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GB2262688A - Method and apparatus for estimating the doppler frequency of a mobile station - Google Patents

Method and apparatus for estimating the doppler frequency of a mobile station

Info

Publication number
GB2262688A
GB2262688A GB9303107A GB9303107A GB2262688A GB 2262688 A GB2262688 A GB 2262688A GB 9303107 A GB9303107 A GB 9303107A GB 9303107 A GB9303107 A GB 9303107A GB 2262688 A GB2262688 A GB 2262688A
Authority
GB
United Kingdom
Prior art keywords
mobile station
doppler frequency
estimating
signal
base station
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.)
Withdrawn
Application number
GB9303107A
Other versions
GB9303107D0 (en
Inventor
Bengt Erik Lennart Dahlman
Olof Tomas Baeckstroem
Bengt Anders Sandell
Lars Peter Wahlstroem
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
Original Assignee
Telefonaktiebolaget LM Ericsson 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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of GB9303107D0 publication Critical patent/GB9303107D0/en
Publication of GB2262688A publication Critical patent/GB2262688A/en
Withdrawn legal-status Critical Current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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
    • H04W36/324—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data by mobility data, e.g. speed data
    • 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
    • H04W64/006—Locating users or terminals or network equipment for network management purposes, e.g. mobility management with additional information processing, e.g. for direction or speed determination

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A method and apparatus for approximating the doppler frequency of a mobile station (M1-M9) by examining the signal between the mobile station (M1-M9) and a base station (B1-B10). Several channel estimates (hj(n)) are calculated at different intervals (t1, t2) for the signal between the mobile station (M1-M9) and the base station (B1-B10). The difference (Vj(n)) between these channels estimates (hj(n)) is used to determine the approximate doppler frequency of the mobile station (M1-M9). A cellular mobile radio system can use the doppler frequency of the mobile station (M1-M9) to prioritize a handoff queue or to select an appropriate detecting algorithm for detecting data in a received signal (r(t)).
GB9303107A 1991-06-27 1993-03-16 Method and apparatus for estimating the doppler frequency of a mobile station Withdrawn GB2262688A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US72187891A 1991-06-27 1991-06-27

Publications (2)

Publication Number Publication Date
GB9303107D0 GB9303107D0 (en) 1993-04-21
GB2262688A true GB2262688A (en) 1993-06-23

Family

ID=24899687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9303107A Withdrawn GB2262688A (en) 1991-06-27 1993-03-16 Method and apparatus for estimating the doppler frequency of a mobile station

Country Status (6)

Country Link
JP (1) JPH06502291A (en)
AU (1) AU2232992A (en)
CA (1) CA2089090A1 (en)
GB (1) GB2262688A (en)
MX (1) MX9203067A (en)
WO (1) WO1993000777A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268858A (en) * 1992-07-17 1994-01-19 Nec Corp A method for reducing the number of handoff requests in a cellular mobile communications system
GB2285198A (en) * 1993-12-22 1995-06-28 Nokia Mobile Phones Ltd Multi-mode radio telephone
US5465389A (en) * 1994-02-25 1995-11-07 At&T Corp. Method of prioritizing handoff procedures in a cellular system
GB2370449A (en) * 2000-12-15 2002-06-26 Motorola Inc Cell selection using kinetic characteristics

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2878052B2 (en) * 1993-01-12 1999-04-05 日本電気通信システム株式会社 Electric field level measurement area control method
US5551058A (en) * 1994-10-31 1996-08-27 Motorola, Inc. Method and system for intelligent cell selection using location data in cellular systems
US5551059A (en) * 1994-10-31 1996-08-27 Motorola, Inc. Method and system for intelligent cell selection using doppler data in cellular systems
FI105370B (en) 1995-06-16 2000-07-31 Nokia Networks Oy Procedure for identifying a fast mobile terminal as well as a base station
FR2789492A1 (en) 1999-02-08 2000-08-11 Mitsubishi Electric Inf Tech METHOD OF ESTIMATING THE RELATIVE MOTION SPEED OF A TRANSMITTER AND A COMMUNICATION RECEIVER WITH EACH OTHER OF A TELECOMMUNICATIONS SYSTEM
US6850505B1 (en) * 1999-09-01 2005-02-01 Telefonaktiebolaget L M Ericsson (Publ) Method and apparatus for Doppler frequency estimation
CN1423751A (en) * 2000-10-23 2003-06-11 连宇通信有限公司 Method and device for measuring Doppler frequency shift
US8199696B2 (en) 2001-03-29 2012-06-12 Qualcomm Incorporated Method and apparatus for power control in a wireless communication system
PL3183929T3 (en) 2014-08-20 2019-09-30 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for coordinating resources
CN109219931B (en) 2016-06-07 2022-02-18 瑞典爱立信有限公司 Doppler shift or doppler spread as input for beam switching or node switching in wireless networks

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424704A2 (en) * 1989-10-26 1991-05-02 Vaisala Oy Method and device for measuring velocity of target by utilizing Doppler shift of electromagnetic radiation
GB2240696A (en) * 1990-01-31 1991-08-07 Nec Corp Method of controlling handoff in cellular mobile radio communications systems
WO1992001950A2 (en) * 1990-07-25 1992-02-06 British Telecommunications Public Limited Company Speed estimation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0424704A2 (en) * 1989-10-26 1991-05-02 Vaisala Oy Method and device for measuring velocity of target by utilizing Doppler shift of electromagnetic radiation
GB2240696A (en) * 1990-01-31 1991-08-07 Nec Corp Method of controlling handoff in cellular mobile radio communications systems
WO1992001950A2 (en) * 1990-07-25 1992-02-06 British Telecommunications Public Limited Company Speed estimation

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268858A (en) * 1992-07-17 1994-01-19 Nec Corp A method for reducing the number of handoff requests in a cellular mobile communications system
US5436956A (en) * 1992-07-17 1995-07-25 Nec Corporation Method and arrangement for reducing the number of handoff requests in a cellular mobile communications system
GB2268858B (en) * 1992-07-17 1996-07-03 Nec Corp A method and arrangement for reducing the number of handoff requests in a cellular mobile communications system
GB2285198A (en) * 1993-12-22 1995-06-28 Nokia Mobile Phones Ltd Multi-mode radio telephone
GB2285198B (en) * 1993-12-22 1998-03-04 Nokia Mobile Phones Ltd Multi-mode radio telephone
US6421538B1 (en) 1993-12-22 2002-07-16 Nokia Mobile Phones, Limited Multi-mode radio telephone with velocity sensing mode selection
US5465389A (en) * 1994-02-25 1995-11-07 At&T Corp. Method of prioritizing handoff procedures in a cellular system
GB2370449A (en) * 2000-12-15 2002-06-26 Motorola Inc Cell selection using kinetic characteristics

Also Published As

Publication number Publication date
GB9303107D0 (en) 1993-04-21
JPH06502291A (en) 1994-03-10
MX9203067A (en) 1992-12-01
AU2232992A (en) 1993-01-25
WO1993000777A1 (en) 1993-01-07
CA2089090A1 (en) 1992-12-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)