CA2271802A1 - Method for estimating speed of a mobile station in a cellular communications system - Google Patents

Method for estimating speed of a mobile station in a cellular communications system Download PDF

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Publication number
CA2271802A1
CA2271802A1 CA002271802A CA2271802A CA2271802A1 CA 2271802 A1 CA2271802 A1 CA 2271802A1 CA 002271802 A CA002271802 A CA 002271802A CA 2271802 A CA2271802 A CA 2271802A CA 2271802 A1 CA2271802 A1 CA 2271802A1
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CA
Canada
Prior art keywords
signal quality
frequency offset
communications system
value
cellular communications
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
CA002271802A
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French (fr)
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CA2271802C (en
Inventor
Linus Ericsson
Peter Bjork
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Telefonaktiebolaget LM Ericsson AB
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Individual
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Publication date
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Application filed by Individual filed Critical Individual
Publication of CA2271802A1 publication Critical patent/CA2271802A1/en
Application granted granted Critical
Publication of CA2271802C publication Critical patent/CA2271802C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G01S11/10—Systems for determining distance or velocity not using reflection or reradiation using radio waves using Doppler effect

Abstract

A method is provided for accurately estimating the speed of mobile stations in a cellular communications system. Taking into account the Doppler shift of the information in a received burst, a frequency offset value is calculated for each received burst. For each burst, a signal quality value is calculated, which is compared with a predetermined signal quality threshold level. The absolute value of each of the frequency offset values whose signal quality value meets or exceeds the predetermined signal quality threshold is obtained. The frequency offset values whose signal quality values do not meet the threshold level are disregarded. The total mean of all of the absolute frequency offset values is then calculated. The total mean value is used to accurately estimate the speed of the mobile station. Consequently, the speed of faster and slower mobile stations can be readily distinguished, and a hierarchical cell structure can be effectively used to increase capacity and reduce handovers in a cellular communications system.
CA002271802A 1996-11-27 1997-11-27 Method for estimating speed of a mobile station in a cellular communications system Expired - Fee Related CA2271802C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/757,517 1996-11-27
US08/757,517 US5884178A (en) 1996-11-27 1996-11-27 Method and apparatus for estimating speed of a mobile station in a cellular communications system
PCT/SE1997/001993 WO1998024251A2 (en) 1996-11-27 1997-11-27 Method for estimating speed of a mobile station in a cellular communications system

Publications (2)

Publication Number Publication Date
CA2271802A1 true CA2271802A1 (en) 1998-06-04
CA2271802C CA2271802C (en) 2007-04-10

Family

ID=25048114

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002271802A Expired - Fee Related CA2271802C (en) 1996-11-27 1997-11-27 Method for estimating speed of a mobile station in a cellular communications system

Country Status (11)

Country Link
US (1) US5884178A (en)
EP (1) EP0941621B1 (en)
JP (1) JP4143128B2 (en)
CN (1) CN1104159C (en)
AU (1) AU731356B2 (en)
BR (1) BR9713444A (en)
CA (1) CA2271802C (en)
DE (1) DE69738453D1 (en)
HU (1) HUP0000571A3 (en)
TW (1) TW351032B (en)
WO (1) WO1998024251A2 (en)

