NO20050863L - Hybrid signalutjevning ved tilbakekopling - Google Patents

Hybrid signalutjevning ved tilbakekopling

Info

Publication number
NO20050863L
NO20050863L NO20050863A NO20050863A NO20050863L NO 20050863 L NO20050863 L NO 20050863L NO 20050863 A NO20050863 A NO 20050863A NO 20050863 A NO20050863 A NO 20050863A NO 20050863 L NO20050863 L NO 20050863L
Authority
NO
Norway
Prior art keywords
equalizer
correction term
received sample
function
feedback
Prior art date
Application number
NO20050863A
Other languages
English (en)
Inventor
John E Smee
Srikant Jayaraman
Ivan Jesus Fernandez Corbaton
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
Priority claimed from US10/199,158 external-priority patent/US7035329B2/en
Priority claimed from US10/199,159 external-priority patent/US7046726B2/en
Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of NO20050863L publication Critical patent/NO20050863L/no

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
    • H04L25/03—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
    • H04L25/03057—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a recursive structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/01—Equalisers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • 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
    • 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
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03248—Arrangements for operating in conjunction with other apparatus
    • H04L25/03254—Operation with other circuitry for removing intersymbol interference
    • H04L25/03267—Operation with other circuitry for removing intersymbol interference with decision feedback equalisers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/0349—Tapped delay lines time-recursive as a feedback filter
    • 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
    • H04L2025/03433—Arrangements for removing intersymbol interference characterised by equaliser structure
    • H04L2025/03439—Fixed structures
    • H04L2025/03445—Time domain
    • H04L2025/03471—Tapped delay lines
    • H04L2025/03484—Tapped delay lines time-recursive
    • H04L2025/03496—Tapped delay lines time-recursive as a prediction filter
    • 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
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Complex Calculations (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Dc Digital Transmission (AREA)
  • Networks Using Active Elements (AREA)
  • Control Of Electric Motors In General (AREA)
  • Exchange Systems With Centralized Control (AREA)

Abstract

Beslutningstilbakekoplingsutjevner hvor et korreksjonsledd brukes til å kompensere for glattefeil og således hindrer feilutbredelse. Filterkoeffisienter for filtre i utjevneren blir valgt for å minimere en kostnadsfunksjon for den, og et korreksjonsledd som fimksjon av filterkoeflisientenes energi. Utjevneren omfatter en koeffisientgenerator som svar på korrigeringsleddet. En spesiell utførelse beregner et overført symbol fra en mottatt prøve som fimksjon av nytteforholdet SINR av den mottatte prøve. Den mottatte prøve blir kvantisert og avbildet til et område av et gitter som ligger over konstellasjonen for det overførte symbol. Området kan tilsvare en symbolestimatverdi eller kan behandles ytterhgere for å oppnå en slik verdi.
NO20050863A 2002-07-18 2005-02-17 Hybrid signalutjevning ved tilbakekopling NO20050863L (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US10/199,158 US7035329B2 (en) 2002-07-18 2002-07-18 Soft slicer in a hybrid decision feedback equalizer
US10/199,159 US7046726B2 (en) 2002-07-18 2002-07-18 Method and apparatus for hybrid decision feedback equalization
PCT/US2003/022594 WO2004010665A2 (en) 2002-07-18 2003-07-18 Method and apparatus for hybrid decision feedback equalization

Publications (1)

Publication Number Publication Date
NO20050863L true NO20050863L (no) 2005-02-17

Family

ID=30772526

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20050863A NO20050863L (no) 2002-07-18 2005-02-17 Hybrid signalutjevning ved tilbakekopling

Country Status (15)

Country Link
EP (5) EP2254294A3 (no)
JP (5) JP4373330B2 (no)
KR (1) KR101013628B1 (no)
CN (1) CN100583853C (no)
AT (3) ATE506792T1 (no)
AU (1) AU2003256623C1 (no)
BR (1) BRPI0312747B1 (no)
CA (1) CA2493106C (no)
DE (2) DE60336863D1 (no)
ES (1) ES2365730T3 (no)
IL (2) IL165868A0 (no)
MX (1) MXPA05000707A (no)
NO (1) NO20050863L (no)
RU (2) RU2328081C2 (no)
WO (1) WO2004010665A2 (no)

