SE9801081D0 - Method of mobile terminal tracking - Google Patents

Method of mobile terminal tracking

Info

Publication number
SE9801081D0
SE9801081D0 SE9801081A SE9801081A SE9801081D0 SE 9801081 D0 SE9801081 D0 SE 9801081D0 SE 9801081 A SE9801081 A SE 9801081A SE 9801081 A SE9801081 A SE 9801081A SE 9801081 D0 SE9801081 D0 SE 9801081D0
Authority
SE
Sweden
Prior art keywords
signal
signals
cross correlation
mobile
mobile terminal
Prior art date
Application number
SE9801081A
Other languages
Swedish (sv)
Other versions
SE9801081L (en
Inventor
Odd Henrik Levkowetz
Original Assignee
Radio Design Innovation Tj 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 Radio Design Innovation Tj Ab filed Critical Radio Design Innovation Tj Ab
Priority to SE9801081A priority Critical patent/SE9801081L/en
Publication of SE9801081D0 publication Critical patent/SE9801081D0/en
Priority to AU36335/99A priority patent/AU3633599A/en
Priority to PCT/SE1999/000498 priority patent/WO1999050683A2/en
Publication of SE9801081L publication Critical patent/SE9801081L/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
    • G01S5/08—Position of single direction-finder fixed by determining direction of a plurality of spaced sources of known location
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention relates to a method of mobile terminal tracking, and more particularly, a method of keeping track of mobile terminals in a telecommunication system using narrow lobes for communciation between a base station (BS) and mobile stations. A first signal (a) is received from one mobile station in a main communication lobe while the base station receives a second signal (b) in another lobe. According to the invention the two signals (a, b) are compared by means of cross correlation to identify the second signal (b) as emanating from the same mobile station (A). Preferably, the signals include speech signals upon which the cross correlation is done. Thus, the invention comprises a method of identification of radio signals with different angular origin through the use of cross correlation between the unknown signal and a known signal, using the speech content of the signals only, without havign to inject any additional unique information in the signal.
SE9801081A 1998-03-30 1998-03-30 Method of following a mobile terminal SE9801081L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9801081A SE9801081L (en) 1998-03-30 1998-03-30 Method of following a mobile terminal
AU36335/99A AU3633599A (en) 1998-03-30 1999-03-29 Method of mobile terminal tracking
PCT/SE1999/000498 WO1999050683A2 (en) 1998-03-30 1999-03-29 Method of mobile terminal tracking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9801081A SE9801081L (en) 1998-03-30 1998-03-30 Method of following a mobile terminal

Publications (2)

Publication Number Publication Date
SE9801081D0 true SE9801081D0 (en) 1998-03-30
SE9801081L SE9801081L (en) 1999-10-01

Family

ID=20410763

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9801081A SE9801081L (en) 1998-03-30 1998-03-30 Method of following a mobile terminal

Country Status (3)

Country Link
AU (1) AU3633599A (en)
SE (1) SE9801081L (en)
WO (1) WO1999050683A2 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793635A (en) * 1972-12-08 1974-02-19 Sierra Research Corp Locating vehicles using their voice transmissions
US5144322A (en) * 1988-11-25 1992-09-01 The United States Of America As Represented By The Secretary Of The Navy Large-aperture sparse array detector system for multiple emitter location
US5045858A (en) * 1989-08-16 1991-09-03 Cubic Defense Systems, Inc. Sidelobe identification and discrimination system with signal multiplexer-separator
US5260968A (en) * 1992-06-23 1993-11-09 The Regents Of The University Of California Method and apparatus for multiplexing communications signals through blind adaptive spatial filtering

Also Published As

Publication number Publication date
SE9801081L (en) 1999-10-01
WO1999050683A2 (en) 1999-10-07
AU3633599A (en) 1999-10-18
WO1999050683A8 (en) 2000-01-27
WO1999050683A3 (en) 1999-12-16

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Legal Events

Date Code Title Description
NAV Patent application has lapsed