fokus ims playground

8/11/2019 FOKUS IMS Playground

http://slidepdf.com/reader/full/fokus-ims-playground 1/44

1

Prof. Dr. T. Magedanz (TU Berlin / Fraunhofer FOKUS) - 2006

FOKUS IMSFOKUS IMS PlaygroundPlayground

– FOKUS in a nutshell

– Concept and Service offerings – FOKUS and Partner IMS components

– IMS Playground R&D activities (details only on request)

– Questions and Answers



2


Joseph von Fraunhofer (1787 - 1826)

ScientistDiscovery of “Fraunhofer-Lines“ within the sun light spectrum

Inventor

New processing methods for lense crafting

Entrepreneur

Director of a glass works factory

The person who has given the name is a good example for what we do!



4


Fraunhofer FOKUS Facts – FOKUS has been founded 1988 in Berlin, Germany

– 220 employees: sc ientists, students, techniciansoriginating from 30 nations

– FOKUS is THE Telecoms R&D institute within the

Fraunhofer Society

• Fraunhofer Society is the biggest German R&D

organization, total # of 12.000 employees)

• 60 inst itutes in total, 15 inst itutes in ICT

– FOKUS works since 17 years on convergence of IT, telecoms, internet and home

entertainment and performs appl ied research and development projects

• Performs st rategic studies, solution concepts, system integration and prototyp

developments

• Strong cooperation with universities & Establishment of spin of fs (e.g. iptelorg.com)

– FOKUS funding: 20% state, 80% industry R&D projects

• Key to success: Strategic Partnerships with big players (DTAG, NTT, etc)

– Main R&D Vision: „I-centric communications“ and „autonomic communications“



5


3GPP

ETSIOMA

IETF

Contribution

ToStandards

FOKUS NGN Reference Architecture & Testbed

Different

Access Networks

(WLAN, UMTS, DSL)

Interworking with

Legacy Networks

(GSM, ISDN, DVB)

NGN All IPCore Network

IP Mult imedia

System (IMS)

NGN Appl ication Servers / APIs

MM Content Delivery

Single Sign On (HSS)

Service Orchestration

Model Driven Architecture (MDA)

Content &

Services

Development of Cool

Seamless Multimedia

Applications

Integration of di fferent

Access Networks

QoS Provision & Security

Towards

NG Internet Core Network

Autonomic Communications

IMS Management + AAA

IMS Conformance Tests

Scalabili ty & Performance



6


Nat. Open NGN Test & Development Center

– Provision of a unique NGN Testbed covering allimportant NGN layers

– Foundation for industrial and academic projects

• Applications development support

• Applications validation

• Service Platform prototyping

• Infrastructure component testing

• Network Technologies integration

• ....

– Officially supported by

Applications

UMTS

FDD/

TDD

GSM /

GPRS

WLAN

a/b/x

DVB-

S/T

weitere

3Gb Network Technologies

Service Platforms

& Middleware

mGov

Other

Netws

Parlay

3Gb

Roaming

SIP AAAIMS

weitere

Web

services

Other

platforms

mHealth mXXX. weitereweitereOther

Apps

E n g i n

e e r i n g T o o l s , C o n f o r m a

n c e T e s t i n g ,

M e a s u r m e n t s , a n d M a n a g e m e n t

European NGN R&D Projects

National NGN R&D Projects

NGN Testbeds @ Fraunhofer FOKUS

Parlay Playground

IMS Playground

www.fokus.fraunhofer.de/ngni



7


IMS playground @ FOKUS• forms a globally unique state of the art IMS infrastructure featuring all major

IMS components and interfaces

• is a key infrastructure of the FOKUS NGN Service Delivery Platform test anddevelopment center

• comprises

– a full IMS based on own developments

– addit ional best of bread carrier grade components from partners• Goals:

– Provision of an open IMS platform and planned interconnection toOperator IMS test beds

– Interoperability test of IMS components (S-CSCFs, Media Gateways, SIP AS, etc.)

