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WO2002003741A1 - Procede pour representer une interface s0 situee au niveau d'une connexion eloignee - Google Patents

Procede pour representer une interface s0 situee au niveau d'une connexion eloignee Download PDF

Info

Publication number
WO2002003741A1
WO2002003741A1 PCT/EP2001/006989 EP0106989W WO0203741A1 WO 2002003741 A1 WO2002003741 A1 WO 2002003741A1 EP 0106989 W EP0106989 W EP 0106989W WO 0203741 A1 WO0203741 A1 WO 0203741A1
Authority
WO
WIPO (PCT)
Prior art keywords
interface
data
bits
network
module
Prior art date
Application number
PCT/EP2001/006989
Other languages
German (de)
English (en)
Inventor
Steffen Kessler
Mario Max
Original Assignee
Deutsche Telekom Ag
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 Deutsche Telekom Ag filed Critical Deutsche Telekom Ag
Publication of WO2002003741A1 publication Critical patent/WO2002003741A1/fr

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
    • H04Q11/045—Selection or connection testing arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13091—CLI, identification of calling line
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13092—Scanning of subscriber lines, monitoring
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13109—Initializing, personal profile
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13136—Collect call
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/1316—Service observation, testing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13166—Fault prevention
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13176—Common channel signaling, CCS7
    • 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
    • H04Q2213/13204—Protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13209—ISDN
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13299—Bus

Definitions

  • the invention is intended to give the customer an inexpensive way of being able to check his S 0 interface for a correct connection establishment.
  • connection set-up is transmitted from the customer's network termination (S 0 interface) to a central point in the ISDN network and monitoring for the connection set-up can be carried out there.
  • the functions for transmitting the data are carried out by a module which the customer inserts into his network termination. So then an incoming connection was added and from this moment, the C / I-bits (layer 1) and then the D-bits (layer 2 and layer 3) or Bi or B 2 bits transmitted to a central location.
  • the module works on an ISDN basic connection. As soon as a connection to the service, data transmission 64 kbit / s, is established by the network, the device accepts the connection and sends the D channel data or the status of the C / I bits in the corresponding B channel. In this way, monitoring is carried out by a central body. This allows an error to be identified in the D channel.
  • the billing of the check of an ISDN basic access could be done via a flat rate meter or a service number (e.g. 0180 ... or 0190 ).
  • the customer receives a decision aid in which area the error lies. This enables him to avoid costs because he does not have to blindly hire a service to determine that the error is outside the area of responsibility of the service concerned.
  • the interface implementation (block 1) consists of a PEB 2080, which converts the S 0 interface to an IOM interface. Furthermore, the interface implementation (block 1) consists of a PEB 2080, which converts the S 0 interface to an IOM interface. Furthermore, the interface implementation (block 1) consists of a PEB 2080, which converts the S 0 interface to an IOM interface. Furthermore, the interface implementation (block 1) consists of a PEB 2080, which converts the S 0 interface to an IOM interface. Furthermore, the
  • Block 2 is an ISDN communications controller (ICC).
  • ICC ISDN communications controller
  • the ICC is a PEB 2070 module, via which the entire communication control is handled and which sends the read data. It is controlled or configured by the microcontroller (block 4). The microcontroller controls the
  • Control and configuration by the microcontroller runs according to a predetermined program that is stored in a program memory (block 3).
  • FIG. 2 shows the program flow
  • the program sequence of establishing and closing a connection for the transmission of data to the central point comprises the following steps: After starting the program routine, the ISDN communications controller is initialized to the parameters required for transmitting data in the B channel.
  • a loop now follows, in which a query for received messages (e.g. SETUP etc.) is continuously run in the receive buffer of the ICC. If such a message is received, it is temporarily stored in the microcontroller. Certain information, e.g. B. which channel was occupied (BI or B2) or transmission sequence number and reception sequence number (I frame), saved in variables.
  • the received message is acknowledged with the necessary response. For this purpose, the individual bytes are written into the send buffer of the ICC and then sent out. This happens at the time when the connection is activated.
  • the readout logic is now activated by starting the interrupt control.
  • the flow chart for interrupt control is shown in FIG. 3. From the beginning of a new frame, the microcontroller is interrupted. It now reads the fourth octet of the IOM data frame (D and C / I bits) of the S 0 interface to be monitored via a parallel input. This is done for both the send and the receive direction. This data is cached in MikcrocontroUer and compared with the data from the previous run. First the C / I bits of the transmitting side and then those of the receiving side are compared. If a change can be identified here, the changed data are brought into a specific format and sent to the central point via the B channel.
  • the D bits of the transmitting and receiving side are brought into a defined different format and sent via the B channel.
  • the data format is selected so that one can differentiate between send data and receive data as well as C / I or D bits. The latter is achieved by inserting zero bits and positioning the 4 D bits in the octet of the B channel. During this time, the main program is in the query loop for new ones received
  • the program then controls the disconnection of the data connection up to the end of the program.
  • the module In order to be able to select the module at the So interface, certain information must first be transmitted to the central point (e.g. destination number, description of the fault).
  • the module can also transmit the call number to the customer (at the measuring point).
  • the central point in the network to which the data of the S 0 interface to be measured is transmitted, must enable the data to be converted to the remote So interface in a reverse manner, so that the So interface to be measured is mapped in the central point ,
  • the So interface to be measured can be identical to the So interface via which the module is selected.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Maintenance And Management Of Digital Transmission (AREA)
  • Communication Control (AREA)

