National Institute of Science & Technology Technical seminar-2004 S.Rabindra kumar Patro EI200117185 [1] Technical Seminar On Description of Wireless intelligent

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Technical seminar-2004

S.Rabindra kumar Patro EI200117185

Technical SeminarOn

Description of Wireless intelligent network with the use of case Maps

Under The guidance of

N.Srinivasu

ByS.Rabindra kumar patro

Roll No. :200117185Branch: EI

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Wireless Intelligent NetworkThe idea of WIN is to include IN concepts in IS-41, to facilitate creation of new services in mobile systems.WIN also adopts a number of IN concepts, such as the one of Distributed Functional Plane and Functional Entities.WIN introduces the concept of Network Entities (NEs) and their respective network reference model.

Multiple NE may be combined in one PENE are similar to PE in that a NE may contain several FE.WIN does not want to recommend Physical Entities. Network entities are still abstract with respect to PE and can be implemented in several ways

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UCMs for WIN

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ORIGINATOR Root MapLocation Update

Get Call No Answer

Get Call Answer

Call Origination

Feature Active Update

WIN Database Management

WIN CNAP/RND

In5 Out5

In1

Out1TERMINATOR

The originator can at any time perform a location update or a feature activation. It can also originate a call. By intervention of the terminator,

the call is either answered or not.

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TERMINATOR Root MapLocation Update

Get Call No Answer

Get Call Answer

Call Origination

Feature Active UpdateWIN Database ManagementWIN CNAP/RND

In5 Out5

In1

Out1TERMINATOR

The originator can at any time perform a location update or a feature activation. It can also originate a call. By intervention of the

terminator, the call is either answered or not.

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Example

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ACFAuthentication ControlCCFCall ControlLRFHLocation Registration-HLRLRFVLocation Registration-VLRMACFMobile Station Access ControlRACFRadio Access ControlRCFRadio ControlRTFRadio TerminalSCEFService Creation EnvironmentSCFService ControlSDFService DataSMAFService Management AccessSMFService ManagementSSFService SwitchingSRFSpecialized Resource

Management related functions

Service Control Reated functions

Call Control related functions

Wireless Access Mobility related functions

SRF

SCF

LRF H

RTF

SSF

CCF

LRF V

RACF

MACF

RCF

SCEFSMAF SMF

To any FE

SDF

ACF

WIN Distributed Functional Model (DFM)

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Some important WIN Functional Entities

Call Control Function (CCF) provides call and service processing and control.It is a function that handles all normal calls by providing the process and the control of call/connection between network subscribers. It also provides IN service access.Service Switching Function (SSF) is associated with CCF and provides the set of functions required for interaction between the CCF and a service control function (SCF) by managing signaling between them.Mobile Station Access Control Function (MACF) stores subscriber data and dynamically associates system resources with a particular call (TLDN assignment,see later).Location Registration Functions (LRFV and LRFH) provides the service logic and service data function to manage the mobility aspects for wireless users (VLR and HLR);

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Some important WIN Functional Entities

Service Control Function (SCF) commands call control functions in the processing of WIN provided and custom service requests. It contains all the logic and data required to provide a service. It may interact with other functional entities to access additional logic or data. Service Data Function (SDF) contains customer and network data for real-time access by the SCF in the execution of WIN-provided servicesspecialized Resource Function (SRF) provides the specialized resources required for the execution of WIN-provided services (e.g., digit receivers, announcements, conference bridges, etc.).

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WIN Network Reference Model (NRM)

Cell

IP SCP

BS

MS

AC

SNEIR

HLR

MC SME

External Networks(PSTN, ISDN, …)

MSCVLR

AC: Authentication Center

BS: Base Station

EIR: Equipment Identity Register

HLR: Home Location Register

IP: Intelligent Peripheral

MC: Message Center

MS: Mobile Station

MSC: Mobile Switching Center

SCP: Service Control Point

SME: Short Message Entity

SN: Service Node

VLR: Visitor Location Register

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Some important WIN Network Entities

