WO1998036610A2 - Teilnehmerseitige netzabschlusseinheit eines anschlussleitungsnetzes und verfahren zum betreiben einer netzabschlusseinheit - Google Patents
Teilnehmerseitige netzabschlusseinheit eines anschlussleitungsnetzes und verfahren zum betreiben einer netzabschlusseinheit Download PDFInfo
- Publication number
- WO1998036610A2 WO1998036610A2 PCT/DE1998/000198 DE9800198W WO9836610A2 WO 1998036610 A2 WO1998036610 A2 WO 1998036610A2 DE 9800198 W DE9800198 W DE 9800198W WO 9836610 A2 WO9836610 A2 WO 9836610A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ppp
- interface
- data
- subscriber
- channel
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 61
- 230000011664 signaling Effects 0.000 claims abstract description 47
- 101001122730 Paramecium tetraurelia Serine/threonine-protein phosphatase PP2A catalytic subunit 1 Proteins 0.000 claims 1
- SJWPTBFNZAZFSH-UHFFFAOYSA-N pmpp Chemical compound C1CCSC2=NC=NC3=C2N=CN3CCCN2C(=O)N(C)C(=O)C1=C2 SJWPTBFNZAZFSH-UHFFFAOYSA-N 0.000 claims 1
- 238000012546 transfer Methods 0.000 abstract description 2
- 108091006146 Channels Proteins 0.000 description 102
- 238000011161 development Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/04—Selecting arrangements for multiplex systems for time-division multiplexing
- H04Q11/0428—Integrated services digital network, i.e. systems for transmission of different types of digitised signals, e.g. speech, data, telecentral, television signals
- H04Q11/0435—Details
- H04Q11/0471—Terminal access circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
- H04L2012/6424—Access arrangements
- H04L2012/6427—Subscriber Access Module; Concentrator; Group equipment
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
- H04L2012/6472—Internet
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/64—Hybrid switching systems
- H04L12/6418—Hybrid transport
- H04L2012/6475—N-ISDN, Public Switched Telephone Network [PSTN]
Definitions
- the invention relates to a subscriber-side network termination unit of a connecting line network with an interface for transmitting and receiving a transmission frame with a multiplicity of data channels including a signaling channel, with an interface for providing telecommunications short channel data channels for telecommunications applications and signaling channels as well as a telecommunications channel for these subscribers with an interface for subscriber-side provision of data channels for data applications.
- the invention relates to a method for operating such a subscriber-side network connection in a connecting line network.
- Modern telecommunications networks have digital access line networks in the subscriber access area which connect one or more local exchanges via subscriber lines and subscriber-side network connection units to subscriber terminals.
- Connection line networks were originally designed for the transmission of low-frequency information signals, such as, for example, in analogue telephony or when using narrowband devices.
- the bit rate transmitted in the access line network on the subscriber side is defined here, for example, for narrowband ISDN basic access in such a way that the longest occurring access lines can still be used.
- Said narrowband ISDN basic access which is also referred to as BA (from the English term "Basic Access"), has, apart from data rates of 16 kbit / s used for synchronization and echo suppression purposes, a data rate of 144 kbit / s , divided into a control channel called D-channel with 16 kbit / s and two as B-channels designated channels with 64 kbit / s each. Because of this dimensioning basis, a large part of the maximum reliably transferable bit rate, ie the maximum bandwidth in the area of the connecting line network with shorter connecting lines, remains unused.
- the damping measure for symmetrical double cores of copper connection lines which limits the range of the digital signal transmission, increases with the line length.
- connection line networks designed for narrowband services are consequently also suitable for the transmission of broadband services.
- methods have become established with which the existing copper lines in the connecting line network can be used for the transmission of digital information signals.
- a method for dividing the usable data rate of an ISDN BA of 144 kbit / sm is one with D- Channel designated control channel and optionally two user channels with 32 kbit / s each and a user channel with 64 kbit / s data rate, preferably intended for data applications, or four user channels with 32 kbit / s data rate each.
- this increases the number of applications, terminals or subscribers that can be connected to a line pair and a special network termination unit, the data rate available to an application is reduced compared to an ISDN BA or, in the most favorable case, remains the same.
