WO2008000880A1 - Procédé et système de transmission numérique de bande large à travers des réseaux moyenne et haute tensions - Google Patents

Procédé et système de transmission numérique de bande large à travers des réseaux moyenne et haute tensions Download PDF

Info

Publication number
WO2008000880A1
WO2008000880A1 PCT/ES2007/070106 ES2007070106W WO2008000880A1 WO 2008000880 A1 WO2008000880 A1 WO 2008000880A1 ES 2007070106 W ES2007070106 W ES 2007070106W WO 2008000880 A1 WO2008000880 A1 WO 2008000880A1
Authority
WO
WIPO (PCT)
Prior art keywords
broadband
transmission
digital
modulation
frequency band
Prior art date
Application number
PCT/ES2007/070106
Other languages
English (en)
Spanish (es)
Inventor
José Francisco COMABELLA LÓPEZ
Original Assignee
Endesa Network Factory, S.L.
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 Endesa Network Factory, S.L. filed Critical Endesa Network Factory, S.L.
Publication of WO2008000880A1 publication Critical patent/WO2008000880A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/54—Systems for transmission via power distribution lines
    • 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
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5408—Methods of transmitting or receiving signals via power distribution lines using protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2203/00—Indexing scheme relating to line transmission systems
    • H04B2203/54—Aspects of powerline communications not already covered by H04B3/54 and its subgroups
    • H04B2203/5404—Methods of transmitting or receiving signals via power distribution lines
    • H04B2203/5416—Methods of transmitting or receiving signals via power distribution lines by adding signals to the wave form of the power source

Definitions

  • the present invention relates to a method and digital broadband transmission system using high and medium voltage networks as a transmission channel and applying modern broadband modulation techniques that achieve much higher speed rates than current equipment.
  • the band allocated specifically for communication on high voltage lines is between 40 and 500 kHz and is divided into 4 kHz channels.
  • the modulations used must work in channels that are very affected by noise and be spectrally effective in maintaining the 4 kHz channel.
  • a BLU (Single Side Band) modulation scheme is used, which is a "very simple" modulation - in terms of information transmission capacity. It is used, for example, to modulate a basic telephone channel (3,400 Hz) on which voice and / or data is transmitted using a standard analog modem for telephone band.
  • the process of the invention serves in an optimal way to achieve communications on high and medium voltage power lines with speed rates widely exceeding 64 kbits / s by
  • the invention will use the same frequency band for the data transmission as the one used so far - understood between 40 and 500 kHz.
  • the invention proposes the use of a broadband modulation, typically an OFDM modulation of hundreds of carriers modulated in QAM (quadrature amplitude modulation), requiring high transmission powers.
  • a broadband modulation typically an OFDM modulation of hundreds of carriers modulated in QAM (quadrature amplitude modulation)
  • QAM quadrature amplitude modulation
  • the system of the invention proposes to implement in the network that a series of nodes of broadband data exchange is treated, each of them being constituted by an IP protocol interface, a MODEM of broadband that works in the expected frequency band (40 - 500 kHz), as well as a signal adapter in both amplitude and impedance in the entire frequency band of 40 - 500 kHz.
  • Figure 1 shows a scheme of the system of the invention where two nodes that communicate with each other are represented.
  • the method of the invention serves to transmit data over the high and medium voltage network in broadband in cooperation with the use of modulations of the OFDM type or the like. It comprises the transmission of the information in IP packets with the use of the frequency band between 40 and 500 kHz in cooperation with a broadband modulation and increase in the emission power, and with the logical implementation of a dynamic interference manager and of an equalizer of the proposed band.
  • the dynamic spectral channel bandwidth manager works analogously to others existing on other equipment. telecommunications: it creates mechanisms for living with other adjacent own systems - frequently speaking - so that they can function at the same time without creating interference between them. This dynamic management system will allow to take advantage of the entire capacity of the channel (high and medium voltage power lines) in the face of dynamic changes in its information transmission capacity
  • the system (1) of the invention comprises the configuration of nodes (2) of access to the network (3) of medium or high voltage to establish data communication by carrier wave at high speed, obtaining speed ratios much higher than 64 kbits / s
  • Each of the nodes (2) is constituted by an input / output interface (4) that supports IP protocols, and associated with a broadband MODEM (5) with OFDM modulation or similar.
  • the node incorporates a signal and impedance adapter (6) that performs the signal amplification in the entire band (40-500 kHz) and not only in one or more of the 4 kHz channels as the existing equipment, completing the node with the elements (7) of physical connection to the network (3).
  • the MODEMs of the origin and destination nodes could be replaced respectively by a modulator and a demodulator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

Cette invention concerne un procédé et un système de transmission numérique de bande large dans des réseaux moyenne et haute tensions. Le procédé susmentionné comprend la transmission des données par modulation numérique dans la bande de fréquences comprise entre 40 et 500 KHz; la transmission des informations par paquets IP par modulation numérique de la bande large avec plusieurs porteuses; l'augmentation de la puissance d'émission; et la gestion dynamique du spectre des interférences avec des systèmes de porteuses numériques, des systèmes analogiques déjà installés et des noeuds propres adjacents; et l'égalisation de toute la bande.
PCT/ES2007/070106 2006-06-28 2007-05-30 Procédé et système de transmission numérique de bande large à travers des réseaux moyenne et haute tensions WO2008000880A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200601743A ES2326009B1 (es) 2006-06-28 2006-06-28 Procedimiento y sistema de transmision digital de banda ancha a traves de las redes de alta y media tension.
ESP200601743 2006-06-28

Publications (1)

Publication Number Publication Date
WO2008000880A1 true WO2008000880A1 (fr) 2008-01-03

Family

ID=38845167

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2007/070106 WO2008000880A1 (fr) 2006-06-28 2007-05-30 Procédé et système de transmission numérique de bande large à travers des réseaux moyenne et haute tensions

Country Status (2)

Country Link
ES (1) ES2326009B1 (fr)
WO (1) WO2008000880A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1011235A2 (fr) * 1998-12-15 2000-06-21 Nortel Networks Corporation Réception de signaux multiporteurs sur lignes d'alimentation
EP1014640A2 (fr) * 1998-12-22 2000-06-28 Nortel Networks Corporation Transmission multiporteuse sur lignes d'alimentation
US20060049693A1 (en) * 2004-09-08 2006-03-09 Satius, Inc. Apparatus and method for transmitting digital data over various communication media

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1011235A2 (fr) * 1998-12-15 2000-06-21 Nortel Networks Corporation Réception de signaux multiporteurs sur lignes d'alimentation
EP1014640A2 (fr) * 1998-12-22 2000-06-28 Nortel Networks Corporation Transmission multiporteuse sur lignes d'alimentation
US20060049693A1 (en) * 2004-09-08 2006-03-09 Satius, Inc. Apparatus and method for transmitting digital data over various communication media

Also Published As

Publication number Publication date
ES2326009B1 (es) 2010-06-25
ES2326009A1 (es) 2009-09-28

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