ZA98131B - Method and apparatus for channel estimation - Google Patents

Method and apparatus for channel estimation

Info

Publication number
ZA98131B
ZA98131B ZA98131A ZA98131A ZA98131B ZA 98131 B ZA98131 B ZA 98131B ZA 98131 A ZA98131 A ZA 98131A ZA 98131 A ZA98131 A ZA 98131A ZA 98131 B ZA98131 B ZA 98131B
Authority
ZA
South Africa
Prior art keywords
channel estimation
estimation
channel
Prior art date
Application number
ZA98131A
Other languages
English (en)
Inventor
Hossam H H Mimy
Original Assignee
Ericsson Ge Mobile 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 Ericsson Ge Mobile Inc filed Critical Ericsson Ge Mobile Inc
Publication of ZA98131B publication Critical patent/ZA98131B/xx

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • H04L25/022Channel estimation of frequency response
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only

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)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
ZA98131A 1997-01-15 1998-01-08 Method and apparatus for channel estimation ZA98131B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/784,193 US5912876A (en) 1997-01-15 1997-01-15 Method and apparatus for channel estimation

Publications (1)

Publication Number Publication Date
ZA98131B true ZA98131B (en) 1998-07-08

Family

ID=25131639

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA98131A ZA98131B (en) 1997-01-15 1998-01-08 Method and apparatus for channel estimation

Country Status (10)

Country Link
US (1) US5912876A (xx)
EP (1) EP0953247A1 (xx)
CN (1) CN1250566A (xx)
AU (1) AU724517B2 (xx)
BR (1) BR9806881A (xx)
CA (1) CA2277184A1 (xx)
HU (1) HUP0001298A2 (xx)
TW (1) TW387191B (xx)
WO (1) WO1998032268A1 (xx)
ZA (1) ZA98131B (xx)

