DK1177602T3 - Fremgangsmåde til korrigering af DC-offsets i en modtager - Google Patents

Fremgangsmåde til korrigering af DC-offsets i en modtager

Info

Publication number
DK1177602T3
DK1177602T3 DK00928949T DK00928949T DK1177602T3 DK 1177602 T3 DK1177602 T3 DK 1177602T3 DK 00928949 T DK00928949 T DK 00928949T DK 00928949 T DK00928949 T DK 00928949T DK 1177602 T3 DK1177602 T3 DK 1177602T3
Authority
DK
Denmark
Prior art keywords
offsets
correcting
receiver
Prior art date
Application number
DK00928949T
Other languages
Danish (da)
English (en)
Inventor
Zoran Zvonar
Original Assignee
Analog Devices 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 Analog Devices Inc filed Critical Analog Devices Inc
Application granted granted Critical
Publication of DK1177602T3 publication Critical patent/DK1177602T3/da

Links

Classifications

    • 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
    • H04L25/06—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/061—Dc level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection providing hard decisions only; arrangements for tracking or suppressing unwanted low frequency components, e.g. removal of dc offset
    • 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
    • H04L25/0212—Channel estimation of impulse response
    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from 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
    • H04L25/0202—Channel estimation
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/0242—Channel estimation channel estimation algorithms using matrix methods
    • 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
    • H04L25/024—Channel estimation channel estimation algorithms
    • H04L25/025—Channel estimation channel estimation algorithms using least-mean-square [LMS] method

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Dc Digital Transmission (AREA)
  • Analogue/Digital Conversion (AREA)
  • Noise Elimination (AREA)
DK00928949T 1999-05-12 2000-05-11 Fremgangsmåde til korrigering af DC-offsets i en modtager DK1177602T3 (da)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/310,612 US6504884B1 (en) 1999-05-12 1999-05-12 Method for correcting DC offsets in a receiver
PCT/US2000/012805 WO2000069023A2 (en) 1999-05-12 2000-05-11 Method for correcting dc offsets in a receiver
EP00928949A EP1177602B1 (en) 1999-05-12 2000-05-11 Method for correcting dc offsets in a receiver

Publications (1)

Publication Number Publication Date
DK1177602T3 true DK1177602T3 (da) 2004-12-06

Family

ID=23203326

Family Applications (1)

Application Number Title Priority Date Filing Date
DK00928949T DK1177602T3 (da) 1999-05-12 2000-05-11 Fremgangsmåde til korrigering af DC-offsets i en modtager

Country Status (6)

Country Link
US (2) US6504884B1 (ja)
EP (1) EP1177602B1 (ja)
JP (1) JP4540857B2 (ja)
DE (1) DE60012504T2 (ja)
DK (1) DK1177602T3 (ja)
WO (1) WO2000069023A2 (ja)

