CA2087843A1 - Speed estimation - Google Patents

Speed estimation

Info

Publication number
CA2087843A1
CA2087843A1 CA2087843A CA2087843A CA2087843A1 CA 2087843 A1 CA2087843 A1 CA 2087843A1 CA 2087843 A CA2087843 A CA 2087843A CA 2087843 A CA2087843 A CA 2087843A CA 2087843 A1 CA2087843 A1 CA 2087843A1
Authority
CA
Canada
Prior art keywords
window
speed
speed estimation
duration
units
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
CA2087843A
Other languages
French (fr)
Other versions
CA2087843C (en
Inventor
Si Tak Stanley Chia
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.)
British Telecommunications PLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2087843A1 publication Critical patent/CA2087843A1/en
Application granted granted Critical
Publication of CA2087843C publication Critical patent/CA2087843C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01S11/06—Systems for determining distance or velocity not using reflection or reradiation using radio waves using intensity measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/04—Reselecting a cell layer in multi-layered cells

Abstract

A system and method of speed estimation for a cellular radio network comprises a number of speed estimation units (14-20). Each unit comprises an averaging window (24) of a different duration, a buffer store (26) and variationcalculator (28). The duration of each window is equivalent to the time taken by a mobile unit to traverse a distance of 20 wavelengths of the received signal at aparticular speed. An incoming signal is applied to the units. The duration of the window determines the significance of the fast fade components in the signal which is related to mobile unit speed. When the average of a window is substantially constant, the speed corresponding to that window can be assumed to be achieved or exceeded. Decision logic (30) is arranged to poll the outputs of the variation calculators to derive a speed estimation indication.
CA002087843A 1990-07-25 1991-07-25 Speed estimation Expired - Lifetime CA2087843C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB909016341A GB9016341D0 (en) 1990-07-25 1990-07-25 Speed estimation
GB9016341.1 1990-07-25
PCT/GB1991/001241 WO1992001950A2 (en) 1990-07-25 1991-07-25 Speed estimation

Publications (2)

Publication Number Publication Date
CA2087843A1 true CA2087843A1 (en) 1992-01-26
CA2087843C CA2087843C (en) 1999-04-27

Family

ID=10679644

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002087843A Expired - Lifetime CA2087843C (en) 1990-07-25 1991-07-25 Speed estimation

Country Status (13)

Country Link
US (1) US5396253A (en)
EP (1) EP0540596B1 (en)
JP (1) JP3169606B2 (en)
AT (1) ATE170294T1 (en)
AU (1) AU649056B2 (en)
CA (1) CA2087843C (en)
DE (1) DE69130065T2 (en)
DK (1) DK0540596T3 (en)
ES (1) ES2121571T3 (en)
GB (2) GB9016341D0 (en)
HK (1) HK133496A (en)
SG (1) SG47591A1 (en)
WO (1) WO1992001950A2 (en)

