MX9705953A - Sistema de comunicacion de multiples puntos a punto. - Google Patents

Sistema de comunicacion de multiples puntos a punto.

Info

Publication number
MX9705953A
MX9705953A MX9705953A MX9705953A MX9705953A MX 9705953 A MX9705953 A MX 9705953A MX 9705953 A MX9705953 A MX 9705953A MX 9705953 A MX9705953 A MX 9705953A MX 9705953 A MX9705953 A MX 9705953A
Authority
MX
Mexico
Prior art keywords
frequency bandwidth
head end
control data
downstream
telephony
Prior art date
Application number
MX9705953A
Other languages
English (en)
Inventor
Mark J Dapper
Michael J Geile
Terrance J Hill
Harold A Roberts
Brian D Anderson
Jeffrey Brede
Mark S Wadman
Robert J Kirscht
James J Herrmann
Original Assignee
Adc Telecommunications 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
Application filed by Adc Telecommunications Inc filed Critical Adc Telecommunications Inc
Publication of MX9705953A publication Critical patent/MX9705953A/es

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
    • H04L1/0057—Block codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/27—Arrangements for networking
    • H04B10/272—Star-type networks or tree-type networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0298—Wavelength-division multiplex systems with sub-carrier multiplexing [SCM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/14—Monitoring arrangements
    • 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
    • H04L1/0061—Error detection 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
    • H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
    • H04L1/203—Details of error rate determination, e.g. BER, FER or WER
    • 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
    • H04L1/24—Testing correct operation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area 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
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03866—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using scrambling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2614—Peak power aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2649—Demodulators
    • H04L27/265—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
    • H04L27/2652—Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators with polyphase implementation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2657—Carrier synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H04L27/2665—Fine synchronisation, e.g. by positioning the FFT window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/023—Multiplexing of multicarrier modulation signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/02—Channels characterised by the type of signal
    • H04L5/06—Channels characterised by the type of signal the signals being represented by different frequencies
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6118—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6156—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network
    • H04N21/6168—Network physical structure; Signal processing specially adapted to the upstream path of the transmission network involving cable transmission, e.g. using a cable modem
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/16—Analogue secrecy systems; Analogue subscription systems
    • H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
    • H04N7/17309—Transmission or handling of upstream communications
    • 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
    • H04L2001/0092—Error control systems characterised by the topology of the transmission link
    • H04L2001/0096—Channel splitting in point-to-point links
    • 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
    • H04L2027/0036—Correction of carrier offset using a recovered symbol clock
    • 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
    • H04L2027/0053—Closed loops
    • H04L2027/0057—Closed loops quadrature phase
    • 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
    • H04L2027/0067—Phase error detectors

Abstract

El sistema de comunicacion incluye una red de distribucion híbrida de fibra/coaxial. Un extremo cabezal permite la transmision corriente abajo de datos de telefonía y de control en la amplitud de banda de una primera frecuencia sobre al red de distribucion híbrida de fibra/coaxial, y la recepcion de datos de telefonía y de control corriente arriba en la amplitud de banda de una segunda frecuencia, sobre la red de distribucion híbrida de fibra/coaxial. El extremo cabezal incluye un modem multiportador de extremo cabezal par modular cuando menos informacion de telefonía corriente abajo en una pluralidad de portadores ortogonales en la amplitud de banda de la primera frecuencia, y para desmodular cuando menos informacion de telefonía corriente arriba, modulada en una pluralidad de portadores ortogonales en la amplitud de banda de la segunda frecuencia. La terminal de extremo cabezal también incluye un controlador conectado de manera operativa al modem multiportador de extremo cabeza, para controlar la transmision de la informacion de telefonía corriente abajo y de datos de control corriente abajo, y para controlar la recepcion de los datos de control corriente arriba y la informacion de telefonía corriente arriba. El sistema también incluye unidades de servicio, cada unidad de servicio conectada de manera operativa a la red de distribucion híbrida de fibra/coaxial, para la transmision corriente arriba de informacion de telefonía y de datos de control corriente arriba en la amplitud de banda de la segunda frecuencia, y para recibir los datos de control y la informacion de telefonía corriente abajo en la amplitud de banda de la primera frecuencia. Cada unidad de servicio incluye un modem multiportador de unidad de servicio para la modulacion de cuando menos la informacion de telefonía corriente arriba, en cuando menos un portador ortogonal en la terminal de extremo cabezal, a otro portador en la amplitud de banda de la segunda frecuencia, y para la desmodulacion de cuando menos la informacion de telefonía corriente abajo, modulada en cuando menos una banda de pluralidad de portadores ortogonales en la amplitud de banda de la primer frecuencia. Cada unidad de servicio también incluye un controlador conectado de manera operativa al modem multiportador de unidad de servicio para controlar la modulacion de, y la desmodulacion realizada por el modem multiportador de unidad de servicio. También se incluyen un método para inspeccionar canales de comunicacion, un método de antinodo distribuido para ajustar características de transmision para permitir la transmision de datos en un sistema de comunicacion de multiples puntos a punto, una técnica de filtro polifásico para proporcionar proteccion contra ingreso y un método de exploracion para identificar las bandas de frecuencia que se van a usar para la transmision de las unidades de servicio.
MX9705953A 1995-02-06 1996-02-06 Sistema de comunicacion de multiples puntos a punto. MX9705953A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US38465995A 1995-02-06 1995-02-06
US45731795A 1995-06-01 1995-06-01
PCT/US1996/001575 WO1996024989A2 (en) 1995-02-06 1996-02-06 Multi-point to point communication system

