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ES2087988T3 - Compensacion de frecuencia en un sistema de radio digital. - Google Patents

Compensacion de frecuencia en un sistema de radio digital.

Info

Publication number
ES2087988T3
ES2087988T3 ES91850256T ES91850256T ES2087988T3 ES 2087988 T3 ES2087988 T3 ES 2087988T3 ES 91850256 T ES91850256 T ES 91850256T ES 91850256 T ES91850256 T ES 91850256T ES 2087988 T3 ES2087988 T3 ES 2087988T3
Authority
ES
Spain
Prior art keywords
frequency
increase
mobile
base station
digital radio
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.)
Expired - Lifetime
Application number
ES91850256T
Other languages
English (en)
Inventor
Karl Bo Lindell
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.)
Ericsson Inc
Original Assignee
Ericsson Inc
Ericsson GE Mobile Communications Holding Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24418339&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2087988(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ericsson Inc, Ericsson GE Mobile Communications Holding Inc filed Critical Ericsson Inc
Application granted granted Critical
Publication of ES2087988T3 publication Critical patent/ES2087988T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/022—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature
    • H03L1/026—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only by indirect stabilisation, i.e. by generating an electrical correction signal which is a function of the temperature by using a memory for digitally storing correction values
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/0008—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general using a central processing unit, e.g. a microprocessor
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
    • H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Transmitters (AREA)

Abstract

UN SISTEMA DE TENSION DE COMPENSACION DE FRECUENCIA EN UNA ESTACION MOVIL DE UN SISTEMA DE UNA RADIO DIGITAL PEQUEÑA, SE UTILIZA PARA MODIFICAR LA FRECUENCIA DE SALIDA DEL OSCILADOR DE REFERENCIA CONTROLADO POR UN CRISTAL DE SISTEMA MOVIL. UN AUMENTO REPENTINO DE LA SEÑAL TRANSMITIDA POR UNA ESTACION BASE ES RECOBIDO POR LA MOVIL, Y UNA VEZ QUE SE DETERMINA QUE EL AUMENTO VINO DE LA ESTACION BASE CORRECTA, LA FRECUENCIA DEL AUMENTO SE COMPARA A LA DEL OSCILADOR DE REFERENCIA. LOS VALORES DE TENSION ALMACENADOS CORRESPONDIENTES A TEMPERATURA, ENVEJECIMIENTO Y VALORES DE COMPENSACION DE TENSION DE SINTONIZACION SE MODIFICAN PARA CONFORMAR LA FRECUENCIA DEL OSCILADOR DE FRECUENCIA DE LA ESTACION MOVIL A LA DEL AUMENTO RECIBIDO DESDE LA ESTACION BASE.
ES91850256T 1990-10-26 1991-10-18 Compensacion de frecuencia en un sistema de radio digital. Expired - Lifetime ES2087988T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/604,141 US5113416A (en) 1990-10-26 1990-10-26 Digital radio frequency compensation

Publications (1)

Publication Number Publication Date
ES2087988T3 true ES2087988T3 (es) 1996-08-01

Family

ID=24418339

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91850256T Expired - Lifetime ES2087988T3 (es) 1990-10-26 1991-10-18 Compensacion de frecuencia en un sistema de radio digital.

Country Status (8)

Country Link
US (1) US5113416A (es)
EP (1) EP0483090B1 (es)
AU (1) AU635693B2 (es)
CA (1) CA2054237C (es)
DE (1) DE69118311T2 (es)
ES (1) ES2087988T3 (es)
FI (1) FI105618B (es)
HK (1) HK132296A (es)