Families Citing this family (61)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6219377B1 (en) * 1998-06-29 2001-04-17 Legerity, Inc. Method and apparatus for generating tones in a multi-tone modem
US6331975B1 (en) * 1998-10-28 2001-12-18 Texas Instruments Incorporated User data indicator for discontinuous transmission
GB2346520A (en) * 1998-11-09 2000-08-09 Wi Lan Inc Data recovery in an OFDM system exploiting pilot subcarriers
US6952394B1 (en) 1999-05-25 2005-10-04 Samsung Electronics Co., Ltd. Method for transmitting and receiving orthogonal frequency division multiplexing signal and apparatus therefor
JP3303847B2 (ja) * 1999-06-02 2002-07-22 日本電気株式会社 チャネル応答推定回路
US6700866B1 (en) 1999-06-23 2004-03-02 At&T Wireless Services, Inc. Methods and apparatus for use in obtaining frequency synchronization in an OFDM communication system
US6768714B1 (en) 1999-06-23 2004-07-27 At&T Wireless Services, Inc. Methods and apparatus for use in obtaining frequency synchronization in an OFDM communication system
US6298035B1 (en) 1999-12-21 2001-10-02 Nokia Networks Oy Estimation of two propagation channels in OFDM
JP4284813B2 (ja) * 2000-02-18 2009-06-24 株式会社デンソー Ofdm用受信装置
GB2365715B (en) * 2000-05-15 2004-04-28 Univ Bristol Circuit
US6990061B2 (en) * 2000-05-31 2006-01-24 Interuniversitair Micro-Elektronica Centrum Method and apparatus for channel estimation
US6647078B1 (en) * 2000-06-30 2003-11-11 Motorola, Inc. Method and device for multi-user frequency-domain channel estimation based on gradient optimization techniques
ATE349844T1 (de) * 2000-07-05 2007-01-15 Sony Deutschland Gmbh Kanalschätzer für ein ofdm system
NZ506558A (en) 2000-08-25 2003-04-29 Ind Res Ltd A broadband indoor communication system using ofdm
WO2002021712A1 (en) * 2000-09-05 2002-03-14 Linkair Communications, Inc. A method of channel estimation and a system for implementing the method
US6654408B1 (en) 2000-10-27 2003-11-25 Wisconsin Alumni Research Foundation Method and system for multi-carrier multiple access reception in the presence of imperfections
US6947748B2 (en) 2000-12-15 2005-09-20 Adaptix, Inc. OFDMA with adaptive subcarrier-cluster configuration and selective loading
NZ509688A (en) 2001-02-01 2003-06-30 Ind Res Ltd Maximum likelihood sychronisation (estimating time delay) for wireless digital communications system using a pilot symbol
US6990153B1 (en) * 2001-02-06 2006-01-24 Agency For Science, Technology And Research Method and apparatus for semi-blind communication channel estimation
US7158474B1 (en) 2001-02-21 2007-01-02 At&T Corp. Interference suppressing OFDM system for wireless communications
US6882619B1 (en) 2001-02-21 2005-04-19 At&T Corp. Interference suppressing OFDM method for wireless communications
US7027519B2 (en) 2001-02-28 2006-04-11 Mitsubishi Electric Research Laboratories, Inc. Iterative maximum likelihood channel estimation and signal detection for OFDM systems
FR2822567B1 (fr) * 2001-03-22 2003-05-02 Mitsubishi Electric Inf Tech Methode et dispositif d'egalisation de type gmmse
DE10115221A1 (de) * 2001-03-28 2002-10-10 Bosch Gmbh Robert Verfahren zur Rahmen- und Frequenzsynchronisation eines OFDM-Signals und Verfahren zum Senden eines OFDM-Signals
KR100434473B1 (ko) * 2001-05-11 2004-06-05 삼성전자주식회사 직교주파수 분할 다중 시스템에서 채널 복호 장치 및 방법
EP1438669B1 (en) 2001-06-27 2014-01-22 SKKY Incorporated Improved media delivery platform
KR20030014078A (ko) * 2001-08-10 2003-02-15 최승국 엠엠에스이 채널 추정 방식의 오에프디엠 무선 전송 장치
EP1283614A1 (en) * 2001-08-10 2003-02-12 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Channel estimation in a multicarrier transmit diversity system
US7031250B2 (en) * 2001-09-27 2006-04-18 Rf Micro Devices, Inc. Method and apparatus for channel estimation
US7209433B2 (en) * 2002-01-07 2007-04-24 Hitachi, Ltd. Channel estimation and compensation techniques for use in frequency division multiplexed systems
US7173991B2 (en) 2002-06-17 2007-02-06 Hitachi, Ltd. Methods and apparatus for spectral filtering channel estimates
US7139340B2 (en) * 2002-06-28 2006-11-21 Hitachi, Ltd. Robust OFDM carrier recovery methods and apparatus
US7397758B1 (en) * 2002-08-12 2008-07-08 Cisco Technology, Inc. Channel tracking in a OFDM wireless receiver
US7161896B1 (en) * 2002-08-12 2007-01-09 Cisco Systems Wireless Networking (Australia) Pty Limited Channel estimation in a multicarrier radio receiver
KR100471538B1 (ko) * 2002-09-18 2005-02-21 한기열 오에프디엠 시스템의 채널추정과 심볼동기 타이밍결정장치 및 방법
GB2393618B (en) * 2002-09-26 2004-12-15 Toshiba Res Europ Ltd Transmission signals methods and apparatus
DE10248507A1 (de) * 2002-10-11 2004-04-22 IHP GmbH - Innovations for High Performance Microelectronics/Institut für innovative Mikroelektronik Verfahren und Vorrichtung zur Fehlerkorrektur von Multiplex-Signalen
US20040081131A1 (en) * 2002-10-25 2004-04-29 Walton Jay Rod OFDM communication system with multiple OFDM symbol sizes
AU2003201483A1 (en) * 2003-01-15 2004-08-10 Telefonaktiebolaget Lm Ericsson (Publ) Correlation method for channel estimation for ofdm
DE10304751A1 (de) * 2003-02-05 2004-08-26 Siemens Ag Verfahren zur Übertragung von Daten in einem Mehrträger-Funkkommunikationssystem
AU2003212381A1 (en) * 2003-03-27 2004-10-18 Docomo Communications Laboratories Europe Gmbh Apparatus and method for estimating a plurality of channels
US7218693B2 (en) * 2003-05-08 2007-05-15 Texas Instruments Incorporated Method and apparatus for channel estimation in a packet based transmission system having reduced complexity
US20040228417A1 (en) * 2003-05-12 2004-11-18 Mcnc Research And Development Institute Communication system with adaptive channel correction
EP1511210B1 (en) * 2003-08-28 2011-11-09 Motorola Solutions, Inc. OFDM channel estimation and tracking for multiple transmit antennas
DE10348205B4 (de) * 2003-10-16 2005-10-27 Infineon Technologies Ag Verfahren zur Kanalschätzung bei Verwendung verschiedener Modulationsverfahren innerhalb eines Signalintervalls
US7437135B2 (en) 2003-10-30 2008-10-14 Interdigital Technology Corporation Joint channel equalizer interference canceller advanced receiver
US20070127355A1 (en) * 2003-12-05 2007-06-07 Koninklijke Philips Electronics N.V. Method and apparatus of noise variance estimation for use in wireless communication systems
US8391413B2 (en) * 2003-12-19 2013-03-05 Qualcomm Incorporated Channel estimation for an OFDM communication system with inactive subbands
US7400692B2 (en) 2004-01-14 2008-07-15 Interdigital Technology Corporation Telescoping window based equalization
CN1677969B (zh) * 2004-03-31 2010-10-13 因芬尼昂技术股份公司 反向兼容传输的改良操作
KR100594084B1 (ko) * 2004-04-30 2006-06-30 삼성전자주식회사 직교 주파수 분할 다중 수신기의 채널 추정 방법 및 채널추정기
TWI279998B (en) * 2004-05-25 2007-04-21 Realtek Semiconductor Corp Adaptive channel estimation method for multi-carrier communication system
CN100372415C (zh) * 2004-09-30 2008-02-27 华为技术有限公司 正交频分复用系统中跨小区测量的方法
US7573851B2 (en) 2004-12-07 2009-08-11 Adaptix, Inc. Method and system for switching antenna and channel assignments in broadband wireless networks
ES2306557B1 (es) * 2005-12-23 2009-09-03 Diseño De Sistemas En Silicio, S.A. Procedimiento de transmision y recepcion de señales con diferentes frecuencias de muestreo.
US7801250B2 (en) * 2006-05-24 2010-09-21 General Dynamics Advanced Information Systems, Inc. Low latency analog QAM coherent demodulation algorithm
TWI329435B (en) * 2006-09-13 2010-08-21 Sunplus Technology Co Ltd Channel estimation apparatus with an optimal search and method thereof
KR101314926B1 (ko) * 2006-12-07 2013-10-04 인터디지탈 테크날러지 코포레이션 트레이닝 신호와 정보 비트들을 할당하기 위한 무선 통신 방법 및 장치
US8085873B2 (en) * 2007-01-02 2011-12-27 Qualcomm, Incorporated Systems and methods for enhanced channel estimation in wireless communication systems
DE102009033720A1 (de) 2008-07-18 2010-04-29 Technische Universität Ilmenau Verfahren zur Kanalschätzung in Two-Way-Relaying-Systemen mit"Amplify & Forward"- Relays
CN101621338B (zh) * 2009-01-07 2012-01-25 北京邮电大学 一种抗色散的光ofdm接收方法及装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8609711D0 (en) * 1986-04-21 1986-05-29 Clark A P Channel estimation & detection
FR2671923B1 (fr) * 1991-01-17 1993-04-16 France Etat Dispositif de demodulation coherente de donnees numeriques entrelacees en temps et en frequence, a estimation de la reponse frequentielle du canal de transmission et seuillage, et emetteur correspondant.
US5282222A (en) * 1992-03-31 1994-01-25 Michel Fattouche Method and apparatus for multiple access between transceivers in wireless communications using OFDM spread spectrum
EP0682426B1 (en) * 1994-05-09 2001-10-24 Victor Company Of Japan, Limited OFDM transmitter and receiver
US5767738A (en) * 1996-10-21 1998-06-16 Motorola, Inc. Apparatus and method for demodulating a modulated signal

