CN1229560A - Service switching function in intelligent network - Google Patents

Service switching function in intelligent network Download PDF

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Publication number
CN1229560A
CN1229560A CN 97197639 CN97197639A CN1229560A CN 1229560 A CN1229560 A CN 1229560A CN 97197639 CN97197639 CN 97197639 CN 97197639 A CN97197639 A CN 97197639A CN 1229560 A CN1229560 A CN 1229560A
Authority
CN
China
Prior art keywords
ssf
terminal equipment
service switching
switching function
intelligent network
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN 97197639
Other languages
Chinese (zh)
Inventor
M·谢夫奇克
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of CN1229560A publication Critical patent/CN1229560A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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
    • H04L2012/5614—User Network Interface
    • H04L2012/5616—Terminal equipment, e.g. codecs, synch.
    • 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
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13527—Indexing scheme relating to selecting arrangements in general and for multiplex systems protocols - X.25, TCAP etc.
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2213/00—Indexing scheme relating to selecting arrangements in general and for multiplex systems
    • H04Q2213/13535—Indexing scheme relating to selecting arrangements in general and for multiplex systems distributed systems - also domains in service creation

Abstract

The known implementation of service switching functions in the switching nodes of an intelligent network is costly and lacks flexibility. In order to avoid these disadvantages, the invention provides for the service switching function to be implemented in terminals connected to the intelligent network.

Description

Miscellaneous service function of exchange in the intelligent network
Each price markup that various Intelligent Network allow each user in each communication network (for example ISDN integrated services digital network) to utilize and resemble free code, VPN(Virtual Private Network), phone information business or the like is professional.The standard architecture that IN uses is disclosed and has been stipulated all sidedly by each standardizing body that resembles ITU-T, ETSI and the Bellcor.
Fig. 1 shows each main IN architecture part with simple diagram.Each function that each composition portion of an exemplary functionality procedure declaration in now netting with IN is sent out:
1) terminal equipment on the A side is for example by selecting a special service number to open
Begin one to lead to a kind of exhalation connection of IN business.
2) discern this service number by the Service Switching Function SSF in the A side exchange.
3) this SSF (starting) request is for one in the service control point (SCP) (collection
In) each other instruction of the call treatment of service control function SCF.Adopt for this reason
Resemble one IN applying portion agreement (INAP) or the senior IN agreement (AIN)
Series standardized signaling protocol.These agreements are utilized known CCS7 common channel signaling No.7
(CCS7) technology.
4) SSF obtains to be used for the calling of SCF after correspondingly checking each important business datum
Each instruction of handling.For example be used as having of each instruction:
The target call numbers of-reality
-inquiry each security feature (PIN)
-charge information etc.
5) the A top-cross is changed SSF in the system and is set up on SCF instruction basis and lead to target on the B side
The connection of exchange.The SSF of a B side (incoming call) can ask SCF again
Each extra-instruction.
6) connect the calling of leading to terminal equipment B from terminal equipment A.
By a kind of Basic Call State Model BCSM (BSCM), for example press the ITU-T standard, Q.1224 carry out the call treatment among the SSF.BSCM is a kind of automaton (finite state machine), and this automaton becomes each conversion of signals of these terminal equipments instruction and generates or discern each corresponding network event (the B side that has for example taken) with SCF.
Architecture so far has following each shortcoming:
Each SSF function depends on each network function, the professional and SCF agreement of each IN.Their realization in each telephone office is that take a lot of trouble, inflexible, and must make their adaptive each new SCF agreement and Signalling method of realization at every turn.
Task of the present invention is to illustrate a kind of IN architecture of avoiding these described shortcomings.
Solve this task by IN architecture by claim 1.
Below with Fig. 2 in detail one embodiment of the present of invention are described in detail.
Fig. 2 shows and has an ATM (Asynchronous Transfer Mode) broadband networks as a kind of IN architecture of facilities network (advantage as the ATM net of facilities network is, had each communication interface that for example resembles the available energy the ATM-UNI (atm user-network interface)).
This exemplary IN architecture has following each feature:
1) in each terminal equipment rather than at the switching system of each dumb (inflexible)
Middle this SSF function that realizes.
2) each the SSF function in each terminal equipment passes through directly with the SCF function that each is suitable
The ATM agreement is under the signaling protocol condition that for example resembles CCS7 of avoiding each network internal
Exchange the various communication informations (for example being used for each instruction of call treatment).Can enumerate
For example resemble each of TCP/IP (transmission control protocol/IP(Internet Protocol)) (through ATM)
Industrial standard is as various suitable agreements.These agreements are based on the distribution process environment
(DPE) various known technologies.
3) each in each terminal equipment used local SSF in the direct usefulness terminal equipment through one
Individual suitable applications routine interface (API) exchange is used for each of business or network control
The communication information (connection of for example leading to a kind of IN business in the ATM net is set up).
Is prerequisite (satisfied this prerequisite at each microcomputer, work station and each server as terminal equipment today at least) by IN architecture of the present invention with various terminal equipments intelligence and that have sizable calculating usefulness.
Each performance by IN architecture of the present invention below is described in detail in detail:
1) in each terminal equipment, realize these SSF functions, and these SSF functions can through
DPE and SCF function exchange IN service communication information.
2) dynamically deposit the SSF function in each terminal equipment by the SCF function in running time
In.But each known method of application program and file transfer for this reason.Thus can be with SSF
Neatly with the various demands of ATM net and with various IN use suitable, and shadow not
Ring each atm exchange system.
3) all application in each terminal equipment have one to lead to and be used for and the IN operation exchange connects
Connect the unified application programming interfaces (API) of the SSF of each communication information of control.This connects
The SSF that mouth is independent of separately is functional.
4) SSF will press each through the communication information that the connection that API receives is controlled on uni interface
Effective I TU-T or atm forum standard (for example Q.2931, UNI3.1 or the like)
Be interpreted as the standardized signaling communication information.(use pellucidly) warp for this for this reason
Cross each DPE communication protocol and take out each additional instruction from the SCF that concentrates.Example:
When the application call of A side is led to VPN(Virtual Private Network) business of B side, the VPN Subscriber Number of the special use of SSF identification in the terminal equipment on the A side, and require SCF to be interpreted as the terminal equipment number of B side.In SCF, carry out the inspection of necessity of each royalty right or the like at this.The real terminal equipment number of the B side that will be obtained by SCF by SSF is used as and is used for connecting the UNI that sets up at facilities network (for example ATM net) and selects information.SSF in the terminal equipment of B side can similarly control the special call treatment of each calling that arrives on the B side.
5) each the SSF function in each A/B terminal equipment by the IN architecture (for example realizes
ITU-T is Q.12XX) in disclosed Basic Call State Model BCSM (BCSM),
Handle each interface signal that each terminal equipment uses and application specific each signal and not
Handle each network event (CCS7 for example, INAP).This is than so far each IN system
Much bigger flexibility is provided in the structure, and (also the function between SSF and SCF is divided
Design aspect).Aspect each signal of each SSF application specific and SSF and
The various changes of the function division aspect between the SCF are to each atm exchange system and ATM
Signalling method in the broadband networks is influence not.

