WO2005096662A1 - Verfahren zur bereitstellung der funktionalität einer exchange termination-einheit und einer line termination-einheit in einem kommunikationsnetzwerk - Google Patents
Verfahren zur bereitstellung der funktionalität einer exchange termination-einheit und einer line termination-einheit in einem kommunikationsnetzwerk Download PDFInfo
- Publication number
- WO2005096662A1 WO2005096662A1 PCT/EP2005/002058 EP2005002058W WO2005096662A1 WO 2005096662 A1 WO2005096662 A1 WO 2005096662A1 EP 2005002058 W EP2005002058 W EP 2005002058W WO 2005096662 A1 WO2005096662 A1 WO 2005096662A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- termination unit
- isdn
- oriented
- time
- communication network
- Prior art date
Links
Classifications
-
- 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
- H04Q11/0442—Exchange access circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13196—Connection circuit/link/trunk/junction, bridge, router, gateway
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13202—Network termination [NT]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13203—Exchange termination [ET]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13204—Protocols
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13205—Primary rate access, PRI
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13209—ISDN
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/1329—Asynchronous transfer mode, ATM
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13348—Channel/line reservation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13349—Network management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
- H04Q2213/13389—LAN, internet
Definitions
- the invention relates to a method for providing the functionality of an exchange termination unit and a line termination unit in a communication network.
- the invention further relates to a communication network for exchanging information, which transmits the information on the subscriber side via at least one time-division-oriented subnetwork and on the transport side via at least one packet-oriented subnetwork.
- the information includes, for example, numerical data or voice data.
- the time division multiplex-oriented communication network is, for example, an ISDN data transmission network (Integrated Services Digital Network).
- the data are transmitted in different time slots according to a time-division multiplex method.
- a packet-oriented communication network is a network in which the information or data is transmitted in data packets.
- the packet-oriented communication network is, for example, a communication network that works according to the Internet protocol.
- Another example of a packet-oriented communication network is an ATM network (Asynchronous Transfer Mode), in which the data packets are referred to as cells.
- ETSI European Telecommunications Standards Institute
- ITU-T International Telecommunication Union - Telecommunications Standardization Sector
- OAM stands for the organization, administration and management of the communication network with a so-called Telecommunications Management Network (TMN), which includes, for example for ISDN, an Operations System (OS) that accesses the Q3 interface according to CCITT recommendation M.30 ,
- TTN Telecommunications Management Network
- OS Operations System
- DS primary rate access digital section
- NT Network Termination Unit
- V3 primary rate connection
- NT Network Termination Unit
- LT Line Termination unit
- ET Exchange Termination unit
- CCITT recommendation Q.542 and Peter Bocker ISDN - The integrated service digital communications network, 3rd edition, 1990, Springer-Verlag, Heidelberg, page 149 to 151 w with references to CCITT-E recommendations Q.511 and Q.512).
- time-multiplex-oriented communication networks and packet-oriented communication networks creates new problems, however, because such OAM tasks (organization, administration and management) have to be distributed between the two types of communication networks depending on the arrangement of the interface.
- so-called ISDN PRI interfaces interfaces with ISDN rimary rate interface
- the OAM mechanisms as described in the corresponding standards (G.962, ETS 300 233, ITU-T 1.411, 1.412, Q.152), could be adopted, which has an advantageous effect on the reusability of already used equipment and the reusability of known OAM processes would impact.
- the present invention is therefore based on the object of specifying a method and a communication network with which a “primary rate access.
- Digital Section "(DS)) such as the ISDN PRI's, can be monitored in an NGN environment while maintaining the existing OAM mechanisms.
- this above object is achieved by a method for providing the functionality of an exchange termination unit and a line termination unit in a communication network, which comprises at least one time-multiplex-oriented subnetwork on the subscriber side and at least one packet-oriented subnetwork on the transport side a gateway and a media gateway controller or a SIP server is arranged at the transport end of the time-division-oriented subnetwork, the functionality of the exchange termination unit and the line termination unit being arranged in the gateway and / or in the media gateway controller or in the SIP server can be implemented.
- a communication network for exchanging information, which transmits the information on the subscriber side via at least one time-division-oriented subnetwork and on the transport side via at least one packet-oriented sub-network, with a gateway at the end of the time-division multiplex-oriented subnetwork on the transport side and a media Gateway controller or a SIP server are arranged, the functionality of an exchange termination unit and a line termination unit being implemented in the gateway and / or em media gateway controller or in the SIP server.