- connection of data processing devices such as a computer or a LAN
- a connecting line network of a communication network is today mostly done for small businesses or private households via, a modem and a switched analog or digital connection or via an ISDN connection with a maximum achievable data rate of
- DE 196 25 385.3 which has not yet been published on the priority date of the present application
- a method for transmitting information signals in a connecting line network via subscriber lines is known, in which transmission parameters of the subscriber line are measured and settings are made on the exchange and subscriber side in accordance with the measurement results. These settings are, for example, the maximum bit rate that can be transmitted securely and, if appropriate, the transmission method.
- the bit rate and transmission method can be adapted adaptively to the individual line depending on the physical transmission parameters. This makes it possible to transmit several user channels, each with a bandwidth of 64 kbit / s, in addition to a D channel with a bandwidth of 16 kbit / s.
- the maximum number of user channels that can be carried depends on the bandwidth of the individual subscriber line configuration, in particular on the length of the subscriber line.
- Each of these time slots is either occupied with switching system data (CS data from the English language expression Circuit Switchmg) or with packet data (PS data from the English language expression Packet Switchmg), with all time slots not occupied with switching system data forming a remaining packet data Transport channel can be summarized
- a method for subscriber-side information transmission in a connection line network is described using an information transport frame that is divided into equally large time slots, at least some of these time slots being useful channel time slots, each of which is either equipped with a switching system.
- Data or with packet data is occupied and all user channel time slots not occupied with switching system data are combined to form a remaining packet data transport channel.
- a protocol discriminator is inserted into each time slot of the remaining packet data transport channel, which enables the data contained in one time slot of the remaining packet data transport channel to be uniquely assigned to a traffic type, so that a traffic-type-specific protocol evaluation can be carried out at the receiving end.
- a length information inserted per message can also be transmitted if necessary.
- Another variant of such a method provides for the transmission of messages of variable length not to occupy a time slot of the remaining packet data transport channel between two messages in the remaining packet data transport channel.
- a time slot of the information transport frame can also be used for frame control and a time slot for ISDN signaling, in which case these time slots provided for the transmission of control information are preferably within the - b -
- Information transport frame are arranged at defined points.
- the object of the invention is to specify a subscriber-side network termination unit of a connecting line network which adapts a connecting line network which provides a plurality of useful channels to subscriber applications in order to enable such a connecting line network to be used more flexibly for telecommunications applications and data applications.
- a method for operating such a network termination unit is to be specified.
- the invention defines a subscriber-side network termination unit of a connecting line network with a first interface provided by a connecting line interface controller for transmitting and receiving a connecting line network-side transmission and reception of a transmission frame containing a plurality of data channels including a signaling channel, with a second interface provided by a telecommunication interface controller for providing subscribers Telecommunication user data channels for telecommunication applications as well as a signaling channel assigned to these telecommunication useful data channels, and with a third interface provided by a data interface controller for the user-side provision of data channels for data applications.
- a method according to the invention for operating such a subscriber-side network termination unit provides that before the transmission of user data via the second interface or the third interface, signaling data associated with the user data is transmitted via the signaling channel of the interface provided by the telecommunications interface controller.
- a subscriber-side network termination unit which enables such a method to be carried out, but also reproduces an aspect of the invention independently of the mentioned method, a control device for releasing a data transmission via the data interface controller contains after signaling associated with this data transmission has taken place via the signaling channel of the second interface.
- the signaling channel of the second interface is used both as a signaling channel for the telecommunication useful data channels of the second interface and as a signaling channel for the user data channels of the third interface.
- This enables a simple mapping of the two subscriber-side interfaces to a single connection line-side interface with only one signaling channel, a signaling channel, namely that of the second interface, being available for each of the subscriber-side interfaces if necessary. Since a signaling channel is usually only required for a short time, namely during the signaling phase and signaling data is unproblematic with regard to delay times, one signaling channel is also sufficient for two interfaces.
- a further development of the method according to the invention provides that the data interface controller controls the transmission of signaling data associated with user data to be transmitted via the third interface via the signaling channel of the interface provided by the telecommunication interface controller before these user data are transmitted via the third interface.
