 Lookout Inc. Determining source of side-loaded software
WO2017027447A1 (en) 2015-08-11 2017-02-16 Intrasen, LLC Groundwater monitoring system and method
CN105242239B (en) * 2015-10-19 2017-06-16 华中科技大学 A kind of indoor subregion localization method based on the sub-clustering of mass-rent fingerprint and matching
US9843890B2 (en) 2016-03-18 2017-12-12 Qualcomm Incorporated Reliability in mobile device positioning in a crowdsourcing system
US9635510B1 (en) 2016-06-24 2017-04-25 Athentek Innovations, Inc. Database for Wi-Fi position estimation
US10251121B2 (en) * 2016-09-30 2019-04-02 Intel IP Corporation Apparatus, system and method of detecting one or more active wireless communication channels
US9900749B1 (en) 2016-12-12 2018-02-20 Here Global B.V. Detection of infrastructure changes in opportunity signal data
TWI637645B (en) * 2017-03-23 2018-10-01 臺灣高等法院檢察署 Method of positioning provided by base stations in mobile communication network
US10218697B2 (en) 2017-06-09 2019-02-26 Lookout, Inc. Use of device risk evaluation to manage access to services
KR101919584B1 (en) * 2017-07-03 2018-11-16 가온미디어 주식회사 crowdness information management system of subway trains based on parametric perturbation of wireless LAN
US10531423B1 (en) * 2018-06-14 2020-01-07 Microsoft Technology Licensing, Llc Distributed location determination in wireless networks
US11163071B2 (en) 2018-06-14 2021-11-02 Microsoft Technology Licensing, Llc Distributed location determination in wireless networks
US11917488B2 (en) 2019-09-13 2024-02-27 Troverlo, Inc. Passive asset tracking using observations of pseudo Wi-Fi access points
US11622234B2 (en) 2019-09-13 2023-04-04 Troverlo, Inc. Passive asset tracking using observations of Wi-Fi access points
US11589187B2 (en) 2019-09-13 2023-02-21 Troverlo, Inc. Passive sensor tracking using observations of Wi-Fi access points
US11385319B2 (en) 2020-02-26 2022-07-12 Here Global B.V. Feedback loop for improving performance of a radio-based positioning system
CN111343583B (en) * 2020-02-27 2021-11-12 厦门大洋通信有限公司 Positioning system using multiple wireless signal receivers

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070004428A1 (en) * 2005-02-22 2007-01-04 Skyhook Wireless, Inc. Continuous data optimization of moved access points in positioning systems

Family Cites Families (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0974585A (en) 1995-09-06 1997-03-18 Nippon Motorola Ltd Location detector for mobile station
US6108555A (en) 1996-05-17 2000-08-22 Ksi, Inc. Enchanced time difference localization system
US6192314B1 (en) * 1998-03-25 2001-02-20 Navigation Technologies Corp. Method and system for route calculation in a navigation application
JP2000029521A (en) * 1998-07-08 2000-01-28 Fuji Heavy Ind Ltd Autonomous traveling method and autonomously traveling vehicle
KR100272431B1 (en) * 1998-09-03 2000-11-15 김영환 Device for expanding coverage of cdma mobile communication system and method thereof
US7164725B2 (en) * 2000-03-10 2007-01-16 Motorola, Inc. Method and apparatus for antenna array beamforming
US6711404B1 (en) 2000-07-21 2004-03-23 Scoreboard, Inc. Apparatus and method for geostatistical analysis of wireless signal propagation
US7373425B2 (en) * 2000-08-22 2008-05-13 Conexant Systems, Inc. High-speed MAC address search engine
US7076225B2 (en) * 2001-02-16 2006-07-11 Qualcomm Incorporated Variable gain selection in direct conversion receiver
FI110289B (en) 2001-02-23 2002-12-31 Nokia Corp Procedure for location, location system and electronic device
JP4349758B2 (en) * 2001-03-27 2009-10-21 パイオニア株式会社 Positioning device
EP1384339A1 (en) 2001-03-28 2004-01-28 Norwood Systems Pty Ltd. Minimising signal interference within a wireless network
DE60117202D1 (en) 2001-09-03 2006-04-20 St Microelectronics Nv A method and apparatus for estimating the speed of a mobile terminal in a wireless communication system
US20030054830A1 (en) 2001-09-04 2003-03-20 Zi Corporation Navigation system for mobile communication devices
US6888811B2 (en) 2001-09-24 2005-05-03 Motorola, Inc. Communication system for location sensitive information and method therefor
JP3750598B2 (en) * 2001-12-19 2006-03-01 株式会社日立製作所 Server, portable terminal device, and position detection system
US20030118015A1 (en) * 2001-12-20 2003-06-26 Magnus Gunnarsson Location based notification of wlan availability via wireless communication network