Families Citing this family (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993000777A1 (en) * 1991-06-27 1993-01-07 Telefonaktiebolaget Lm Ericsson Method and apparatus for estimating the doppler frequency of a mobile station
US5734930A (en) * 1992-09-04 1998-03-31 Canon Kabushiki Kaisha Optical apparatus having a visual axis detector
JP3212607B2 (en) * 1993-02-26 2001-09-25 富士通株式会社 Moving speed detecting device in mobile communication system
EP0667537A3 (en) * 1993-10-04 1996-07-17 Texas Instruments Deutschland Positioning with RF-ID transponders.
GB2284725B (en) * 1993-11-27 1997-01-29 Motorola Ltd Method for determining handover in a multicellular environment
JP3378360B2 (en) * 1994-06-30 2003-02-17 松下電器産業株式会社 Speed sensor coefficient calculation device
SE513974C2 (en) * 1994-08-19 2000-12-04 Telia Ab Speed determination of mobile devices in telecommunication systems
US5590177A (en) * 1994-09-30 1996-12-31 Motorola, Inc. Method for preventing a dropped call during a handoff in a radiotelephone system
US5563603A (en) * 1995-02-10 1996-10-08 Aker; John L. Police traffic radar using digital data transfer between antenna and counting unit
DE19505780A1 (en) * 1995-02-20 1996-08-29 Philips Patentverwaltung Mobile radio system with improved "handover"
FI105370B (en) 1995-06-16 2000-07-31 Nokia Networks Oy Procedure for identifying a fast mobile terminal as well as a base station
FR2735639B1 (en) * 1995-06-16 1997-08-14 Moreau Christophe METHOD FOR CONTROLLING AUTOMATIC INTERCELL HANDOVER IN A MULTI-CELL RADIO COMMUNICATION NETWORK, AND RELATED SPEED ESTIMATION METHODS
US5787348A (en) * 1995-12-06 1998-07-28 Motorola, Inc. Method of measuring speed of a mobile unit and a receiver for use in a wireless communication system
FI103171B (en) * 1996-02-20 1999-04-30 Nokia Telecommunications Oy Method and arrangement for deciding on cell exchange in a mobile communication system
FI102345B1 (en) * 1996-02-20 1998-11-13 Nokia Telecommunications Oy Method for determining the speed of a terminal and a receiver
FI103007B1 (en) 1996-04-16 1999-03-31 Nokia Telecommunications Oy Handover in a multilevel cellular cellular communication system
US6067460A (en) * 1996-05-23 2000-05-23 Nokia Mobile Phones Limited Mobile station having enhanced standby mode
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
US6061549A (en) * 1997-02-20 2000-05-09 Telefonaktiebolaget L M Ericsson Support of multiple modulation levels for a cellular traffic channel
US5991286A (en) * 1997-02-20 1999-11-23 Telefonaktiebolaget L M Ericsson (Publ) Support of multiple modulation levels for a cellular packet control channel
FI105005B (en) * 1997-05-13 2000-05-15 Nokia Networks Oy Method of estimating the speed of a terminal device, method of cell selection and radio system
US6011780A (en) * 1997-05-23 2000-01-04 Stevens Institute Of Technology Transparant non-disruptable ATM network
FI105139B (en) 1997-06-05 2000-06-15 Nokia Networks Oy Call setup wizard retry
US6128327A (en) * 1998-01-29 2000-10-03 Ericsson Inc. Frequency hopping
US6385460B1 (en) 1998-05-26 2002-05-07 Conexant Systems, Inc. Power management system for a mobile unit by reduced neighbor cell scanning
CN1084804C (en) * 1998-06-10 2002-05-15 张林岗 Formation method for metallic handicraft
GB2338377A (en) 1998-06-12 1999-12-15 Fujitsu Ltd Hand-off in cellular mobile communications networks
JP2000091978A (en) * 1998-09-10 2000-03-31 Nec Corp Digital cordless telephone set and its high speed transfer recognition method
US6400310B1 (en) 1998-10-22 2002-06-04 Washington University Method and apparatus for a tunable high-resolution spectral estimator
US6370357B1 (en) * 1998-12-21 2002-04-09 Nortel Networks Limited Mobile speed estimation for digital cellular radio systems
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
MXPA02000661A (en) 1999-07-20 2002-08-30 Qualcomm Inc Method for determining a change in a communication signal and using this information to improve sps signal reception and processing.
US6876991B1 (en) 1999-11-08 2005-04-05 Collaborative Decision Platforms, Llc. System, method and computer program product for a collaborative decision platform
CN1246991C (en) * 1999-12-09 2006-03-22 诺基亚有限公司 Mobile equipment based filting for packet radio service applications
US7139743B2 (en) * 2000-04-07 2006-11-21 Washington University Associative database scanning and information retrieval using FPGA devices
US8095508B2 (en) * 2000-04-07 2012-01-10 Washington University Intelligent data storage and processing using FPGA devices
US6711558B1 (en) * 2000-04-07 2004-03-23 Washington University Associative database scanning and information retrieval
WO2005048134A2 (en) 2002-05-21 2005-05-26 Washington University Intelligent data storage and processing using fpga devices
US6744379B1 (en) 2001-08-16 2004-06-01 Applied Concepts, Inc. System and method for displaying radar data
US7716330B2 (en) 2001-10-19 2010-05-11 Global Velocity, Inc. System and method for controlling transmission of data packets over an information network
US20090161568A1 (en) * 2007-12-21 2009-06-25 Charles Kastner TCP data reassembly
US7218934B2 (en) * 2002-02-14 2007-05-15 Nokia Corporation Mobile station speed estimation
US7093023B2 (en) * 2002-05-21 2006-08-15 Washington University Methods, systems, and devices using reprogrammable hardware for high-speed processing of streaming data to find a redefinable pattern and respond thereto
GB2390265A (en) * 2002-06-26 2003-12-31 Motorola Inc Mechanism for determining when to hand over from a terrestrial to a non-terrestrial communication network
US7711844B2 (en) * 2002-08-15 2010-05-04 Washington University Of St. Louis TCP-splitter: reliable packet monitoring methods and apparatus for high speed networks
US7302266B1 (en) * 2002-10-17 2007-11-27 Sprint Spectrum L.P. Method and system for frequency usage
TW579636B (en) * 2002-10-25 2004-03-11 Benq Corp Method and system for estimating movement speed of mobile phone
US10572824B2 (en) 2003-05-23 2020-02-25 Ip Reservoir, Llc System and method for low latency multi-functional pipeline with correlation logic and selectively activated/deactivated pipelined data processing engines
US7729406B2 (en) 2003-09-10 2010-06-01 Ericsson Technology Licensing Ab Detection of process state change
WO2005069851A2 (en) * 2004-01-15 2005-08-04 Robert Akins Work capacities testing apparatus and method
US8291762B2 (en) 2004-01-15 2012-10-23 Robert Akins Work capacities testing apparatus and method
US7602785B2 (en) 2004-02-09 2009-10-13 Washington University Method and system for performing longest prefix matching for network address lookup using bloom filters
US20050232206A1 (en) * 2004-04-15 2005-10-20 Hong Kong Applied Science And Technology Research Institute Co., Ltd. Intelligent wireless switch (IWS) and intelligent radio coverage (IRC) for mobile applications
CA2577891A1 (en) * 2004-08-24 2006-03-02 Washington University Methods and systems for content detection in a reconfigurable hardware
US7702629B2 (en) * 2005-12-02 2010-04-20 Exegy Incorporated Method and device for high performance regular expression pattern matching
US7954114B2 (en) 2006-01-26 2011-05-31 Exegy Incorporated Firmware socket module for FPGA-based pipeline processing
US7636703B2 (en) * 2006-05-02 2009-12-22 Exegy Incorporated Method and apparatus for approximate pattern matching
US7921046B2 (en) 2006-06-19 2011-04-05 Exegy Incorporated High speed processing of financial information using FPGA devices
US7840482B2 (en) * 2006-06-19 2010-11-23 Exegy Incorporated Method and system for high speed options pricing
US8326819B2 (en) * 2006-11-13 2012-12-04 Exegy Incorporated Method and system for high performance data metatagging and data indexing using coprocessors
US7660793B2 (en) 2006-11-13 2010-02-09 Exegy Incorporated Method and system for high performance integration, processing and searching of structured and unstructured data using coprocessors
TWI345925B (en) * 2006-12-19 2011-07-21 Inst Information Industry Mobile communication apparatus, method, application program, and computer readable medium thereof for early measuring signal of a base station
JP5109778B2 (en) 2008-04-22 2012-12-26 富士通株式会社 Wireless communication method and terminal device
US8374986B2 (en) 2008-05-15 2013-02-12 Exegy Incorporated Method and system for accelerated stream processing
US20120095893A1 (en) 2008-12-15 2012-04-19 Exegy Incorporated Method and apparatus for high-speed processing of financial market depth data
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
US9107131B2 (en) * 2009-08-18 2015-08-11 Tti Inventions D Llc Pre registration/pre authentication in wireless networks
US10037568B2 (en) 2010-12-09 2018-07-31 Ip Reservoir, Llc Method and apparatus for managing orders in financial markets
US8812050B1 (en) * 2011-05-05 2014-08-19 Time Warner Cable Enterprises Llc Handoff management in a multi-layer wireless network
US10121196B2 (en) 2012-03-27 2018-11-06 Ip Reservoir, Llc Offload processing of data packets containing financial market data
US9990393B2 (en) 2012-03-27 2018-06-05 Ip Reservoir, Llc Intelligent feed switch
US11436672B2 (en) 2012-03-27 2022-09-06 Exegy Incorporated Intelligent switch for processing financial market data
US10650452B2 (en) 2012-03-27 2020-05-12 Ip Reservoir, Llc Offload processing of data packets
JP6088048B2 (en) 2012-06-12 2017-03-01 モナシュ ユニバーシティ Breathable electrode structure and method and system for water splitting
WO2014066416A2 (en) 2012-10-23 2014-05-01 Ip Reservoir, Llc Method and apparatus for accelerated format translation of data in a delimited data format
US9633093B2 (en) 2012-10-23 2017-04-25 Ip Reservoir, Llc Method and apparatus for accelerated format translation of data in a delimited data format
US10102260B2 (en) 2012-10-23 2018-10-16 Ip Reservoir, Llc Method and apparatus for accelerated data translation using record layout detection
EP2793517B1 (en) * 2013-04-16 2016-09-07 Alcatel Lucent Method and system for user speed estimation in wireless networks
US10355283B2 (en) 2013-07-31 2019-07-16 Aquahydrez Pty Ltd Electro-synthetic or electro-energy cell with gas diffusion electrode(s)
GB2541577A (en) 2014-04-23 2017-02-22 Ip Reservoir Llc Method and apparatus for accelerated data translation
US10942943B2 (en) 2015-10-29 2021-03-09 Ip Reservoir, Llc Dynamic field data translation to support high performance stream data processing
WO2018119035A1 (en) 2016-12-22 2018-06-28 Ip Reservoir, Llc Pipelines for hardware-accelerated machine learning
JP6926775B2 (en) * 2017-07-24 2021-08-25 日本電気株式会社 Moving target detection system and moving target detection method
EP3918112A4 (en) 2019-02-01 2022-10-26 Aquahydrex, Inc. Electrochemical system with confined electrolyte

