application development presentation/course teaser

Network Resource Gateway (NRG) Application Development

DSLD Unit Florin van Slingerland Rev A Slide 1

Application Development

Presentation/Course Teaser

Florin van Slingerland Software Engineer

DU Service Layer Development

Ericsson Network Resource Gateway

Network Resource Gateway (NRG) Application Development

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Network Resource Gateway

Network Resource Gateway (NRG) Application Development

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NRG 3.0

NETWORKActs as an application integrator for a network improving the ability toquickly adapt to changing market demands

RESOURCESimplified application development combining the network resources for newcompelling applications

GATEWAYIt is a gateway for a controlled and secure interface to the Telecoms network

Network Resource Gateway (NRG) Application Development

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Application environment

SMS-C WAP GWMMC Email Server

PAPSMPP

MM7 SMTP

Applications

ApplicationsServers

• Availability of different interfaces Availability of different interfaces (versions) on the AS(versions) on the AS

• Multiple integrationMultiple integration

• Hard to reuseHard to reuse

• Availability of different interfaces Availability of different interfaces (versions) on the AS(versions) on the AS

• Multiple integrationMultiple integration

• Hard to reuseHard to reuse

Network Resource Gateway (NRG) Application Development

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Application Integration through Common Gateway

Common IT base API

Business Rules:

Limit network functionality usages

Limit the capacity usages

Business Monitoring and Surveillance:

Detailed statistics based on used functionaity

NRG 3.0NRG 3.0(Common GW)(Common GW)

HLRMSC MPC SMS-CWAP GW

AAACharging/

Billing System

MMS-CEmail Server

One Time

Integration

SMS-CWAPGW MPCAAA HLRSSF

EmailServer

MMS-C

Network Resource Gateway (NRG) Application Development

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WCDMA

IP network

Parlay/OSAApplication Servers

NRG’Firewall’

Third Party Applications

Applicationservers

GSM GPRS

Wireline CS/PS

Trusted Applications

Applicationservers

Parlay/OSA

Parlay/OSA

The internetOperator Domain

Network Resource Gateway (NRG) Application Development

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framework

Service capability server(s)

Parlay/OSA

ApplicationApplication server

NRG Overview

WAPGW

MMCMMC

Network Resource Gateway (NRG) Application Development

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Framework

• Authentication• Authorisation• Service discovery• Obtaining a service manager

– Establishment of SLA– SLA enforcement

HLR CSE

Msg.

server

WAP

server

SMSC

Network Resource Gateway (NRG) Application Development

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Call Handling Kit

• Multi Party Call Control– Call Control features

• Two Party Calls

• Multi Party Calls

• Network Initiated Calls

• Application Initiated Calls

– Charging

• User Interaction– Play Announcements

– Collecting digits

– Can be done

• towards multiple parties

• towards single party

HLR CSE

Msg.

server

WAP

server

SMSC

Network Resource Gateway (NRG) Application Development

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Information Kit

• User Status– Request User Status

• User Location– Request User Location

HLR CSE

Msg.

server

WAP

server

SMSC

Network Resource Gateway (NRG) Application Development

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Messaging Kit

• Generic User Interaction– Sending Messages:

• SMS

• MMS

• WAP-push

• E-mail

– Receive messages

• SMS

• Generic Messaging– Manage a mailbox

• Notification Management– Create and Delete Notifications:

supervision of a mailbox for new messages

– Receive Notifications: at regular intervals for new messages

• Message Retrieval Management– List Messages– Retrieve Messages (whole

message, header only etc.)– Delete Messages

HLR CSE

Msg.

server

WAP

server

SMSC

Network Resource Gateway (NRG) Application Development

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User KitPersonal Information Management

• PIM Contact– Create contact

– Retrieve contact

– Modify contact

– Delete contact

• PIM Calendar– Create event

– Retrieve event

– Modify event

– Delete event

– Create ToDo

– Retrieve ToDo

– Modify ToDo

– Delete ToDo

HLR CSE

Msg.

server

WAP

server

SMSC

Network Resource Gateway (NRG) Application Development

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Parlay/OSA

Network Resource Gateway (NRG) Application Development

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What is Parlay?