– Environment for development of new MM applications, applicationplatform extensions and IMS mobility, QoS and security research

• Contact: www.fokus.fraunhofer.de/ims



8


OPEN IMS Playground Overview



9


FOKUS – Components in the IMS Playground

SEMSSEMS

FHoSSFHoSS

SERSER

SIPSEESIPSEEOCS /OCS /

OCS XOCS X

OSCOSC



10


FOKUS – developed IMS Components• IMS Core

– Call Session Control Functions

• SIP proxy with 3GPP features - SER – Home Subscriber Server

• Diameter based AAA Server- FHoSS

– Media Server

• Media Streaming – SEMS

• IMS Application Layer

– IMS compliant SIP Clients – OSC

– Application Server • SIP Servlet AS – SIPSEE

• Parlay X Gateway – OCS-X

• Parlay Gateway – OCS



11


Open Source IMS Core for release in Q3 2006

OpenOpen SourceSource IMSIMS CoreCore



12


Call Session Control Functions @ FOKUS• Based on SIP Express Router (SER)

– Most widely used SIP proxy

– Freenet.de, web.de, 1&1, Earthlink

– Already supports IPv6, messaging and presence

– AKA authentication

– Diameter signaling via Cx (including iFC support) – Signaling compression

– B2BUA functionalities

– 3GPP extensions (routing, charging)



13


The FOKUS Home Subscriber Server - FHoSS• Prototypical implementation of a

Home Subscriber Server

– Realized in Java – Based upon Open Source Software

• e.g. MySQL, Tomcat

• Pure IP-based interfaces

• Blends out all HLR related interfaces• Diameter reference points supported so

far

– Cx for IMS registration processes

– Sh for IMS application platform support – Zh for the Generic Bootstrapping

Process

• Compliant with 3GPP Rel. 6specifications

CS domain PS domain IMS domain

GMSC

MSC

VLR

BSF SGSN

GGSN WLAN

SIP

AS

OSA

SCS

IM–

SSF

CSCF

Mobility Management

User Security Support

Application Service

Support

Service Authorization

Support



14


The FHoSS Management Interface

• Web-based management

interface• Allows easy configuration of

– user prof ile data

– initial Filter Criteria

– supported application servers

– Public Service IDs

– application server permissionlists

– charging information

– etc.



15


The FOKUS Media Server - SEMS• Developed by Fraunhofer FOKUS, the SIP Express Media Server

(SEMS) provides audio centric MRF core functionalit ies like

– Voicemail: record messages and mail them – Conferencing: connect people within a conference room

– Announcement: plays an announcement

– Media gateway: ISDN-card integration



16


IMS SIP Clients @ FOKUS• The Open SIP Client (OSC) is working on various platforms

– Symbian, PocketPC 2002/2003, Windows, etc, which support

Personal Java and JNI

• Supported services

– Streaming Notification Service

– Push to Talk

– Messenger Bot

– See What I See



17


FOKUS IMS SIP Client – Target End Devices

• Symbian OS

• Pocket PC 2002/2003

• Mobile Telephones with J2ME

• Palm OS(J2ME)

– Functionality:

• SIP Instant Messaging

• P2P Push-To-Talk

• Streaming Notification Service

– FOKUS IMS Client is based on NIST SIP Lite stack. It will be takenas a container for further IMS applications on end devices.

– Multimedia Streaming wil l be processed with the help of JavaMedia Framework (JMF) and, depending on the device, the JavaNative Interface (JNI).



18


SIP Servlet Execution Environment SIPSEE• SIPSEE implements the SIP Servlet API compliant to JSR 116

• SIPSEE based on Open Source software

• Servlet Container: Converged

SIP/HTTP Application Server• ISC interface: based on NIST-

JAIN SIP Stack.

• Sh interface: Java DiameterStack developed by FOKUS.

• Ro interface: to ChargingSystem, based on Diameter.

• Web Service Moduleimplementing Parlay X

• FOKUS SCIM (Service

Capability InteractionManager), enable complexbusiness and dynamicallyService invocation.

• Intelligent Security Module



19


Service Creation with SIPSEE• For a Converged SIP/HTTP Application (Community Service)

• SIP Servlet implements Call Control (B2BUA, Proxy) and providesorchestration features.

• Initiates Multimedia Conferencing Sessions as B2BUA on MediaServer

• Receiving Presence Information from Presence Server and showPresence information on Web-Page (SIP2HTTP Converged

Application)

• Manage Buddy List and personal Profile through Web User Interface,push and share content (music, photo or Click2Dial) to other user withSIP (HTTP2SIP and J2EE Applications)

• Do Online Charging through Ro-Interface• Dynamically update user Profile in HSS through Sh-Interface

• Dynamically changing Service invocation logic in SCIM



20


SIP Servlet Creation Environment (SIPSCE)

• Create SIP applicationswith drag and drop ease

using Swing and AWTcomponents. See GUIdesign changesimmediately withdynamic updates

between source codeand visual design.

