CA2308163A1 - Smart subdivision of base station candidates for position location accuracy - Google Patents

Smart subdivision of base station candidates for position location accuracy Download PDF

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Publication number
CA2308163A1
CA2308163A1 CA002308163A CA2308163A CA2308163A1 CA 2308163 A1 CA2308163 A1 CA 2308163A1 CA 002308163 A CA002308163 A CA 002308163A CA 2308163 A CA2308163 A CA 2308163A CA 2308163 A1 CA2308163 A1 CA 2308163A1
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CA
Canada
Prior art keywords
base station
position location
location accuracy
station candidates
measurement
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002308163A
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French (fr)
Other versions
CA2308163C (en
Inventor
Bengt Bergkvist
Hans George Grubeck
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
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Individual
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 Individual filed Critical Individual
Publication of CA2308163A1 publication Critical patent/CA2308163A1/en
Application granted granted Critical
Publication of CA2308163C publication Critical patent/CA2308163C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • G01S5/04—Position of source determined by a plurality of spaced direction-finders
    • 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
    • G01S5/06—Position of source determined by co-ordinating a plurality of position lines defined by path-difference measurements
    • 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
    • G01S5/14—Determining absolute distances from a plurality of spaced points of known location

Abstract

In a cellular telephone system of the type having the capability of making measurements useful in determining the location of a mobile station, at least one such measurement is made. The measurement is made in accordance with a cost function which minimizes the costs to the systems. A position fix of the mobile station is determined using the cost function and the measurement.
CA002308163A 1997-10-21 1998-10-13 Smart subdivision of base station candidates for position location accuracy Expired - Lifetime CA2308163C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/967,330 US6154657A (en) 1997-10-21 1997-10-21 Smart subdivision of base station candidates for position location accuracy
US08/967,330 1997-10-21
PCT/SE1998/001846 WO1999021389A1 (en) 1997-10-21 1998-10-13 Smart subdivision of base station candidates for position location accuracy

Publications (2)

Publication Number Publication Date
CA2308163A1 true CA2308163A1 (en) 1999-04-29
CA2308163C CA2308163C (en) 2005-07-12

Family

ID=25512641

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002308163A Expired - Lifetime CA2308163C (en) 1997-10-21 1998-10-13 Smart subdivision of base station candidates for position location accuracy

Country Status (7)

Country Link
US (1) US6154657A (en)
CN (1) CN1135886C (en)
AU (1) AU750505B2 (en)
BR (1) BR9814826B1 (en)
CA (1) CA2308163C (en)
GB (1) GB2346516B (en)
WO (1) WO1999021389A1 (en)

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Also Published As

Publication number Publication date
BR9814826A (en) 2000-10-03
CN1135886C (en) 2004-01-21
AU750505B2 (en) 2002-07-18
CN1282500A (en) 2001-01-31
GB2346516A (en) 2000-08-09
US6154657A (en) 2000-11-28
GB0009382D0 (en) 2000-06-07
AU9562998A (en) 1999-05-10
WO1999021389A1 (en) 1999-04-29
BR9814826B1 (en) 2013-07-23
GB2346516B (en) 2002-06-12
CA2308163C (en) 2005-07-12

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Effective date: 20181015