WO1997043868A1 - Switching system with selection of broadband services via an intelligent network - Google Patents
Switching system with selection of broadband services via an intelligent network Download PDFInfo
- Publication number
- WO1997043868A1 WO1997043868A1 PCT/DE1997/000965 DE9700965W WO9743868A1 WO 1997043868 A1 WO1997043868 A1 WO 1997043868A1 DE 9700965 W DE9700965 W DE 9700965W WO 9743868 A1 WO9743868 A1 WO 9743868A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- service
- point
- switching
- control function
- call control
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L49/00—Packet switching elements
- H04L49/10—Packet switching elements characterised by the switching fabric construction
- H04L49/104—Asynchronous transfer mode [ATM] switching fabrics
- H04L49/105—ATM switching elements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/4228—Systems providing special services or facilities to subscribers in networks
-
- 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
- H04Q11/0478—Provisions for broadband connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
- H04Q3/0029—Provisions for intelligent networking
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5625—Operations, administration and maintenance [OAM]
- H04L2012/5626—Network management, e.g. Intelligent nets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
- H04L12/5601—Transfer mode dependent, e.g. ATM
- H04L2012/5629—Admission control
- H04L2012/563—Signalling, e.g. protocols, reference model
Definitions
- intelligent networks IN in which an intelligent service call originating from any subscriber terminal device, according to the provider of the intelligent service, sets up more or less complex connection configuration is initiated.
- functionality of an intelligent service is essentially given by a call number conversion, which is switched through depending on, for example, the time of day and the location of the outgoing call to a specific receiving point.
- intelligent network services are: connections that are free of charge for the calling subscriber terminal (in the switching network of DeutscheInstitut 0130er numbers),
- the switching network may forward data in digital form in fixed length message cells according to an asynchronous transmission method, preferably according to the ATM (Asynchronous Transfer Mode) transmission method.
- ATM Asynchronous Transfer Mode
- the subject of the registration relates to a switching system for dialing an intelligent network service by a subscriber. 8.
- Merend furnished TE according to the preamble of claims 1, 5, 6, 7 and 8 respectively.
- a switching system with the specified features is known from the ITU-T (Telecommunication Standardization Sector Of International Telecommunication Union) Recommendation Q121 *. This recommendation gives recommendations at the level of functional models for intelligent services in narrowband networks.
- the object of the application is based on the problem of creating a switching system, in particular also a switching system for switching broadband services, in which an expandability with the functionality of intelligent services goes hand in hand with a small need to change existing units.
- the object of the application is further based on the problem of creating a switching system having the functionality for intelligent services, in particular also a switching system for switching broadband services, in which the individual functional units have a low level of complexity.
- the extensive separation of the call control function and the service switching function brings with it a simple expandability of a switching node, which has not been able to use intelligent services until now, to include the functionality of an ability to process intelligent services. It makes itself noticeably noticeable that the interface between the call control function and the service switching function can be kept very small and the effort for changes in the call control function which has existed up to now remains small to adapt to the new functionality.
- the call control function CCF of a switching node which allows the connection of intelligent network services according to the application, has no new control properties compared to a call control function CCF of a switching node, which does not allow switching through of intelligent network services.
- the division of the call control function CCF and the service switching function SSF into separate classes of software on the one hand makes it possible to avoid mixed forms of functional units which have functionalities of another functional unit and on the other hand opens up the possibility of implementing the call control function CCF one hardware platform and the service switching function SSF on another hardware platform.
- a location point is reported by the call control function to the service switching function.
- the call control function is kept free of processing operations triggered by the detection point, or the processing of intelligent service-specific processes takes place independently of the call control function.
- FIG. 1 shows a basic representation of a switching network with a switching node SSP 1, to which a subscriber terminal TE and a service control point SCP are connected
- FIG. 2 shows an object diagram for the object model of the service switching function shown in FIG. 1 in the switching node SSF,
- FIG. 3 shows a time sequence plan using the example of setting up an IN call
- FIG. 4 shows a time sequence plan using the example of a triggering of an IN call.