- the gateway and / or the media gateway controller or the SIP server is thus equipped with the corresponding time-multiplex-oriented functional logic units (OAM funct ion and corresponding state machine), so that in the implemented exchange termination unit and the implemented line termination unit Functions for c Uber operation and / or for administration and / or for maintenance in the time-division-oriented subnetwork for the transmission of information within the entire, ie time-division-oriented subnetwork and packet-oriented subnetwork are realized.
- OAM funct ion and corresponding state machine time-multiplex-oriented functional logic units
- the functionality of the exchange termination unit in the media gateway controller (a so-called soft switch) and the functionality of the line termination unit in the gateway can be implemented, so that the exchange of signals between the gate-way and media gateway controller according to the gateway control protocol.
- a so-called soft switch a so-called soft switch
- the functionality of the line termination unit in the gateway can be implemented, so that the exchange of signals between the gate-way and media gateway controller according to the gateway control protocol.
- MGCP by defining new packages are possible.
- SIP-controlled gateways SIP: Session Initiated Proto— koll
- RRC Reguest for Comments
- the packet-oriented communication network can be implemented in accordance with the Internet protocol or in accordance with ATM or in accordance with the SIP specification.
- An ISDN network can be used for the time-multiplex-oriented communication network, which is still very important in terms of its distribution. Accordingly, the functions for operation, administration and maintenance can essentially be provided in accordance with the ETSI ETS 300 011 standard and / or the ITU-T G.962 standard and / or the ETSI ETS 300 233 standard, so that a comparatively simple and rapid implementation is made possible because the implementation uses known and already established mechanisms.
- FIG. 1 shows an ISDN primary multiplex interface model with a processing of a time slot TS0 according to the standard ETSI ETS 300 233 according to the prior art
- FIG. 2 shows a schematic illustration of a first packet-oriented communication network with ISDN primary rate access connections
- FIG. 3 shows a schematic illustration of a second packet-oriented communication network with ISDN primary rate access connections
- Figure 4 is a schematic representation of a pronounced ATM-heavy communication network.
- FIG. 1 shows a digital connection section DS (access digital section) with its limitations and the processing of the time slot TS0.
- the operating and maintenance functions support methods and information elements which are required for controlling the digital connection section by a logical switching center ET or a service network server (service node).
- a Sa5, a Sa ⁇ , an E and an A bit of a time slot TS0 are relevant for display and control.
- the bit structure of the time slot TSO and the multi-time frame structure are defined in accordance with the ITU-T G.704 standard.
- the A bit becomes the alarm status information between the service node and a customer telephone device TE (customer telephony end equipment) used. Only the A bit needs to be monitored and is transmitted transparently. All other control bits of the time slot TSO are to be transmitted transparently.
- FIG. 1 shows the elements of the digital connection section DS that use CRC methods 4, 6 (Cyclic Redundancy Check).
- the CRC-4 methods 4, 6 are implemented and used between the switching center ET and a network termination unit NT1 and between the network termination unit NTl and the customer telephone device TE. This is also known as option two according to the ITU-T G.962 standard.
- FIG. 1 also shows a line termination unit LT.
- V3 reference point (the so-called primary rate connection) between the line termination unit LT and the exchange ET.
- T reference point between the customer telephone device TE and the network termination unit NT1.
- the following table shows the signals that are exchanged between the T reference point and the digital connection section DS under the normal operating conditions and faults specified in the ETS 300 011 standard:
- Normal time frames These are time frames without error displays or test loop requests generated by the switching center ET or the customer telephone device TE, an A bit with the value one or zero not being relevant for the digital connection section DS.
- Time frames These are time frames which, in addition to the normal time frames in the Sa6 bits, contain error display signals which have been generated in the network termination unit NT1 and have been transmitted to the switching center ET.
- the Sa6 bits can contain test loop requests that have been transmitted from the switching center ET to the digital connection section DS.
- the Sa5 bit is also used to indicate the direction and to display the test loop.
- CRC-4 process The CRC procedure is used to protect against defective frames (framing) and error performance monitoring. This includes the multi-time frame procedures that are defined in the ITU-T G.704 standard.
- the digital connection section DS provides the means for transmitting display elements and. for recording fault cases at the T reference point intersections and at the V3 reference point interface and to support test procedures.