Families Citing this family (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000077946A1 (en) * 1999-06-11 2000-12-21 Nokia Corporation Method and apparatus for performing interference estimation
US6449320B1 (en) * 1999-07-02 2002-09-10 Telefonaktiebolaget Lm Ericsson (Publ) Equalization with DC-offset compensation
US7561643B1 (en) * 1999-10-27 2009-07-14 Nokia Corporation DC offset correction in mobile communication system
GB2355900B (en) * 1999-10-29 2004-03-17 Ericsson Telefon Ab L M Radio receiver
JP3351412B2 (ja) * 2000-01-17 2002-11-25 日本電気株式会社 Ｄｃオフセット除去方式及びｄｃオフセット除去回路を備えた受信回路
EP3024283A1 (en) * 2000-04-03 2016-05-25 Nokia Technologies Oy Determining which plurality of cells a mobile station is associated with in idle state
US6661858B1 (en) * 2000-09-12 2003-12-09 Beaudin Andre DC restoration circuit for a radio receiver
US6801581B1 (en) * 2000-09-13 2004-10-05 Intel Corporation DC offset cancellation
US7068987B2 (en) 2000-10-02 2006-06-27 Conexant, Inc. Packet acquisition and channel tracking for a wireless communication device configured in a zero intermediate frequency architecture
US6748200B1 (en) 2000-10-02 2004-06-08 Mark A. Webster Automatic gain control system and method for a ZIF architecture
US6901121B1 (en) * 2001-02-20 2005-05-31 Comsys Communication & Signal Processing Ltd. Compensation of DC offset impairment in a communications receiver
US7133442B2 (en) * 2001-03-29 2006-11-07 Hewlett-Packard Development Company, L.P. Rapid identification of transmission media channel characteristics
US20020168972A1 (en) * 2001-05-11 2002-11-14 Justiss James E. Antenna feedforward interference cancellation system
EP1389367A1 (en) 2001-05-21 2004-02-18 Nokia Corporation Communication system and method using transmit diversity
EP1271872A1 (en) * 2001-06-28 2003-01-02 Nokia Corporation Method and device for estimating the DC offset of a signal
US7058144B2 (en) * 2001-08-07 2006-06-06 Conexant, Inc. Intelligent control system and method for compensation application in a wireless communications system
US7349469B1 (en) * 2001-08-17 2008-03-25 Ati Research, Inc. DC offset correction for constant modulus equalization
GB0123290D0 (en) 2001-09-27 2001-11-21 Nokia Corp DC offset correction in a mobile communication system
EP1474862A2 (en) * 2002-02-01 2004-11-10 Koninklijke Philips Electronics N.V. Additive dc component detection included in an input burst signal
EP1337083A1 (en) * 2002-02-13 2003-08-20 Agere Systems Limited DC offset and channel impulse response estimation
US7428278B2 (en) * 2002-05-09 2008-09-23 Interdigital Technology Corporation Method and apparatus for parallel midamble cancellation
US7269234B2 (en) * 2002-06-14 2007-09-11 Siemens Communications, Inc. Arrangement for dynamic DC offset compensation
US8559559B2 (en) * 2002-06-20 2013-10-15 Qualcomm, Incorporated Method and apparatus for compensating DC offsets in communication systems
US6987797B2 (en) * 2002-07-26 2006-01-17 Qualcomm Incorporated Non-parametric matched filter receiver for wireless communication systems
EP1801985A3 (en) * 2002-10-25 2007-07-18 Qualcomm, Incorporated Method of removing DC offset for a ZIF-based GSM radio receiver with digital frequency offset correction
US6999537B2 (en) 2002-10-25 2006-02-14 Qualcomm Incorporated Method of removing DC offset for a ZIF-based GSM radio solution with digital frequency correlation
AU2003271714A1 (en) * 2002-11-20 2004-06-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and corresponding arrangement for dc offset compensation using channel estimation
US7164732B2 (en) 2002-12-09 2007-01-16 Broadcom Corporation Edge incremental redundancy support in a cellular wireless terminal
US7342979B2 (en) 2002-12-09 2008-03-11 Broadcom Corporation Incremental redundancy support in a cellular wireless terminal having IR processing module
CN1224280C (zh) * 2002-12-27 2005-10-19 大唐移动通信设备有限公司 用于分时隙移动通信系统的时变信道校准方法
US7266359B2 (en) * 2003-03-18 2007-09-04 Freescale Semiconductor, Inc. DC interference removal in wireless communications
US7231001B2 (en) * 2003-03-24 2007-06-12 Agere Systems Inc. Processing servo data having DC level shifts
US20040190652A1 (en) * 2003-03-27 2004-09-30 Motorola, Inc. Method and apparatus for mitigating the effects of non-ideal receiver processing
DE10321743B4 (de) * 2003-05-14 2005-07-07 Infineon Technologies Ag Verbesserte Kanaldecodierung bei der Mehrträger-Signalübertragung durch DC-Offset- und Trägerfrequenz-Offset-abhängige Gewichtung von Zuverlässigkeitsinformationen
US7068735B2 (en) 2003-06-16 2006-06-27 Broadcom Corp. System and method to perform DC compensation on a radio frequency burst in a cellular wireless network