- SSP 1 for: Service Switching Point
- a switching node has a call control function CCF (for: call control function) shown as a block and a service switching function SSF (for: service switching function) shown as a block.
- the service control point has a service control function SCF (for: Service Control Function) which is shown as a block and which, for example, effects the connection of a connection free of charge for the calling subscriber terminal.
- a subscriber terminal connected to the switching network can dial an intelligent broadband service, such as the transmission of a video sequence in real time, by issuing dialing indicators.
- the remote switching node SSP 2 is constructed in the same way as the local switching node SSP 1, with the difference that the switching node SSP 2 has no direct connection to the service control point SCP.
- the subscriber terminal TE 2 connected to the switching node SSP 2 can select an intelligent network service in the service control point SCP via the connection between the switching node SSP 2 and the switching node SSP 1.
- Service switching function SSF and the classes shown with shadows do not belong to the service switching function SSF, but are connected to the service switching function.
- the call control function CCF and the service switching function SSF are divided into separate classes of software.
- the discovery points DP for: Detection Points
- BCSM Basic Call State Model
- the call controller CC informs a discovery point treatment device DP-M (for: detection point manager). Every possible detection point is thus reported by the call control function CCF to the service switching function SSF.
- the detection point treatment device DP-M determines whether the detection point DP concerned is equipped either as an event detection point EDP (for: event detection point) or as a trigger detection point TDP (for: trigger detection point).
- the call controller CC can decide whether it should influence the call by the service control point SCP by calling the method 'request to the service control point' (SCP request) in the discovery point treatment facility DP-M and taking a waiting access Status permits, or whether a notification to the service control point SCP can be given only by calling the method 'notification of the service control point' (SCP notification) in the discovery point treatment facility DP-M.
- the call control CC can continue with the call handling without being influenced by the service control point SCP.
- the interface between the call control function CCF and the service switching function SSF is as small as possible.
- the discovery point treatment facility DP-M treats the discovery points DP in detail.
- the find point treatment device DP-M asks the trigger find point treatment device TDP-M (for: trigger detection point manager) whether a specific find point DP is equipped as a trigger find point TDP.
- the bump detection point treatment device TDP-M checks the criteria for a bump detection point TDP and reports all the bump detection points TDP that meet the criteria to the detection point treatment device DP-M.
- the criteria are defined in the ITU-T Recommendation Q1214, Section 4.2.2.4. given criteria. It is permissible to report several notification trigger detection points TDP-N (for: trigger detection point notification) but only one request trigger detection point TDP-R (for: trigger detection point request). There is no restriction in the fact that the notification of only one request initiation detection point TDP-R is permissible, because according to ITU-T Communication Q. 1214 only a control relationship between a call and the service control point SCP is permitted is.
- the detection point treatment device DP-M initiates an intelligent service.
- Control relationship (IN service control relationship) between the call and an intelligent service (IN service) by creating a new object service control point transmission SCP-T (for: Service Control Point Transaction).
- the detection points DPs so-called armed detection points, which are equipped as event detection points EDP or trigger detection points TDP, have all the information for communication with the service control point SCP; therefore, the find point handler DP-M routes the relevant object find point to the service control point transmission object. This information is made available for an initiation detection point TDP by an administration device (administration) in the switching node.
- the service control point SCP has the option of equipping detection points DP's as event detection points EDP.
- the finder point treatment device DP-M determines how a finder point DP is equipped.
- the information that a find point DP is equipped as a trigger find point TDP is provided by the trigger find point treatment device TDP-M.
- the information that a detection point DP is equipped as an event detection point EDP is stored locally in an event detection point table EDP-T (for: Event Detection Point Table) within the detection point treatment device DP-M.
- the service control point transmission object fills the event find point table EDP T by calling the method equipment event find point in the find point treatment facility DP-M.
- This approach is characterized by the fact that initiation find points TDPs for all Before calls are valid and event detection points EDPs are related to a specific call.