• Accelerate SIP Servletdevelopment and makeyour applications easier

to maintain using toolsfor visually mapping andconstructingapplications.



21


Smart Center – A converged Application• The convergence within this

Value Added Service isbetween IMS SIP and HTTP.

• It is a prototype for acustomer frontend of a new„ Hot Line“ Service Concept.

• The Customer calls with hisIMS Client the Hot Line of

product xyz. Before he getsconnected a Web Site ispushed to him.

First Call to

the Hotline

Subsequent

Calls

Click to Dial



22


Smart Center – A converged Application

S-CSCF

HSS

P-CSCF

IMS Clients

D i a m e t e r

SIP

SIP

SIP

HTTP

Converged SIP AS

SIP Servlet Execution Environment

1. IMS Clients connect and authenticate at theIMS.

2. An IMS client sends a SIP INVITE messageto the Hot Line Service, e.g:sip:[email protected]

3. This INVITE is routed to the converged SIP AS. The AS can rely on the securityinfrastructure of the IMS.

4. The converged SIP AS generates apersonalized link for the IMS Client.

1. If unknown by CLI „ register Page“

2. If known by CLI „ personal Profile Page“

5. This Link is sent back to the IMS Client bySIP INFO.

6. The IMS Client uti lizes his „ Helper Appl icat ion“ to open the links (StandardBrowser).

7. The Client can perform click to dial orbrowse the website.



23


Open Communication Server (OCS)• The OCS is an OSA/Parlay implementation of substantial capability

features. Originally a stand alone development for the ParlayPlayground @ FOKUS based on CTI Hardware it is now ported as wellto the IMS @ FOKUS infrastructure.

– Distributed system written in Java and C++. Based on CORBA middleware

– Implemented capabili ty features

• Framework to Application and Framework to Services

• Generic and Mult iparty Call Control

• User Interaction (generic and call related)

• Generic Messaging

• User Status• User Location

• Presence and Availability Management



24


OCS Parlay Interfaces

O pen

C ommunication

S erver SIP Mapping CTI Mapping …

Networks

SIP Mapping Parlay Mapping

Application (C++, Java)

All-IP

(UMTS /

GPRS)

All-IP(UMTS /

GPRS)WLAN /

Internet

WLAN /

Internet

ISDN / PSTN /

GSM

ISDN / PSTN /

GSM

FW CC UI MobilityMessaging PAM …

Parlay API

Parlay X API

Parlay Foundation Classes


CORBA

Web Services / SOAP

CORBA


CORBA



25


SmartMessenger – Messaging• Multi Channel

Messaging application

• One application formultiple target networks

• Allows to sendmessages to:

– Voice recipients (TTSconversion) – VoIP /PSTN

– SIP Instant Message

– SMS

– Email



26


SmartMessenger – Functionality

S-CSCF

HSS

Messaging Server

Web Server OSA GW

HTTPParlayX API

P-CSCF

SIP IM

Breakout GW

POTSIMS Client

CS call

SMS

Email

W e b S e r v i c e s

SIP

D i a m e t e r

SIP

SIP

1. Web client accessesSmartMessenger website

2. Web applicat ioninvokes ParlayXapplication, to delivermessage to the ParlayXGW.

3. Par lay GW checks formessage types:

1. Creates SIP IM

2. Invokes integrated TTSfor sound file creation

3. Places sound f ile at theMedia Server

4. Invokes 3rd pty call

between Media Serverand other party

5. Uses Messaging Server API to del iver SMS andEmail

Media Server

SIP/

MSCML

RTP

RTPVoIP



27


OCS-X• Providing direct mapping to IMS protocols (SIP and Diameter) without

indirection via classical Parlay interfaces. Additionally there areconnections to service platforms from T-Mobile for SMS, MMS and

Location Information.