US7352720B2 (en) 2003-06-16 2008-04-01 Broadcom Corporation System and method to determine a bit error probability of received communications within a cellular wireless network
US7406139B2 (en) 2003-06-16 2008-07-29 Broadcom Corporation System and method to identify a modulation format of a data frame within a cellular wireless network
US7342956B2 (en) 2003-06-16 2008-03-11 Broadcom Corporation System and method to extract uplink status flag bits in a cellular wireless network
US7107080B2 (en) 2003-06-16 2006-09-12 Broadcom Corporation System and method to conduct idle mode paging channel monitoring within a cellular wireless network
US7203461B2 (en) 2003-06-16 2007-04-10 Broadcom Corporation Adaptive channel quality estimation algorithm to support link adaptation
US7349495B2 (en) * 2003-09-25 2008-03-25 Intel Corporation Soft bits normalization apparatus, method, and system
US7457379B2 (en) * 2003-10-16 2008-11-25 Broadcom Corporation Adaptive multi-step combined DC offset compensation for EDGE 8-PSK
US7266160B2 (en) * 2003-10-20 2007-09-04 Analog Devices, Inc. Method for joint DC offset correction and channel coefficient estimation in a receiver
US7388936B2 (en) * 2003-11-12 2008-06-17 Mediatek, Inc. Digital data receiver for edge cellular standard with DC offset correction, channel impulse response estimation, I/Q phase imbalance compensation, interference estimation, and selective equalization
US7164901B2 (en) * 2003-12-24 2007-01-16 Agency For Science, Technology And Research DC offset-free RF front-end circuits and systems for direct conversion receivers
US7639736B2 (en) 2004-05-21 2009-12-29 Rambus Inc. Adaptive receive-side equalization
US20060009186A1 (en) * 2004-07-08 2006-01-12 Bin Liu Receiver front-end filtering using low pass filtering and equalization
DE102004039440A1 (de) * 2004-08-13 2006-02-23 Rohde & Schwarz Gmbh & Co. Kg Verfahren zur Ermittlung von Offset-Fehlern in Modulatoren und Demodulatoren
GB0419487D0 (en) * 2004-09-02 2004-10-06 Ttp Communications Ltd DC estimation in received signals
ITVA20040054A1 (it) * 2004-11-23 2005-02-23 St Microelectronics Srl Metodo per stimare coefficienti di attenuazione di canali, metodo di ricezione di simboli e relativi ricevitore e trasmettitore a singola antenna o multi-antenna
US8090001B2 (en) 2004-12-03 2012-01-03 Lantiq Deutschland Gmbh Fast frequency-hopping transceiver and method
KR100638592B1 (ko) * 2004-12-11 2006-10-26 한국전자통신연구원 Ｏｆｄｍ 시스템의 단말의 수신기용 ｄｃ 오프셋 제거 장치및 그 방법
US7508884B2 (en) * 2005-03-24 2009-03-24 Harris Corporation System and method for communicating data using constant amplitude equalized waveform
US7899431B2 (en) * 2005-04-04 2011-03-01 Freescale Semiconductor, Inc. DC offset correction system for a receiver with baseband gain control
TWI323590B (en) * 2005-04-14 2010-04-11 Realtek Semiconductor Corp Method and circuit for equalizing and compensating iq imbalance simultaneously
US7627030B2 (en) * 2005-08-05 2009-12-01 Freescale Semiconductors, Inc. Radio receiver with selectively disabled equalizer
US20070110199A1 (en) * 2005-11-15 2007-05-17 Afshin Momtaz Receive equalizer with adaptive loops
KR100666179B1 (ko) * 2005-11-18 2007-01-09 삼성전자주식회사 타이밍으로 출력 데이터를 초기강화하는 출력 드라이버 및출력 드라이빙 방법
US8331512B2 (en) 2006-04-04 2012-12-11 Rambus Inc. Phase control block for managing multiple clock domains in systems with frequency offsets
US7639737B2 (en) 2006-04-27 2009-12-29 Rambus Inc. Adaptive equalization using correlation of edge samples with data patterns
GB2437574B (en) * 2006-04-28 2008-06-25 Motorola Inc Receiver for use in wireless communications and method of operation of the receiver
FR2903546A1 (fr) * 2006-07-07 2008-01-11 St Microelectronics Sa Procede et dispositif de reduction de la composante continue d'un signal transpose en bande de base,en particulier dans un recepteur du type a conversion directe
EP2241050B1 (en) 2008-02-01 2018-08-08 Rambus Inc. Receiver with enhanced clock and data recovery
US7957412B2 (en) * 2008-03-19 2011-06-07 Cray Inc. Lonely pulse compensation
US8027651B2 (en) * 2008-12-05 2011-09-27 Motorola Solutions, Inc. Method and apparatus for removing DC offset in a direct conversion receiver
US8565351B2 (en) * 2011-04-28 2013-10-22 Mediatek Singapore Pte. Ltd. Channel impulse response (CIR)/DC offset (DCO) joint estimation block and method
US9231637B2 (en) * 2012-11-27 2016-01-05 Aviacomm Inc. Adaptive DC offset cancellation for direct conversion RF receivers
US8942316B2 (en) 2013-03-15 2015-01-27 Samsung Electronics Co., Ltd. Wireless communication system with signal processing mechanism and method of operation thereof
US8837066B1 (en) 2014-04-17 2014-09-16 Lsi Corporation Adaptive baseline correction involving estimation of filter parameter using a least mean squares algorithm