US20030125045A1 (en) * 2001-12-27 2003-07-03 Riley Wyatt Thomas Creating and using base station almanac information in a wireless communication system having a position location capability
KR20030067341A (en) * 2002-02-08 2003-08-14 주식회사 팬택앤큐리텔 Coherent type demodulation device of base transceiver station in interim standard-2000 system
JP2005539409A (en) 2002-03-01 2005-12-22 エンテラシス ネットワークス インコーポレイテッド Position recognition data network
US20040203420A1 (en) 2002-04-10 2004-10-14 Rick Roland R. Method and apparatus for calculating a representative measurement from multiple data measurements
US7460870B2 (en) 2002-04-25 2008-12-02 Qualcomm Incorporated Method and apparatus for location determination in a wireless assisted hybrid positioning system
US6664925B1 (en) * 2002-05-02 2003-12-16 Microsoft Corporation Method and system for determining the location of a mobile computer
JP2003329757A (en) * 2002-05-13 2003-11-19 Hitachi Ltd Radio method and apparatus for measuring position
US7167715B2 (en) * 2002-05-17 2007-01-23 Meshnetworks, Inc. System and method for determining relative positioning in AD-HOC networks
FI113092B (en) 2002-05-31 2004-02-27 Ekahau Oy Measures of position differences and applications
US8095657B2 (en) * 2002-07-24 2012-01-10 Oracle America, Inc. First thread lock management for distributed data systems
US6865395B2 (en) * 2002-08-08 2005-03-08 Qualcomm Inc. Area based position determination for terminals in a wireless network
US20040057408A1 (en) * 2002-09-19 2004-03-25 Gray William H. Method and system of providing bandwidth on demand to WAN user from WLAN access point
JP3829784B2 (en) 2002-09-19 2006-10-04 日本電信電話株式会社 POSITION DETECTION METHOD AND SYSTEM AND RADIO COMMUNICATION DEVICE
US7660588B2 (en) 2002-10-17 2010-02-09 Qualcomm Incorporated Method and apparatus for improving radio location accuracy with measurements
US7590079B2 (en) 2002-10-25 2009-09-15 Motorola, Inc. Method of communication device initiated frame exchange
US7050787B2 (en) * 2002-10-30 2006-05-23 Lockheed Martin Corporation Cooperative element location system
US7257411B2 (en) * 2002-12-27 2007-08-14 Ntt Docomo, Inc. Selective fusion location estimation (SELFLOC) for wireless access technologies
WO2004073243A2 (en) * 2003-02-13 2004-08-26 Wavelink Corporation Channel, coding and power management for wireless local area networks
US7369858B2 (en) * 2003-02-24 2008-05-06 Autocell Laboratories, Inc. Apparatus for self-adjusting power at a wireless station to reduce inter-channel interference
EP1603642A2 (en) * 2003-03-03 2005-12-14 Adventus Intellectual Property Inc. Composite material for a permeable reactive barrier
US6978023B2 (en) * 2003-03-25 2005-12-20 Sony Corporation Apparatus and method for location based wireless client authentication
US8483717B2 (en) * 2003-06-27 2013-07-09 Qualcomm Incorporated Local area network assisted positioning
US8971913B2 (en) 2003-06-27 2015-03-03 Qualcomm Incorporated Method and apparatus for wireless network hybrid positioning
US7250907B2 (en) 2003-06-30 2007-07-31 Microsoft Corporation System and methods for determining the location dynamics of a portable computing device
US7123928B2 (en) * 2003-07-21 2006-10-17 Qualcomm Incorporated Method and apparatus for creating and using a base station almanac for position determination
GB2405276B (en) * 2003-08-21 2005-10-12 Motorola Inc Measuring distance using wireless communication
US20050073980A1 (en) 2003-09-17 2005-04-07 Trapeze Networks, Inc. Wireless LAN management
US7904244B2 (en) * 2003-11-18 2011-03-08 Sarimo Technologies, LLC Determining a location or position using information from multiple location and positioning technologies and applications using such a determined location or position
KR100863539B1 (en) 2004-01-09 2008-10-15 닛본 덴끼 가부시끼가이샤 Communication Method
US7277707B2 (en) 2004-03-25 2007-10-02 Lucent Technologies Inc. Radio telecommunications network, and a method of selecting base station antennas for connection with a mobile user terminal
EP1735956B8 (en) 2004-04-06 2012-03-28 Koninklijke Philips Electronics N.V. Location based handoff for mobile devices
US7359718B2 (en) 2004-04-30 2008-04-15 Hong Kong Applied Science And Technology Research Institute Co., Ltd. Location determination and location tracking in wireless networks
US7433696B2 (en) * 2004-05-18 2008-10-07 Cisco Systems, Inc. Wireless node location mechanism featuring definition of search region to optimize location computation