- the discovery points DP therefore have a hierarchical structure.
- the location points DP are to be understood as information carriers with which one of possibly several service control points SCP of a switching network is to be used for communication.
- the detection point treatment device DP-M is therefore arranged outside the call control function CCF.
- a switching node with a conventional call control function is expanded to include the functionality of the ability to register for intelligent services according to the application, the changes are essentially restricted to reporting the discovery of point of discovery treatment device DP-M to certain discovery points DP and to instructions waiting.
- a signaling channel is used for the communication of the service switching point SSP with the service control point SCP.
- the communication between the service switching point SSP and the service control point SCP takes place in the same way as the communication between the service switching point SSP and a subscriber terminal TE.
- the two types of communication mentioned are more advantageous
- FIG. 3 shows the processes in the individual units progressively from top to bottom using the example of a request from an intelligent network service.
- the subscriber terminal TE on request of the subscriber terminal TE 1, for example, the subscriber terminal connects to the call control CC.
- the call control builds up a new discovery point treatment facility.
- a new event detection point table EDP-T built up.
- a request-initiation detection point TDP-R is reached in the call control CC and a request for the service control point SCP is transmitted to the detection point treatment device DP-M.
- an inquiry-finding point TDP is queried and reported.
- a newly found bump find point TDP is entered in the bump find point treatment facility DP-M.
- a new service control point transmission SCP-T object is created in the discovery point handler DP-M to create an intelligent services control relationship between the call and an intelligent service.
- the discovery point treatment device DP-M connects to the service control point transmission device SCP-T for a start of the service control point transmission.
- the device transmits service control point transmission SCP-T to the trigger locating point TDP service control point-specific information.
- the service control point transmission SCP-T reports the discovery point DP to the service control point SCP and thus initializes it.
- the trigger detection point DP is discarded because its task has been accomplished.
- a request is made for notification of events within the basic call status model (RequestReportBCSMEvent).
- a new event detection point EDP is set up at point (13).
- a find point DP is equipped as an event find point EDP.
- the detection point treatment device DP-M enters the event detection point EDP and the event detection point table EDP-T.
- the service control point SCP is requested to the service control point transmission facility SCP-T with the relevant call to connect a certain subscriber terminal.
- FIG. 4 shows the processes in the individual units of an intelligent services network progressively from top to bottom using the example of an intelligent services connection triggered by a subscriber terminal device.
- the existing connection is triggered at the instigation of the subscriber terminal.
- the call control device CC issues a message SCP_Notification to the detection point treatment device DP-M.
- the find point treatment facility DP-M searches for the corresponding event find point entry in the event find point table EDP-T and deletes it if necessary (Get_and_Delete).
- the detection point treatment device DP-M issues a message (Send_Notification) to the device service point transmission point SCP-T.
- the service control point transmission SCP-T reads information about the service control point SCP from the event finder point EDP (Give_SCP_Information).
- the service control point transmission SCP-T sends a message about the achievement of an event detection point (EventReportBCSM) to the service control point SCP.
- EventReportBCSM event detection point
- the currently valid event detection point EDP is discarded.
- a message is sent from the detection point treatment device DP-M to the service control point transmission device SCP-T
- End_SCP_Transaction initiates the termination of the currently valid object service control point transmission (SCP_Transaction).
