OSGi Alliance World Congress:
Beyond R4: Emerging Applications
for the OSGi Service Platform
OSGi™ Technology and the IP
Multimedia Subsystem (IMS) for
Converged Network Services
Prepared for:
© Telcordia Technologies, Inc. 2005, All Rights Reserved
Stan Moyer
Executive Director
Applied Research
T +1.732.699.2966
F +1.732.336.7014
M +1.973.223.8528
stanm@research.telcordia.com
Telcordia Technologies, Inc.
One Telcordia Drive
RRC-1A361
Piscataway, NJ 08854

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Outline
Convergence — what is it and
why is it important
The IP Multimedia Subsystem
(IMS)
What’s not being addressed
How can OSGi™ technology
help
What should the OSGi
Alliance do
Summary

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BSBSC
SGSN /
GGSN
CSCF
Node B
RNC
MSC
Network
Transport &
Switching
Market Dynamics are Forcing
a New Services Framework
Industry Standards APIs & Protocols
(OMA Service Environment, Parlay X Web Services, OSA)
QoSRating
Common Service
Enabling Platform
Examples
SMS-C
HLR/HSS
Presence
GLMSMMSPolicy Server
Content
Servers
Preferences
AAA
Location
info
SIP App Server
Service
Enabling
MMS
Messaging
VPN
Conferencing Services
Push to Talk / VoIPM-Commerce
Banking
Information Services
MP3 MusicMaps and Directions
Financial Weather
Streaming video
Location Services
Services

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Operators Can Benefit from
3rd Party Services
Content Authorize Deliver Bill
Services the 3rd party can’t provide or prefers not to
The Value is in the Service Layer, Not the Network Layer
Presence/
Availability
Application
QOS
Authorization
Filtering/
Regulatory
Charging/
Billing
Micro-
payments
3rd-Party
Content
Services
3rd-Party
Content
Services

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Network and Service Convergence
The goal of convergence is to deliver a seamless
end user experience across multiple locations,
multiple devices and multiple types of use.
With convergence between the mobile and fixed line
networks, telecommunications operators can
provide services to users irrespective of their:
– location
– access technology
– terminal

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IMS provides capabilities such as:
service control
security functions
charging
routing
registration
SIP compression
QoS support.
2G/3G
RAN
PSTN
SS7
IP Network
R-SGW
MRPF
S-CSCF
MGW
I-CSCF
MRCF BGCF
MGCF
T-SGWPacket
Core
VoIP
Network
VoIP
Network
WiFi/WiMax
Network
WiFi/WiMax
Network
SGSN
GGSNCable/DSL
Network
Cable/DSL
Network
P/I/S-CSCF : Proxy/Serving/Interrogating Call
Session Control Function
HSS : Home Subscriber Server
IM-SSF : IP Multimedia Service Switching
Function
SIP : Session Initiation Protocol
S/GGSN Serving/Gateway GPRS Support Node
MRPF: Media Resource Processor Function
MGCF: Media Gateway Control Function
BGCF: Breakout Gateway Control Function
R/T-SGW: Mobile / PSTN Signaling Gateway
MGW: Media Gateway
PDF: Policy Decision Function
AF: Application Function
IP Multimedia Subsystem (IMS)
A Converged Services and Networks Platform
HSS
P-CSCF
PDF
AF
Application
Platform

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IMS in the Market
Leading operators committing big $ to
IMS networks
– BT
– Sprint
80+ IMS trials (mostly core IP networks
now)
WiFi Cellular Convergence
– Deutsche Telecom
– France Telecom
– Sprint
– SBC
– Telecom Italia
– Many more Huge hype
Many trials – basic services
Early for rich or converged services
Operators are thinking through their options

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User Needs and Expectations
AVAILABILITY
In building
On the road
… of services
AFFORDABILITY
Best Value
Take advantage of
embedded
home/enterprise
networks
EASE-OF-USE
Transparent to users
Same services/same user
experience
Common user profile
USER EXPERIENCE
Quality
Consistency
The game has changed…
it’s about the customer experience

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Dimensions of Convergence
One CoreOne Service One Device
IMS-based ConvergenceIMS-based Convergence
Support One Service
Experience:
• Single sign-on
• Single profile
• Service portability
seamless user experience
consistent service
across wireline and wireless
access networks
Provide One Device
Access:
Equipped with multiple
interfaces for:
• various wireline and
wireless access
networks
• varying connectivity
and QoS
Utilize One Core
Architecture:
Access-Independent IMS
as the core for various
wireline and wireless
access networks
(sharing of common
resources)

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What’s Not Being Addressed?
IMS does not fully support one service to many
devices yet
– Can do one service to some devices
– Doing better at one device for services across many
access networks
Not a full “one service” experience yet!!
Different device types, different device
capabilities, different OSs makes this difficult

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How Can OSGi Technology Help?
The OSGi service platform enables application
developers to “write once, deploy on many” end
devices
– Service providers can be sure that their services will
work on a variety of end devices
– Attracts third-party application developers
In the same way that IMS enables third-party
development of network-based services, OSGi
technology promotes third-party development of
end-device based services

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What Should the OSGi Alliance Do?
Mobile network operators are just beginning to
really look at the deployment of “rich” converged
services
Now is the time to address the issues
The OSGi Alliance needs to work with 3GPP (via
OMA?) to ensure that IMS can support OSGi
service platform capabilities such as:
– Remote management
– Service lifecycle management
– Service portability

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Summary
Service providers are moving to converged
networks and are promoting IMS
– Can (more) rapidly deploy new services
– Reduce costs via a common infrastructure
– Creates incentives for third-party developers
The OSGi service platform supports deployment
of services on “converged” devices
The OSGi Alliance should work with the
organizations that are defining the IMS
architecture, protocols, and services to
ensure that the benefits of the OSGi service
platform can be realized by IMS operators

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