EP1759222A1 (en) * 2004-06-09 2007-03-07 Philips Intellectual Property & Standards GmbH Automatic generation of signal strength map for location determination of mobile devices
US7319878B2 (en) 2004-06-18 2008-01-15 Qualcomm Incorporated Method and apparatus for determining location of a base station using a plurality of mobile stations in a wireless mobile network
US7509131B2 (en) 2004-06-29 2009-03-24 Microsoft Corporation Proximity detection using wireless signal strengths
JP2006033207A (en) 2004-07-14 2006-02-02 Nec Corp Position information providing system, radio base station device, position information providing method used for both, and program thereof
WO2006026679A1 (en) 2004-08-31 2006-03-09 At & T Corp. Method and system for assigning channels in a wireless lan
JP2006080681A (en) * 2004-09-07 2006-03-23 Ntt Docomo Inc System and method for position detection
US8032156B2 (en) 2004-09-07 2011-10-04 Qualcomm Incorporated Procedure to increase position location availabilty
US7515548B2 (en) 2004-09-28 2009-04-07 Texas Instruments Incorporated End-point based approach for determining network status in a wireless local area network
US8005483B2 (en) 2004-10-27 2011-08-23 Qwest Communications International Inc. Mobile caching and data relay vectoring systems and methods
US8369264B2 (en) 2005-10-28 2013-02-05 Skyhook Wireless, Inc. Method and system for selecting and providing a relevant subset of Wi-Fi location information to a mobile client device so the client device may estimate its position with efficient utilization of resources
US7403762B2 (en) 2004-10-29 2008-07-22 Skyhook Wireless, Inc. Method and system for building a location beacon database
EP1832138A1 (en) 2004-12-27 2007-09-12 MYTILINAIOS, A. Stylianos Position location via geometric loci construction
US7696923B2 (en) 2005-02-03 2010-04-13 Mexens Intellectual Property Holding Llc System and method for determining geographic location of wireless computing devices
US7397424B2 (en) * 2005-02-03 2008-07-08 Mexens Intellectual Property Holding, Llc System and method for enabling continuous geographic location estimation for wireless computing devices
EP1689126A1 (en) * 2005-02-08 2006-08-09 Alcatel Location service for use in a Wireless LAN
US7502620B2 (en) 2005-03-04 2009-03-10 Shyhook Wireless, Inc. Encoding and compression of a location beacon database
US20060221918A1 (en) 2005-04-01 2006-10-05 Hitachi, Ltd. System, method and computer program product for providing content to a remote device
US20060229088A1 (en) * 2005-04-12 2006-10-12 Sbc Knowledge Ventures L.P. Voice broadcast location system
CN101208974B (en) 2005-05-04 2012-09-12 意大利电信股份公司 Method for optimizing channel scanning function in telecommunication network of mobile terminal
JP4568641B2 (en) * 2005-05-27 2010-10-27 株式会社日立製作所 Wireless communication system, node position calculation method, and node
US7271764B2 (en) * 2005-06-30 2007-09-18 Intel Corporation Time of arrival estimation mechanism
US7599714B2 (en) 2005-09-30 2009-10-06 Alcatel-Lucent Usa Inc. Increasing the range of access point cells for a given throughput in a downlink of a wireless local area network
US7471455B2 (en) * 2005-10-28 2008-12-30 Cymer, Inc. Systems and methods for generating laser light shaped as a line beam
RU2390791C2 (en) * 2005-11-07 2010-05-27 Квэлкомм Инкорпорейтед Positioning for wlan and other wireless networks
US20070150516A1 (en) * 2005-11-23 2007-06-28 Morgan Edward J Location toolbar for internet search and communication
US8089407B2 (en) 2005-12-16 2012-01-03 Alcatel Lucent System and method for model-free position estimation and tracking
US7769306B2 (en) * 2005-12-30 2010-08-03 Lexmark International, Inc. Storing printer density control parameters in cartridge memory
US7471954B2 (en) * 2006-02-24 2008-12-30 Skyhook Wireless, Inc. Methods and systems for estimating a user position in a WLAN positioning system based on user assigned access point locations
JP4768494B2 (en) * 2006-03-31 2011-09-07 テルモ株式会社 Diagnostic imaging apparatus and processing method thereof
US7576694B2 (en) * 2006-04-20 2009-08-18 Toshiba America Research, Inc. Secure wireless user localization scheme using transmission range variation
US8014788B2 (en) 2006-05-08 2011-09-06 Skyhook Wireless, Inc. Estimation of speed of travel using the dynamic signal strength variation of multiple WLAN access points