Families Citing this family (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0422225A (ja) * 1990-05-17 1992-01-27 Sony Corp 通信方式
GB2254971B (en) * 1991-03-07 1994-12-21 Ericsson Telefon Ab L M Mobile radio communications stations
US5287388A (en) * 1991-06-25 1994-02-15 Kabushiki Kaisha Toshiba Frequency offset removal method and apparatus
US5289504A (en) * 1991-06-28 1994-02-22 Wilson Timothy J Signal decoding method using both signal and channel state information
JP3381870B2 (ja) * 1992-11-30 2003-03-04 ヒューレット・パッカード・カンパニー 移動コンピュータ・ネットワーク・アダプタ
US5542095A (en) * 1993-08-24 1996-07-30 Pacific Communication Sciences Frequency Reference Compensation
US5742908A (en) * 1994-09-14 1998-04-21 Ericsson Inc. Frequency error correction in a satellite-mobile communications system
US5734966A (en) * 1995-01-20 1998-03-31 Diablo Research Corporation Wireless communication system for adapting to frequency drift
US5659884A (en) * 1995-02-10 1997-08-19 Matsushita Communication Industrial Corp. Of America System with automatic compensation for aging and temperature of a crystal oscillator
JP3186500B2 (ja) * 1995-03-29 2001-07-11 三菱電機株式会社 無線装置及び無線装置の調整方法
US5832043A (en) * 1995-04-03 1998-11-03 Motorola, Inc. System and method for maintaining continuous phase during up/down conversion of near-zero hertz intermediate frequencies
US5552749A (en) * 1995-06-26 1996-09-03 Motorola, Inc. Method for automatically compensating for accuracy degradation of a reference oscillator
EP0797304B1 (en) * 1996-03-20 2003-06-04 Philips Intellectual Property & Standards GmbH Improvements in or relating to radio receivers
US5740525A (en) * 1996-05-10 1998-04-14 Motorola, Inc. Method and apparatus for temperature compensation of a reference oscillator in a communication device
DE19634740A1 (de) * 1996-08-28 1998-03-05 Sel Alcatel Ag Funkfeststation mit abstimmbarem Oszillator und Verfahren zum Abstimmen des Oszillators
US5881374A (en) * 1997-01-31 1999-03-09 Telefonaktiebolaget L M Ericsson (Publ) Circuitry and method for detecting frequency deviation caused by aging of an oscillator
US5838741A (en) * 1997-02-10 1998-11-17 Motorola, Inc. Communication device and method for reducing effects of noise introduction by synchronizing data transfer to a received signal
EP0919084B1 (en) * 1997-06-19 2005-08-31 Koninklijke Philips Electronics N.V. Digital communication device
CN1237706C (zh) * 1997-07-11 2006-01-18 松下电器产业株式会社 函数发生电路、晶体振荡装置以及晶体振荡装置的调整方法
FR2793641B1 (fr) * 1999-05-10 2001-08-10 Cit Alcatel Telephone mobile muni d'un circuit de demodulation avec oscillateur local ameliore
US6603958B1 (en) * 2000-02-09 2003-08-05 Nortel Networks Limited Method and apparatus for a carrier frequency control in a wireless communication system
GB2360404B (en) 2000-03-17 2004-03-10 Ericsson Telefon Ab L M Electronic circuit
US6928275B1 (en) * 2000-05-08 2005-08-09 Qualcomm Incorporated Method and apparatus for compensating local oscillator frequency error
US6522871B1 (en) * 2000-05-09 2003-02-18 Qualcomm, Incorporated Method and apparatus for compensating local oscillator frequency error through environmental control
US6933788B2 (en) 2001-05-16 2005-08-23 Kyocera Wireless Corp. Reference oscillator
US7228118B2 (en) * 2002-06-27 2007-06-05 Agere Systems Inc. Method of calibrating PLL frequency synthesizers to precise frequencies with low tolerance crystals in their master reference oscillators
AU2003288128A1 (en) * 2002-11-21 2004-06-15 Sony Ericsson Mobile Communications Ab Oscillator frequency control
US7236745B2 (en) 2003-03-05 2007-06-26 Harris Stratex Networks Operating Corporation Transceiver power detection architecture
US7228114B2 (en) * 2003-05-21 2007-06-05 Harris Stratex Networks Operating Corporation Wide dynamic range power detection scheme
GB2423678B (en) * 2004-03-10 2007-02-07 Nec Technologies Apparatus for reducing frequency offset of an oscillator in a mobile communication device
GB0412260D0 (en) 2004-06-02 2004-07-07 Ubisense Ltd Tag frequency control
US7164285B1 (en) * 2005-08-12 2007-01-16 Stratex Networks, Inc. Directional power detection by quadrature sampling
KR101458493B1 (ko) * 2008-06-30 2014-11-10 삼성전자주식회사 주파수 대역 교환 기지국
US8704604B2 (en) * 2009-12-23 2014-04-22 Sand 9, Inc. Oscillators having arbitrary frequencies and related systems and methods
US8604888B2 (en) * 2009-12-23 2013-12-10 Sand 9, Inc. Oscillators having arbitrary frequencies and related systems and methods
US8736388B2 (en) * 2009-12-23 2014-05-27 Sand 9, Inc. Oscillators having arbitrary frequencies and related systems and methods
US8909641B2 (en) 2011-11-16 2014-12-09 Ptc Inc. Method for analyzing time series activity streams and devices thereof
US9576046B2 (en) 2011-11-16 2017-02-21 Ptc Inc. Methods for integrating semantic search, query, and analysis across heterogeneous data types and devices thereof
US9098312B2 (en) 2011-11-16 2015-08-04 Ptc Inc. Methods for dynamically generating an application interface for a modeled entity and devices thereof
EP2741442A1 (en) * 2012-12-07 2014-06-11 Dialog Semiconductor B.V. Automatic clock calibration of a remote unit using phase drift
EP2973047A4 (en) 2013-03-15 2016-11-02 Ptc Inc METHODS OF MANAGING APPLICATIONS USING SEMANTIC MODELING AND LABELING, AND DEVICES THEREOF
FR3005761B1 (fr) * 2013-05-15 2015-06-05 Sagemcom Broadband Sas Dispositif et procede de recalage d'une frequence d'oscillation d'un oscillateur vctcxo
US9647886B2 (en) 2014-02-17 2017-05-09 Haier Us Appliance Solutions, Inc. Update appliance communication settings to compensate for temperature fluctuations
US9961058B2 (en) 2014-03-21 2018-05-01 Ptc Inc. System and method of message routing via connection servers in a distributed computing environment
US10313410B2 (en) 2014-03-21 2019-06-04 Ptc Inc. Systems and methods using binary dynamic rest messages
US9467533B2 (en) 2014-03-21 2016-10-11 Ptc Inc. System and method for developing real-time web-service objects
US9560170B2 (en) 2014-03-21 2017-01-31 Ptc Inc. System and method of abstracting communication protocol using self-describing messages
US9350791B2 (en) 2014-03-21 2016-05-24 Ptc Inc. System and method of injecting states into message routing in a distributed computing environment
WO2015143416A1 (en) 2014-03-21 2015-09-24 Ptc Inc. Systems and methods for developing and using real-time data applications
US9762637B2 (en) 2014-03-21 2017-09-12 Ptc Inc. System and method of using binary dynamic rest messages
US10025942B2 (en) 2014-03-21 2018-07-17 Ptc Inc. System and method of establishing permission for multi-tenancy storage using organization matrices
US9462085B2 (en) 2014-03-21 2016-10-04 Ptc Inc. Chunk-based communication of binary dynamic rest messages
US9350812B2 (en) 2014-03-21 2016-05-24 Ptc Inc. System and method of message routing using name-based identifier in a distributed computing environment
US9548744B2 (en) 2014-08-18 2017-01-17 Qualcomm Incorporated Compensating for hysteretic characteristics of crystal oscillators
JP6564675B2 (ja) * 2015-10-19 2019-08-21 株式会社オーディオテクニカ ワイヤレス受信機
US11031938B2 (en) * 2019-10-25 2021-06-08 Cisco Technology, Inc. Radio frequency synchronization in low-power and lossy networks