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2083945A (en) * 1931-05-26 1937-06-15 George L De Mott Apparatus for indicating veloctty
US3906503A (en) * 1956-08-27 1975-09-16 Rockwell International Corp Intensity comparing system for determining fraction of travel time or distance to a radiating source
US3157876A (en) * 1961-02-16 1964-11-17 Gen Electric Velocity measuring system
US3605095A (en) * 1969-10-01 1971-09-14 Robert A Higgins Device for measuring relative velocities
US3653049A (en) * 1969-12-05 1972-03-28 Marquart Ind Products Co Collision warning system
DE2849282A1 (en) * 1978-11-14 1980-05-29 Licentia Gmbh Measuring distance between mobile radio receiver and transmitter - using relation between received signal intensity and separation distance
DE3215479A1 (en) * 1982-04-24 1988-08-18 Krupp Atlas Elektronik Gmbh Method for determining time intervals
US4502052A (en) * 1983-01-24 1985-02-26 Avco Corporation Passive data acquisition and analysis system for microwave
JPH03104329A (en) * 1989-09-19 1991-05-01 Nippon Telegr & Teleph Corp <Ntt> Mobile communication channel assignment control system
FI83999C (en) * 1989-10-26 1991-09-25 Vaisala Oy FOERFARANDE OCH ANORDNING FOER MAETNING AV HASTIGHETEN AV ETT OBJEKT GENOM ATT UTNYTTJA DOPPLER -FOERSKJUTNINGEN AV ELEKTROMAGNETISK STRAOLNING.

