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WO2003041378A1 - Circuit pour reduire la puissance dissipee en mode de donnees de circuits d'interface de ligne d'abonne a large bande permettant la transmission de la voix et de donnees integree (xdsl) - Google Patents

Circuit pour reduire la puissance dissipee en mode de donnees de circuits d'interface de ligne d'abonne a large bande permettant la transmission de la voix et de donnees integree (xdsl) Download PDF

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Publication number
WO2003041378A1
WO2003041378A1 PCT/DE2002/004113 DE0204113W WO03041378A1 WO 2003041378 A1 WO2003041378 A1 WO 2003041378A1 DE 0204113 W DE0204113 W DE 0204113W WO 03041378 A1 WO03041378 A1 WO 03041378A1
Authority
WO
WIPO (PCT)
Prior art keywords
signals
signal driver
signal
line
transmitting device
Prior art date
Application number
PCT/DE2002/004113
Other languages
German (de)
English (en)
Inventor
Paul Kunisch
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2003041378A1 publication Critical patent/WO2003041378A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/005—Interface circuits for subscriber lines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
    • H04M11/062—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors using different frequency bands for speech and other data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/005—Interface circuits for subscriber lines
    • H04M3/007—Access interface units for simultaneous transmission of speech and data, e.g. digital subscriber line [DSL] access interface units