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US7522663B2 (en) * 2005-03-10 2009-04-21 Stmicroelectronics, Inc. Burst error limiting feedback equalizer system and method for multidimensional modulation systems
US8218615B2 (en) * 2005-03-29 2012-07-10 Qualcomm Incorporated Method and apparatus for block-wise decision-feedback equalization for wireless communication
US8098722B2 (en) * 2005-03-29 2012-01-17 Qualcomm Incorporated Method and apparatus for equalization control
US8615035B2 (en) 2005-03-29 2013-12-24 Qualcomm Incorporated Method and apparatus for block-wise decision-feedback equalization for wireless communication
CN1845539B (zh) * 2005-04-08 2010-12-29 上海奇普科技有限公司 一种具有重叠结构的时域自适应均衡器
ATE449475T1 (de) * 2005-08-02 2009-12-15 Alcatel Lucent Empfänger eines optischen signals
US7590197B2 (en) 2005-12-20 2009-09-15 Research In Motion Limited Correction circuit for improving performance in a channel decoder
DE602005009235D1 (de) * 2005-12-20 2008-10-02 Research In Motion Ltd Korrekturschaltung zur Funktionsverbesserung in einem Kanaldekoder
US7826523B2 (en) * 2006-03-31 2010-11-02 Intel Corporation Effective adaptive filtering techniques
US8116364B2 (en) * 2007-04-18 2012-02-14 Mediatek Inc. Selective slicing equalizer
KR101096769B1 (ko) 2009-12-31 2011-12-21 한국산업기술대학교산학협력단 Ｄｔｖ 방송 시스템 환경에서 동일 채널 중계기를 위한 다중 레벨 상관 ｌｍｓ 기반의 채널 등화 방법 및 장치
RU2465725C1 (ru) * 2011-04-21 2012-10-27 Открытое акционерное общество "Концерн "Созвездие" Широкополосная система радиосвязи кв диапазона
US8913901B2 (en) * 2012-02-20 2014-12-16 Tyco Electronics Subsea Communications Llc System and method for blind equalization and carrier phase recovery in a quadrature amplitude modulated system
GB2503073B (en) * 2013-03-27 2014-04-23 Imagination Tech Ltd Efficient tracking of decision-feedback equaliser coefficients
RU2558609C2 (ru) * 2013-06-18 2015-08-10 Федеральное государственное бюджетное учреждение науки Научно-исследовательский институт системных исследований Российской академии наук (НИИСИ РАН) Передатчик со следящей обратной связью
US9660842B2 (en) 2013-06-27 2017-05-23 Intel Corporation Low power equalizer and its training
DE102014201233B4 (de) * 2014-01-23 2023-12-14 Rohde & Schwarz GmbH & Co. Kommanditgesellschaft Entzerrungsfilter
US9768913B1 (en) * 2016-03-09 2017-09-19 Samsung Electronics Co., Ltd System and method for multiple input multiple output (MIMO) detection with soft slicer
CN108111182A (zh) * 2016-11-25 2018-06-01 晨星半导体股份有限公司 错误限制方法、错误限制器以及数字接收电路
US10135645B1 (en) * 2017-10-18 2018-11-20 Cisco Technology, Inc. Equalizer optimization for FEC-protected communication links
CN112166558A (zh) * 2018-05-18 2021-01-01 麦克姆技术解决方案控股有限公司 限幅器的动态星座适应
DE102018208210A1 (de) * 2018-05-24 2019-11-28 Siemens Aktiengesellschaft Einrichtung und Verfahren zum Ermitteln eines Zeitversatzes zwischen zwei Zeitbasen
KR102192377B1 (ko) * 2018-12-05 2020-12-18 서울여자대학교 산학협력단 두개악안면영상에서의 자동 치아 분리방법 및 시스템
CN110138696A (zh) * 2019-05-28 2019-08-16 科大讯飞股份有限公司 信道均衡方法及装置
CN111131101B (zh) * 2019-12-28 2022-02-08 芯动微电子科技(珠海)有限公司 一种反馈均衡电路
CN116187064B (zh) * 2023-02-14 2024-03-12 中国科学院国家空间科学中心 一种连续信号时间序列二阶导数的数值仿真方法

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JP3269933B2 (ja) * 1995-03-20 2002-04-02 富士通株式会社 キャリア再生回路
JP3660068B2 (ja) * 1996-09-12 2005-06-15 株式会社ルネサステクノロジ 位相比較器
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Also Published As

Publication number Publication date
EP1956783A1 (en) 2008-08-13
EP2254293A2 (en) 2010-11-24
JP4902696B2 (ja) 2012-03-21
ATE506792T1 (de) 2011-05-15
JP2005533457A (ja) 2005-11-04
ATE527792T1 (de) 2011-10-15
BR0312747A (pt) 2007-06-26
DE60336863D1 (de) 2011-06-01
EP2254294A2 (en) 2010-11-24
JP5855716B2 (ja) 2016-02-09
JP5694444B2 (ja) 2015-04-01
EP2254295B1 (en) 2011-10-05
WO2004010665A2 (en) 2004-01-29
RU2005104433A (ru) 2005-09-20
CA2493106C (en) 2014-11-25
ATE507639T1 (de) 2011-05-15
CN1669282A (zh) 2005-09-14
JP4373330B2 (ja) 2009-11-25
WO2004010665A3 (en) 2004-06-17
AU2003256623A1 (en) 2004-02-09
MXPA05000707A (es) 2005-04-08
JP2012029305A (ja) 2012-02-09
JP2009268120A (ja) 2009-11-12
AU2003256623C1 (en) 2009-05-28
EP2254294A3 (en) 2010-12-08
JP5405541B2 (ja) 2014-02-05
EP1525727B1 (en) 2011-04-27
DE60336903D1 (de) 2011-06-09
EP1525727A2 (en) 2005-04-27
AU2003256623B2 (en) 2008-12-04
CN100583853C (zh) 2010-01-20
KR20050019861A (ko) 2005-03-03
RU2407197C2 (ru) 2010-12-20
EP2254293A3 (en) 2010-12-08
EP1956783B1 (en) 2011-04-20
EP2254295A1 (en) 2010-11-24
ES2365730T3 (es) 2011-10-10
IL202168A (en) 2010-12-30
IL165868A0 (en) 2006-01-15
BRPI0312747B1 (pt) 2016-11-22
CA2493106A1 (en) 2004-01-29
JP2015008491A (ja) 2015-01-15
RU2328081C2 (ru) 2008-06-27
KR101013628B1 (ko) 2011-02-10
RU2005120491A (ru) 2007-01-20
JP2013243680A (ja) 2013-12-05

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