WO2003009552A3 - Apparatus comprising an equaliser and a trellis decoder - Google Patents

Apparatus comprising an equaliser and a trellis decoder Download PDF

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Publication number
WO2003009552A3
WO2003009552A3 PCT/IE2002/000105 IE0200105W WO03009552A3 WO 2003009552 A3 WO2003009552 A3 WO 2003009552A3 IE 0200105 W IE0200105 W IE 0200105W WO 03009552 A3 WO03009552 A3 WO 03009552A3
Authority
WO
WIPO (PCT)
Prior art keywords
isi
equaliser
noise
trellis decoder
receiver
Prior art date
Application number
PCT/IE2002/000105
Other languages
French (fr)
Other versions
WO2003009552A2 (en
Inventor
Philip Curran
Stephen Bates
Vincent Berg
Original Assignee
Massana Res Ltd
Philip Curran
Stephen Bates
Vincent Berg
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 Massana Res Ltd, Philip Curran, Stephen Bates, Vincent Berg filed Critical Massana Res Ltd
Priority to AU2002319874A priority Critical patent/AU2002319874A1/en
Publication of WO2003009552A2 publication Critical patent/WO2003009552A2/en
Publication of WO2003009552A3 publication Critical patent/WO2003009552A3/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056—Systems characterized by the type of code used
    • H04L1/0059—Convolutional codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end
    • H04L1/0054—Maximum-likelihood or sequential decoding, e.g. Viterbi, Fano, ZJ algorithms
    • 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
    • H04L2025/03477—Tapped delay lines not time-recursive
    • 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
    • H04L2025/03592—Adaptation methods
    • H04L2025/03598—Algorithms
    • H04L2025/03611—Iterative algorithms
    • H04L2025/03617—Time recursive algorithms

Abstract

A receiver (1) has an equaliser (2, 4. 5) which introduces inter symbol interferance (ISI) in a controlled manner and a low pass filters to reduce noise. The ISI is introduced and the noise is reduced by a filter (4) in an adaptation path. A trellis decoder (3) of the receiver (1) removes the ISI to avoid propagation error. It does this in front end modules (20), outside of its critical path. There is a better decoder performance because noise is smaller.
PCT/IE2002/000105 2001-07-18 2002-07-17 Apparatus comprising an equaliser and a trellis decoder WO2003009552A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002319874A AU2002319874A1 (en) 2001-07-18 2002-07-17 Apparatus comprising an equaliser and a trellis decoder

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US30586101P 2001-07-18 2001-07-18
IE20010673 2001-07-18
US60/305,861 2001-07-18
IE010673 2001-07-18

Publications (2)

Publication Number Publication Date
WO2003009552A2 WO2003009552A2 (en) 2003-01-30
WO2003009552A3 true WO2003009552A3 (en) 2003-11-06

Family

ID=27665874

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IE2002/000105 WO2003009552A2 (en) 2001-07-18 2002-07-17 Apparatus comprising an equaliser and a trellis decoder

Country Status (3)

Country Link
AU (1) AU2002319874A1 (en)
IE (1) IES20020594A2 (en)
WO (1) WO2003009552A2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0631414A1 (en) * 1993-06-23 1994-12-28 Koninklijke Philips Electronics N.V. Adaptive equalizer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0631414A1 (en) * 1993-06-23 1994-12-28 Koninklijke Philips Electronics N.V. Adaptive equalizer

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HARATSCH E F ; AZADET K: "A low complexity joint equalizer and decoder for 1000Base-T Gigabit Ethernet", PISCATAWAY, IEEE, 2000, NJ, USA, pages 465 - 468, XP002230023 *
HATAMIAN M ET AL: "Design considerations for gigabit Ethernet 1000Base-T twisted pair transceivers", CUSTOM INTEGRATED CIRCUITS CONFERENCE, 1998. PROCEEDINGS OF THE IEEE 1998 SANTA CLARA, CA, USA 11-14 MAY 1998, NEW YORK, NY, USA,IEEE, US, 11 May 1998 (1998-05-11), pages 335 - 342, XP010293978, ISBN: 0-7803-4292-5 *
KARATSCH E F ; AZADET K: "A 1-Gb/s joint equalizer and trellis decoder for 1000BASE-T Gigabit Ethernet", IEEE J. SOLID-STATE CIRCUITS (USA), IEEE JOURNAL OF SOLID-STATE CIRCUITS, IEEE, vol. 36, no. 3, April 2001 (2001-04-01), USA, pages 374 - 384, XP002230024 *

Also Published As

Publication number Publication date
IE20020595A1 (en) 2003-02-19
WO2003009552A2 (en) 2003-01-30
AU2002319874A1 (en) 2003-03-03
IES20020594A2 (en) 2003-03-05

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