DE60229040D1 - Schätzung eines frequenzversatzes - Google Patents

Schätzung eines frequenzversatzes

Info

Publication number
DE60229040D1
DE60229040D1 DE60229040T DE60229040T DE60229040D1 DE 60229040 D1 DE60229040 D1 DE 60229040D1 DE 60229040 T DE60229040 T DE 60229040T DE 60229040 T DE60229040 T DE 60229040T DE 60229040 D1 DE60229040 D1 DE 60229040D1
Authority
DE
Germany
Prior art keywords
frequency
estimate
input signal
offset
estimation
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
DE60229040T
Other languages
English (en)
Inventor
Robert William Young
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.)
Qualcomm Technologies International Ltd
Original Assignee
Cambridge Silicon Radio Ltd
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 Cambridge Silicon Radio Ltd filed Critical Cambridge Silicon Radio Ltd
Application granted granted Critical
Publication of DE60229040D1 publication Critical patent/DE60229040D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/14—Demodulator circuits; Receiver circuits
    • H04L27/144—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements
    • H04L27/152—Demodulator circuits; Receiver circuits with demodulation using spectral properties of the received signal, e.g. by using frequency selective- or frequency sensitive elements using controlled oscillators, e.g. PLL arrangements
    • 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
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0071—Control of loops
    • H04L2027/0079—Switching between loops
    • H04L2027/0081—Switching between loops between loops of different bandwidths

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Circuits Of Receivers In General (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Amplifiers (AREA)
  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • General Induction Heating (AREA)
  • Networks Using Active Elements (AREA)
DE60229040T 2001-02-21 2002-02-15 Schätzung eines frequenzversatzes Expired - Lifetime DE60229040D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0104280.3A GB0104280D0 (en) 2001-02-21 2001-02-21 Estimating frequency offset
PCT/GB2002/000683 WO2002067520A2 (en) 2001-02-21 2002-02-15 Estimating frequency offset

Publications (1)

Publication Number Publication Date
DE60229040D1 true DE60229040D1 (de) 2008-11-06

Family

ID=9909214

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60229040T Expired - Lifetime DE60229040D1 (de) 2001-02-21 2002-02-15 Schätzung eines frequenzversatzes

Country Status (10)

Country Link
US (1) US7330523B2 (de)
EP (1) EP1364503B1 (de)
JP (1) JP3980486B2 (de)
AT (1) ATE409381T1 (de)
AU (1) AU2002231992A1 (de)
CA (1) CA2439070A1 (de)
DE (1) DE60229040D1 (de)
GB (1) GB0104280D0 (de)
TW (1) TWI237465B (de)
WO (1) WO2002067520A2 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7200188B2 (en) * 2003-01-27 2007-04-03 Analog Devices, Inc. Method and apparatus for frequency offset compensation
US7065163B2 (en) 2003-10-08 2006-06-20 Qualcomm, Incorporated Frequency error estimation using multiple integration lengths
US7016661B2 (en) * 2003-10-10 2006-03-21 Motorola, Inc. Multi-mode receiver for frequency error mitigation
GB2437574B (en) 2006-04-28 2008-06-25 Motorola Inc Receiver for use in wireless communications and method of operation of the receiver
JP2008160488A (ja) * 2006-12-22 2008-07-10 Kenwood Corp 無線通信機
JP2009005151A (ja) * 2007-06-22 2009-01-08 Seiko Epson Corp ベースバンド信号処理回路、受信システム及びベースバンド信号処理方法
US8103219B2 (en) * 2008-12-18 2012-01-24 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for frequency control in wireless communications
GB2504057A (en) * 2012-05-11 2014-01-22 Neul Ltd Frequency error estimation
KR101987284B1 (ko) 2012-12-13 2019-06-10 삼성전자주식회사 ＯＯＫ（Ｏｎ－Ｏｆｆ Ｋｅｙｉｎｇ）수신기에서 송신 심볼의 검출을 위한 임계값을 적응적으로 설정하는 장치 및 방법

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652541A (en) * 1993-11-23 1997-07-29 Motorola, Inc. Data demodulator employing decision feedback for reference parameter recovery and method used therin
JP3514529B2 (ja) * 1994-06-06 2004-03-31 沖電気工業株式会社 多値ｆｓｋ検波回路
GB9419630D0 (en) * 1994-09-29 1994-11-16 Philips Electronics Uk Ltd Receiver having an adjustable symbol slice demodulator
JPH10224420A (ja) * 1997-02-05 1998-08-21 Toshiba Corp デジタル復調装置のａｆｃ回路
JP3466422B2 (ja) * 1997-05-28 2003-11-10 株式会社ケンウッド 受信装置
US6130921A (en) * 1997-12-23 2000-10-10 Motorola, Inc. Frequency shift modulation automatic frequency correction circuit and method
WO2000033496A1 (en) * 1998-12-01 2000-06-08 Samsung Electronics Co., Ltd. Frequency synchronizing device for ofdm/cdma system
DE10213838B4 (de) * 2002-03-27 2008-10-02 Advanced Micro Devices, Inc., Sunnyvale Frequenzfehlerkorrektureinheit und -verfahren in einem drahtlosen Lan-System

Also Published As

Publication number Publication date
GB0104280D0 (en) 2001-11-21
US7330523B2 (en) 2008-02-12
ATE409381T1 (de) 2008-10-15
US20040114697A1 (en) 2004-06-17
EP1364503A2 (de) 2003-11-26
WO2002067520A2 (en) 2002-08-29
CA2439070A1 (en) 2002-08-29
AU2002231992A1 (en) 2002-09-04
JP3980486B2 (ja) 2007-09-26
WO2002067520A8 (en) 2008-10-09
EP1364503B1 (de) 2008-09-24
WO2002067520A3 (en) 2002-11-21
AU2002231992A8 (en) 2008-11-13
JP2004523962A (ja) 2004-08-05
TWI237465B (en) 2005-08-01

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