– Based on the SIP and HTTP Servlet container SIPSEE, using apache axisframework for Web Services

– Implemented interfaces

• Send SMS, Receive SMS, SMS Notification

• Send Message, Receive Message,

• Message NotificationFor MMS, Instant Messaging, Email

• Terminal Location

• Third Party Call Control

• Multimedia Conference

• Call Notification

– Interfaces under development

• Audio Calls• Call Handling

• Address List Management

• Presence



28


Parlay X Web Services with SIPSEE

SIPSEE (Jetty Servlet Container)

SIP Servlet

IMS CoreHSSS-CSCF

HTTP Servlet

Application

WS Server

Application

WS Client

OCS-X

Parlay X AS

Application

Domain

JAIN-NIST OpenDiameter

Parlay X WS



29


IMS benchmark testing – Why

- creation of objective means to compare IMS performance/price

- performance benchmark for IMS control plane (SIP signaling)

– System under Test (SuT)

• configuration (currently: IMS core systems with x-CSCF for signaling and HSSemulation for data base)

• IMS components with extensions for benchmark support (as x-CSCF - SER is

used)

– Test system

• defines test parameters, presents system’s load and measures the SuTperformance

– Abstract Benchmark Test Suite (TTCN-3) – deployment of tests (executables) with TTMex

• based on SIP test suites in TTCN3

• currently: scenarios for registration and call setup

• simulates UE to create the load



30


Example of IMS test configuration

.

..

UE emulations

.

..

UE emulationsBenchmark Test System

control and coordination

SuT reference

Implementation

P-CSCF

S-CSCF

I-CSCF

HSS

(emulation)HSS

(emulation)P-CSCF

I-CSCF

S-CSCF



31


Interoperability/Conformance Tests for IMS

Relevant Interfaces:

Gm

MwISC

Cx

Sh



32


IMS Testing Special Interest Group

• Special Interest Group (SIG) for IMS Benchmark Program

– Goal: as a working group to submit benchmark specification to standard

organization (ETSI TISPAN) – Covers areas:

• Traffic modeling (formal statistic models for control & data traffic)

• Test system (specif ication in TTCN3)

• System under test (test environment specification)

• Report format (content and format of data to be reported)

• Specification editing (document with all technical specifications)

– [email protected]

• Kickoff meeting of the SIG - at FOKUS was 3rd of November 2005



33


Work in Progress in the IMS Benchmarking SIG

• The Special Interest Group for IMS Benchmarking is currently definingthe following subsystems of relevance for benchmarking:

– Session Control: P-CSCF, I-CSCF, S-CSCF, HSS (already prototyped byFOKUS)

– Application Server

– HSS

– I/S-CSCF: I-CSCF, S-CSCF, HSS – Application Server / Media Resource Function: AS, MRF(C/P)

– Service/Control/Data Planes: P-CSCF, I-CSCF, S-CSCF, HSS, AS,MRF(C/P), PDF

– MRF: MRFC, MRFP – P-CSCF

– P-CSCF, PDF



34


IMS Service Orchestration

• PEEM (Policy Management and Enforcement)

– Creating, Managing and Enforcing Policies

– Policy Enforcement Component

• Security Policy Enforcement

• Charging Policy

• FOKUS PEEM/SCIM is implemented based on SIPSEE

– As a Policy-Proxy between S-CSCF and AS

– Enforce policy on all SIP/WS traffic to AS

– SCIM, proxy Message to appropriate AS

– Communicate with other IMS component (HSS,Billing, DB), dynamically updated at runtime

– A complex converged Application

• SIP Servlet, enforces policy on ISC interface

• AXIS – Web Service access

• Http Servlet - Administration

IMS ServiceIMS Service

Enabler Enabler



35


DPMManagement

Tool

UMTS

AP

WLAN

Other

Access

Networks

PEP

Policy

Repository

Domain

Policy

Manager (DPM)

PDP

Go

ResourceMonitoring

Function

Resource

Negotiation

Function

POBUCS Framework

IMS Playground

@ FOKUSP-CSCF

Gq

Gm

IMS Playground: QoS Framework

– Implementation of the Go and Gq

interfaces at FOKUS IMS Testbed

(The Gq interface will be anextended version to address

important requirements of the NGN /

TISPAN Gq’ interface);

– Implementation of the DPM

Management Tool and PolicyRepository modules;

– Specif ication of the Resource

Negotiation Function Requirements;

– Testing of QoS signaling and

integration with WLAN Access

Network.



36


Integration of Partner Components @ FOKUS IMS PG

Note: This is not a complete Partner List !