Publications (1)

Publication Number Publication Date
MX9705953A true MX9705953A (es) 1998-02-28

Family

ID=27010697

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9705953A MX9705953A (es) 1995-02-06 1996-02-06 Sistema de comunicacion de multiples puntos a punto.

Country Status (13)

Country Link
EP (2) EP0809898A2 (es)
JP (2) JP2986921B2 (es)
KR (1) KR100254067B1 (es)
CN (1) CN1086877C (es)
AU (1) AU703284B2 (es)
BR (1) BR9607031A (es)
CA (1) CA2211117C (es)
CZ (1) CZ289894B6 (es)
FI (15) FI120711B (es)
MX (1) MX9705953A (es)
NZ (1) NZ302973A (es)
TW (1) TW321809B (es)
WO (1) WO1996024989A2 (es)

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Also Published As

Publication number Publication date
KR19980701997A (ko) 1998-06-25
FI20116240A (fi) 2011-12-07
CZ289894B6 (cs) 2002-04-17
KR100254067B1 (ko) 2000-04-15
FI124458B (fi) 2014-09-15
FI20116237A (fi) 2011-12-07
CA2211117C (en) 2001-04-03
JPH10507051A (ja) 1998-07-07
FI20116236A (fi) 2011-12-07
AU703284B2 (en) 1999-03-25
FI124248B (fi) 2014-05-15
FI123210B (fi) 2012-12-31
FI124459B (fi) 2014-09-15
NZ302973A (en) 1998-08-26
FI20116215A (fi) 2011-12-01
FI973134A0 (fi) 1997-07-28
CN1086877C (zh) 2002-06-26
EP1229683A2 (en) 2002-08-07
FI20085830A (fi) 2008-09-05
FI20085996A (fi) 2008-10-21
FI20116235A (fi) 2011-12-07
CA2211117A1 (en) 1996-08-15
CN1180462A (zh) 1998-04-29
FI120898B (fi) 2010-04-15
FI20116214A (fi) 2011-12-01
FI20116241A (fi) 2011-12-07
FI124457B (fi) 2014-09-15
FI122856B (fi) 2012-08-15
WO1996024989A2 (en) 1996-08-15
FI122855B (fi) 2012-08-15
WO1996024989A3 (en) 1996-11-21
FI120711B (fi) 2010-01-29
BR9607031A (pt) 1997-11-04
FI973134A (fi) 1997-10-06
FI124510B (fi) 2014-09-30
TW321809B (es) 1997-12-01
JP2986921B2 (ja) 1999-12-06
FI20116242A (fi) 2011-12-07
JP2000049748A (ja) 2000-02-18
EP1229683A3 (en) 2002-11-06
FI123211B (fi) 2012-12-31
FI124511B (fi) 2014-09-30
FI124512B (fi) 2014-09-30
FI20085728A (fi) 2008-07-15
EP0809898A2 (en) 1997-12-03
FI123212B (fi) 2012-12-31
FI20116243A (fi) 2011-12-07
CZ248797A3 (en) 1997-12-17
FI20116238A (fi) 2011-12-07
AU4915896A (en) 1996-08-27
FI124509B (fi) 2014-09-30
FI20116239A (fi) 2011-12-07

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