BR9917206A - Sistema para gerar um fator de correção doppler e método para compensar deslocamento doppler em um sinal transmitido entre uma estação móvel e uma estação base em um sistema de comunicação móvel - Google Patents

Sistema para gerar um fator de correção doppler e método para compensar deslocamento doppler em um sinal transmitido entre uma estação móvel e uma estação base em um sistema de comunicação móvel

Info

Publication number
BR9917206A
BR9917206A BR9917206-2A BR9917206A BR9917206A BR 9917206 A BR9917206 A BR 9917206A BR 9917206 A BR9917206 A BR 9917206A BR 9917206 A BR9917206 A BR 9917206A
Authority
BR
Brazil
Prior art keywords
doppler
correction factor
mobile
compensate
generate
Prior art date
Application number
BR9917206-2A
Other languages
English (en)
Inventor
Olli Piirainen
Original Assignee
Nokia Networks Oy
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 Nokia Networks Oy filed Critical Nokia Networks Oy
Publication of BR9917206A publication Critical patent/BR9917206A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3809—Amplitude regulation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/01—Reducing phase shift
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0038—Correction of carrier offset using an equaliser
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0083—Signalling arrangements
    • H04L2027/0089—In-band signals
    • H04L2027/0093—Intermittant signals
    • H04L2027/0095—Intermittant signals in a preamble or similar structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Noise Elimination (AREA)

Abstract

"SISTEMA PARA GERAR UM FATOR DE CORREçãO DOPPLER E MéTODO PARA COMPENSAR DESLOCAMENTO DOPPLER EM UM SINAL TRANSMITIDO ENTRE UMA ESTAçãO MóVEL E UMA ESTAçãO BASE EM UM SISTEMA DE COMUNICAçãO MóVEL". São descritos sistema e um método para estimar compensação de deslocamento Doppler em um sistema de móvel. Um circuito de determinação de resposta de impulso de canal determina uma resposta de impulso de canal para o canal sobre o qual o sinal é recebido. Um vetor de referência é gerado usando uma série de símbolos conhecidos e a resposta de impulso de canal e um vetor de erro é então gerado por comparação do vetor de referência com amostras recebidas do sinal. Além disso, a variação de ruído do sinal entrante pode ser determinada. Em seguida, é estimado um fator de correção Doppler que tem uma parte real representando correção de amplitude e uma parte imaginária representando correção de fase.
BR9917206-2A 1999-03-10 1999-03-10 Sistema para gerar um fator de correção doppler e método para compensar deslocamento doppler em um sinal transmitido entre uma estação móvel e uma estação base em um sistema de comunicação móvel BR9917206A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1999/001618 WO2000054431A1 (en) 1999-03-10 1999-03-10 Estimation of doppler shift compensation in a mobile communication system

Publications (1)

Publication Number Publication Date
BR9917206A true BR9917206A (pt) 2002-09-17

Family

ID=8167240

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9917206-2A BR9917206A (pt) 1999-03-10 1999-03-10 Sistema para gerar um fator de correção doppler e método para compensar deslocamento doppler em um sinal transmitido entre uma estação móvel e uma estação base em um sistema de comunicação móvel

Country Status (9)

Country Link
US (1) US7012973B1 (pt)
EP (1) EP1159790B1 (pt)
JP (1) JP4542712B2 (pt)
CN (1) CN1124701C (pt)
AU (1) AU2729499A (pt)
BR (1) BR9917206A (pt)
DE (1) DE69903585T2 (pt)
ES (1) ES2186333T3 (pt)
WO (1) WO2000054431A1 (pt)

