WO2003088626A3 - System and method for locating wireless devices in an unsynchronized wireless environment - Google Patents

System and method for locating wireless devices in an unsynchronized wireless environment Download PDF

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Publication number
WO2003088626A3
WO2003088626A3 PCT/US2003/010457 US0310457W WO03088626A3 WO 2003088626 A3 WO2003088626 A3 WO 2003088626A3 US 0310457 W US0310457 W US 0310457W WO 03088626 A3 WO03088626 A3 WO 03088626A3
Authority
WO
WIPO (PCT)
Prior art keywords
signal
unsynchronized
locating
target device
known locations
Prior art date
Application number
PCT/US2003/010457
Other languages
French (fr)
Other versions
WO2003088626A2 (en
Inventor
Gary L Sugar
David S Kloper
Original Assignee
Cognio Inc
Gary L Sugar
David S Kloper
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
Priority claimed from US10/246,365 external-priority patent/US6714605B2/en
Priority claimed from US10/246,364 external-priority patent/US6850735B2/en
Application filed by Cognio Inc, Gary L Sugar, David S Kloper filed Critical Cognio Inc
Priority to AU2003223468A priority Critical patent/AU2003223468A1/en
Publication of WO2003088626A2 publication Critical patent/WO2003088626A2/en
Publication of WO2003088626A3 publication Critical patent/WO2003088626A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H04L1/1664—Details of the supervisory signal the supervisory signal being transmitted together with payload signals; piggybacking
    • 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
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic

Abstract

A system and method for determining the location of a device (100) in a wireless environment (10). The method involves transmitting a first signal. The target device (100) transmits a second signal. The first signal and second signal are received at two or more known locations in the general proximity of the target device (100). The location of the target device is computed from the time difference of arrival of the first signal and arrival of the second signal at the two or more known locations. This technique does not require the measurements made at the known locations to be time-synchronized, and can be performed completely in software, if desired, using non-real-time post-processing.
PCT/US2003/010457 2002-04-09 2003-04-08 System and method for locating wireless devices in an unsynchronized wireless environment WO2003088626A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003223468A AU2003223468A1 (en) 2002-04-09 2003-04-08 System and method for locating wireless devices in an unsynchronized wireless environment

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US37072502P 2002-04-09 2002-04-09
US60/370,725 2002-04-09
US10/246,365 US6714605B2 (en) 2002-04-22 2002-09-18 System and method for real-time spectrum analysis in a communication device
US10/246,365 2002-09-18
US10/246,364 US6850735B2 (en) 2002-04-22 2002-09-18 System and method for signal classiciation of signals in a frequency band
US10/246,364 2002-09-18
US31973702P 2002-11-27 2002-11-27
US60/319,737 2002-11-27

Publications (2)

Publication Number Publication Date
WO2003088626A2 WO2003088626A2 (en) 2003-10-23
WO2003088626A3 true WO2003088626A3 (en) 2004-02-19

Family

ID=29255560

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/010457 WO2003088626A2 (en) 2002-04-09 2003-04-08 System and method for locating wireless devices in an unsynchronized wireless environment

Country Status (3)

Country Link
AU (1) AU2003223468A1 (en)
TW (1) TW200307141A (en)
WO (1) WO2003088626A2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8654868B2 (en) 2006-04-18 2014-02-18 Qualcomm Incorporated Offloaded processing for wireless applications
KR101124785B1 (en) 2006-04-26 2012-03-23 콸콤 인코포레이티드 Dynamic distribution of device functionality and resource management
US8289159B2 (en) 2006-04-26 2012-10-16 Qualcomm Incorporated Wireless localization apparatus and method
US8406794B2 (en) 2006-04-26 2013-03-26 Qualcomm Incorporated Methods and apparatuses of initiating communication in wireless networks
US10267892B2 (en) 2010-10-04 2019-04-23 Qualcomm Incorporated Locating a device using a reference point to align location information
US9678194B2 (en) 2012-08-14 2017-06-13 Qualcomm Incorporated Positioning using observer-based time-of-arrival measurements
US9066202B2 (en) * 2012-08-14 2015-06-23 Qualcomm Incorporated Positioning using observer-based time-of-arrival measurements
TWI512316B (en) * 2012-10-02 2015-12-11 Nat Inst Chung Shan Science & Technology Remote monitoring and measuring method and the apparatus thereof
US20160183045A1 (en) * 2014-12-17 2016-06-23 AthenTek Inc. Positioning device and positioning method thereof
US11240846B2 (en) * 2020-02-06 2022-02-01 Deeyook Location Technologies Ltd. Anonymous collection of directional transmissions
CN112799428A (en) * 2020-12-31 2021-05-14 广州极飞科技股份有限公司 Control method, control device, controlled equipment and readable storage medium

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6289280B1 (en) * 1999-12-10 2001-09-11 Qualcomm Incorporated Method and apparatus for determining an algebraic solution to GPS terrestrial hybrid location system equations
US6353412B1 (en) * 1998-03-17 2002-03-05 Qualcomm, Incorporated Method and apparatus for determining position location using reduced number of GPS satellites and synchronized and unsynchronized base stations

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6353412B1 (en) * 1998-03-17 2002-03-05 Qualcomm, Incorporated Method and apparatus for determining position location using reduced number of GPS satellites and synchronized and unsynchronized base stations
US6289280B1 (en) * 1999-12-10 2001-09-11 Qualcomm Incorporated Method and apparatus for determining an algebraic solution to GPS terrestrial hybrid location system equations

Also Published As

Publication number Publication date
WO2003088626A2 (en) 2003-10-23
TW200307141A (en) 2003-12-01
AU2003223468A1 (en) 2003-10-27
AU2003223468A8 (en) 2003-10-27

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