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3438918B2 (ja) 1992-11-27 2003-08-18 コモンウェルス サイエンティフィック アンド インダストリアル リサーチ オーガニゼーション ワイヤレスｌａｎ
JPH07321862A (ja) 1994-05-25 1995-12-08 Matsushita Electric Ind Co Ltd ディジタル変調波復調装置
JP3024524B2 (ja) * 1995-09-25 2000-03-21 日本電気株式会社 キャリア同期ユニット及び同期方法
US5748681A (en) * 1995-10-27 1998-05-05 Lucent Technologies Inc Offset correction for a homodyne radio
US5748677A (en) 1996-01-16 1998-05-05 Kumar; Derek D. Reference signal communication method and system
DE19606102C2 (de) * 1996-02-19 1998-09-03 Siemens Ag Verfahren zum Ausgleich des Gleichspannungsstöranteils von Empfangssignalen und derartig ausgestaltete Empfangseinrichtung bzw. Funkstation
FI962140A (fi) * 1996-05-21 1997-11-22 Nokia Telecommunications Oy Menetelmä impulssivasteen estimoimiseksi sekä vastaanotin
FI101919B1 (fi) * 1996-11-21 1998-09-15 Nokia Telecommunications Oy Menetelmä impulssivasteen laskemiseksi ja vastaanotin
US6421399B1 (en) * 1998-03-05 2002-07-16 Agere Systems Guardian Corporation Frequency and phase estimation for MPSK signals
JPH11284677A (ja) * 1998-03-27 1999-10-15 Nec Corp 復調器とこれを用いたディジタル無線通信システム
US6173011B1 (en) * 1998-05-28 2001-01-09 Glenayre Electronics, Inc. Forward-backward channel interpolator
US6269131B1 (en) * 1998-05-28 2001-07-31 Glenayre Electronics, Inc. Physical channel estimator
US6542560B1 (en) * 1999-04-23 2003-04-01 Lucent Technologies Inc. Method of channel estimation and compensation based thereon

Also Published As

Publication number Publication date
US6717995B2 (en) 2004-04-06
US20030099310A1 (en) 2003-05-29
EP1177602A2 (en) 2002-02-06
WO2000069023A3 (en) 2001-05-25
EP1177602A4 (en) 2003-03-05
WO2000069023A2 (en) 2000-11-16
JP2002544693A (ja) 2002-12-24
EP1177602B1 (en) 2004-07-28
JP4540857B2 (ja) 2010-09-08
US6504884B1 (en) 2003-01-07
DE60012504T2 (de) 2005-09-01
DE60012504D1 (de) 2004-09-02

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