- SCP_Transaction the currently valid object service control point transmission
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002254884A CA2254884A1 (en) | 1996-05-15 | 1997-05-13 | Switching system with selection of broadband services via an intelligent network |
EP97923812A EP0898854A1 (en) | 1996-05-15 | 1997-05-13 | Switching system with selection of broadband services via an intelligent network |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996119800 DE19619800C2 (en) | 1996-05-15 | 1996-05-15 | Switching system with selection of broadband services via intelligent networks |
DE19619800.3 | 1996-05-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997043868A1 true WO1997043868A1 (en) | 1997-11-20 |
Family
ID=7794501
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE1997/000965 WO1997043868A1 (en) | 1996-05-15 | 1997-05-13 | Switching system with selection of broadband services via an intelligent network |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0898854A1 (en) |
CA (1) | CA2254884A1 (en) |
DE (1) | DE19619800C2 (en) |
WO (1) | WO1997043868A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7205964B1 (en) | 1998-09-02 | 2007-04-17 | Seiko Epson Corporation | Light source and display device |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004015847A1 (en) * | 2004-03-31 | 2005-10-27 | Siemens Ag | Re-addressing method for service logistics in a mobile radiotelephone network with an intelligent service environment uses original and alternative service logistics addresses via an exchange |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0583190A1 (en) * | 1992-07-29 | 1994-02-16 | Alcatel Cit | Telecommunications network with separate call and connection processing |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE470545B (en) * | 1992-11-26 | 1994-07-25 | Ellemtel Utvecklings Ab | Modular system of sub-functions |
-
1996
- 1996-05-15 DE DE1996119800 patent/DE19619800C2/en not_active Expired - Fee Related
-
1997
- 1997-05-13 CA CA002254884A patent/CA2254884A1/en not_active Abandoned
- 1997-05-13 EP EP97923812A patent/EP0898854A1/en not_active Withdrawn
- 1997-05-13 WO PCT/DE1997/000965 patent/WO1997043868A1/en not_active Application Discontinuation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0583190A1 (en) * | 1992-07-29 | 1994-02-16 | Alcatel Cit | Telecommunications network with separate call and connection processing |
Non-Patent Citations (4)
Title |
---|
BRETECHER Y ET AL: "THE INTELLIGENT NETWORK IN A BROADBAND CONTEXT", ISS '95. WORLD TELECOMMUNICATIONS CONGRESS. (INTERNATIONAL SWITCHIN SYMPOSIUM), ADVANCED SWITCHING TECHNOLOGIES FOR UNIVERSAL TELECOMMUNICATIONS AT THE BEGINNING OF THE 21ST. CENTURY BERLIN, APR. 23 - 28, 1995, vol. 2, 23 April 1995 (1995-04-23), VERBAND DEUTSCHER ELEKTROTECHNIKER (VDE) ET AL, pages 57 - 61, XP000495625 * |
ELIXMANN M ET AL: "OPEN SWITCHINF - EXTENDING CONTROL ARCHITECTURES TO FACILITATE APPLICATIONS", ISS '95. WORLD TELECOMMUNICATIONS CONGRESS. (INTERNATIONAL SWITCHIN SYMPOSIUM), ADVANCED SWITCHING TECHNOLOGIES FOR UNIVERSAL TELECOMMUNICATIONS AT THE BEGINNING OF THE 21ST. CENTURY BERLIN, APR. 23 - 28, 1995, vol. 2, 23 April 1995 (1995-04-23), VERBAND DEUTSCHER ELEKTROTECHNIKER (VDE) ET AL, pages 239 - 243, XP000495660 * |
TURNER D C: "STATUS AND FUTURE DIRECTIONS FOR GLOBAL INTELLIGENT NETWORK STANDARDS", ANNUAL REVIEW OF COMMUNICATIONS, vol. 49, 1 January 1996 (1996-01-01), pages 931 - 935, XP000620845 * |
WAKAMOTO M ET AL: "AN INTELLIGENT NETWORK CALL MODEL INCORPORATING BROADBAND ISDN CONTROLS", ELECTRONICS & COMMUNICATIONS IN JAPAN, PART I - COMMUNICATIONS, vol. 76, no. 1, 1 January 1993 (1993-01-01), pages 24 - 33, XP000408622 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7205964B1 (en) | 1998-09-02 | 2007-04-17 | Seiko Epson Corporation | Light source and display device |
Also Published As
Publication number | Publication date |
---|---|
DE19619800C2 (en) | 1998-05-20 |
DE19619800A1 (en) | 1997-11-27 |
CA2254884A1 (en) | 1997-11-20 |
EP0898854A1 (en) | 1999-03-03 |
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