- E Controlling the transmission of the signaling data provided for data of the third interface via the signaling channel of the second interface enables the data application, for example an computer or a LAN with connected computers, to be used only via a single interface. namely said third interface, which needs to access the subscriber-side network termination unit.
- An alternative embodiment of such a method requires that the data application access the subscriber-side network termination unit via the third interface and access at least via the signaling channel of the second interface. Access via the second interface can take place here, for example, by operating the data application as a communication terminal on the second interface.
- Another further development of the method according to the invention provides that data transmitted on the subscriber side to the telecommunication user data channels of the second interface are only transmitted in the data transmission line network transmission frame to certain data channels. This enables a fixed assignment of the user data channels of the second interface to data channels of the transmission frame of the first interface and thus a simple implementation between channels of this subscriber-side interface and channels of the connection line network interface. It is recommended that the signaling channel of the second interface is also permanently assigned to a data channel or a signaling channel of the transmission frame of the first interface.
- a modified embodiment of this aspect of the invention provides that data transmitted on the subscriber side in the data channels of the third interface are also transmitted in the data channels provided for the transmission of data on the subscriber side in the telecommunication useful data channels of the second interface, if in the transmission line network-side transmission frame for these Data insufficient, data channels provided for the transmission of data transmitted on the subscriber side in the telecommunication user data channels of the second interface are not free.
- data channels of the transmission frame of the first interface are also permanently assigned to the useful data channels of the second interface for a data application the transmission of user data of the third interface is used. Any data channel of the transmission frame of the first interface assigned to the signaling channel of the second interface must not be used for the transmission of user data of the third interface, since this signaling channel is also required for this third interface.
- a preferred embodiment of a subscriber-side network termination unit also provides that the second interface on the subscriber side provides two telecommunication user data channels for telecommunication applications. Especially if, in a further development of such an embodiment of a subscriber-side network termination, the two telecommunications - y -
- communication user data channels each have an data rate of 64 kbit / s and the signaling channel provided by the second interface has an data rate of 16 kbit / s, this interface corresponds to a standardized so-called So interface according to narrowband ISDN.
- a subscriber-side network termination unit provides that the first interface on the access line network side provides a transmission frame with a large number of data channels with a respective data rate of 64 kbit / s.
- the conversion of the data channels on the connection line network into the user data channels of the second interface on the subscriber side with the same transmission rate can thus be carried out very easily and is reduced to a purely physical conversion with a fixed channel assignment.
- FIG. M in the form of a schematic block diagram of a subscriber-side network termination unit according to the invention of a connecting line network contains the first interface eme (shown in the figure below) provided by a connecting line interface controller designated frame unit RE for transmitting and receiving a large number on the connecting line network side n of transmission frames containing data channels.
- the individual data channels of this transmission frame each have eme
- this network connection unit contains the second interface So provided by a telecommunication interface controller designated BA-E for the subscriber-side provision of telecommunication user data channels for telecommunications applications TEl, TE2, TE8.
- This second interface So corresponds to a standard ISDN interface of the type So with two B channels with a data rate of 64 kbit / s each and a D channel with a data rate of 16 kbit / s.
- this network termination unit contains the third interface IT, provided by a data interface controller designated as an internet unit, for providing data channels for data applications on the subscriber side.
- the data interface controller IE like a telecommunications application TE1, accesses the D channel of the second interface So.
- the telecommunication interface controller BA or the data interface controller IE and the connecting line interface controller RA there is a transition for converting data to be transmitted on the subscriber side and data to be transmitted on the connecting line network side.
- a bus system with a time slot structure is preferably provided.
- the signaling data assigned to the user data is transmitted via the signaling channel D channel via the interface So provided by the telecommunications interface controller BA.
- signaling data assigned to the user data is transmitted via the signaling channel D-channel of the second interface So provided by the telecommunications interface controller BA.
- the data interface control IE contains a control device for releasing data transmission via this data interface control IE after one of these data Signaling assigned to transmission via the signaling channel D channel of the second interface.
- a third, particularly preferred embodiment of this exemplary embodiment includes the two special features described above in each case for the first or the second embodiment of the exemplary embodiment. Features described below apply to all configurations.
- a special feature of the subscriber-side network termination described is the use of the signaling channel D-channel of the second interface So for the transmission of signaling data for the transmission of useful data both via the second interface So and the third interface IT.