Definitions

  • a cosine oscillation the frequency of which is arranged, for example, in the middle of the corresponding frequency band, can be used to transmit data in a specific frequency band.
  • each bit or bit sequence to be transmitted (e.g. using a phase star) can be assigned a cosine oscillation of a certain amplitude and phase.
  • the respectively transmitted bit or the respectively transmitted bit sequence can be determined in the receiving device from the amplitude and phase of the respectively received cosine oscillation.
  • the power supplies for the POTS or ISDN voice data transmission and for the DSL data transmission are independent of one another and can therefore be designed in such a way that the total power loss that occurs is relatively low.
  • DSP digital signal processor
  • the operating voltage provided in the terminal exchange for the corresponding line drivers is relatively high, since a DC voltage for the POTS subscriber supply and line monitoring or ISDN voice data transmission, and an additional, dynamically controlled voltage for the DSL data transmission can be overlaid.
  • the relatively high operating voltage leads to a relatively high power loss.
  • ADSL full rate transmission (DSL transmission with full bandwidth; 1.1 MHz) can then generally not be carried out, but only ADSL.Lite transmission (DSL transmission with half bandwidth; 552 kHz) , since this requires less dynamic voltage control than for an ADSL full-rate transmission (and the power loss is accordingly lower).
  • the object of the invention is to provide a novel transmission device and a novel data transmission method.
  • a transmitting device from which different signals can be transmitted to a receiving device via one and the same line using different frequency ranges, the transmitting device having a first signal driver device, which is activated when under Signals are sent to the receiving device using a first frequency range, and a second signal driver device which is activated when, in addition to the signals sent using the first frequency range, signals are to be sent to the receiving device using a second frequency range.
  • the signals transmitted using the first frequency range may e.g. are DSL data signals, and for the signals transmitted using the second frequency range e.g. for telephone voice signals or telephone signaling signals (e.g. telephone call signals).
  • the first or the second signal driver device is activated (and the other signal driver device is deactivated).
  • the level of the first supply voltage made available to the first signal driver device is advantageous less than the level of the second supply voltage supplied to the second signal driver device.
  • the level of the supply voltage supplied to the first and / or second signal driver device is selected as a function of the length of the line, and / or its impedance. This enables the power loss to be reduced even further.
  • Figure 1 is a schematic representation of a data communication system with transceivers according to the present invention
  • Figure 2 is a schematic representation of the frequency bands used by a transceiver according to the invention for POTS or ISDN and for DSL data transmission;
  • Figure 3 is a schematic representation of a phase star used for DSL data transmission.
  • FIG. 4 shows a schematic detailed illustration of a transmitting / receiving device used in the data communication system according to FIG. 1.
  • FIG. 1 An example of a data communication system 1 according to the present invention is shown in FIG.
  • the data communication system 1 has a terminal exchange 11 (here: an electronic digital dialing system or EWSD) connected to a telephone network (here: the public telephone network 10).
  • a number of transmitting / receiving devices 15 are provided in the terminal exchange 11, which are used for
  • Subscriber lines 12, e.g. twisted-pair lines are each connected to transceivers 14, which are arranged in subscriber end connection devices 13.
  • the twisted pair lines each consist of two wires 12a, 12b. Differential or symmetrical signals are used for data transmission via the respective wire pairs.
  • the data communication between the transmitting / receiving devices 15 provided in the terminal exchange 11 and the transmitting / receiving devices 14 of the subscriber end connection devices 13 takes place by means of POTS (Piain Old) Telephone Service) or ISDN (Integrated Services Digital Network) voice data transmission, as well as by means of xDSL (x Digital Subscriber Line) data transmission.
  • POTS Peain Old
  • ISDN Integrated Services Digital Network
  • xDSL x Digital Subscriber Line
  • a plurality of frequency bands (bins) ⁇ a, 6b, 6c, 6d which lie above a frequency fl are used in the xDSL data transmission.
  • the frequency range 5 below the frequency fl is used for conventional POTS or ISDN voice data transmission.
  • fl is approximately 25 kHz
  • ISDN data transmission approximately 130 kHz.
  • a QAM procedure For DSL data transmission between the corresponding central office transceiver 15 and subscriber transceiver 14 (and vice versa), e.g. a QAM procedure can be used.
  • a QAM procedure For each frequency band 6a, 6b, 6c, 6d, 6e, cosine oscillations are used, the frequencies of which are e.g. can each lie in the middle of the corresponding frequency band 6a, 6b, 6c, 6d, 6e.
  • the phase star 16 shown in FIG. 3 can be used to encode the data to be transmitted in a cosine oscillation.
  • This has a number of concentric circles, each of which is assigned a cosine vibration amplitude of a certain height AI, A2, A3.
  • AI cosine vibration amplitude
  • Each of the above-mentioned angles ⁇ l, ⁇ 2, ⁇ 3 and ⁇ 4 is synchronized with a corresponding phase shift of a cosine oscillation with respect to one in the terminal exchange transceiver 15 and the subscriber transceiver 14 assigned to the current clock (or with respect to a pilot tone emitted by the respective transceiver 14, 15).
  • the data transmission within the respective frequency band 6a, 6b, 6c, 6d can then e.g. with the help of a cosine oscillation, whose amplitude and phase shift each one of the above.
  • Bits or bit sequences is identified. From the amplitude and phase shift of the respectively received cosine oscillation in the respective transceiver 14, 15 - with the help of one of the above.
  • Phase star 16 corresponding phase star - the respectively transmitted bit or the respectively transmitted bit sequence can be determined.
  • FIG. 4 shows a schematic detailed illustration of the transmitting / receiving device 14 provided in the subscriber end connection device 13.
  • the end exchange 11 provided in the end switching center 11 and connected to the subscriber transmitting / receiving device 14 is constructed correspondingly similarly to that in FIG 4 shown subscriber transceiver 14.
  • broadband SLIC Subscriber Line Interface Circuit
  • DSP digital signal processor
  • the output stage of the broadband subscriber line interface circuit 2 is designed in duplicate. She points For example, four (instead of, for example, two) signal amplification devices or line drivers 4a, 4b, 4c, 4d (eg corresponding broadband operational amplifiers), of which, as will be explained in more detail below, either the two signal amplification devices 4a, 4d, or the two Signal amplification devices 4b, 4c apply the corresponding differential or symmetrical signals to the pair of TIP / RING connections.
  • a digital voice signal (“Voice *) and a digital data signal (“ Data 1 *) are combined in the digital signal processor DSP.
  • the voice signal can be, for example, a correspondingly converted output signal from a microphone of a telephone (ie a POTS or ISDN voice data signal), and the data signal can be a correspondingly converted output signal from a computer (ie a DSL data signal).
  • the digital voice / data signal is fed via a line 17 to the analog / digital conversion device 3, there into an analog one
  • Voice / data signal converted, and forwarded via a line 18 to an input of the interface circuit 2.
  • the voice / data signal is fed via a line 19 to the first signal amplification device 4a, via a line 20 to the second signal amplification device 4b, via a line 21 to the third signal amplification device 4c, and via a line 22 to the fourth signal amplification device 4d.
  • the control signal is fed to an inverter via a line 24, and from there to the release control input of the first signal amplification device 4a, and in a corresponding manner to a further inverter via a line 27, and from there to the release control input of the fourth signal amplification device 4d.
  • the logic low enable control signal is inverted by the inverters, so that a logic high control signal is present at the corresponding enable control inputs of the first and fourth signal amplification devices 4a, 4d, whereby the signal amplification devices 4a, 4d are activated.
  • the analog voice / data signal present on line 18 is activated by the first and fourth signal amplification devices 4a, 4d ( positive or negative) amplified, and output as an amplified differential output signal to a pair of output lines 28, 29.
  • the output line 28 is connected to an output of the first signal amplification device 4a, and the output line 29 is connected to an output of the fourth signal amplification device 4d.
  • the first capacitor 30 is connected via a line 32 to a line 33 connected to the TIP connection, and the second capacitor 31 via a line 34 to a line 35 connected to the RING connection.
  • the differential signal output by the first and fourth signal amplification devices 4a, 4d on the output lines 28, 29 is thus capacitively coupled into the wires 12a, 12b of the subscriber line 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

