ATE505011T1 - Kompensation einer i/q-fehlanpassung in einem ofdm-empfänger bei vorliegen eines frequenzversatzes - Google Patents

Kompensation einer i/q-fehlanpassung in einem ofdm-empfänger bei vorliegen eines frequenzversatzes

Info

Publication number
ATE505011T1
ATE505011T1 AT03742530T AT03742530T ATE505011T1 AT E505011 T1 ATE505011 T1 AT E505011T1 AT 03742530 T AT03742530 T AT 03742530T AT 03742530 T AT03742530 T AT 03742530T AT E505011 T1 ATE505011 T1 AT E505011T1
Authority
AT
Austria
Prior art keywords
signals
analogue
mismatch
carrier
frequency
Prior art date
Application number
AT03742530T
Other languages
English (en)
Inventor
Champs Paul De
Francois Bourzeix
Sebastien Simoens
Original Assignee
Freescale Semiconductor 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
Application filed by Freescale Semiconductor Inc filed Critical Freescale Semiconductor Inc
Application granted granted Critical
Publication of ATE505011T1 publication Critical patent/ATE505011T1/de

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0016—Stabilisation of local oscillators

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Circuits Of Receivers In General (AREA)
  • Superheterodyne Receivers (AREA)
  • Noise Elimination (AREA)
AT03742530T 2002-02-21 2003-02-18 Kompensation einer i/q-fehlanpassung in einem ofdm-empfänger bei vorliegen eines frequenzversatzes ATE505011T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02290417A EP1339197A1 (de) 2002-02-21 2002-02-21 Kompensation des I/Q-Versatzes in einem OFDM-Empfänger bei Frequenzverschiebung
PCT/EP2003/001615 WO2003071758A1 (en) 2002-02-21 2003-02-18 I/q mismatch compensation in an ofdm receiver in presence of frequency offset

Publications (1)

Publication Number Publication Date
ATE505011T1 true ATE505011T1 (de) 2011-04-15

Family

ID=27635898

Family Applications (1)

Application Number Title Priority Date Filing Date
AT03742530T ATE505011T1 (de) 2002-02-21 2003-02-18 Kompensation einer i/q-fehlanpassung in einem ofdm-empfänger bei vorliegen eines frequenzversatzes

Country Status (7)

Country Link
US (1) US7443783B2 (de)
EP (2) EP1339197A1 (de)
AT (1) ATE505011T1 (de)
AU (1) AU2003227024A1 (de)
DE (1) DE60336636D1 (de)
TW (1) TW200400710A (de)
WO (1) WO2003071758A1 (de)