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550006A (en) * 1968-01-17 1970-12-22 S & C Electric Co Temperature control for crystal oscillator and modulation circuit of a radio transmitter
US3662269A (en) * 1969-04-28 1972-05-09 Us Navy Remote drift rate compensator for frequency standards
IT7923479A0 (it) * 1979-06-12 1979-06-12 Sits Soc It Telecom Siemens Disposizione circuitale atta a compensare le variazioni di frequenza, in funzione delle variazioni di temperatura, di un oscillatore a quarzo.
FR2524228A1 (fr) * 1982-03-26 1983-09-30 Thomson Csf Systeme de telecommunications par satellite
US4817197A (en) * 1986-07-18 1989-03-28 Nippon Telegraph And Telephone Corporation Mobile communication apparatus
DE3629588A1 (de) * 1986-08-30 1988-03-03 Franz Dipl Ing Leitl Kristalloszillator-kompensationsschaltung
FR2621187A1 (fr) * 1987-09-29 1989-03-31 Cepe Oscillateur piezoelectrique compense en temperature
JPH07105756B2 (ja) * 1988-06-29 1995-11-13 松下電器産業株式会社 移動通信方法
WO1990016113A1 (en) * 1989-06-22 1990-12-27 Advanced Systems Research Pty Limited Self-calibrating temperature-compensated frequency source
FR2667742B1 (fr) * 1990-10-05 1993-07-09 Cte Electro Piezo Electricite Oscillateur a cristal compense en temperature.

Also Published As

Publication number Publication date
DE69118311D1 (de) 1996-05-02
AU8675391A (en) 1992-04-30
US5113416A (en) 1992-05-12
CA2054237A1 (en) 1992-04-27
FI105618B (fi) 2000-09-15
HK132296A (en) 1996-07-26
FI915045A0 (fi) 1991-10-25
EP0483090A1 (en) 1992-04-29
DE69118311T2 (de) 1996-11-07
AU635693B2 (en) 1993-03-25
CA2054237C (en) 2000-01-18
EP0483090B1 (en) 1996-03-27
FI915045A7 (fi) 1992-04-27

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