Families Citing this family (53)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19631874A1 (en) * 1996-08-07 1998-02-12 Philips Patentverwaltung Mobile terminal
US6275543B1 (en) 1996-10-11 2001-08-14 Arraycomm, Inc. Method for reference signal generation in the presence of frequency offsets in a communications station with spatial processing
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
US6032033A (en) * 1996-12-03 2000-02-29 Nortel Networks Corporation Preamble based selection diversity in a time division multiple access radio system using digital demodulation
WO1998034358A1 (en) * 1997-02-04 1998-08-06 Nokia Telecommunications Oy Adaptive compensation of doppler shift in a mobile communication system
WO1998034357A1 (en) * 1997-02-04 1998-08-06 Nokia Networks Oy Compensation of doppler shift in a mobile communication system
JPH10290475A (en) * 1997-02-12 1998-10-27 Fujitsu Ltd Mobile communication system
US5963870A (en) * 1997-03-26 1999-10-05 Nortel Networks Corporation Process for switching between IS-95 forward power control and fast forward power control
SE517660C2 (en) * 1997-06-23 2002-07-02 Telia Ab Improvements to, or with regard to, mobile radio telephony
US6052598A (en) * 1997-09-30 2000-04-18 At&T Corp Method for predicting the location of a mobile station in a mobile communications network
CA2230589C (en) * 1998-02-25 2004-02-10 Wen Tong Determining sir in a communications system
US6356608B1 (en) * 1998-06-29 2002-03-12 Telefonaktiebolaget Lm Ericsson (Publ) Method, apparatus, and system for determining a location of a frequency synchronization signal
WO2000001174A1 (en) * 1998-06-30 2000-01-06 Mitsubishi Denki Kabushiki Kaisha Mobile communication terminal
US7054635B1 (en) * 1998-11-09 2006-05-30 Telefonaktiebolaget Lm Ericsson (Publ) Cellular communications network and method for dynamically changing the size of a cell due to speech quality
US6370357B1 (en) * 1998-12-21 2002-04-09 Nortel Networks Limited Mobile speed estimation for digital cellular radio systems
WO2000040042A1 (en) * 1998-12-23 2000-07-06 Telecommunication Laboratories, Chunghwa Telecom Co., Ltd. Fuzzy channel allocation controller having service quality insuring
DE69923541T2 (en) * 1999-05-10 2006-02-16 Lucent Technologies Inc. A method of determining the speed of a mobile station in a cellular communication system
US6141567A (en) * 1999-06-07 2000-10-31 Arraycomm, Inc. Apparatus and method for beamforming in a changing-interference environment
US7139592B2 (en) * 1999-06-21 2006-11-21 Arraycomm Llc Null deepening for an adaptive antenna based communication station
EP1077533A1 (en) 1999-08-16 2001-02-21 Matsushita Electric Industrial Co., Ltd. Digital mobile wireless terminal and system using the same
US6233270B1 (en) * 1999-09-28 2001-05-15 Telefonaktiebolaget Lm Ericsson (Publ) Interference diversity in synchronized networks
JP2001102970A (en) * 1999-09-29 2001-04-13 Matsushita Electric Ind Co Ltd Communication terminal device and radio communication method
JP3388215B2 (en) * 2000-02-03 2003-03-17 日本電気株式会社 Mobile phone with moving state detection function
US6564042B1 (en) * 2000-03-03 2003-05-13 Qualcomm Incorporated Velocity-estimation-based gain tables
US6862457B1 (en) * 2000-06-21 2005-03-01 Qualcomm Incorporated Method and apparatus for adaptive reverse link power control using mobility profiles
JP3588040B2 (en) * 2000-07-26 2004-11-10 松下電器産業株式会社 Communication terminal device and base station device
US7043259B1 (en) * 2000-09-29 2006-05-09 Arraycomm, Inc. Repetitive paging from a wireless data base station having a smart antenna system
CN1423751A (en) * 2000-10-23 2003-06-11 连宇通信有限公司 Method of measuring the Doppler frequency-shift and the relevant device
US7120390B2 (en) * 2001-03-21 2006-10-10 Agere Systems Inc. BLUETOOTH smart offset compensation
GB2374767B (en) * 2001-03-21 2005-04-13 Agere Syst Guardian Corp Bluetooth smart offset compensation
DE10147462A1 (en) * 2001-09-20 2003-04-17 Bombardier Transp Gmbh Method and device for locating vehicles
EP1313281B1 (en) * 2001-11-16 2005-02-02 Com-Research GmbH Solutions for Communication Systems Method and system for frequency offset estimation in digital carrier-modulated communication systems
WO2003047281A1 (en) * 2001-11-26 2003-06-05 Nokia Corporation Mac layer inverse multiplexing in a third generation ran
US7126996B2 (en) * 2001-12-28 2006-10-24 Motorola, Inc. Adaptive transmission method
US7302266B1 (en) * 2002-10-17 2007-11-27 Sprint Spectrum L.P. Method and system for frequency usage
JP2004201001A (en) * 2002-12-18 2004-07-15 Matsushita Electric Ind Co Ltd Mobile communication system and mobile communication control method
US6882694B2 (en) * 2002-12-31 2005-04-19 Nokia Corporation Apparatus, and associated method, for estimating frequency offset of a data symbol communicated in a communication system
JP2004235800A (en) * 2003-01-29 2004-08-19 Evolium Sas Handover control method for portable radio, base station controller, and mobile radio
US7558575B2 (en) * 2003-07-24 2009-07-07 Motorola Inc. Method and apparatus for wireless communication in a high velocity environment
KR101002857B1 (en) * 2003-09-16 2010-12-21 삼성전자주식회사 Method and apparatus for estimating a velocity of a mobile terminal in a mobile communication system
CN101057468B (en) * 2004-11-15 2014-06-18 皇家飞利浦电子股份有限公司 Method and device for detecting high-mobility state of mobile terminal and related equipment
JP4699843B2 (en) * 2005-09-15 2011-06-15 富士通株式会社 Mobile communication system, and base station apparatus and mobile station apparatus used in mobile communication system
KR100656827B1 (en) * 2006-01-02 2006-12-13 주식회사 이노와이어리스 Mobile wimax signal analyzing method
JP4876124B2 (en) * 2006-04-11 2012-02-15 株式会社エヌ・ティ・ティ・ドコモ Moving speed detection device for mobile terminal
US7697634B2 (en) * 2006-08-25 2010-04-13 Tektronix, Inc. Interpolation of complex signals
US8160503B2 (en) 2009-02-27 2012-04-17 Research In Motion Limited Method and system for characterizing a radio channel of a wireless network using variability of synchronization
EP2224606B1 (en) 2009-02-27 2012-10-03 Research In Motion Limited A method and system for characterizing a radio channel of a wireless network using variability of synchronization
JP5169933B2 (en) * 2009-03-24 2013-03-27 富士通株式会社 Frequency control device, frequency control method, and base station device
JP2011141226A (en) * 2010-01-08 2011-07-21 Sony Corp Receiving apparatus, electric apparatus, and method for estimating travelling speed
US8467809B2 (en) * 2010-02-23 2013-06-18 Garmin Switzerland Gmbh Method and apparatus for estimating cellular tower location
US9736626B2 (en) 2011-11-04 2017-08-15 Zte Wistron Telecom Ab Method and apparatus for estimating speed of a mobile terminal
CN103975539A (en) * 2011-12-06 2014-08-06 爱立信(中国)通信有限公司 Doppler shift compensation apparatus and method
US10791437B2 (en) * 2018-04-18 2020-09-29 Hdwb, Llc Data transfer utilizing two-way radio transmission independent of or concurrent with other data transfer means

