ATE429760T1 - Kanalschätzungsoptimierung - Google Patents

Kanalschätzungsoptimierung

Info

Publication number
ATE429760T1
ATE429760T1 AT06736533T AT06736533T ATE429760T1 AT E429760 T1 ATE429760 T1 AT E429760T1 AT 06736533 T AT06736533 T AT 06736533T AT 06736533 T AT06736533 T AT 06736533T AT E429760 T1 ATE429760 T1 AT E429760T1
Authority
AT
Austria
Prior art keywords
response estimate
frequency response
channel estimation
subbands
taps
Prior art date
Application number
AT06736533T
Other languages
English (en)
Inventor
Kiran Mukkavilli
Kevin S Cousineau
Taek Chung
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Application granted granted Critical
Publication of ATE429760T1 publication Critical patent/ATE429760T1/de

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
    • H04L25/00Baseband systems
    • H04L25/02Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202Channel estimation
    • H04L25/0224Channel estimation using sounding signals
    • H04L25/0228Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • 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
    • H04L25/024Channel estimation channel estimation algorithms
    • H04L25/025Channel estimation channel estimation algorithms using least-mean-square [LMS] method
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • 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
    • H04L25/0212Channel estimation of impulse response
    • 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
    • H04L25/0212Channel estimation of impulse response
    • H04L25/0216Channel estimation of impulse response with estimation of channel length

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Circuits Of Receivers In General (AREA)
AT06736533T 2005-03-01 2006-03-01 Kanalschätzungsoptimierung ATE429760T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US65783505P 2005-03-01 2005-03-01
PCT/US2006/007227 WO2006094037A2 (en) 2005-03-01 2006-03-01 Channel estimate optimization for multiple transmit modes

Publications (1)

Publication Number Publication Date
ATE429760T1 true ATE429760T1 (de) 2009-05-15

Family

ID=36578814

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06736533T ATE429760T1 (de) 2005-03-01 2006-03-01 Kanalschätzungsoptimierung

Country Status (12)

Country Link
US (1) US20060203710A1 (de)
EP (1) EP1861972B1 (de)
JP (1) JP2008532432A (de)
KR (2) KR100941901B1 (de)
CN (1) CN101171815A (de)
AT (1) ATE429760T1 (de)
BR (1) BRPI0608390A2 (de)
CA (1) CA2599739A1 (de)
DE (1) DE602006006426D1 (de)
RU (1) RU2355114C1 (de)
TW (1) TW200704072A (de)
WO (1) WO2006094037A2 (de)

