IMS IPbased Multimedia System

1
IMS IP-based Multimedia System

• Nortib, October 2003
• Sundvollen, Norway
• Reidar.Mouhleb_at_siemens.com
• 4792608509

2
The IMS is introduced with UMTS Release 5 What
is the IP-based Multimedia Subsystem?

• 3GPP has defined three domains for UMTS Networks
• Circuit Switched domain
• Packet Oriented domain
• IP Multimedia subsystem
• Supports SIP-based call control of
  packet-oriented connections.
• Enables voice-oriented services as well as
  multimedia services.
• PO domain offers bearer services while IM
  subsystem offers control.
• Possibility to have multiple bearer channels in
  one session.

3
IMS IP-based Multi-media System

• IMS is the standardized multimedia control domain
  for SIP based services and applications
• Multimedia Service Platform based om Internet
  Protocols
• SIP
• Diameter
• COPs
• IPv6 (IPv4 under discussion)
• Access agnostic
• UMTS, GPRS, WLAN, DSL
• Developed in 3GPP
• Work begun in mid 1999
• Named the IP Multimedia Subsystem by 3GPP
• Replacing the term All-IP
• 3GPP Release 5 is mainly IMS
• 3GPP Release 5 replaces the previous Release 2000
• IMS products are available now

4
Natural Evolution towards Future Real-Time
MultimediaReal-time Multimedia Services are the
natural and inevitable enhancement of the current
service landscape

• MMS
• email with attachments
• browsing download (WAP 2.0, Http, Java)

• Video telephony
• MM Conferencing
• Rich voice
• Push-to-Watch
• Converged services

Tomorrow (gt2004)
Multi Media
Today

• SMS
• Text WAP
• email

• Instant Messaging/Chatting
• Push-to-Talk

• SMS
• Text-WAP

Single Media
Yesterday
Non Real-Time
Real-Time
Source Siemens Mobile Networks Marketing, 2003
5
IMS new multi-media services

• Communication
• Push-to-talk / push-to-see
• Instant Messaging
• Video Conferencing

• Entertainment
• Person-to-Person Gaming
• Audio and Video Streaming
• Interactive Shows and Events

• Enterprise and on the road
• Remote Facility Control
• Collaborative working
• Interactive learning and guidance

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MNOs Relegated to Access Providers?
XHTML
Application ConvergedServices Providers
MobileNetwork
Internet
ISP
TCP/IP/HTTPSIP
TCP/IP/HTTPSIP
M-Com- merce interactiveservices
Context establish- ment (Portal)
Content-Indep.- Services
Applica- tions Services
Mobilenetwork access
Content mgmt publ.
Internetaccess
Payment services
Content creation
Value Chain
Network

• Challenges for the operator
• gaining control of the extended value chain
• keeping ownership of subscribers
• extend revenue and profit potential

7
What is IMS?Network architecture with
IMS-schematic view
Standardised APIs
GPRS, UMTS PO
RAN
8
IMS is access agnostic
Terminal tailored Client Software Modules and
GUIs
3GPP IMS
Operators IP Backbone
Mobility Servers
Call Servers
Application Servers
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IMS easy service integration

• With IMS - one-time integration

• No IMS - repeated vertical integration
  - no synergies!

...
IMS
...
Single Sign-on
One Billing
MultimediaSession Control
Global user Database
Common network Integration
Common OM
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Why IMS?IMS lowers the implementation depth of
new applications
Enabling Services
Applications
Presence Location
Charging
Core Network IP Multimedia Subsystem
Services
Transport Mobility, QoS, ...
UTRAN / GPRS
SGSN
GGSN
11
Siemens focuses service convergence based on a
SIP-based Application/Service Infrastructure
Fully converged SIP-based Application / Service
Infrastructure
Common SIP Services and Applications
MSC, MSC-S
MGW
MGW
hiE9200
CSCF
MGCF
PSTN
Multimedia Network
PLMN
SGSN
fixed
mobile
wireless
SIP user
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Network architecture ref 3GPP 23.821
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IMS Comes With a Number of New Products IMS
Multimedia Network Elements
CMS 8200
_at_vantage CCS-1000
CCS 1000
MRF Core Conferencing Server
CFX 5200
CFX 5000
_at_vantage CFX-5200
CMG 3000
MGCFMedia Gateway Controller
_at_vantage CFX-5000

• Multimedia conferencing and multiparty call for
  3 or more participants.

CSCF Call State Control Function
_at_vantage CMS-8200
HSS Core Mobility and Home Subscription Server

• Control ofgateway for voice/video and data calls
  to from PSTN/PLMN

• Central entity
• Session and call control
• Service triggering
• Charging

• AAA
• Mobility Management
• User profile data

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IMS the products available now

HSS Home Subscription Server
Siemens IMS ready to start
Applications
CSCF Call State Control Function
SGSN PS-domain
IMS
MGCF Media Gateway ControlFunction
CSCF
HSS
MGCF
GGSN
MGW Media Gateway
MGW
PSTN
Application Servers
The key IMS products are based on Siemens
_at_vantage platform.
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IMS Network topografy
CFS-8000 (Application Servers)
OAM Platform
ISC
CFX-5000 (CSCF)
DNS
CFX-5200 (MGCF, SGW)
C x
Ethernet Switch
CMS-8200 UMS
PSTN/ PLMN
ISUP
TDM
HLR
CMG-3000 (MGW)
CCS-1000 (MRF)
Radius Server
DHCP
G r
Router
Internet
G i
G n
Iu
UMTS R99/R4/R5
SGSN
GGSN
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IMS Terminal availability
Same look and feel on all devices

• GPRS terminals

• UMTS terminals

• WLAN terminals

Download the application to your terminal and go !
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Siemens IMS References
Vodafone Group RD Germany
Customer in Germany
Customer in Germany
TeliaSonera
Customer Italy
Customer UK
Customer in UK
Customer in China
Customer in USA
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IMS Benefits
Benefits for the User
Benefits for the Operator

• Fast and flexible service creation (1 SIP client)
• Innovative realtime multimedia service offers
• Full control of services by operator
• Service differentiation by flexible bandwidth
  allocation and guaranteed QoS
• Fixed / mobile convergence
• Common service control infrastructure for PS
  domain for cost optimization and easy service
  introduction
• Longterm CS migration by shifting voice traffic
  towards PS domain

• Single sign on
• Application bundling in realtime (e.g.
  simultaneous usage of voice and data
  applications)
• Realtime messaging without store foreward
• Multiparty communication services (e.g. chatting,
  conferencing)
• Enrichment and personalization (e.g. realtime
  multimedia, buddy lists, presence, push services,
  subscriber self administration)
• Anywhere service access from various access
  networks

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Summary

• IMS enables the operator to build up new IP-based
  mobile services and applications under his
  control (e.g. PIM, Push to Talk) through
  standardised APIs and interfaces
• IMS provides the capability to offer any mixture
  of peer to peer real-time and non-real-time
  services (Rich Voice, Data, Video,) to increase
  ARPU and reduce churn rate
• The IMS based highly scalable common service
  control infrastructure helps the operator to keep
  OPEX low while deploying new services rapidly
  (central user admin, standardized interfaces, )
• Using an IP-transport network supports the
  fix/mobile convergence of those services by
  enabling access over any network (UMTS, WLAN, or
  fixed broadband network,..)
• Siemens IMS is available today