Also Published As

Publication number Publication date
CA2087843C (en) 1999-04-27
AU8223891A (en) 1992-02-18
GB2263037A (en) 1993-07-07
WO1992001950A2 (en) 1992-02-06
WO1992001950A3 (en) 1992-04-30
ATE170294T1 (en) 1998-09-15
HK133496A (en) 1996-08-02
AU649056B2 (en) 1994-05-12
GB2263037B (en) 1994-09-21
DE69130065D1 (en) 1998-10-01
EP0540596A1 (en) 1993-05-12
GB9302377D0 (en) 1993-04-21
JP3169606B2 (en) 2001-05-28
DK0540596T3 (en) 1999-05-25
JPH06501307A (en) 1994-02-10
SG47591A1 (en) 1998-04-17
ES2121571T3 (en) 1998-12-01
US5396253A (en) 1995-03-07
DE69130065T2 (en) 1999-02-25
EP0540596B1 (en) 1998-08-26
GB9016341D0 (en) 1990-09-12

Similar Documents

Publication Publication Date Title
CA2087843A1 (en) Speed estimation
TW351032B (en) Method for estimating speed of a mobile station in a cellular communications system
CA2041283C (en) Antenna selection diversity reception system
CA2076107A1 (en) Frame/slot synchronization for u.s. digital cellular tdma radio telephone system
WO1995031879A3 (en) Control of handover and transmission power control of mobile station in a mobile telecommunications system
CA2054591A1 (en) Wireless telecommunication systems
CA2115657A1 (en) Dual System Cellular Cordless Radiotelephone Apparatus with Sub-Data Channel Timing Monitor
CA2127613A1 (en) Mobile-Synchronized Handoff in a Wireless Communications System
NO20005900L (en) High speed data transmission via terminals for metropolitan networks
EP0715481A4 (en) Communication system, base station, mobile station, and radio communication system
ES2184740T3 (en) METHOD AND APPLIANCE TO GROUP THE RECEPTION OF DATA PACKAGES.
CA2275600A1 (en) Apparatus and method in a communication network
CA2010288A1 (en) Bit rate reservation in an asynchronous packet network
GB2252221B (en) Improvements in or relating to equalisers for digital radio communication systems
ZA744859B (en) Method for frequency-recognition in selective signal receivers for use in telecommunication, particularly telephone systems
CA2102504A1 (en) A Method for Eliminating Acoustic Echo in a Communication Device
EP0372458A3 (en) Synchronous multiplex transmission apparatus
AU2756897A (en) Process and device for the increase of subscriber capacity in a cellular mobile radio network
SE9703101D0 (en) Random access control for a CDMA network
CA2072591A1 (en) Multiple frequency scanning in a selective call communication system
CA2320540A1 (en) Methods and apparatus for adaptive mimic rejection
SU1256225A1 (en) Device for synchronizing binary signals in reception equipment of communication system
SU1732499A1 (en) Digital receiver of delta-modulated signals
JPS6437138A (en) Discriminating method for channel frequency data transmission system in radio data system
GRAY Global telecommunications networks(costs and channel capacity)[Final Report M. S. Thesis]

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry
MKEX Expiry

Effective date: 20110725