ATE434324T1 - Verfahren zur schätzung und korrektur der trägerfrequenzablage und i/q ungleichheit - Google Patents

Verfahren zur schätzung und korrektur der trägerfrequenzablage und i/q ungleichheit

Info

Publication number
ATE434324T1
ATE434324T1 AT06125251T AT06125251T ATE434324T1 AT E434324 T1 ATE434324 T1 AT E434324T1 AT 06125251 T AT06125251 T AT 06125251T AT 06125251 T AT06125251 T AT 06125251T AT E434324 T1 ATE434324 T1 AT E434324T1
Authority
AT
Austria
Prior art keywords
cfo
training symbols
algorithm
estimating
carrier frequency
Prior art date
Application number
AT06125251T
Other languages
English (en)
Inventor
Rore Stefaan De
Original Assignee
Imec Inter Uni Micro Electr
Samsung Electronics Co 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 Imec Inter Uni Micro Electr, Samsung Electronics Co Ltd filed Critical Imec Inter Uni Micro Electr
Application granted granted Critical
Publication of ATE434324T1 publication Critical patent/ATE434324T1/de

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
    • H04L27/3845—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier
    • H04L27/3854—Demodulator circuits; Receiver circuits using non - coherent demodulation, i.e. not using a phase synchronous carrier using a non - coherent carrier, including systems with baseband correction for phase or frequency offset
    • H04L27/3863—Compensation for quadrature error in the received signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2668—Details of algorithms
    • H04L27/2681—Details of algorithms characterised by constraints
    • H04L27/2682—Precision
    • 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
    • H04L2027/0034—Correction of carrier offset using hypothesis testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
AT06125251T 2005-12-02 2006-12-01 Verfahren zur schätzung und korrektur der trägerfrequenzablage und i/q ungleichheit ATE434324T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05111627A EP1793548A1 (de) 2005-12-02 2005-12-02 Verfahren zur Schätzung und Korrektur der Trägerfrequenzablage und I/Q Ungleichheit

Publications (1)

Publication Number Publication Date
ATE434324T1 true ATE434324T1 (de) 2009-07-15

Family

ID=36201245

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06125251T ATE434324T1 (de) 2005-12-02 2006-12-01 Verfahren zur schätzung und korrektur der trägerfrequenzablage und i/q ungleichheit

Country Status (4)

Country Link
US (1) US7844004B2 (de)
EP (1) EP1793548A1 (de)
AT (1) ATE434324T1 (de)
DE (1) DE602006007290D1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8311152B1 (en) * 2004-02-27 2012-11-13 Marvell International Ltd. Adaptive OFDM receiver based on carrier frequency offset
US8045636B1 (en) * 2007-03-27 2011-10-25 Marvell International Ltd. Maximum-likelihood frame synchronization algorithms for OFDM systems
KR100881152B1 (ko) 2007-09-18 2009-02-02 한국정보통신대학교 산학협력단 Ｏｆｄｍ 시스템에서 주파수 오프셋 및 ｉ/ｑ불균형보상장치
US8259828B2 (en) * 2008-02-12 2012-09-04 Mediatek Inc. Sub-carrier alignment mechanism for OFDM multi-carrier systems
US20090310691A1 (en) * 2008-06-12 2009-12-17 Qualcomm Incorporated Methods and systems for carrier frequency offset estimation and correction ofdm/ofdma systems
US8891350B2 (en) * 2008-07-07 2014-11-18 Mediatek Inc. Method and apparatus of data transmission over guard sub-carriers in multi-carrier OFDM systems
US8964789B1 (en) 2008-11-11 2015-02-24 Marvell International Ltd. Method and system for data synchronization in communication systems using repetitive preamble patterns
TW201038028A (en) * 2009-04-10 2010-10-16 Ralink Technology Corp Carrier recovery device and related method
US8971465B2 (en) 2012-03-30 2015-03-03 Qualcomm Incorporated Receiver-side estimation of and compensation for signal impairments
US9143365B2 (en) 2013-01-30 2015-09-22 Qualcomm Incorporated Channel estimation using averaging and interpolation
EP3231236B1 (de) * 2014-12-09 2020-08-05 Myriota Pty Ltd Mehrträgerkommunikationssystem
GB2537800B (en) * 2014-12-22 2018-05-30 Imagination Tech Ltd IQ imbalance estimator
CN104618276B (zh) * 2014-12-23 2018-07-03 大唐半导体设计有限公司 一种调频接收机中的载波频偏估计方法及系统
US9698917B2 (en) * 2015-03-31 2017-07-04 Nokia Technologies Oy Methods and apparatus for mitigation of radio-frequency impairments in wireless network communication
US20170019226A1 (en) * 2015-07-14 2017-01-19 Qualcomm Incorporated Preamble Detection on a Communication Channel
US20170302479A1 (en) * 2016-03-11 2017-10-19 Sierra Wireless, Inc. Method and system for carrier frequency offset estimation in lte mtc device communication
US10355792B2 (en) 2017-01-19 2019-07-16 Samsung Electronics Co., Ltd. System and method for frequency estimation bias removal
KR102548249B1 (ko) * 2017-05-15 2023-06-27 삼성전자주식회사 무선 수신기에서 타이밍 동기화를 갖는 캐리어 오프셋을 추정하는 방법 및 장치
US10541852B2 (en) 2017-11-23 2020-01-21 Nxp Usa, Inc. Preamble detection mechanism for reception of asynchronous packets
CN115189777B (zh) * 2022-07-08 2024-11-08 聊城大学 一种用于离散谱nfdm系统中的频偏估计方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7158558B2 (en) 2001-04-26 2007-01-02 Interuniversitair Microelektronica Centrum (Imec) Wideband multiple access telecommunication method and apparatus
DE60332893D1 (de) 2002-04-25 2010-07-22 Imec CDMA Empfang-übertragungstechniken für Funksysteme mit Mehrfacheingängen und Mehrfachausgängen (MIMO)
EP1506654A1 (de) 2002-05-23 2005-02-16 Interuniversitair Microelektronica Centrum Vzw Verfahren und vorrichtung zur schätzung und kompensation der iq-unwucht
AU2002324091A1 (en) * 2002-09-16 2004-04-30 Nokia Corporation Direct conversion receiver and receiving method
US7466768B2 (en) * 2004-06-14 2008-12-16 Via Technologies, Inc. IQ imbalance compensation
EP1624636B1 (de) * 2004-08-05 2008-07-09 STMicroelectronics S.r.l. Verfahren und Vorrichtung zum Empfang eines OFDM-Signals und zur Kompensation des IQ-Ungleichgewichts und der Frequenzverschiebung
EP1722500A1 (de) 2005-05-13 2006-11-15 Interuniversitair Microelektronica Centrum ( Imec) Verfahren für drahtlose Kommunikation

Also Published As

Publication number Publication date
US20070140366A1 (en) 2007-06-21
DE602006007290D1 (de) 2009-07-30
EP1793548A1 (de) 2007-06-06
US7844004B2 (en) 2010-11-30

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