Mobile Station (MS) interface equipment used to terminate the radio path at the user side. It provides the capabilities to access network services by the user.Mobile Switching Center (MSC) constitutes the interface for user traffic between the cellular network and other public switched networks, or other MSCs in the same or other cellular networksHome Location Register (HLR) location register to which a user identity is assigned for record purposes such as subscriber information (e.g., profile information, current location, authorization period, etc.)Visitor Location Register (VLR) retrieves information for handling of calls to or from a visiting subscriberService Control Point (SCP) acts as a real-time database and transaction processing system to provide service control and service data functionality

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Some important WIN Network Entities

Intelligent Peripheral (IP) performs specialized resource functions such as playing announcements, collecting digits, performing speech-to-text or text-to-speech conversion, recording and storing voice messages, facsimile services, data services, and so forth.Authentication Center (AC) manages the authentication information related to the MS.Service Node (SN) This is to accommodate implementers that for any reason do not want to implement MSC, SCP, IP.It is superfluous if MSC, SCP, IP are properly implemented

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WIN Incoming Call Screening Service

Provides for alternate routing,

blocking, or

allowing of specified incoming calls

Incoming Call Termination TreatmentTerminated normally to the subscriber with normal alerting

Terminated normally to the subscriber with distinctive alerting

Forwarded to another number

Forwarded to voice mail

Routed to subscriber-specific announcement

Blocked

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Incoming Call Screening (ICS) Scenario wthUse Case Maps :

The start point (Incoming Call) leads to the ICS stub, which gives one of five possible outcomes:

• Call Setup (with normal or distinctive alerting)• Call Forwarded • Voicemail • Announcement• Call Blocked

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Incoming Call Screening (ICS)

ICS can use a number of screening factors to determine which termination action is appropriate.

These factors are related to calling party characteristics: • number, identity • speech or voice-based identification procedure • password

They can also be related to called party characteristics:• location• status

Or to other factors such as: • date• time

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WIN Feature:CNAP, Call Name Presentation

Calling Name Presentation (CNAP) provides the name identification of the originating party (e.g. personal name, company name, “restricted”, “not available”) to the terminating subscriber.

The Calling Name Information (CNA) may be provided explicitly to the terminating network from the originating network (passed through SS7 as a parm)

or it may be derived from the Calling Number Information (CNI) which is generally provided to the terminating network from the originating network.

When the CNAP service is invoked, the terminating network shall send the calling name information (if it can find it and it is not restricted) to the terminal during alerting on incoming calls. The terminal shall display the calling name information or other appropriate message

RND (Redirecting Name Delivery) option: in case call was forwarded, RND provides the name of the last redirecting party as well as the name of the originating party

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CNAP Typical Scenario

ServingMSC

HLR SCP

Incoming Call

LocationRequest

RouteRequest

If Called MS found and not busy, return loc result with TLDN

Return loc result, TLDN

ServiceRequest with calling #

Return result with display text

HomeMSC

Home of terminating party

Term. party is roaming

Call routed by using TLDN. Caller # also delivered.

voice path

1

2

4

3

6 7

5

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CNAP Typical Scenario

A terminating MSC receives an incoming call indication and sends a LOCATION REQ to the HLR of the called subscriber. This one is roaming.

The HLR determines the current serving LA for the called MS and sends a ROUTE REQ to its MS (through the corresponding serving VLR) for obtaining a Temporary Local Directory Number (TLDN).

The MACF functional entity inside the serving MSC assigns a TLDN to the destination device and returns it to HLR (through the VLR).

HLR returns routing info, TLDN to Home MSC

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CNAP Typical ScenarioHome MSC uses TLDN to route call to serving MSC. A direct link between the two MSCs, to the terminating device is now established.

Serving MSC encounters trigger denoting CNAP service for MS.

It queries the SCP which is supposed to have some way to find the name of the user (this could be not so simple, but is not discussed in the standard).

SCP returns info to serving MSC, which is now able to provide the name info to the called MS

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Conclusions on WIN

WIN is a valuable attempt to merge IN and mobility concepts

shares limitations of IN on how features can be constructed

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Thank You

Documents

National Institute of Science & Technology Technical seminar-2004 S.Rabindra kumar Patro EI200117185 [1] Technical Seminar On Description of Wireless intelligent