DE602006020600D1 - Kommunikationskanal-schätzung - Google Patents

Kommunikationskanal-schätzung

Info

Publication number
DE602006020600D1
DE602006020600D1 DE602006020600T DE602006020600T DE602006020600D1 DE 602006020600 D1 DE602006020600 D1 DE 602006020600D1 DE 602006020600 T DE602006020600 T DE 602006020600T DE 602006020600 T DE602006020600 T DE 602006020600T DE 602006020600 D1 DE602006020600 D1 DE 602006020600D1
Authority
DE
Germany
Prior art keywords
signal
communication channel
channel estimate
factor
noise
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DE602006020600T
Other languages
English (en)
Inventor
Peter Gaal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qualcomm Inc
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
Publication of DE602006020600D1 publication Critical patent/DE602006020600D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/7097—Interference-related aspects
    • H04B1/7103—Interference-related aspects the interference being multiple access interference
    • H04B1/7105—Joint detection techniques, e.g. linear detectors
    • 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
    • H04L25/022—Channel estimation of frequency 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
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03159—Arrangements for removing intersymbol interference operating in the frequency domain
    • 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
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03592—Adaptation methods
    • H04L2025/03745—Timing of adaptation
    • H04L2025/03764—Timing of adaptation only during predefined intervals
    • H04L2025/0377—Timing of adaptation only during predefined intervals during the reception of training signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Noise Elimination (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
DE602006020600T 2005-09-02 2006-08-31 Kommunikationskanal-schätzung Active DE602006020600D1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US71399505P 2005-09-02 2005-09-02
US11/386,530 US8619884B2 (en) 2005-09-02 2006-03-21 Communication channel estimation
PCT/US2006/034369 WO2007028100A2 (en) 2005-09-02 2006-08-31 Communication channel estimation

Publications (1)

Publication Number Publication Date
DE602006020600D1 true DE602006020600D1 (de) 2011-04-21

Family

ID=37685891

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602006020600T Active DE602006020600D1 (de) 2005-09-02 2006-08-31 Kommunikationskanal-schätzung

Country Status (12)

Country Link
US (1) US8619884B2 (de)
EP (2) EP1932306B1 (de)
JP (2) JP5265364B2 (de)
KR (1) KR101009301B1 (de)
CN (2) CN102333053A (de)
AT (1) ATE501575T1 (de)
BR (1) BRPI0615251A2 (de)
CA (2) CA2751771A1 (de)
DE (1) DE602006020600D1 (de)
RU (1) RU2414083C2 (de)
TW (1) TWI336579B (de)
WO (1) WO2007028100A2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7920661B2 (en) * 2006-03-21 2011-04-05 Qualcomm Incorporated Decision feedback equalizer for code division multiplexed signals
WO2009041542A1 (ja) * 2007-09-28 2009-04-02 Kyocera Corporation 無線通信装置及び受信品質推定方法
EP2214362B1 (de) * 2009-02-02 2012-08-01 Sony Corporation Empfangsvorrichtung mit Frequenzbereichsentzerrer
CN103686830A (zh) * 2012-09-26 2014-03-26 电信科学技术研究院 一种测试终端移动速度的方法及设备
US20170019240A1 (en) 2015-07-16 2017-01-19 LGS Innovations LLC Tone based in-phase and quadrature-phase (iq) compensation
CN107370704A (zh) * 2016-05-13 2017-11-21 财团法人工业技术研究院 无线通信设备及无线信号产生方法
CN115102811B (zh) * 2022-08-26 2022-10-28 合肥睿普康集成电路有限公司 一种适用于lte系统的自适应的信道估计去噪方法

