KR960016303A - 데이타 통신 장비용 하이브리드 등화기 장치 - Google Patents

데이타 통신 장비용 하이브리드 등화기 장치 Download PDF

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KR960016303A
KR960016303A KR1019950035510A KR19950035510A KR960016303A KR 960016303 A KR960016303 A KR 960016303A KR 1019950035510 A KR1019950035510 A KR 1019950035510A KR 19950035510 A KR19950035510 A KR 19950035510A KR 960016303 A KR960016303 A KR 960016303A
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dfe
signal
receiver
communication equipment
inter
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KR1019950035510A
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KR100346530B1 (ko
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진더 왕
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죠셉 제이. 오팰라치
에이티 앤드 티 코포레이션
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    • 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
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/497—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response systems
    • H04L25/4975—Correlative coding using Tomlinson precoding, Harashima precoding, Trellis precoding or GPRS
    • 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
    • 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
    • H04L25/03343—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/38—Synchronous or start-stop systems, e.g. for Baudot code
    • H04L25/40—Transmitting circuits; Receiving circuits
    • H04L25/49—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems
    • H04L25/497—Transmitting circuits; Receiving circuits using code conversion at the transmitter; using predistortion; using insertion of idle bits for obtaining a desired frequency spectrum; using three or more amplitude levels ; Baseband coding techniques specific to data transmission systems by correlative coding, e.g. partial response coding or echo modulation coding transmitters and receivers for partial response 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
    • 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
    • H04L2025/03503—Tapped delay lines time-recursive as a combination of feedback and prediction filters
    • 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
    • H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
    • H04L2025/03802—Signalling on the reverse channel
    • H04L2025/03808—Transmission of equaliser coefficients

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)

Abstract

최적의 DFE 실행에 접근하는 결정 피드백 등화기(DFE) 구조의 하이브리드 타입이 기재된다. 상기 하이브리드 DFE는 부호간 간섭 DFE(ISI-DFE) 및 잡음 예측 DFE(NP-DFE) 둘다를 구비한다. 특히 적응 피드 포워드 필터 섹션에 부호간 간섭(IS1)예측 필터 및 잡음 예측(NP)필터가 뒤따른다. 대응하는 전송기는 C(z)로 표시된 하이브리드 DFE 구조의 최적의 계수치를 이용하는 프리코더를 사용한다. 특히 C(z)는 공지된 바와 같이 표시 I(z) 및 N(z)가 ISI-DFE 및 NP-DFE 각각을 사용한 후 나타나는 계수치를 표현하는 (1+I(z))(1+N(z))-1과 동일하다.

Description

데이타 통신 장비용 하이브리드 등화기 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제3도는 본 발명의 원리를 실현한 통신 시스템의 블럭도.

Claims (2)

  1. 피드백 신호를 제공하는 프리코딩된 데이타 부호의 시퀀스에 응답하는 필터 수단과; 데이타 신호와 수신기에 전송하기 의한 프리코딩된 데이타 부호의 상기 시퀀스를 제공하는 피드백 신호 사이 차이의 신호 표본에 응답하는 매퍼를 구비하는 데이타 통신 장비용 장치에 있어서, 상기 필터 수단은 I(z)가 수신기로부터 전송된 한 세트의 부호간 간섭 결정 피드백 등화기 계수와 동일하고 N(z) 가 상기 수신기로부터 전송된 한 세트의 잡음 예측 결정 피드백 등화기 계수와 동일한 (1+I(z))(1+N(z))-1과 같은 응답 함수를 가지는 것을 특징으로 하는 데이타 통신 장비용 장치.
  2. 수신기로부터 한 세트의 부호간 간섭 결정 피드백 등화기 계수 I(z)를 수신하고; 상기 수신기로부터 전송된 한 세트의 잡음 예측 결정 피드백 등화기 계수 N(z)를 수신하며; 프리코딩된 데이타 신호가 (1+I(z))(1+N(z))-1의 함수인 수신기로의 전송을 위해 프리코딩된 데이타 신호를 제공하도록 데이타 신호를 프리코딩하는 단계를 포함하는 것을 특징으로 하는 데이타 통신 장비용 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019950035510A 1994-10-13 1995-10-12 데이타통신장비용하이브리드등화기장치 KR100346530B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/322,878 US5604769A (en) 1994-10-13 1994-10-13 Hybrid equalizer arrangement for use in data communications equipment
US322878 1994-10-13
US94-322878 1994-10-13

Publications (2)

Publication Number Publication Date
KR960016303A true KR960016303A (ko) 1996-05-22
KR100346530B1 KR100346530B1 (ko) 2002-12-06

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KR1019950035510A KR100346530B1 (ko) 1994-10-13 1995-10-12 데이타통신장비용하이브리드등화기장치

Country Status (9)

Country Link
US (1) US5604769A (ko)
EP (1) EP0707401B1 (ko)
JP (1) JP3195529B2 (ko)
KR (1) KR100346530B1 (ko)
CN (1) CN1123978A (ko)
CA (1) CA2158185C (ko)
DE (1) DE69530739T2 (ko)
IL (1) IL115588A (ko)
MX (1) MX9504289A (ko)

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IL115588A (en) 1999-08-17
IL115588A0 (en) 1996-01-19
EP0707401B1 (en) 2003-05-14
KR100346530B1 (ko) 2002-12-06
EP0707401A3 (en) 1998-01-28
EP0707401A2 (en) 1996-04-17
US5604769A (en) 1997-02-18
MX9504289A (es) 1997-01-31
JP3195529B2 (ja) 2001-08-06
JPH08274724A (ja) 1996-10-18
CA2158185A1 (en) 1996-04-14
CN1123978A (zh) 1996-06-05
DE69530739T2 (de) 2004-03-18
DE69530739D1 (de) 2003-06-18
CA2158185C (en) 1999-09-07

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