US7551579B2 (en) 2006-05-08 2009-06-23 Skyhook Wireless, Inc. Calculation of quality of wlan access point characterization for use in a wlan positioning system
US7515578B2 (en) * 2006-05-08 2009-04-07 Skyhook Wireless, Inc. Estimation of position using WLAN access point radio propagation characteristics in a WLAN positioning system
US7551929B2 (en) 2006-05-08 2009-06-23 Skyhook Wireless, Inc. Estimation of speed and direction of travel in a WLAN positioning system using multiple position estimations
US7835754B2 (en) * 2006-05-08 2010-11-16 Skyhook Wireless, Inc. Estimation of speed and direction of travel in a WLAN positioning system
US8144673B2 (en) 2006-07-07 2012-03-27 Skyhook Wireless, Inc. Method and system for employing a dedicated device for position estimation by a WLAN positioning system
US20080033646A1 (en) 2006-08-04 2008-02-07 Morgan Edward J Systems and Methods of Automated Retrieval of Location Information from a User Device for use with Server Systems
US7856234B2 (en) 2006-11-07 2010-12-21 Skyhook Wireless, Inc. System and method for estimating positioning error within a WLAN-based positioning system
US7889124B2 (en) * 2007-01-26 2011-02-15 Mohammad Mojahedul Islam Handheld wireless utility asset mapping device
US20080248741A1 (en) 2007-04-05 2008-10-09 Farshid Alizadeh-Shabdiz Time difference of arrival based estimation of direction of travel in a wlan positioning system
US20080248808A1 (en) 2007-04-05 2008-10-09 Farshid Alizadeh-Shabdiz Estimation of position, speed and bearing using time difference of arrival and received signal strength in a wlan positioning system
US8089399B2 (en) 2008-06-06 2012-01-03 Skyhook Wireless, Inc. System and method for refining a WLAN-PS estimated location using satellite measurements in a hybrid positioning system
US8155666B2 (en) 2008-06-16 2012-04-10 Skyhook Wireless, Inc. Methods and systems for determining location using a cellular and WLAN positioning system by selecting the best cellular positioning system solution
US8063820B2 (en) * 2009-07-16 2011-11-22 Skyhook Wireless, Inc. Methods and systems for determining location using a hybrid satellite and WLAN positioning system by selecting the best SPS measurements
US8022877B2 (en) * 2009-07-16 2011-09-20 Skyhook Wireless, Inc. Systems and methods for using a satellite positioning system to detect moved WLAN access points
US20110021207A1 (en) 2009-07-24 2011-01-27 Morgan Edward J System and Method for Estimating Positioning Error Within a WLAN-Based Positioning System
US8406785B2 (en) * 2009-08-18 2013-03-26 Skyhook Wireless, Inc. Method and system for estimating range of mobile device to wireless installation
US8638256B2 (en) * 2009-09-29 2014-01-28 Skyhook Wireless, Inc. Accuracy and performance of a hybrid positioning system
US20110080318A1 (en) * 2009-10-02 2011-04-07 Skyhook Wireless, Inc. Determining A Dilution of Precision Metric Using Two or Three GPS Satellites
US8279114B2 (en) * 2009-10-02 2012-10-02 Skyhook Wireless, Inc. Method of determining position in a hybrid positioning system using a dilution of precision metric
US9253605B2 (en) * 2010-03-24 2016-02-02 Skyhook Wireless, Inc. System and method for resolving multiple location estimate conflicts in a WLAN-positioning system
EP2580605B1 (en) 2010-06-11 2016-05-04 Skyhook Wireless, Inc. Methods of and systems for measuring beacon stability of wireless access points
US8606294B2 (en) * 2010-10-05 2013-12-10 Skyhook Wireless, Inc. Method of and system for estimating temporal demographics of mobile users
EP2635915B1 (en) * 2010-11-03 2016-05-18 Skyhook Wireless, Inc. Method of system for increasing the reliability and accuracy of location estimation in a hybrid positioning system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070004428A1 (en) * 2005-02-22 2007-01-04 Skyhook Wireless, Inc. Continuous data optimization of moved access points in positioning systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9103900B2 (en) 2006-07-07 2015-08-11 Skyhook Wireless, Inc. System and method of gathering WLAN packet samples to improve position estimates of WLAN positioning device
US8909245B2 (en) 2006-11-07 2014-12-09 Skyhook Wireless, Inc. System and method for estimating positioning error within a WLAN-based positioning system

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