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX174255B (es) 1989-06-20 1994-05-02 Alcatel Nv Procedimiento y dispositivo de evaluacion del debito de circuitos virtuales que utilizan una via de transmision de multiplexaje asincronico temporal
FR2732178A1 (fr) * 1995-03-22 1996-09-27 Philips Electronique Lab Systeme de transmission numerique muni d'un recepteur a egaliseurs cascades
DE19747369A1 (de) 1997-10-27 1999-05-06 Siemens Ag Übertragungskanalschätzung in Telekommunikationssystemen mit drahtloser Telekommunikation
US7491806B2 (en) * 1997-11-24 2009-02-17 Monsanto Technology, Llc Nucleic acid molecules and other molecules associated with transcription in plants
US6452917B1 (en) 1999-04-08 2002-09-17 Qualcomm Incorporated Channel estimation in a CDMA wireless communication system
US6985432B1 (en) 2000-01-28 2006-01-10 Zion Hadad OFDM communication channel
US7218666B2 (en) * 2000-12-29 2007-05-15 Motorola, Inc. Method and system for transmission and frequency domain equalization for wideband CDMA system
US7617099B2 (en) * 2001-02-12 2009-11-10 FortMedia Inc. Noise suppression by two-channel tandem spectrum modification for speech signal in an automobile
DE10111496A1 (de) 2001-03-09 2002-09-19 Siemens Ag Verfahren zum Entzerren von Signalen und Vorrichtung zur Durchführung des Verfahrens
US7953193B2 (en) * 2002-03-28 2011-05-31 Broadcom Corporation Sparse channel equalization
AU2003903826A0 (en) * 2003-07-24 2003-08-07 University Of South Australia An ofdm receiver structure
FR2840133B1 (fr) 2002-05-24 2005-10-14 Dibcom Procede et dispositif d'estimation amelioree de la fonction de transfert d'un canal de transmission variable
US7212569B1 (en) * 2002-06-28 2007-05-01 At&T Corp. Frequency domain decision feedback equalizer
US7346013B2 (en) 2002-07-18 2008-03-18 Coherent Logix, Incorporated Frequency domain equalization of communication signals
US6987797B2 (en) * 2002-07-26 2006-01-17 Qualcomm Incorporated Non-parametric matched filter receiver for wireless communication systems
ATE377878T1 (de) 2002-09-05 2007-11-15 Mitsubishi Electric Inf Tech Verfahren zur mc-cdma abwärtsrichtstrahlbildung, wobei die gewichtungen der antennenelemente benutzer- und frequenzindividuell sind und zur maximierung des signals zur interferenz und rauschverhältnisses angepasst werden
US7301993B2 (en) * 2002-09-13 2007-11-27 Broadcom Corporation Channel estimation in a spread spectrum receiver
US7039004B2 (en) * 2002-10-01 2006-05-02 Atheros Communications, Inc. Decision feedback channel estimation and pilot tracking for OFDM systems
JP4464651B2 (ja) * 2002-10-11 2010-05-19 パナソニック株式会社 回り込みキャンセラ、中継システム及び回り込みキャンセル方法
DE10251479A1 (de) 2002-11-05 2004-05-19 Siemens Ag Verfahren zur Schätzung einer Kanalqualität
JP4523294B2 (ja) 2003-02-10 2010-08-11 三菱電機株式会社 通信装置
US20040203812A1 (en) 2003-02-18 2004-10-14 Malladi Durga Prasad Communication receiver with an adaptive equalizer that uses channel estimation
JP3816450B2 (ja) * 2003-02-18 2006-08-30 Ｋｄｄｉ株式会社 送信機及び受信機
WO2004112303A2 (en) * 2003-03-10 2004-12-23 Macphy Modems, Inc. Method and apparatus for single burst equalization of single carrier signals in broadband wireless access systems
US7406125B2 (en) 2003-04-09 2008-07-29 Jabil Circuit, Inc. Method for initialization of per tone frequency domain equalizer (FEQ) through noise reduction for multi-tone based modems
US7792184B2 (en) * 2003-04-24 2010-09-07 Qualcomm Incorporated Apparatus and method for determining coefficient of an equalizer
JP2005045628A (ja) * 2003-07-24 2005-02-17 Fujitsu Ltd Ｏｆｄｍ通信方式の受信装置
JP4204917B2 (ja) * 2003-07-31 2009-01-07 Ｋｄｄｉ株式会社 伝送路特性推定装置、コンピュータプログラム
DE60330453D1 (de) 2003-08-26 2010-01-21 Ericsson Telefon Ab L M Positionierung eines Pfadsucherfensters in einem CDMA-Empfänger
JP4555652B2 (ja) 2003-10-01 2010-10-06 パナソニック株式会社 Ｏｆｄｍ信号受信装置及びｏｆｄｍ信号受信方法
US7417945B2 (en) * 2003-10-02 2008-08-26 Texas Instruments Incorporated Transmitter and receiver for use with an orthogonal frequency division multiplexing system
AU2005208694B2 (en) 2004-01-28 2008-11-27 Qualcomm Incorporated Timing estimation in an OFDM receiver
US7821913B2 (en) 2005-03-29 2010-10-26 Qualcomm Incorporated Method and apparatus for data and pilot structures supporting equalization
US7920661B2 (en) * 2006-03-21 2011-04-05 Qualcomm Incorporated Decision feedback equalizer for code division multiplexed signals

