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Method and apparatus for improving radio location accuracy

Info

Publication number
WO2004036240A3
WO2004036240A3 PCT/US2003/033124 US0333124W WO2004036240A3 WO 2004036240 A3 WO2004036240 A3 WO 2004036240A3 US 0333124 W US0333124 W US 0333124W WO 2004036240 A3 WO2004036240 A3 WO 2004036240A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
estimate
position
initial
measurements
terminal
Prior art date
Application number
PCT/US2003/033124
Other languages
French (fr)
Other versions
WO2004036240A2 (en )
Inventor
Leonid Sheynblat
Original Assignee
Qualcomm Inc
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

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W4/00Mobile application services or facilities specially adapted for wireless communication networks
    • H04W4/02Mobile application Services making use of the location of users or terminals, e.g. OMA SUPL, OMA MLP or 3GPP LCS
    • H04W4/025Mobile application Services making use of the location of users or terminals, e.g. OMA SUPL, OMA MLP or 3GPP LCS using location based information parameters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42Determining position
    • G01S19/45Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement
    • G01S19/46Determining position by combining measurements of signals from the satellite radio beacon positioning system with a supplementary measurement the supplementary measurement being of a radio-wave signal type
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S5/00Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
    • G01S5/02Position-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
    • G01S5/0257Hybrid positioning solutions
    • G01S5/0263Hybrid positioning solutions employing positioning solutions derived from one of several separate positioning systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATIONS NETWORKS
    • H04W64/00Locating users or terminals or network equipment for network management purposes, e.g. mobility management
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S19/00Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
    • G01S19/38Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
    • G01S19/39Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
    • G01S19/42Determining position
    • G01S19/48Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system

Abstract

A method and apparatus to utilize a set of measurements (either partial or compete) to improve the accuracy of an initial position estimate for a wireless terminal. The initial position estimate for the terminal is first obtained (e.g., based on a cell-ID or an enhanced cell-ID solution). Measurements are obtained for the terminal. The initial position estimate is then updated with the measurements to obtain a revised position estimate for the terminal. The updating may be performed by (1) deriving a measurement vector based on the initial position estimate and the measurements, (2) forming an observation matrix for the measurements, (3) determining a matrix of weights, (4) deriving a correction vector based on the measurement vector, the observation matrix, and the weight matrix, and (5) updating the initial position estimate with the correction vector.
PCT/US2003/033124 2002-10-17 2003-10-17 Method and apparatus for improving radio location accuracy WO2004036240A3 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US41968002 true 2002-10-17 2002-10-17
US60/419,680 2002-10-17
US43305502 true 2002-12-13 2002-12-13
US60/433,055 2002-12-13
US10/418,799 2003-04-18
US10418799 US7660588B2 (en) 2002-10-17 2003-04-18 Method and apparatus for improving radio location accuracy with measurements

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
EP20030809164 EP1552323B1 (en) 2002-10-17 2003-10-17 Method and apparatus for improving radio location accuracy
DE2003627642 DE60327642D1 (en) 2002-10-17 2003-10-17 Kortsbestimmungsgenauigkeit
JP2005501476A JP5522645B2 (en) 2002-10-17 2003-10-17 Method and apparatus for improving wireless positioning accuracy
CN 200380101586 CN100520440C (en) 2002-10-17 2003-10-17 Method and apparatus for improving radio location accuracy with measurements
KR20057006334A KR101052661B1 (en) 2002-10-17 2003-10-17 A method and apparatus for improving the wireless positioning accuracy over the measurement
CA 2501268 CA2501268C (en) 2002-10-17 2003-10-17 Method and apparatus for improving radio location accuracy

Publications (2)

Publication Number Publication Date
WO2004036240A2 true WO2004036240A2 (en) 2004-04-29
WO2004036240A3 true true WO2004036240A3 (en) 2004-06-03

Family

ID=32110827

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/033124 WO2004036240A3 (en) 2002-10-17 2003-10-17 Method and apparatus for improving radio location accuracy

Country Status (10)

Country Link
US (4) US7660588B2 (en)
JP (2) JP5522645B2 (en)
KR (1) KR101052661B1 (en)
CN (2) CN101592726B (en)
CA (1) CA2501268C (en)
DE (1) DE60327642D1 (en)
EP (2) EP1986017B1 (en)
ES (2) ES2379740T3 (en)
RU (2) RU2381520C2 (en)
WO (1) WO2004036240A3 (en)

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