- the telecommunications interface controller BA-Emheit converts the usage and signaling information of the transmission frame m into the So format or the usage and signaling formation of the second interface So into the transmission frame.
- the telecommunication interface controller BA can only access the first and second user data time slots of the transmission frame.
- the second interface So only functions of the physical layer, ie functions of layer 1 according to the OSI reference model, are carried out in the subscriber-side network termination unit.
- the second interface So all subscriber features of an ISDN-BA are available.
- a local data network LAN with multiple data applications or an internet terminal can be connected to the third interface IT, but also any other terminal with a constant data stream.
- the third interface IT can be, for example, a standardized Ethernet interface. Will one on the third
- the exemplary embodiment shown builds the data interface Control IE via the D channel of the second interface.
- the subsequent information transfer takes place between the data interface controller IE and the connecting line interface controller RE. Consequently, the signaling takes place via the second interface So, but not the data transmission.
- the data transmission is not limited to twice 64 kbit / s, but can be, for example, 12 * 64 kbit / s depending on the bandwidth of the first interface LS and consequently the bandwidth of the third interface IT.
- the data interface controller IE of the broadband third interface IT does not normally occupy the first and second user data time slots of the transmission frame of the first interface LS. This enables communication of telecommunication applications TE2, TE8 via the second interface So even when operating the third interface IT. If, however, the remaining user data time slots of the transmission frame of the first interface LS do not provide enough bandwidth for the need for the data transmission provided via the third interface IT, the data interface controller IE of the broadband third interface IT also accesses the first and / or second telecommunications applications not existing through any TE2, TE8 via the second interface So the user data time slot of the transmission frame blocked the first interface LS.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE59812788T DE59812788D1 (de) | 1997-02-17 | 1998-01-22 | Teilnehmerseitige netzabschlusseinheit eines anschlussleitungsnetzes und verfahren zum betreiben einer netzabschlusseinheit |
US09/367,578 US6560244B1 (en) | 1997-02-17 | 1998-01-22 | Subscriber network terminal of an access line network and method for operating a network connecting unit |
EP98909275A EP0960550B1 (de) | 1997-02-17 | 1998-01-22 | Teilnehmerseitige netzabschlusseinheit eines anschlussleitungsnetzes und verfahren zum betreiben einer netzabschlusseinheit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19706071 | 1997-02-17 | ||
DE19706071.4 | 1997-02-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1998036610A2 true WO1998036610A2 (de) | 1998-08-20 |
WO1998036610A3 WO1998036610A3 (de) | 1998-11-05 |
Family
ID=7820516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1998/000198 WO1998036610A2 (de) | 1997-02-17 | 1998-01-22 | Teilnehmerseitige netzabschlusseinheit eines anschlussleitungsnetzes und verfahren zum betreiben einer netzabschlusseinheit |
Country Status (6)
Country | Link |
---|---|
US (1) | US6560244B1 (de) |
EP (1) | EP0960550B1 (de) |
CN (1) | CN1126423C (de) |
DE (1) | DE59812788D1 (de) |
ES (1) | ES2238757T3 (de) |
WO (1) | WO1998036610A2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5974128A (en) * | 1996-11-27 | 1999-10-26 | Ameritech Corporation | Method and system for providing calling name identification requery |
EP0901300A1 (de) * | 1997-09-08 | 1999-03-10 | Siemens Aktiengesellschaft | Verfahren und Anordnung zum automatischen Konfigurieren einer Teilnehmereinrichtung mit Netzschnittstelleneinheiten |