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US11152971B2 (en) 2004-02-02 2021-10-19 Charles Abraham Frequency modulated OFDM over various communication media
US7684507B2 (en) 2004-04-13 2010-03-23 Intel Corporation Method and apparatus to select coding mode
US7391317B2 (en) 2004-09-08 2008-06-24 Satius, Inc. Apparatus and method for transmitting digital data over various communication media
FR2878393B1 (fr) 2004-11-23 2007-01-12 Commissariat Energie Atomique Procede et dispositif de compensation de desequilibres d'un recepteur
KR100606130B1 (ko) * 2005-02-17 2006-07-28 삼성전자주식회사 제로 중간주파수 직교주파수 분할 다중 수신기에서의 최적동위상/직교위상 불균형 보상 장치 및 방법
TWI264193B (en) * 2005-03-04 2006-10-11 Mediatek Inc Apparatus and method for compensating IQ imbalance in OFDM system with carrier frequency offset
US7809076B1 (en) * 2005-03-11 2010-10-05 Adtran, Inc. Adaptive interference canceling system and method
CN101258687A (zh) 2005-07-21 2008-09-03 伟俄内克斯研究公司 具有直流偏移修正的叠加
KR100868463B1 (ko) 2005-08-30 2008-11-12 삼성전자주식회사 시분할 복신 시스템에서 아이/큐 부정합 보상 장치 및 방법
US7382297B1 (en) * 2005-12-08 2008-06-03 Marvell International Ltd. Transmitter I/Q mismatch calibration for low IF design systems
US7660339B2 (en) * 2005-12-09 2010-02-09 Electronics And Telecommunications Research Institute Apparatus and method for estimating and correcting frequency offset in MB-OFDM UWB system using time frequency hopping
JP4809097B2 (ja) * 2006-03-29 2011-11-02 ルネサスエレクトロニクス株式会社 受信回路及び受信方法
US7649963B2 (en) * 2006-03-29 2010-01-19 Posdata Co., Ltd. Apparatus for estimating and compensating carrier frequency offset and data receiving method in receiver of wireless communication system
US7944984B1 (en) * 2006-04-11 2011-05-17 Marvell International Ltd. I/Q calibration in the presence of phase offset
US7808557B2 (en) * 2006-06-23 2010-10-05 Rgb Systems, Inc. Method and apparatus for automatic reduction of noise in video transmitted over conductors
US7787057B2 (en) * 2006-08-22 2010-08-31 Rgb Systems, Inc. Method and apparatus for DC restoration using feedback
US7983373B2 (en) * 2007-02-07 2011-07-19 Vintomie Networks B.V., Llc Clock distribution for 10GBase-T analog front end
KR100819391B1 (ko) * 2007-02-08 2008-04-07 지씨티 세미컨덕터 인코포레이티드 Ｉｑ 불일치 측정 장치
KR100865538B1 (ko) * 2007-02-08 2008-10-27 지씨티 세미컨덕터 인코포레이티드 Ｉｑ 불일치 측정 장치
US8290083B2 (en) * 2007-03-09 2012-10-16 Qualcomm Incorporated Quadrature imbalance mitigation using unbiased training sequences
US8081695B2 (en) * 2007-03-09 2011-12-20 Qualcomm, Incorporated Channel estimation using frequency smoothing
US8428175B2 (en) * 2007-03-09 2013-04-23 Qualcomm Incorporated Quadrature modulation rotating training sequence
US8064550B2 (en) 2007-03-09 2011-11-22 Qualcomm, Incorporated Quadrature imbalance estimation using unbiased training sequences
US20090059782A1 (en) * 2007-08-29 2009-03-05 Rgb Systems, Inc. Method and apparatus for extending the transmission capability of twisted pair communication systems
TWI385913B (zh) * 2009-04-30 2013-02-11 Richwave Technology Corp 接收器與無線訊號接收方法
KR101278025B1 (ko) * 2009-10-15 2013-06-21 한국전자통신연구원 직교 주파수 분할 다중화 방식의 ｉ／ｑ 불균형 보상을 위한 수신 장치 및 그 수신 장치에서 수행되는 ｉ／ｑ 불균형 보상 방법
CN102082604B (zh) * 2009-12-01 2014-01-22 富士通株式会社 串扰系数估计装置和串扰系数估计方法
US8331506B2 (en) * 2010-03-12 2012-12-11 Telefonaktiebolaget L M Ericsson (Publ) Frequency-dependent IQ imbalance estimation
US8649464B2 (en) * 2010-08-10 2014-02-11 Sony Corporation Quadrature receiver and method of compensating for I/Q imbalance using a calibration signal
US9479203B2 (en) * 2011-04-14 2016-10-25 Mediatek Inc. Transceiver capable of IQ mismatch compensation on the fly and method thereof
US9209844B2 (en) * 2012-01-11 2015-12-08 Electronics And Telecommunications Research Institute Subsampling receiver using interstage off-chip RF band pass filter
US8971465B2 (en) 2012-03-30 2015-03-03 Qualcomm Incorporated Receiver-side estimation of and compensation for signal impairments
US9042487B2 (en) 2012-08-13 2015-05-26 Texas Instruments Incorporated Blind I/Q mismatch compensation with receiver non-linearity
US9143365B2 (en) 2013-01-30 2015-09-22 Qualcomm Incorporated Channel estimation using averaging and interpolation
US10483804B2 (en) 2016-06-07 2019-11-19 Mediatek Inc. Monotonic wireless power transfer
US10200070B2 (en) * 2017-01-13 2019-02-05 Cypress Semiconductor Corporation Spur cancellation system for modems

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DE19948383A1 (de) * 1999-10-07 2001-04-12 Rohde & Schwarz Verfahren zum empfangsseitigen Bestimmen der Nutzdatenkonstellation eines nach dem DVB-T-Standard modulierten Multiträger-Signals für die Berechnung der Restträgerleistung bzw. Verbesserung der Demodulation
US20020048333A1 (en) * 2000-05-25 2002-04-25 Nadeem Ahmed Joint detection in OFDM systems
US7075967B2 (en) * 2001-01-19 2006-07-11 Raze Technologies, Inc. Wireless communication system using block filtering and fast equalization-demodulation and method of operation
US7139320B1 (en) * 2001-10-11 2006-11-21 Texas Instruments Incorporated Method and apparatus for multicarrier channel estimation and synchronization using pilot sequences
US7154936B2 (en) * 2001-12-03 2006-12-26 Qualcomm, Incorporated Iterative detection and decoding for a MIMO-OFDM system

Also Published As

Publication number Publication date
EP1477005A1 (de) 2004-11-17
TW200400710A (en) 2004-01-01
WO2003071758A1 (en) 2003-08-28
EP1339197A1 (de) 2003-08-27
AU2003227024A1 (en) 2003-09-09
EP1477005B1 (de) 2011-04-06
US20050152463A1 (en) 2005-07-14
US7443783B2 (en) 2008-10-28
DE60336636D1 (de) 2011-05-19

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