WO2004105356A3 - Wireless local positioning system - Google Patents

Wireless local positioning system Download PDF

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Publication number
WO2004105356A3
WO2004105356A3 PCT/US2004/015600 US2004015600W WO2004105356A3 WO 2004105356 A3 WO2004105356 A3 WO 2004105356A3 US 2004015600 W US2004015600 W US 2004015600W WO 2004105356 A3 WO2004105356 A3 WO 2004105356A3
Authority
WO
WIPO (PCT)
Prior art keywords
wireless signal
time
positioning system
wireless local
local positioning
Prior art date
Application number
PCT/US2004/015600
Other languages
French (fr)
Other versions
WO2004105356A2 (en
Inventor
Seyed A Zekavat
Original Assignee
Univ Michigan Tech
Seyed A Zekavat
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 Univ Michigan Tech, Seyed A Zekavat filed Critical Univ Michigan Tech
Publication of WO2004105356A2 publication Critical patent/WO2004105356A2/en
Publication of WO2004105356A3 publication Critical patent/WO2004105356A3/en

Links

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
    • G01S5/12—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 by co-ordinating position lines of different shape, e.g. hyperbolic, circular, elliptical or radial
    • 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

Abstract

A method of locating mobiles via a dynamic base station. The method includes transmitting a first wireless signal from the dynamic base station at a first time, and receiving the first wireless signal at the mobile. The method also includes transmitting a second wireless signal from the mobile in response to receiving the first wireless signal, and receiving the second wireless signal at the dynamic base station at a second time. The method also includes determining a time difference between the first time and the second time, determining an angle of arrival of the second wireless signal, and locating the mobile based on the angle of arrival and the time difference.
PCT/US2004/015600 2003-05-19 2004-05-19 Wireless local positioning system WO2004105356A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US47155303P 2003-05-19 2003-05-19
US60/471,553 2003-05-19
US51144303P 2003-10-15 2003-10-15
US60/511,443 2003-10-15

Publications (2)

Publication Number Publication Date
WO2004105356A2 WO2004105356A2 (en) 2004-12-02
WO2004105356A3 true WO2004105356A3 (en) 2006-03-30

Family

ID=33479291

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/015600 WO2004105356A2 (en) 2003-05-19 2004-05-19 Wireless local positioning system

Country Status (2)

Country Link
US (1) US7489935B2 (en)
WO (1) WO2004105356A2 (en)

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Also Published As

Publication number Publication date
US20040235497A1 (en) 2004-11-25
WO2004105356A2 (en) 2004-12-02
US7489935B2 (en) 2009-02-10

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