XDMS Presence



37


Reference Customers

– Consulting on IMS development strategies for major vendors

– Consulting on bids and gap analysis of commercial products for keyglobal integrator

– Extensions (Interfaces/Reference Points) of commercial solutions ofvarious vendors

– Implementation of prototypes for vendors and operators

– Integration and Compliancy testing of commercial solutions

– Consulting on IMS integration strategies for major German Operator

– Interoperability testing for major European vendors

– IMS Load- /Performance testing for key global hardware vendor

– Application Service development for major German operator – Consulting for establishing IMS Testbeds at remote sites

– Plus German and European R&D projects on Feature Interaction andService composition



38


R&D Work Areas around IMS/NGN

Open IMS Playground

Open Source

IMS Core

ServiceOrchestration

IMS Application

Server&Client

IMS

Benchmarking

& Interoperability

Tools

VoIP / IMS

Security

& Reliability

IMSData

Management

HSS

FMC / NGN

Applications

Prototyping

(Vendors / Operators)

Consulting for

Operators& Vendors

Interoperablity

Testing &Benchmarking

R&D

Projects

(BMBF / EU)

FMC / IMS

Call Continuity

Triple Play

IMS / IPTV

Integration

TISPAN

E2E QoS



39


From PTT to Community-Support based on IMS

• PoC/PTT basically defines a specif ic service based on genericenablers (Presence, GLMS/XDMS, FOTA)

• In fact PoC/PTT could be regarded as a specific instantiation of agroup communication framework

• Making money with PoC/PTT is unclear

• Making money with SMS and voice calls is clear

• Idea: – Reuse PoC/PTT enablers for other communication services as well

Integrated Presence driven IM, email, SMS, MMS, VoIP, CS-Calls,Video calls, etc.

– Provide group communication to those who really need it

well established Communities (Sports, Work, health, fun) wil lappreciate this!



40


IMS is a perfect basis for eCommunity services

• IMS is today considered as thecommon platform for FMC and NGNs

• A convergent community-service canideally be based on the IMS platformgranting:

– convergence and compatibili tybetween fixed/mobile networks

– multi-media and convergedservices support

– providing key community serviceenablers, such as

• Group Management• Presence

• IM / PoC

• generic VoIP/MMoIP support,

etc.

All-IP Network

IMS

Cellular Networks Fixed Networks

3GPP Domain NGN Domain

IMS



41


Mapping of eCommunity Features to IMS Enablers

• Support of various end user systems(PC from home, Notebook/Phone onthe go) for seamlesscommunications everywhere at anytime

• Dynamic group management (openvs. closed groups)

• Presence information of community

members• Location information of community

members and navigation support

• Click to communicate funct ionality(voice calls, video calls, SMS, MMS,

email, IM, PoC, etc)• Common mult imedia archives and

shared White Boards

• IMS is designed as an overlay tovarious access networks and alsodefines Gateways to legacytechnologies (CS networks)

• XDMS enabler supports Groupmanagement

• Presence enabler supports presence

• Location information can be

obtained from dedicated Locationservers (Le interface) or fromHSS/SIP registrars

• SIP Servlet application server canprovide „ Click to“ services via HTML

service page or dedicated clientapplication in end systems

• IMS „ Push to“ functionality e.g. viaINFO method



42


Mapping of eCommunity Features to IMS Enablers (cont.)

• Automated appointment scheduling& logistical support

• Optional profile matching

capabili ties for bringing peopletogether

• In the future: Virtual reality support

• Communities are third party driven!

• Support of third party servicestargeted towards specificcommunities

• Application server integration withcorporate databases/outlook

• Application Server and optional HSS

interrogation

• IMS supports any media (hereinteractive dynamic rendered video)and appl ication server control (VRserver)

• Usage of OSA/Parlay and later OMAOSE wil l enable controlled 3rd partyservices in IMS



43


Prototyping eCommunities within the FOKUS IMS Playground

Real

Communities

WLAN UMTS GSM/

ISDN

DSL

FOKUS IMS

Playground

FOKUS IMS

Playground

COSIMS

Development

Toolkits

Together with T-Systems, HPand T-Labs eCommunityservices are trialed with real life

users

IMS Core

S-CSCFI-CSCFP-CSCFHSS

OCMP

Media Server

Media Gateway

Enabler

Presence Server Messaging Server Call Control

ID Management

Server

XDMS

Applications

Community Applications

RTP

SIP

XCAP

HTTP

IMS Client

Application Enabler

PEEM

Extended

Presence Server

Role Management



44


For more Information ...

If you need further consultancy or onsite technical coaching ...

contact me

Prof. Dr. Thomas Magedanz

TUB Chair Next Generation Networks / Director FOKUS 3Gb Division

[email protected]

+49 171 172 70 70

+49 30 3463 7229

Kaiserin Augusta-Allee 31

14513 Berlin, Germany

fokus ims playground

Documents