Abstract

Les opérations de détermination de la cause de dérangements dans des connexions RNIS sont très coûteuses, et en particulier ce n'est qu'en présence des résultats de ces déterminations que l'on peut dire si c'est la terminaison du réseau ou le dispositif terminal qui présente une défaillance. Grâce à la présente invention, il est possible de transmettre les données d'une interface S0 à examiner à un autre point central du réseau pour qu'une surveillance puisse être réalisée à ce point central. Les fonctions acceptation de la communication, lecture et formation des données (bits C/I ou bits B, ou bien bits B1 ou B2) ainsi qu'initialisation, pour une transmission dans le canal B sont exécutées par un module qui est enfiché dans l'interface S0. La liaison entre le module et le point central du réseau RNIS peut être établie par le module ou bien, après transmission du numéro d'appel, par le point central. La transmission des données se fait sous une forme telle que l'interface S0 à examiner est représentée au point central. Ainsi, on peut effectuer une surveillance peu coûteuse pour déterminer des causes de défaillance.
PCT/EP2001/006989 2000-07-05 2001-06-21 Procede pour representer une interface s0 situee au niveau d'une connexion eloignee WO2002003741A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10033302.8 2000-07-05
DE2000133302 DE10033302A1 (de) 2000-07-05 2000-07-05 Verfahren zum Abbilden einer SO-Schnittstelle an einem entfernten Anschluss

Publications (1)

Publication Number Publication Date
WO2002003741A1 true WO2002003741A1 (fr) 2002-01-10

Family

ID=7648287

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/006989 WO2002003741A1 (fr) 2000-07-05 2001-06-21 Procede pour representer une interface s0 situee au niveau d'une connexion eloignee

Country Status (2)

Country Link
DE (1) DE10033302A1 (fr)
WO (1) WO2002003741A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965795A (en) * 1988-05-10 1990-10-23 Harris Corporation D channel monitor
EP0480826A1 (fr) * 1990-10-10 1992-04-15 France Telecom Equipement de test à distance du protocole sur l'interface S et T d'un équipement terminal RNIS
FR2691029A1 (fr) * 1992-05-05 1993-11-12 Cersem Sa Procédé d'analyse à distance de données d'un protocole, terminal d'abonné spécialisé et dispositif d'analyse distant correspondant.
EP0603692A1 (fr) * 1992-12-18 1994-06-29 Siemens Schweiz AG Poste de réponse pour tester automatiquement des terminaux liés à un réseau de télécommunications
WO1998009420A1 (fr) * 1996-08-27 1998-03-05 Siemens Schweiz Ag Procede de surveillance et de verification des raccordements d'un reseau rnis de telecommunication
US5903626A (en) * 1997-10-21 1999-05-11 Siemens Information And Communication Networks, Inc. Diagnostic device for troubleshooting remote digital feature phones

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4965795A (en) * 1988-05-10 1990-10-23 Harris Corporation D channel monitor
EP0480826A1 (fr) * 1990-10-10 1992-04-15 France Telecom Equipement de test à distance du protocole sur l'interface S et T d'un équipement terminal RNIS
FR2691029A1 (fr) * 1992-05-05 1993-11-12 Cersem Sa Procédé d'analyse à distance de données d'un protocole, terminal d'abonné spécialisé et dispositif d'analyse distant correspondant.
EP0603692A1 (fr) * 1992-12-18 1994-06-29 Siemens Schweiz AG Poste de réponse pour tester automatiquement des terminaux liés à un réseau de télécommunications
WO1998009420A1 (fr) * 1996-08-27 1998-03-05 Siemens Schweiz Ag Procede de surveillance et de verification des raccordements d'un reseau rnis de telecommunication
US5903626A (en) * 1997-10-21 1999-05-11 Siemens Information And Communication Networks, Inc. Diagnostic device for troubleshooting remote digital feature phones

Also Published As

Publication number Publication date
DE10033302A1 (de) 2002-02-21

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