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8391413B2 (en) * 2003-12-19 2013-03-05 Qualcomm Incorporated Channel estimation for an OFDM communication system with inactive subbands
US7817533B2 (en) * 2006-01-11 2010-10-19 Amicus Wireless Technology Ltd. Device and method for performing channel estimation for OFDM-based signals with variable pilot subcarrier spacing
US7817735B2 (en) 2006-01-11 2010-10-19 Amicus Wireless Technology Ltd. Device and method of performing channel estimation for OFDM-based wireless communication system
WO2007103183A2 (en) * 2006-03-01 2007-09-13 Interdigital Technology Corporation Method and apparatus for channel estimation in an orthogonal frequency division multiplexing system
US8005169B1 (en) * 2006-03-17 2011-08-23 Marvell International Ltd. Joint estimation of channel and preamble sequence for orthogonal frequency division multiplexing systems
US20070217527A1 (en) * 2006-03-20 2007-09-20 Beceem Communications, Inc. Method and system for determining channel response in a block transmission system
JP2007288450A (ja) * 2006-04-14 2007-11-01 Sony Corp 復調装置及び方法
US9253009B2 (en) * 2007-01-05 2016-02-02 Qualcomm Incorporated High performance station
GB2446439B (en) * 2007-02-08 2009-06-24 Toshiba Res Europ Ltd Wireless communications apparatus and method
JP5290207B2 (ja) 2007-03-02 2013-09-18 クゥアルコム・インコーポレイテッド スーパーインポーズされた複合チャネルフィルタ
JP4709789B2 (ja) * 2007-03-05 2011-06-22 Okiセミコンダクタ株式会社 等化器
US8787499B2 (en) * 2007-03-27 2014-07-22 Qualcomm Incorporated Channel estimation with effective co-channel interference suppression
CN101141425A (zh) * 2007-07-04 2008-03-12 中兴通讯股份有限公司 基于时分导频段的移动通信系统的信道估计方法
US8411805B1 (en) 2007-08-14 2013-04-02 Marvell International Ltd. Joint estimation of channel and preamble sequence for orthogonal frequency division multiplexing systems
US7801020B2 (en) * 2007-08-29 2010-09-21 Intel Corporation Mobile channel estimation algorithm for DVB-H COFDM demodulator
CN101127753B (zh) * 2007-09-29 2011-12-14 北京邮电大学 一种适用于多载波系统的信道估计方法
TW200919993A (en) * 2007-10-26 2009-05-01 Univ Nat Chiao Tung Method and apparatus for determining a channel impulse response
EP2071787B1 (de) * 2007-12-10 2013-03-13 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Verfahren und Vorrichtung zur Anordnung eines FFT-Fensters in einem OFDM-Empfänger
EP2071784B1 (de) * 2007-12-10 2013-05-22 TELEFONAKTIEBOLAGET LM ERICSSON (publ) Verfahren und Vorrichtung zur Beurteilung der Verzögerungsstreuung
JP4691119B2 (ja) * 2008-02-14 2011-06-01 日本電信電話株式会社 ウェイト演算装置、及び、ウェイト演算方法
US8520500B2 (en) * 2008-03-28 2013-08-27 Qualcomm Incorporated Buffered demod and demap functions
CN101567870B (zh) * 2008-04-22 2011-11-16 普天信息技术研究院有限公司 信道响应起始位置、峰值位置和结束位置检测方法及装置
US7970070B2 (en) * 2008-05-14 2011-06-28 Newport Media, Inc. Adaptive frequency domain equalization in OFDM based communication system
JP5362303B2 (ja) * 2008-09-26 2013-12-11 株式会社エヌ・ティ・ティ・ドコモ 受信装置及び受信方法
JP5263958B2 (ja) * 2009-02-04 2013-08-14 日本電気株式会社 信号処理装置
TWI422193B (zh) * 2009-05-11 2014-01-01 Mstar Semiconductor Inc 通道估測裝置與方法
CN101964769B (zh) * 2009-07-22 2014-01-29 晨星软件研发(深圳)有限公司 信道估算方法与装置
US8750089B2 (en) * 2010-01-05 2014-06-10 Broadcom Corporation Method and system for iterative discrete fourier transform (DFT) based channel estimation using minimum mean square error (MMSE) techniques
KR101893622B1 (ko) * 2010-06-24 2018-08-30 코다 와이어리스 피티와이 리미티드 무선 통신 시스템에서 다중 경로 신호 추정
US9088448B2 (en) * 2011-11-11 2015-07-21 Mediatek Singapore Pte. Ltd. Phased array device and calibration method therefor
US9008249B2 (en) * 2012-02-10 2015-04-14 Qualcomm Incorporated Detection and filtering of an undesired narrowband signal contribution in a wireless signal receiver
US9730202B2 (en) 2012-11-14 2017-08-08 Lg Electronics Inc. Method and device for monitoring downlink control channel
US9065686B2 (en) 2012-11-21 2015-06-23 Qualcomm Incorporated Spur detection, cancellation and tracking in a wireless signal receiver
US8897353B2 (en) * 2013-03-15 2014-11-25 Acorn Technologies, Inc. Block time domain channel estimation in OFDM system
US9154337B2 (en) * 2013-03-15 2015-10-06 Acorn Technologies, Inc. Non-linear time domain channel estimation in OFDM systems
US9628301B2 (en) * 2014-07-23 2017-04-18 Texas Instruments Incorporated Interference estimation for LTE receiver
WO2016061796A1 (zh) * 2014-10-23 2016-04-28 华为技术有限公司 信道估计的方法及装置
GB201502193D0 (en) * 2015-02-10 2015-03-25 Univ Surrey Obtaining channel state information in a multicarrier wireless communication network
US10123329B2 (en) * 2015-10-07 2018-11-06 Intel IP Corporation Long training field in uplink multi-user multiple-input multiple-output communications
CN109076047B (zh) * 2016-05-11 2020-10-23 华为技术有限公司 一种信号处理方法及发射机
EP3316534A1 (de) * 2016-10-27 2018-05-02 Fraunhofer Gesellschaft zur Förderung der Angewand Kanalschätzung von frequenzteilbändern
US10778344B2 (en) * 2018-11-14 2020-09-15 Texas Instruments Incorporated Channel tracking method and module
US11374669B2 (en) 2018-11-28 2022-06-28 Texas Instruments Incorporated Phase spectrum based delay estimation method and module
US10812294B2 (en) 2018-11-28 2020-10-20 Texas Instruments Incorporated Channel estimation method and system for IQ imbalance and local oscillator leakage correction
US11095485B2 (en) 2018-11-30 2021-08-17 Texas Instruments Incorporated Frequency-domain IQ mismatch estimation
RU2708061C9 (ru) * 2018-12-29 2020-06-26 Акционерное общество "Лётно-исследовательский институт имени М.М. Громова" Способ оперативной инструментальной оценки энергетических параметров полезного сигнала и непреднамеренных помех на антенном входе бортового радиоприёмника с телефонным выходом в составе летательного аппарата