- the following functions are supported by the exchange ET in the interaction of network termination NT1 and line termination LT:
- Test loops Test loop 1 (loopback), transparent test loop in the line termination device LT or in the exchange-side network gateway unit CO-IWF, test loop 2, transparent test loop in the network termination unit NT1 or in the customer-side network gateway unit CP-IWF, - errors within the digital Connection section DS Loss of the signal (LOS) or loss of frame alignment (LFA) on the line side of the network termination unit NTl or the customer-side gateway function CP-IWF (in the to the network termination unit NTl or the customer-side network transition unit CP-IWF from the line termination unit LT or yours exchange-side network gateway unit CO-IWF incoming signal, also called downstream signal), Loss of signal (LOS) on the line side of the line termination unit LT or the exchange-side network transition unit CO-IWF, operating voltage failure in the network termination unit NT1 or in the customer's network transition unit CP-IWF, AIS (alarm indication signal) on the line side of the network termination unit NTl or the
- the maintenance communication devices can be integrated as a telecommunications management network (T-MN) via relevant interfaces, such as the Q3 interface or an interface that supports S? NMP (Simple Network Management Protocol) (TCP / IP), so that the Control and monitoring mechanisms to control the data received from the. Grinding, evaluating performance, error messages and initiating appropriate measures. For this, the implementation of the state machine of the exchange conclusion ET according to table A.1 / G.962 is necessary.
- T-MN telecommunications management network
- relevant interfaces such as the Q3 interface or an interface that supports S? NMP (Simple Network Management Protocol) (TCP / IP)
- a second inventive arrangement is shown in Figure 3 schematically ', which differs from the first arrangement is that the functionality of the exchange termination ET in the media gateway controller is implemented GWC advantage.
- the Media Gateway Controller GWC equipped with the functionality of the Exchange Termination ET, can control all the Access Gateways AGW it controls with the full OAM functionality of the time-division-oriented network used, which is therefore also necessary for the time-division-oriented subnetwork to achieve the above monitor the benefits mentioned.
- the SLDM Subscriber Line Management Digital
- the Media Gateway Controller GWC would be replaced by a SIP server and the functionality of the exchange termination would be implemented accordingly in the SIP server.
- FIG. 4 shows a schematic overview of a possible embodiment for a communication network NW, which comprises a time-oriented subnetwork ISDN, which uses ISDN access interfaces ISDN-PRI (primary rate interface) at a gateway AGW for a packet-oriented subnetwork NGN are coupled.
- the packet-oriented subnetwork includes transmission methods according to ITU-T standard H.248 (Media Gateway Control Protocol), Ethernet (GigE or 2xFE) and ATM (STM-l / OC-3: 155 Mbps; STM-4 / OC- 12622 Mbps, E3 / DS-3: European Signal Level 3 / Digital Signal Level 3).
- the actual intended access interfaces for broadband access (BB access) and the packet-oriented through-signaling of the information to a packet-oriented subscriber-side network termination device IAD (IAD: Integrated Access Device) are provided at the gateway AGW.
- IAD packet-oriented subscriber-side network termination device
- a management system EMK is provided which, due to the implementation of the LT and ET functionality in the access gateway AGW described above, carries out the conventional OAM mechanisms customary for the time-division-oriented subnetwork ISDN.
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05707647A EP1730988A1 (de) | 2004-03-27 | 2005-02-26 | Verfahren zur bereitstellung der funktionalität einer exchange termination-einheit und einer line termination-einheit in einem kommunikationsnetzwerk |
US10/594,347 US20070223485A1 (en) | 2004-03-27 | 2005-02-26 | Method for Providing Functionality of an Exchange Termination Unit and a Line Termination Unit in a Communication Network |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004015157A DE102004015157A1 (de) | 2004-03-27 | 2004-03-27 | Verfahren zur Bereitstellung der Funktionalität einer Exchange Termination-Einheit und einer Line Termination-Einheit in einem Kommunikationsnetzwerk |
DE102004015157.1 | 2004-03-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005096662A1 true WO2005096662A1 (de) | 2005-10-13 |
Family
ID=34961008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2005/002058 WO2005096662A1 (de) | 2004-03-27 | 2005-02-26 | Verfahren zur bereitstellung der funktionalität einer exchange termination-einheit und einer line termination-einheit in einem kommunikationsnetzwerk |