Also Published As

Publication number Publication date
TWI336579B (en) 2011-01-21
CA2620896A1 (en) 2007-03-08
CN101283558A (zh) 2008-10-08
RU2414083C2 (ru) 2011-03-10
EP1932306B1 (de) 2011-03-09
CN101283558B (zh) 2012-07-04
US20070053526A1 (en) 2007-03-08
JP2009507434A (ja) 2009-02-19
EP2296328A1 (de) 2011-03-16
EP1932306A2 (de) 2008-06-18
EP2296328B1 (de) 2013-05-01
BRPI0615251A2 (pt) 2011-05-10
KR101009301B1 (ko) 2011-01-18
US8619884B2 (en) 2013-12-31
JP2013153440A (ja) 2013-08-08
ATE501575T1 (de) 2011-03-15
CA2751771A1 (en) 2007-03-08
KR20080053339A (ko) 2008-06-12
WO2007028100A2 (en) 2007-03-08
RU2008112669A (ru) 2009-10-10
CN102333053A (zh) 2012-01-25
JP5265364B2 (ja) 2013-08-14
WO2007028100A3 (en) 2007-07-19
TW200718108A (en) 2007-05-01

Similar Documents

Publication Publication Date Title
ATE501575T1 (de) Kommunikationskanal-schätzung
WO2007049845A3 (en) Communication apparatus
WO2008018761A3 (en) Method of estimating signal-to-noise ratio, method of adjusting feedback information transmission, adaptive modulation and coding method using the same, and transceiver thereof
HK1084534A1 (en) Channel estimation feedback in an orthogonal frequency division multiplexing system or the like
TW200705916A (en) Adaptive time-filtering for channel estimation in OFDM system
DE602004009625D1 (de) Kommunikationsgerät mit Fähigkeiten zur Dopplerfrequenzschätzung
IN2012DN05002A (de)
EP1849116A4 (de) Rauschschätzung bei einer frequenz durch abtastung von rauschen bei anderen frequenzen
ATE532301T1 (de) Kanalschätzung für drahtlose kommunikation
GB2447576B (en) Transmit-power control for wireless mobile services
WO2011005726A3 (en) Midamble for wireless networks
DE602004019262D1 (de) Mehrträgerempfänger
EP2178333A3 (de) Synchrone und asynchrone Interferenzbewältigung
WO2007063528A3 (en) Swept notch uwb transmitter
HK1078195A1 (en) Wireless network adapted to transmit channel side information and method therefor
FR2873247B1 (fr) Emetteur radio avec adaptation d'impedance variable
DE602004011208D1 (de) OFDM Empfänger mit Intersymbolinterferenzunterdrückung
ATE453254T1 (de) Signal-, störungs- und rauschleistungsmessung
DE602004028394D1 (de) Signalstörungsmessung
DE60218089D1 (de) Hochfrequenz-Sender/Empfänger
GB2445703A (en) Sound privacy machine and methods of use thereof
FR2890276B3 (fr) Oreillette emettrice/receptrice a faible bruit
DE60220449D1 (de) Verfahren und gerät zur dopplerspreizschätzung und dopplerverschiebungschätzung
DE602004028544D1 (de) Interferenzsignalerkennung und Kanalschätzung für drahtlose Kommunikationsnetze
WO2008100962A3 (en) User power offset estimation using dedicated pilot tones for ofdma