Also Published As

Publication number Publication date
WO1998032268A1 (en) 1998-07-23
HUP0001298A2 (hu) 2000-08-28
BR9806881A (pt) 2000-04-18
AU724517B2 (en) 2000-09-21
CN1250566A (zh) 2000-04-12
EP0953247A1 (en) 1999-11-03
TW387191B (en) 2000-04-11
AU5825098A (en) 1998-08-07
CA2277184A1 (en) 1998-07-23
US5912876A (en) 1999-06-15

Similar Documents

Publication Publication Date Title
ZA98131B (en) Method and apparatus for channel estimation
GB2340004B (en) Method and apparatus for multipoint trunking
IL122611A0 (en) Apparatus and method for multimedia communications
SG85137A1 (en) Channel allocation method and apparatus
EP1026992A4 (en) BIOPSY METHOD AND DEVICE
AU6647396A (en) Method and apparatus for spread-spectrum channel estimation
GB9803183D0 (en) Apparatus and method
GB2346294B (en) Channel scanning method and apparatus
EP1165373A4 (en) DEVICE AND METHOD FOR CONTINUOUSLY FORMING BAGS OF SAND
ZA986663B (en) Method and apparatus for motion estimation
GB2309858B (en) Apparatus and method for channel allocation
EP1012966A4 (en) APPARATUS AND METHOD FOR PHASE ESTIMATION IN BLOCKS
GB2312812B (en) Interface apparatus an method
SG88757A1 (en) Reproduction method and reproduction apparatus
GB9718369D0 (en) Multiplexing Method and Apparatus
EP1025337A4 (en) METHOD AND DEVICE FOR LOCKING INTO AN OBJECT
AU9337198A (en) Channel estimation method and device
GB9811425D0 (en) Apparatus and method
GB9812888D0 (en) Apparatus and method for aliging parts
GB9905183D0 (en) Channel allocAtion method and apparatus
AU4896199A (en) Method and device for channel estimation
GB9602566D0 (en) Method and apparatus for correlation
GB9919611D0 (en) Apparatus and method
GB2309135B (en) Method and apparatus for motion estimation
GB9822769D0 (en) Method and apparatus