SE9801917L - Method and systems for evaluating a position indication for a mobile device in a cellular radio network - Google Patents

Method and systems for evaluating a position indication for a mobile device in a cellular radio network

Info

Publication number
SE9801917L
SE9801917L SE9801917A SE9801917A SE9801917L SE 9801917 L SE9801917 L SE 9801917L SE 9801917 A SE9801917 A SE 9801917A SE 9801917 A SE9801917 A SE 9801917A SE 9801917 L SE9801917 L SE 9801917L
Authority
SE
Sweden
Prior art keywords
mobile unit
antennas
net
antenna
position line
Prior art date
Application number
SE9801917A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE9801917D0 (en
Inventor
Magnus Sicking
Original Assignee
Unwire Ab
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 Unwire Ab filed Critical Unwire Ab
Priority to SE9801917A priority Critical patent/SE9801917L/en
Publication of SE9801917D0 publication Critical patent/SE9801917D0/en
Priority to EP99930055A priority patent/EP1082620A2/en
Priority to PCT/SE1999/000937 priority patent/WO1999063766A2/en
Priority to AU46667/99A priority patent/AU4666799A/en
Publication of SE9801917L publication Critical patent/SE9801917L/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
    • G01S5/10—Position of receiver fixed by co-ordinating a plurality of position lines defined by path-difference measurements, e.g. omega or decca systems

Abstract

A method and a system for evaluating a positional indication of a mobile unit in a cellular radio net, such as the GSM-system, in the form of a horizontal position line. Signal bursts are transmitted essentially simultaneously via a respective antenna of two base stations. Information relating to the exact positions of the antennas is also sent via said antennas. The net is synchronized, i.e. has a common clock source. The actual time delay between a burst triggering pulse in the clock source up to the actual time point at which said burst leaves the antenna concerned is measured for each antenna. The mobile unit detects the time difference between the bursts and also receives information relating to the time delay of said antennas, via the antenna signals. The mobile unit is now able to calculate itself a position line along which it is located. By repeating the procedure with another pair of antennas in the net for instance, there is obtained a further position line, wherewith the position of the mobile unit lies at the intersection between the position lines. The position of the mobile unit along said position line may alternatively be determined with other information obtainable from the net.
SE9801917A 1998-05-29 1998-05-29 Method and systems for evaluating a position indication for a mobile device in a cellular radio network SE9801917L (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE9801917A SE9801917L (en) 1998-05-29 1998-05-29 Method and systems for evaluating a position indication for a mobile device in a cellular radio network
EP99930055A EP1082620A2 (en) 1998-05-29 1999-05-31 Method and system for evaluation of a position indication for a mobile unit in a cellular radio net
PCT/SE1999/000937 WO1999063766A2 (en) 1998-05-29 1999-05-31 Method and system for evaluation of a position indication for a mobile unit in a cellular radio net
AU46667/99A AU4666799A (en) 1998-05-29 1999-05-31 Method and system for evaluation of a position indication for a mobile unit in acellular radio net

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9801917A SE9801917L (en) 1998-05-29 1998-05-29 Method and systems for evaluating a position indication for a mobile device in a cellular radio network

Publications (2)

Publication Number Publication Date
SE9801917D0 SE9801917D0 (en) 1998-05-29
SE9801917L true SE9801917L (en) 2000-02-09

Family

ID=20411520

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9801917A SE9801917L (en) 1998-05-29 1998-05-29 Method and systems for evaluating a position indication for a mobile device in a cellular radio network

Country Status (4)

Country Link
EP (1) EP1082620A2 (en)
AU (1) AU4666799A (en)
SE (1) SE9801917L (en)
WO (1) WO1999063766A2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5600706A (en) * 1992-04-08 1997-02-04 U S West, Inc. Method and system for determining the position of a mobile receiver
US5646632A (en) * 1994-11-14 1997-07-08 Lucent Technologies Inc. Method and apparatus for a portable communication device to identify its own location
WO1998052376A1 (en) * 1997-05-09 1998-11-19 Nokia Telecommunications Oy A method for determining timing differences between radio transmitters and a radio network incorporating the same

Also Published As

Publication number Publication date
AU4666799A (en) 1999-12-20
SE9801917D0 (en) 1998-05-29
WO1999063766A3 (en) 2000-01-27
EP1082620A2 (en) 2001-03-14
WO1999063766A2 (en) 1999-12-09

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