La présente invention concerne un procédé de transmission de données et un dispositif d'émission (14) conçu pour transmettre différents signaux à un dispositif de réception (15), par l'intermédiaire d'une seule et même ligne (12) et en utilisant différents domaines de fréquences (5, 6). Cette invention est caractérisée en ce que le dispositif d'émission (14) présente un premier dispositif pilote de signaux (4a), qui est activé lorsque des signaux sont envoyés au dispositif de réception (15) par utilisation d'un premier domaine de fréquences (6), et un second dispositif pilote de signaux (4b), qui est activé lorsque, outre les signaux envoyés par utilisation du premier domaine de fréquences (6), des signaux doivent être envoyés au dispositif de réception (15) par utilisation d'un second domaine de fréquences (5).
PCT/DE2002/004113 2001-11-08 2002-11-06 Circuit pour reduire la puissance dissipee en mode de donnees de circuits d'interface de ligne d'abonne a large bande permettant la transmission de la voix et de donnees integree (xdsl) WO2003041378A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001154936 DE10154936A1 (de) 2001-11-08 2001-11-08 Schaltungsanordnung zur Reduzierung der Verlustleistung im Datenbetrieb von Breitband-SLICs für die integrierte Sprach- und Datenübertragung (xDSL)
DE10154936.9 2001-11-08

Publications (1)

Publication Number Publication Date
WO2003041378A1 true WO2003041378A1 (fr) 2003-05-15

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PCT/DE2002/004113 WO2003041378A1 (fr) 2001-11-08 2002-11-06 Circuit pour reduire la puissance dissipee en mode de donnees de circuits d'interface de ligne d'abonne a large bande permettant la transmission de la voix et de donnees integree (xdsl)

Country Status (2)

Country Link
DE (1) DE10154936A1 (fr)
WO (1) WO2003041378A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11059297B2 (en) 2017-05-21 2021-07-13 Hewlett-Packard Development Company, L.P. Integrated circuit device for a replaceable printer component

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0883269A1 (fr) * 1997-06-02 1998-12-09 Alcatel Système multiporteur de télécommunication avec moyen de réduction de la puissance
WO2000010308A2 (fr) * 1998-08-14 2000-02-24 Siemens Aktiengesellschaft Procede pour optimiser les caracteristiques de transmission et reduire la puissance dissipee d'une partie a seuil eleve integree dans un circuit de raccordement d'abonnes permettant la connexion d'une ligne de raccordement d'abonnes
EP1011250A1 (fr) * 1998-12-18 2000-06-21 Lucent Technologies Inc. Système et Méthode pour l'allocation de tension de overhead dans la transmission des signaux de type POTS et xDSL
US6212263B1 (en) * 1998-09-30 2001-04-03 Compaq Computer Corporation 5 volts single power supply ADSL analog front end design

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6246725B1 (en) * 1997-06-02 2001-06-12 Alcatel Multi-carrier telecommunication system with power adaptation means
US6028486A (en) * 1997-10-07 2000-02-22 Telefonaktiebolaget Lm Ericsson Method and apparatus for reducing power dissipation in multi-carrier amplifiers
US5898342A (en) * 1998-01-20 1999-04-27 Advanced Micro Devices Power amplifier arrangement and method for data signal interface
SE518796C2 (sv) * 2000-04-07 2002-11-19 Ericsson Telefon Ab L M Förfarande och anordning för minimering av effektförlusten i en linjedrivare

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0883269A1 (fr) * 1997-06-02 1998-12-09 Alcatel Système multiporteur de télécommunication avec moyen de réduction de la puissance
WO2000010308A2 (fr) * 1998-08-14 2000-02-24 Siemens Aktiengesellschaft Procede pour optimiser les caracteristiques de transmission et reduire la puissance dissipee d'une partie a seuil eleve integree dans un circuit de raccordement d'abonnes permettant la connexion d'une ligne de raccordement d'abonnes
US6212263B1 (en) * 1998-09-30 2001-04-03 Compaq Computer Corporation 5 volts single power supply ADSL analog front end design
EP1011250A1 (fr) * 1998-12-18 2000-06-21 Lucent Technologies Inc. Système et Méthode pour l'allocation de tension de overhead dans la transmission des signaux de type POTS et xDSL

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZOJER B ET AL: "A 150 V subscriber line interface circuit (SLIC) in a new BiCMOS/DMOS-technology", BIPOLAR/BICMOS CIRCUITS AND TECHNOLOGY MEETING, 1996., PROCEEDINGS OF THE 1996 MINNEAPOLIS, MN, USA 29 SEPT.-1 OCT. 1996, NEW YORK, NY, USA,IEEE, US, 29 September 1996 (1996-09-29), pages 93 - 96, XP010200287, ISBN: 0-7803-3516-3 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11059297B2 (en) 2017-05-21 2021-07-13 Hewlett-Packard Development Company, L.P. Integrated circuit device for a replaceable printer component

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Publication number Publication date
DE10154936A1 (de) 2003-05-28

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