• Def.: A mediator API between Telecom networks and 3rd Party applications

• Open standards • Specified by the Parlay Group

and 3GPP, ETSI, OSA• Secure interface • Applications connect to the

NRG via a secure, measured and billable interface.

NRG

’Firewall’

Third Party Applications

Applicationservers

Parlay/OSA

Network Resource Gateway (NRG) Application Development

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Members:Members:

…and more(www.parlay.org)

Who is Parlay?Who is Parlay?• Parlay Group created in

March 1998

• In June 2000, became an open multi vendor forum to standardize and promote open application programming interfaces.

• Has over 68 members as of October 2003– Operators– Telco vendors– IP vendors– Developers

Network Resource Gateway (NRG) Application Development

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Benefits of PARLAY/OSA

For Operator/Service Provider• Reduced Time to Market• Address New Market Segments• Higher revenues• Reduced cost & churn

For the Developers• Faster development• Lower costs• Reduced complexity• Reduced risk• Higher revenues

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SDK

Network Resource Gateway (NRG) Application Development

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The SDK contains the following API’s:

• Core APIThe Core SDK is a Java implementation of the H-OSA protocol.

• Utility APIThe Utility SDK goes one step further as it offers an abstraction from not only CORBA but also H-OSA. It does so by combining a series of H-OSA invocations and responses and offering this series through a simplified, proprietary API.

• Test APIThe Test SDK can be used at design time to simulate the NRG.

Network Resource Gateway (NRG) Application Development

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NRG Software Development Kit (SDK)

SDK

NRG

Java

CORBA

CORBA

ApplicationServer(s)

Application Application

Network Resource Gateway (NRG) Application Development

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Demonstration

• How to configure JBuilder

Network Resource Gateway (NRG) Application Development

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NRG Software Development Kit (SDK)

SDK

NRG

Java

CORBA

CORBA

ApplicationServer(s)

Application Application

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Framework

Network Resource Gateway (NRG) Application Development

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Initialising an Parlay/NRG application

Client Application

Framework Required Service

14

2

3

5++

Network Resource Gateway (NRG) Application Development

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Framework

• Secure access from applications to the telecom network– Most important functions:

• Authentication • Authorization • Service Discovery• Establishment of service agreement

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Service Level Agreement (SLA) examples

calls per second / simultaneous calls allowed # MMS messages per second trigger ranges allowed charging impact allowed etc.

Service Level Agreement

Agreement between operator and 3rd partyProtection and security of networkBusiness agreement

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Service Level Agreement

Client Application

Framework

UserLocation

UserStatus

UserInteraction

Registered Services

Network Resource Gateway (NRG) Application Development

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Application Life Cycle

• Obtain access to the framework• Obtain the needed services

• Handle multiple transactions

• Release the used services• End the access to the framework

Initialization phase

Execution phase

Termination phase

Network Resource Gateway (NRG) Application Development

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Obtaining a Service

Network Resource Gateway (NRG) Application Development

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Demonstration

• Framework Demo Application

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Messaging

Network Resource Gateway (NRG) Application Development

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Where Do You Start ?

• Sequence Diagrams

Network Resource Gateway (NRG) Application Development

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Receiving a Message

• Sequence Diagrams

• Supported message types

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User Status Service

Network Resource Gateway (NRG) Application Development

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Where Do You Start ?

• Sequence Diagrams

Network Resource Gateway (NRG) Application Development

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User Location Service

Network Resource Gateway (NRG) Application Development

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Where Do You Start ?

• Sequence Diagrams

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Multi Party Call Control

Network Resource Gateway (NRG) Application Development

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What Are Legs & Calls ?

Marie John

Speech

Incomming Leg Outgoing leg

CallObject

Network

Network Resource Gateway (NRG) Application Development

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What Are Network Initiated Calls?

Marie John

Network

Application

12 3

4

Network Resource Gateway (NRG) Application Development

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What Are Application Initiated Calls?

Marie John

Network

Application

1

2

3

4