Country Status (5)
Country | Link |
---|---|
US (1) | US20070223485A1 (de) |
EP (1) | EP1730988A1 (de) |
CN (1) | CN1939084A (de) |
DE (1) | DE102004015157A1 (de) |
WO (1) | WO2005096662A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007041910A1 (fr) * | 2005-10-14 | 2007-04-19 | Huawei Technologies Co., Ltd. | Procede et systeme de transmission de donnees |
WO2007059676A1 (fr) * | 2005-11-22 | 2007-05-31 | Huawei Technologies Co., Ltd. | Procede et systeme pour la mise en oeuvre d'offre de ligne reseau |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI20002124A (fi) * | 2000-09-27 | 2002-03-28 | Nokia Corp | Kanavaominaisuuksien muuttaminen |
CN101796805B (zh) * | 2007-09-04 | 2014-12-17 | 富士通株式会社 | 接入网关及其应用方法 |
CA3101276C (en) * | 2018-05-25 | 2022-08-02 | University Of Johannesburg | System and method for real time prediction of water level and hazard level of a dam |
Citations (2)
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US20020057676A1 (en) * | 2000-10-26 | 2002-05-16 | Beni Cohen-Adiv | Method and system for communicating ISDN over ATM-based next generation access networks using primary rate interface |
WO2002082854A1 (de) * | 2001-04-04 | 2002-10-17 | Siemens Aktiengesellschaft | Verfahren zum übertragen von information sowie zugehörige netzübergangseinheiten |
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KR100206465B1 (ko) * | 1996-05-04 | 1999-07-01 | 윤종용 | 사설교환기의 종합정보통신망 접속장치 및 방법 |
AU2229597A (en) * | 1997-02-21 | 1998-09-09 | Telefonaktiebolaget Lm Ericsson (Publ) | Model for the layer 1 iso-osi protocol intended to handle a set of common hardware resources |
GB2330034A (en) * | 1997-10-01 | 1999-04-07 | Northern Telecom Ltd | A narrowband to broadband interface for a communications system |
US6614760B1 (en) * | 1998-04-10 | 2003-09-02 | Kabushiki Kaisha Toshiba | ATM transmission equipment |
DE19843625A1 (de) * | 1998-09-23 | 2000-03-30 | Siemens Ag | Verfahren zur Identifizierung einer, an einer Verbindung zwischen einem Kommunikationsendgerät und einer Vermittlungsanlage beteiligten Übergabeeinheit |
US6832254B1 (en) * | 1999-08-23 | 2004-12-14 | Nortel Networks Limited | Method and apparatus for associating an end-to-end call identifier with a connection in a multimedia packet network |
DE10063082A1 (de) * | 2000-12-18 | 2002-07-11 | Siemens Ag | Vorrichtung und Verfahren zum paketbasierten Anschluss von klassischen ISDN/PSTN-Teilnehmern an ein Vermittlungssystem |
US7002995B2 (en) * | 2001-06-14 | 2006-02-21 | At&T Corp. | Broadband network with enterprise wireless communication system for residential and business environment |
US20080002669A1 (en) * | 2001-09-14 | 2008-01-03 | O'brien Ray | Packet voice gateway |
US9332037B2 (en) * | 2002-03-27 | 2016-05-03 | Alcatel Lucent | Method and apparatus for redundant signaling links |
DE10255923A1 (de) * | 2002-11-29 | 2004-06-24 | Siemens Ag | Verfahren zur Intergration eines paketorientierten Netzwerks in ein Kommunikationssystem |
EP1509033B1 (de) * | 2003-08-19 | 2012-10-17 | Alcatel Lucent | Verfahren und Vorrichtung zum Verbinden von IP-Anschlüssen und PSTN-Anschlüssen |
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-
2004
- 2004-03-27 DE DE102004015157A patent/DE102004015157A1/de not_active Withdrawn
-
2005
- 2005-02-26 CN CNA2005800099092A patent/CN1939084A/zh active Pending
- 2005-02-26 US US10/594,347 patent/US20070223485A1/en not_active Abandoned
- 2005-02-26 EP EP05707647A patent/EP1730988A1/de not_active Withdrawn
- 2005-02-26 WO PCT/EP2005/002058 patent/WO2005096662A1/de not_active Application Discontinuation
Patent Citations (2)
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US20020057676A1 (en) * | 2000-10-26 | 2002-05-16 | Beni Cohen-Adiv | Method and system for communicating ISDN over ATM-based next generation access networks using primary rate interface |
WO2002082854A1 (de) * | 2001-04-04 | 2002-10-17 | Siemens Aktiengesellschaft | Verfahren zum übertragen von information sowie zugehörige netzübergangseinheiten |
Non-Patent Citations (1)
Title |
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"Digital sections and digital line systems; Access digital section for ISDN primary rate at 2048 kbit/s", ITU-T RECOMMENDATION G.962, March 1993 (1993-03-01), pages 1 - 55, XP002208184 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007041910A1 (fr) * | 2005-10-14 | 2007-04-19 | Huawei Technologies Co., Ltd. | Procede et systeme de transmission de donnees |
WO2007059676A1 (fr) * | 2005-11-22 | 2007-05-31 | Huawei Technologies Co., Ltd. | Procede et systeme pour la mise en oeuvre d'offre de ligne reseau |
Also Published As
Publication number | Publication date |
---|---|
CN1939084A (zh) | 2007-03-28 |
DE102004015157A1 (de) | 2005-10-20 |
US20070223485A1 (en) | 2007-09-27 |
EP1730988A1 (de) | 2006-12-13 |
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