in principle

7/31/2019 In Principle

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Intelligent Network Principle


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What is an Intelligent Network?

Origin of Intelligent Network:

1982 , AT&T

Centralized Database for user data

Prepaid Service, Free Phone Service


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Development of Intelligent Network:

1982 --1992


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Definition:

Intelligent Network is a platform where new

services can be created easily and deployed

quickly to existing telecom networks, such as

PSTN, GSM, CDMA, and data communication

network.


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CCF

CCF

SCF

SCF

SCF Service control function

SSF Service switching

function

SMF Service management

function

SMAF Service management

access function

SDF Service data function

SCE Service creation function

SRF Special resource

function

CCF Calling control function

CCAF Call control access

SCF Service control function

SSF Service switching

function

SMF Service management

function

SMAF Service management

access functionSDF Service data function

SCE Service creation function

SRF Special resource

function

CCF Calling control function

CCAF Call control access

SMF

SMF

SSF

SSF

SMA

F

SMA

FSCEF

SCEF

SDF

SDF SRF

SRF

Functional Entities of INFunctional Entities of IN

CCAF

CCAF CCAF

CCAF

Basic call processingBasic call processing

Service controlService control

Service managementService management


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IN Functional Entity Introduction 1

CCAFCCAF Provide access of subscriber,interface between

user and CCF. Normally, its IN user terminal,like

Voice/Data/ISDN terminal, etc.

CCFCCF Provide the means of establish and control service

to network users. Except for traditional meaning of call

and connection process, it also provide IN access trigger

mechanism.

SSFSSF Communication bridge between SCF and

CCF.Recognize IN call and report to SCF; accept call

control from SCF and send it to CCF to complete the call

processing.

SCFSCFThe Core of IN system. Control the call according


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NO.7 Signaling

SCPSCP

SMPSMPSCESCE

IPIP

Tandemswitch

Tandemswitch

SMAPSMAP

switchswitch

SSPSSP

switchswitchPLMN ss

p

ss

p


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Basic call

processing

Basic call

processingBasic call

processing

Basic call


processing

Basic call

processing

Service Control PointService Control Point

Basic call

processing

Basic call


processing

Basic call


processing

Basic call

processing

service1service1 sevice1sevice1 service1service1service2service2 service2service2 service2service2

service1service1service2service2

SupplementarySupplementary

serviceservice

SupplementarySupplementary

serviceservice

Intelligent serviceIntelligent serviceIntelligent serviceIntelligent service

The difference between IN and supplementary service


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The core of IN:

Separate service control function from call switching

function.The key technology of IN:

Database

The relation with current network:

dependent


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Call processing of INCall processing of IN

Basic ball processingBasic ball processingBasic ball processingBasic ball processing

SIB1 SIB2 SIBN

Service logic

Start pointStart point Return pointReturn point

The basic unit of IN callThe basic unit of IN call

A SIB perform a operationA SIB perform a operation

SServiceervice IIndependentndependent BBuilding blockuilding blockSIBSIBSServiceervice IIndependentndependent BBuilding blockuilding blockSIBSIB


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Strategy NetworkStrategy Network

Infrastructure networkInfrastructure network

Strategy networkStrategy network

Access networkAccess network

Core networkCore network

Service

network

Service

network

On the top of the network,; strategy network forOn the top of the network,; strategy network for

operation; key of the telecom operation.operation; key of the telecom operation.

The trend of service provisionThe trend of service provision


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Two-dimension development of INTwo-dimension development of IN

CIRCUIT


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CCS7NETWORK

PSTN

B-ISDN

N-ISDN

PSPDN

Mobile

Network

SCP

SSP IP

SMS

ServiceService

ProviderProvider

End-UserEnd-UserEnd-UserEnd-User

End-UserEnd-User

End-UserEnd-User

DB

INTERNET

End-UserEnd-User

Internet

IN for all networksIN for all networks


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SMAP SMAF SMP SMF SCEP SCEF

SCP SCF SDF

SSP CCF SSF

IP SRF

Signaling Link

Data Link

Basic Call ProcessingBasic Call Processing

Intelligent Service ManagementIntelligent Service Management

Intelligent Service ManagementIntelligent Service Management

IN Physical Entity Introduction


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IN Application in Fixed-line Network

------ Intelligent Network (ITU-T

IN Application in GSM Network------ Mobile Intelligent Network (CAMEL of

ETSI

IN Application in CDMA Network------ Wireless Intelligent Network (ANSI 41E)


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EVOLUTION OF IN STANDARDS

An Intelligent Network is a platform where new services can be

created easily and deployed quickly to existing telecomnetworks, such as PSTN, GSM, CDMA, WCDMA and theInternet.

19971997 19991999 20002000 20022002

CAMELPhase1CAMELPhase1

CAMEL Phase 2CAMEL Phase 2



19901990

ITU-T CS-1

19951995

ITU-T CS-2

ITU-T CS-3

ITU-T CS-4

WIN

IS826IS848

IS843

CAMEL

ITU-T CS

IS771


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No.7No.7

MTP1MTP1 MTP2MTP2 MTP3MTP3MTP1MTP1 MTP2MTP2 MTP3MTP3

SCCPSCCPSCCPSCCP

TCAPTCAPTCAPTCAP

INAPINAPINAPINAP CAPCAPCAPCAP MAPMAPMAPMAP ISUPISUPISUPISUP TUPTUPTUPTUP DUPDUPDUPDUP

INAP:INAP: IIntelligentntelligent NNetworketwork AApplicationspplications PProtocolrotocol

MAP:MAP:

MM

obileobile

AA

pplicationpplication

PPartart

CAP:CAP: CCAMELAMEL AApplicationpplication PPartart

ISUP:ISUP: ISISDNDN UUserser PPartart

DUP:DUP: DDigitaligital UUserser PPartart


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