Family Cites Families (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4135953A1 (de) * 1991-10-31 1993-05-06 Rohde & Schwarz Gmbh & Co Kg, 8000 Muenchen, De Verfahren zum bestimmen der komplexen impulsantwort eines funkkanals
GB2271245B (en) * 1992-09-30 1996-05-08 Roke Manor Research Improvements in or relating to mobile radio systems
RU2015622C1 (ru) * 1992-11-03 1994-06-30 Научно-производственное объединение "ЭНОП" Автоматизированная система контроля
US5715235A (en) * 1993-11-26 1998-02-03 Ntt Mobile Communications Network Inc. Communication system capable of performing FDMA transmission
JP3746580B2 (ja) * 1996-12-09 2006-02-15 株式会社アドバンテスト Cdma信号の波形品質測定方法
RU2132594C1 (ru) * 1998-01-05 1999-06-27 Военная академия связи Способ и устройство диагностики состояния аппаратуры цифровых систем передачи
EP0966113B1 (de) * 1998-06-19 2003-12-10 Motorola Semiconducteurs S.A. Verfahren und Vorrichtung zum Entzerren in einem Funkempfänger
JP2000286821A (ja) * 1999-01-29 2000-10-13 Matsushita Electric Ind Co Ltd Ofdm通信装置
US6996195B2 (en) * 1999-12-22 2006-02-07 Nokia Mobile Phones Ltd. Channel estimation in a communication system
JP2003101503A (ja) * 2001-09-21 2003-04-04 Mega Chips Corp Ofdm用等化装置およびofdm用等化方法
US7248559B2 (en) * 2001-10-17 2007-07-24 Nortel Networks Limited Scattered pilot pattern and channel estimation method for MIMO-OFDM systems
JP2003152669A (ja) * 2001-11-08 2003-05-23 Mega Chips Corp Ofdm用復調装置
JP3773839B2 (ja) * 2001-12-05 2006-05-10 日本放送協会 デジタル信号の受信解析装置
US7180965B2 (en) * 2001-12-12 2007-02-20 Texas Instruments Incorporated Phase estimation and compensation in orthogonal frequency division multiplex (OFDM) systems
US7184713B2 (en) * 2002-06-20 2007-02-27 Qualcomm, Incorporated Rate control for multi-channel communication systems
US7039001B2 (en) * 2002-10-29 2006-05-02 Qualcomm, Incorporated Channel estimation for OFDM communication systems
US7280467B2 (en) * 2003-01-07 2007-10-09 Qualcomm Incorporated Pilot transmission schemes for wireless multi-carrier communication systems
JP2004236076A (ja) * 2003-01-31 2004-08-19 Toshiba Corp 受信装置及び受信方法
JP4523294B2 (ja) * 2003-02-10 2010-08-11 三菱電機株式会社 通信装置
US7095790B2 (en) * 2003-02-25 2006-08-22 Qualcomm, Incorporated Transmission schemes for multi-antenna communication systems utilizing multi-carrier modulation
JP4099191B2 (ja) * 2003-06-22 2008-06-11 株式会社エヌ・ティ・ティ・ドコモ チャネル推定装置およびチャネル推定方法
KR100981571B1 (ko) * 2003-07-26 2010-09-10 삼성전자주식회사 다중 입력 다중 출력 적응 안테나 어레이 방식을 사용하는이동 통신 시스템에서 신호 송수신 시스템 및 방법
CN1581740B (zh) * 2003-08-15 2012-10-17 上海贝尔阿尔卡特股份有限公司 Ofdm系统中基于pn序列和导频的反馈型信道估计方法及装置
CA2483117C (en) * 2003-09-29 2013-10-29 Xianbin Wang Multi-symbol encapsulated ofdm system
EP1531590A1 (de) * 2003-11-11 2005-05-18 STMicroelectronics Belgium N.V. Verfahren und Vorrichtung zur Kanalentzerrung unter Verwendung einer Schätzung der Länge der Kanalimpulsantwort
US7016297B2 (en) * 2003-12-10 2006-03-21 Clive K Tang Method and apparatus providing decentralized, goal-orientated adaptive learning in an adaptive orthogonal frequency division multiplex communication system
US7382842B2 (en) * 2004-08-02 2008-06-03 Beceem Communications Inc. Method and system for performing channel estimation in a multiple antenna block transmission system
US7551547B2 (en) * 2005-01-28 2009-06-23 At&T Intellectual Property I, L.P. Delay restricted channel estimation for multi-carrier systems

Also Published As

Publication number Publication date
US20060203710A1 (en) 2006-09-14
CN101171815A (zh) 2008-04-30
CA2599739A1 (en) 2006-09-08
DE602006006426D1 (de) 2009-06-04
EP1861972A2 (de) 2007-12-05
KR100966069B1 (ko) 2010-06-28
BRPI0608390A2 (pt) 2009-12-29
EP1861972B1 (de) 2009-04-22
WO2006094037A3 (en) 2007-01-18
TW200704072A (en) 2007-01-16
JP2008532432A (ja) 2008-08-14
KR100941901B1 (ko) 2010-02-16
KR20090123922A (ko) 2009-12-02
KR20070113270A (ko) 2007-11-28
RU2355114C1 (ru) 2009-05-10
WO2006094037A2 (en) 2006-09-08

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