WO2005101655A8 - Advanced digital receiver - Google Patents

Advanced digital receiver

Info

Publication number
WO2005101655A8
WO2005101655A8 PCT/US2005/012158 US2005012158W WO2005101655A8 WO 2005101655 A8 WO2005101655 A8 WO 2005101655A8 US 2005012158 W US2005012158 W US 2005012158W WO 2005101655 A8 WO2005101655 A8 WO 2005101655A8
Authority
WO
WIPO (PCT)
Prior art keywords
feedforward filter
digital receiver
equalizer
advanced digital
filter taps
Prior art date
Application number
PCT/US2005/012158
Other languages
French (fr)
Other versions
WO2005101655A1 (en
Inventor
Jingsong Xia
Shidong Chen
Richard W Citta
Gopalan Krishnamurthy
Scott M Lopresto
David A Willming
Xiaojun Yang
Jilian Zhu
Original Assignee
Micronas Semiconductors Inc
Jingsong Xia
Shidong Chen
Richard W Citta
Gopalan Krishnamurthy
Scott M Lopresto
David A Willming
Xiaojun Yang
Jilian Zhu
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 Micronas Semiconductors Inc, Jingsong Xia, Shidong Chen, Richard W Citta, Gopalan Krishnamurthy, Scott M Lopresto, David A Willming, Xiaojun Yang, Jilian Zhu filed Critical Micronas Semiconductors Inc
Priority to CN2005800122830A priority Critical patent/CN1998136B/en
Priority to CA002560785A priority patent/CA2560785A1/en
Priority to US11/547,816 priority patent/US7995648B2/en
Priority to MXPA06011688A priority patent/MXPA06011688A/en
Publication of WO2005101655A1 publication Critical patent/WO2005101655A1/en
Publication of WO2005101655A8 publication Critical patent/WO2005101655A8/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H03D1/02—Details
    • H03D1/06—Modifications of demodulators to reduce distortion, e.g. by negative feedback
    • 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
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D1/00—Demodulation of amplitude-modulated oscillations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/06—Demodulator circuits; Receiver circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-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
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • H04L2025/0342—QAM
    • 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
    • H04L25/0202—Channel estimation
    • H04L25/0212—Channel estimation of impulse response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H04L7/0054—Detection of the synchronisation error by features other than the received signal transition
    • H04L7/0062—Detection of the synchronisation error by features other than the received signal transition detection of error based on data decision error, e.g. Mueller type detection

Abstract

A digital receiver for processing a signal received from a channel includes a digital demodulator and an equalizer coupled to the digital demodulator. The equalizer includes a feedforward filter and a decision feedback equalizer (DFE), wherein the feedforward filter includes a plurality of feedforward filter taps. Coefficients are associated with the plurality of feedforward filter taps and the values of all of the coefficients associated with the plurality of feedforward filter taps are dynamically determined.
PCT/US2005/012158 2004-04-09 2005-04-08 Advanced digital receiver WO2005101655A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN2005800122830A CN1998136B (en) 2004-04-09 2005-04-08 Advanced digital receiver
CA002560785A CA2560785A1 (en) 2004-04-09 2005-04-08 Advanced digital receiver
US11/547,816 US7995648B2 (en) 2004-04-09 2005-04-08 Advanced digital receiver
MXPA06011688A MXPA06011688A (en) 2004-04-09 2005-04-08 Advanced digital receiver.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US56108504P 2004-04-09 2004-04-09
US60/561,085 2004-04-09
US60102604P 2004-08-12 2004-08-12
US60/601,026 2004-08-12

Publications (2)

Publication Number Publication Date
WO2005101655A1 WO2005101655A1 (en) 2005-10-27
WO2005101655A8 true WO2005101655A8 (en) 2006-12-07

Family

ID=35150307

Family Applications (9)

Application Number Title Priority Date Filing Date
PCT/US2005/011907 WO2005101653A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling a feedforward filter of an equalizer
PCT/US2005/012158 WO2005101655A1 (en) 2004-04-09 2005-04-08 Advanced digital receiver
PCT/US2005/011963 WO2005101777A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling a digital demodulator coupled to an equalizer
PCT/US2005/011909 WO2005099399A2 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling sampling frequency and sampling phase of a sampling device
PCT/US2005/012152 WO2005099407A2 (en) 2004-04-09 2005-04-08 Apparatus for and method of developing equalized values from samples of a signal received from a channel
PCT/US2005/012125 WO2005101656A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling the operation of an equalizer
PCT/US2005/011912 WO2005101654A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling a feedforward filter of an equalizer
PCT/US2005/011906 WO2005101652A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling a feedforward filter of an equalizer
PCT/US2005/012056 WO2005101778A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling a sampling frequency of a sampling device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
PCT/US2005/011907 WO2005101653A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling a feedforward filter of an equalizer

Family Applications After (7)

Application Number Title Priority Date Filing Date
PCT/US2005/011963 WO2005101777A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling a digital demodulator coupled to an equalizer
PCT/US2005/011909 WO2005099399A2 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling sampling frequency and sampling phase of a sampling device
PCT/US2005/012152 WO2005099407A2 (en) 2004-04-09 2005-04-08 Apparatus for and method of developing equalized values from samples of a signal received from a channel
PCT/US2005/012125 WO2005101656A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling the operation of an equalizer
PCT/US2005/011912 WO2005101654A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling a feedforward filter of an equalizer
PCT/US2005/011906 WO2005101652A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling a feedforward filter of an equalizer
PCT/US2005/012056 WO2005101778A1 (en) 2004-04-09 2005-04-08 Apparatus for and method of controlling a sampling frequency of a sampling device

Country Status (6)

Country Link
US (8) US8611408B2 (en)
KR (6) KR101170482B1 (en)
CN (9) CN1998133B (en)
CA (9) CA2560734A1 (en)
MX (9) MXPA06011668A (en)
WO (9) WO2005101653A1 (en)

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