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4825448A (en) * 1986-08-07 1989-04-25 International Mobile Machines Corporation Subscriber unit for wireless digital telephone system
SE462942B (en) * 1989-01-26 1990-09-17 Ericsson Telefon Ab L M SETTING AND DEVICE FOR FAST SPEED CONTROL OF A COHERENT RADIO RECEIVER
US5161248A (en) * 1989-10-02 1992-11-03 Motorola, Inc. Method of predicting cell-to-cell hand-offs for a satellite cellular communications system
US5297165A (en) * 1990-07-06 1994-03-22 Nippon Telegraph And Telephone Corporation Equalizer for radio receive signal
GB9016277D0 (en) * 1990-07-25 1990-09-12 British Telecomm Location and handover in mobile radio systems
GB9016341D0 (en) * 1990-07-25 1990-09-12 British Telecomm Speed estimation
US5376894A (en) * 1992-12-31 1994-12-27 Pacific Communication Sciences, Inc. Phase estimation and synchronization using a PSK demodulator
US5432822A (en) * 1993-03-12 1995-07-11 Hughes Aircraft Company Error correcting decoder and decoding method employing reliability based erasure decision-making in cellular communication system
GB2285198B (en) * 1993-12-22 1998-03-04 Nokia Mobile Phones Ltd Multi-mode radio telephone
US5513221A (en) * 1994-05-19 1996-04-30 Hughes Aircraft Company Doppler bandwidth dependent estimation of a communications channel
US5659545A (en) * 1994-11-15 1997-08-19 Motorola, Inc. Apparatus for mobile unit acquisition in a satellite communication system and method therefor
US5729558A (en) * 1995-03-08 1998-03-17 Lucent Technologies Inc. Method of compensating for Doppler error in a wireless communications system, such as for GSM and IS54
US5657487A (en) * 1995-06-05 1997-08-12 Airnet Communications Corporation Mobile telephone location process making use of handoff data
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
DE69738453D1 (en) 2008-02-21
EP0941621B1 (en) 2008-01-09
WO1998024251A3 (en) 1998-08-13
WO1998024251A2 (en) 1998-06-04
CN1104159C (en) 2003-03-26
BR9713444A (en) 2000-03-28
US5884178A (en) 1999-03-16
JP4143128B2 (en) 2008-09-03
EP0941621A2 (en) 1999-09-15
AU731356B2 (en) 2001-03-29
HUP0000571A2 (en) 2000-06-28
JP2001504670A (en) 2001-04-03
TW351032B (en) 1999-01-21
HUP0000571A3 (en) 2002-02-28
CA2271802C (en) 2007-04-10
AU5144098A (en) 1998-06-22
CN1245616A (en) 2000-02-23

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