WO2000044195A1 (fr) * | 1999-01-20 | 2000-07-27 | Fujitsu Limited | Procede de transmission numerique a grande vitesse utilisant une ligne d'abonne numerique, systeme de prise en charge abonne employe selon ce procede de transmission numerique a grande vitesse, dispositif de prise en charge cote terminaison abonne, et dispositif de prise en charge cote station de prise en charge |
CN112533160B (zh) * | 2020-11-30 | 2023-10-20 | 天宸星通(深圳)科技有限公司 | 一种监控卫星物联网终端运行状态的方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5229992A (en) * | 1991-03-28 | 1993-07-20 | Sprint International Communications Corp. | Fixed interval composite framing in integrated services networks |
EP0659007A2 (de) * | 1993-12-16 | 1995-06-21 | International Business Machines Corporation | System und Verfahren zur Kommunikation mit digitalen und analogen Geräten über eine einzige digitale Schnittstelle |
WO1998007292A1 (en) * | 1996-08-13 | 1998-02-19 | Advanced Micro Devices, Inc. | A combined analog and digital communications device |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3316470A1 (de) * | 1983-05-05 | 1984-11-08 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung fuer ein teilnehmeranschluss in einem diensteintegrierenden digitalnetz (isdn) |
JP2531242B2 (ja) * | 1988-06-07 | 1996-09-04 | 日本電気株式会社 | Isdn網終端装置 |
DE3923125A1 (de) * | 1989-07-13 | 1991-01-24 | Standard Elektrik Lorenz Ag | Universelle isdn-teilnehmeranschlussbaugruppe |
US5305312A (en) * | 1992-02-07 | 1994-04-19 | At&T Bell Laboratories | Apparatus for interfacing analog telephones and digital data terminals to an ISDN line |
EP0668706B1 (de) * | 1994-01-27 | 1999-04-14 | Siemens Schweiz AG | Netzabschlussgerät |
AU692201B2 (en) * | 1994-02-17 | 1998-06-04 | Alcatel N.V. | Network termination unit |
CA2148384C (en) * | 1994-06-27 | 2003-03-18 | Charles Clifford Hallock | Methods for performing intelligent network services with an isdn network terminator located at a subscriber's premise |
US5708663A (en) * | 1996-04-22 | 1998-01-13 | Adtran, Inc. | ISDN terminal adapter for use with external modem and employing software-based serial communication framing for ISDN `D` channel signaling |
US6023473A (en) * | 1996-07-25 | 2000-02-08 | Telebit Corporation | Application programming interface for modem and ISDN processing |
-
1998
- 1998-01-22 CN CN98802574A patent/CN1126423C/zh not_active Expired - Fee Related
- 1998-01-22 DE DE59812788T patent/DE59812788D1/de not_active Expired - Fee Related
- 1998-01-22 ES ES98909275T patent/ES2238757T3/es not_active Expired - Lifetime
- 1998-01-22 US US09/367,578 patent/US6560244B1/en not_active Expired - Fee Related
- 1998-01-22 EP EP98909275A patent/EP0960550B1/de not_active Expired - Lifetime
- 1998-01-22 WO PCT/DE1998/000198 patent/WO1998036610A2/de active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5229992A (en) * | 1991-03-28 | 1993-07-20 | Sprint International Communications Corp. | Fixed interval composite framing in integrated services networks |
EP0659007A2 (de) * | 1993-12-16 | 1995-06-21 | International Business Machines Corporation | System und Verfahren zur Kommunikation mit digitalen und analogen Geräten über eine einzige digitale Schnittstelle |
WO1998007292A1 (en) * | 1996-08-13 | 1998-02-19 | Advanced Micro Devices, Inc. | A combined analog and digital communications device |
Non-Patent Citations (1)
Title |
---|
HUBER M N ET AL: "MODELLING OF A MULTI-QUEUE POLLING SYSTEM WITH ARBITRARY SERVER INTERRUPTS FOR THE IDLE-SLOT-CONCATENATION PACKET SWITCHING PRINCIPLE IN A HYBRID CS/PS NODE" PROCEEDINGS OF THE TWELFTH INTERNATIONAL TELETRAFFIC CONGRESS (ITC-12), Bd. 1, 1. - 8. Juni 1988, Seiten 521-528, XP000279785 TORINO in der Anmeldung erwähnt * |
Also Published As
Publication number | Publication date |
---|---|
US6560244B1 (en) | 2003-05-06 |
ES2238757T3 (es) | 2005-09-01 |
WO1998036610A3 (de) | 1998-11-05 |
EP0960550A2 (de) | 1999-12-01 |
CN1247685A (zh) | 2000-03-15 |
DE59812788D1 (de) | 2005-06-16 |
CN1126423C (zh) | 2003-10-29 |
EP0960550B1 (de) | 2005-05-11 |
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