MX2007005453A - Igualador adaptable con un generador de mascara de derivaciones activas de doble modo y una unidad de control de amplitud de senal de referencia piloto. - Google Patents

Igualador adaptable con un generador de mascara de derivaciones activas de doble modo y una unidad de control de amplitud de senal de referencia piloto.

Info

Publication number
MX2007005453A
MX2007005453A MX2007005453A MX2007005453A MX2007005453A MX 2007005453 A MX2007005453 A MX 2007005453A MX 2007005453 A MX2007005453 A MX 2007005453A MX 2007005453 A MX2007005453 A MX 2007005453A MX 2007005453 A MX2007005453 A MX 2007005453A
Authority
MX
Mexico
Prior art keywords
equalizer
mask
active taps
tap
update unit
Prior art date
Application number
MX2007005453A
Other languages
English (en)
Inventor
Bin Lin
Alpaslan Demir
Philip J Pietraski
Gregory S Sternberg
Rui Yang
Mihaela Beluri
Jung Lin Pan
Original Assignee
Interdigital Tech Corp
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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of MX2007005453A publication Critical patent/MX2007005453A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • 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
    • H04L25/03038—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception with a non-recursive structure
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/30—Time-delay networks
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/159—Applications of delay lines not covered by the preceding subgroups
    • 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
    • H04B1/76—Pilot transmitters or receivers for control of transmission or for equalising
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • 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
    • 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
    • H04L2025/03509—Tapped delay lines fractionally spaced
    • 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
    • H04L2025/03535—Variable structures
    • H04L2025/03547—Switching between time domain structures
    • 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
    • H04L2025/03535—Variable structures
    • H04L2025/03547—Switching between time domain structures
    • H04L2025/03566—Switching between time domain structures between different tapped delay line structures
    • H04L2025/03585—Modifying the length
    • 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
    • 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
    • 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
    • H04L2025/03681—Control of adaptation
    • H04L2025/03687—Control of adaptation of step size
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/003—Correction of carrier offset at baseband only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0024—Carrier regulation at the receiver end
    • H04L2027/0026—Correction of carrier offset
    • H04L2027/0038—Correction of carrier offset using an equaliser
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/0014—Carrier regulation
    • H04L2027/0044—Control loops for carrier regulation
    • H04L2027/0063—Elements of loops
    • H04L2027/0065—Frequency error detectors

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Filters That Use Time-Delay Elements (AREA)

Abstract

Se describe un igualador adaptable que incluye un filtro de igualador y un generador de coeficiente de derivacion usado para procesar un flujo de datos de muestra derivado de una pluralidad de senales recibidas. El generador de coeficientes de derivacion incluye una unidad de actualizacion de derivacion de igualador, un estimador cuadratico normal vectorial, un generador de mascara de derivaciones activas, un conmutador y una unidad de referencia de amplitud piloto usada para minimizar el intervalo dinamico del filtro del igualador. Es usado un vector mascara dinamico para enmascarar las derivaciones activas generadas por la unidad de actualizacion de derivacion del igualador cuando una senal no enmascarada producida por el filtro del igualador es seleccionada por el conmutador para generar una senal de error alimentada a la unidad de actualizacion de derivacion del igualador. Se usa un vector mascara fijo para enmascarar las derivaciones activas generadas por la unidad de actualizacion de derivacion del igualador cuando una senal enmascarada producida por el filtro del igualador sea usada para generar la senal de error.
MX2007005453A 2004-11-05 2005-11-02 Igualador adaptable con un generador de mascara de derivaciones activas de doble modo y una unidad de control de amplitud de senal de referencia piloto. MX2007005453A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62518804P 2004-11-05 2004-11-05
PCT/US2005/039635 WO2006052596A2 (en) 2004-11-05 2005-11-02 Adaptive equalizer with a dual-mode active taps mask generator and a pilot reference signal amplitude control unit

Publications (1)

Publication Number Publication Date
MX2007005453A true MX2007005453A (es) 2007-05-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2007005453A MX2007005453A (es) 2004-11-05 2005-11-02 Igualador adaptable con un generador de mascara de derivaciones activas de doble modo y una unidad de control de amplitud de senal de referencia piloto.

Country Status (10)

Country Link
US (3) US7570690B2 (es)
EP (1) EP1807932A4 (es)
JP (1) JP4512138B2 (es)
KR (2) KR100888413B1 (es)
CN (1) CN101053153A (es)
CA (1) CA2588262A1 (es)
MX (1) MX2007005453A (es)
NO (1) NO20072859L (es)
TW (3) TWI296475B (es)
WO (1) WO2006052596A2 (es)

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Also Published As

Publication number Publication date
JP2008519572A (ja) 2008-06-05
TW200711395A (en) 2007-03-16
KR100888413B1 (ko) 2009-03-13
TWI419520B (zh) 2013-12-11
WO2006052596A2 (en) 2006-05-18
US8265130B2 (en) 2012-09-11
TWI296475B (en) 2008-05-01
NO20072859L (no) 2007-06-05
EP1807932A2 (en) 2007-07-18
CN101053153A (zh) 2007-10-10
TW200625889A (en) 2006-07-16
WO2006052596A3 (en) 2006-12-14
US20090290630A1 (en) 2009-11-26
TW200947981A (en) 2009-11-16
US7570690B2 (en) 2009-08-04
CA2588262A1 (en) 2006-05-18
US20120314755A1 (en) 2012-12-13
KR20070068474A (ko) 2007-06-29
EP1807932A4 (en) 2009-09-02
KR20070086972A (ko) 2007-08-27
JP4512138B2 (ja) 2010-07-28
US20060171451A1 (en) 2006-08-03

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