Claims (7)

1. intelligent network has
A) a kind of service control function of processing of network concentrated area control Intelligent Network business
(SCF)，
B) a kind of implement is used to handle each of IN business by what Service Control Function received
The Service Switching Function (SSF) of instruction,
It is characterized in that,
C) on being connected to intelligent network, realize this Service Switching Function (SSF) in each terminal equipment.
2. press the intelligent network of claim 1, it is characterized in that, this intelligent network with a kind of ATM net as facilities network, and a kind of communication protocol of this Service Switching Function (SSF) process is the Service Control Function exchange IN communication information therewith, this communication protocol is based on the technology of distribution process environment (DPE), and is based upon on the atm signaling agreement.
3. the terminal equipment of intelligent network has
A) pass through a kind of application that each corresponding IN communication information is controlled the IN business,
B) a kind of Service Switching Function (SSF), this function receives described each IN communication information
With these IN communication informations are compiled into on the facilities network of this intelligent network as the basis
The signaling communication information, concentrate with a network at this this Service Switching Function for this reason
Service Control Function switched communication information.
4. by the terminal equipment of claim 3, it is characterized in that Service Switching Function (SSF) is used from IN with direct mode and received the described IN communication information.
5. by the terminal equipment of claim 3 or 4, it is characterized in that, can be dynamically, promptly in running time, (SSF) deposits this terminal equipment in to meaning with Service Switching Function.
6. by the terminal equipment of one of claim 3 to 5, it is characterized in that, be used for communicating a kind of communication protocol that is independent of facilities network of Service Switching Function (SSF) employing of information exchange with Service Control Function.
7. press the terminal equipment of one of claim 3 to 6, it is characterized in that, an API (API), this interface is formed for exchanging a unified horizontal interface of the IN communication information between application and IN business, and this interface is be independent of Service Switching Function (SSF) functional with respect to intelligent network.
CN 97197639 1996-09-04 1997-09-03 Service switching function in intelligent network Pending CN1229560A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP96114171 1996-09-04
EP96114171.0 1996-09-04

Publications (1)

Publication Number Publication Date
CN1229560A true CN1229560A (en) 1999-09-22

Family

ID=8223161

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 97197639 Pending CN1229560A (en) 1996-09-04 1997-09-03 Service switching function in intelligent network

Country Status (3)

Country Link
EP (1) EP0923838A1 (en)
CN (1) CN1229560A (en)
WO (1) WO1998010599A1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5600643A (en) * 1993-09-23 1997-02-04 Bell Communications Research, Inc. Broadband intelligent telecommunications network and method providing enhanced capabilities for customer premises equipment
US5515427A (en) * 1994-07-19 1996-05-07 At&T Corp. Completion of intelligent network telephone calls

Also Published As

Publication number Publication date
WO1998010599A1 (en) 1998-03-12
EP0923838A1 (en) 1999-06-23

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