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DE10043743A1 (de) 2000-09-05 2002-03-14 Infineon Technologies Ag Automatische Frequenzkorrektur für Mobilfunkempfänger
FR2820911B1 (fr) * 2001-02-13 2003-05-30 Sagem Procede d'egalisation de symboles de donnees recus par un modem et modem pour la mise en oeuvre du procede
US6909757B2 (en) 2001-05-14 2005-06-21 Ericsson Inc. Methods, transmitters, and computer program products for transmitting a signal by adjusting a delay between an amplitude component of the signal and a phase component of the signal based on the transmission power
GB0124952D0 (en) * 2001-10-17 2001-12-05 Nokia Corp A receiver and a receiving method
GB0126130D0 (en) * 2001-10-31 2002-01-02 Nokia Corp Frequency error estimation
FR2832880B1 (fr) * 2001-11-23 2004-04-09 Thales Sa Procede et dispositif d'egalisation par blocs avec adaptation au canal de transmission
FI20021288A0 (fi) 2002-06-28 2002-06-28 Nokia Corp Tiedonsiirtomenetelmä, tiedonsiirtojärjestely ja tukiasema
US20040095909A1 (en) * 2002-11-19 2004-05-20 Shousheng He Method of and apparatus for amplitude tracking and automatic frequency correction of a time-division multiple-access channel
DE10341107B3 (de) * 2003-09-05 2005-05-19 Infineon Technologies Ag Verfahren und Empfangseinheit zur Kompensation eines Frequenzversatzes und/oder einer zeitlichen Änderung der Phase eines Übertragungskanals durch empfängerseitiges Auswerten von Randsymbolen eines empfangenen Datenbursts
KR100602642B1 (ko) * 2004-01-30 2006-07-19 삼성전자주식회사 무선 기지국 시스템에서의 위상 에러 보정장치 및 그 방법
EP1574875A1 (en) * 2004-03-09 2005-09-14 Sony Ericsson Mobile Communications AB GPS receiver carried on fast moving vehicles
UA88328C2 (ru) * 2004-09-17 2009-10-12 Квелкомм Инкорпорейтед Оценка дисперсии шума в беспроводной связи для объединения разнесения и масштабирования в соответствии с логарифмической вероятностью
US7672383B2 (en) * 2004-09-17 2010-03-02 Qualcomm Incorporated Noise variance estimation in wireless communications for diversity combining and log-likelihood scaling
CN101378276B (zh) * 2008-09-23 2014-06-18 林志华 高速移动体多普勒频差校正方法
US8526358B2 (en) * 2010-01-20 2013-09-03 Harris Corporation System and method of doppler and local oscillator compensation in a TDMA system
WO2012044326A1 (en) 2010-10-01 2012-04-05 Empire Technology Development Llc Model based doppler compensation using traffic data
CN102263714A (zh) * 2011-07-25 2011-11-30 南京信息工程大学 混沌优化的正交小波多模盲均衡方法
EP2789111A4 (en) 2011-12-06 2015-04-08 Ericsson Telefon Ab L M APPARATUS AND METHOD FOR COMPENSATING THE DOPPLER SHIFT
CN103269259B (zh) * 2013-05-23 2016-09-21 小米科技有限责任公司 一种信号解调方法及装置
US10670693B2 (en) * 2017-12-29 2020-06-02 Sonitor Technologies As Position determination system having a deconvolution decoder
WO2020200396A1 (en) * 2019-03-29 2020-10-08 Nokia Technologies Oy Apparatus for doppler shift compensation, corresponding method and computer program
CN111654338B (zh) * 2020-05-07 2022-07-19 Oppo广东移动通信有限公司 一种多普勒参数估计方法、设备及存储介质

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4132200A1 (de) * 1991-09-27 1993-04-01 Aeg Mobile Communication Zeitmultiplex-verfahren zur bestimmung der mittleren phasenaenderung eines empfangssignals
US5488635A (en) * 1993-10-29 1996-01-30 General Electric Company Low complexity adaptive equalizer radio receiver employing reduced complexity branch metric calculation
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
US5867538A (en) * 1995-08-15 1999-02-02 Hughes Electronics Corporation Computational simplified detection of digitally modulated radio signals providing a detection of probability for each symbol
AU724387B2 (en) 1997-02-04 2000-09-21 Nokia Telecommunications Oy Compensation of doppler shift in a mobile communication system

Also Published As

Publication number Publication date
CN1124701C (zh) 2003-10-15
ES2186333T3 (es) 2003-05-01
EP1159790B1 (en) 2002-10-16
CN1348641A (zh) 2002-05-08
DE69903585T2 (de) 2003-06-12
US7012973B1 (en) 2006-03-14
JP4542712B2 (ja) 2010-09-15
DE69903585D1 (de) 2002-11-21
EP1159790A1 (en) 2001-12-05
JP2002539669A (ja) 2002-11-19
WO2000054431A1 (en) 2000-09-14
AU2729499A (en) 2000-09-28

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Legal Events

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B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 13A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2159 DE 22/05/2012.