SE9702390L - Improvements to, or with regard to, mobile radio telephony - Google Patents

Improvements to, or with regard to, mobile radio telephony

Info

Publication number
SE9702390L
SE9702390L SE9702390A SE9702390A SE9702390L SE 9702390 L SE9702390 L SE 9702390L SE 9702390 A SE9702390 A SE 9702390A SE 9702390 A SE9702390 A SE 9702390A SE 9702390 L SE9702390 L SE 9702390L
Authority
SE
Sweden
Prior art keywords
speed
mobile transceiver
mobile
received signal
present
Prior art date
Application number
SE9702390A
Other languages
Swedish (sv)
Other versions
SE9702390D0 (en
SE517660C2 (en
Inventor
Michael Andersin
Original Assignee
Telia 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 Telia Ab filed Critical Telia Ab
Priority to SE9702390A priority Critical patent/SE517660C2/en
Publication of SE9702390D0 publication Critical patent/SE9702390D0/en
Priority to PCT/SE1998/001157 priority patent/WO1998059515A1/en
Publication of SE9702390L publication Critical patent/SE9702390L/en
Publication of SE517660C2 publication Critical patent/SE517660C2/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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/02—Systems for determining distance or velocity not using reflection or reradiation using radio waves
    • G01S11/06—Systems for determining distance or velocity not using reflection or reradiation using radio waves using intensity measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/318—Received signal strength

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Quality & Reliability (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

The present invention provides, among other things, a method and algorithm for measuring a mobile transceiver's speed, based on the effects Rayleigh fading on a received radio signal transmitted between a base station and a mobile transceiver. When a mobile transceiver moves rapidly, the received signal will vary rapidly. When a mobile transceiver moves slowly, the received signal will vary slowly. By measuring the fluctuations in the received signal intensity, the speed of a mobile unit can be measured. The algorithm used in the present invention is based on a short term correlation between the fast multi-path fading and the speed of a mobile transceiver relative to its current base station. The present invention has particular application in cellular environments where the fast fading can be modelled according to a Rayleigh distribution. It is possible to exploit the mobile's speed for resource management decision.
SE9702390A 1997-06-23 1997-06-23 Improvements to, or with regard to, mobile radio telephony SE517660C2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SE9702390A SE517660C2 (en) 1997-06-23 1997-06-23 Improvements to, or with regard to, mobile radio telephony
PCT/SE1998/001157 WO1998059515A1 (en) 1997-06-23 1998-06-16 Improvements in, or relating to, mobile radio telephony

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9702390A SE517660C2 (en) 1997-06-23 1997-06-23 Improvements to, or with regard to, mobile radio telephony

Publications (3)

Publication Number Publication Date
SE9702390D0 SE9702390D0 (en) 1997-06-23
SE9702390L true SE9702390L (en) 1998-12-24
SE517660C2 SE517660C2 (en) 2002-07-02

Family

ID=20407471

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9702390A SE517660C2 (en) 1997-06-23 1997-06-23 Improvements to, or with regard to, mobile radio telephony

Country Status (2)

Country Link
SE (1) SE517660C2 (en)
WO (1) WO1998059515A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000091978A (en) * 1998-09-10 2000-03-31 Nec Corp Digital cordless telephone set and its high speed transfer recognition method
DE19923690A1 (en) * 1999-05-22 2000-12-07 Bosch Gmbh Robert Method for estimating the relative speed of a transmitter compared to a receiver and receiving device for radio signals
CN1391742A (en) * 1999-11-22 2003-01-15 艾利森电话股份有限公司 Relative velocity estimation using TPC-commands
GB0006013D0 (en) * 2000-03-13 2000-05-03 Simoco Int Ltd Mobile radio communications
DE10137498A1 (en) * 2001-07-31 2003-05-15 Siemens Ag Base station with sensor system for measuring local data
DE60137574D1 (en) * 2001-09-25 2009-03-19 St Microelectronics Nv Method and device for speed estimation of a mobile terminal, in particular a cellular mobile phone with UMTS capability
JP5125916B2 (en) * 2008-09-10 2013-01-23 富士通株式会社 Reception device and communication control method
GB2464289B (en) * 2008-10-08 2012-12-05 Samsung Electronics Co Ltd Estimating link qualities in multi-carrier systems
JP6381736B1 (en) * 2017-05-24 2018-08-29 三菱電機株式会社 Object detection device and automatic driving system using the same

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2240696B (en) * 1990-01-31 1993-11-24 Nec Corp Method of controlling handoff in cellular mobile radio communications systems
US5548806A (en) * 1993-01-25 1996-08-20 Kokusai Denshin Denwa Co., Ltd. Mobile communication system having a cell structure constituted by integrating macro cells and micro cells
US5438595A (en) * 1993-08-17 1995-08-01 Teknekron Communication Systems, Inc. Method of estimating the speed of a mobile unit in a digital wireless communication system
SE513974C2 (en) * 1994-08-19 2000-12-04 Telia Ab Speed determination of mobile devices in telecommunication systems
US5884178A (en) * 1996-11-27 1999-03-16 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for estimating speed of a mobile station in a cellular communications system

Also Published As

Publication number Publication date
SE9702390D0 (en) 1997-06-23
SE517660C2 (en) 2002-07-02
WO1998059515A1 (en) 1998-12-30

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Legal Events

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