ip multimedia subsystem & mobile gaming - htw...
TRANSCRIPT
IP Multimedia Subsystem
& Mobile Gaming
Paul Coulton
Omer Rashid
Contents
Why IMS
IP Multimedia SubsystemIMS Overview
Advantages of IMS
IMS Services
Current State of IMS
Mobile Gaming; Current State and FutureTrends
IMS and Mobile Gaming
IS IMS Required?
Decline in operator revenue
Alternate sources of revenue
Content for mobile phones
Requires permission from content provider
Threat from IT service providers
Google, Skype etc
Returns control to carriers
IMS Overview
Three horizontalinfrastructure layers
Transport/GatewayLayer
Session Control Layer
Application Layer
Service orientedarchitecture
Distributed componentmodel
SIP as backbone
IMS Transport Layer
Consists of connection
and gateway functions
Users connect to IMS
through this layer
Key components
Media Gateway Function
(MGF)
Multimedia Resource
Function (MRF)
IMS Control Layer
Call Session ControlFunction (CSCF)
User device registration,routing information….
Home Subscriber Server(HSS)
Service profiles of subscribers
Media Controlinterface between applicationserver and media serverlocated in the application layerand transport layerrespectively.
IMS Application Layer
Delivers IP based servicesto users
Multiplayer Games
Push to Talk
Video chat, Conferencing
Instant Messaging
Presence etc
Consists of
SIP App. Servers
OSA Gateway
Architecture Difference from
Existing Networks
Exiting networks require separate
implementations for all layers for charging, group
list etc.
IMS allows reuse of common functionality
IMS Advantages
Wide range of new applications and services
possible
Help rebuild operator revenue and reduce
operational cost
Open service architecture will allow third
party services to be integrated easily and
ease of service customization across different
regions
IMS Deployments
0 5 10 15 20
Number of Contracts
Nortel
Nokia
Siemens
Ericsson
Lucent/Alcatel
IMS Trials
Alactel:15 trials including France Telecom.
Lucent:43 trials including 02 which launched on Isle of Man early 2006.
Siemens:Orange UK and Wanadoo successfully tested IMS as a referencesolution for future convergence applications in Q2 2005.
Nokia:20 trials including TeliaSonera
Nortel:Working closely with Verizon on Advance IMS architecture (A-IMS)
IMS 2006 and Beyond
2006-2007
Dominated by deployments by mobile operators
to enhance data revenues
2008-2010
Mobile operators phase into mobile VoIP
providers
2010-Beyond
Seamless working of applications across all wired
and wireless networks
IMS Services
IMS is a platform for creating and delivering awide range of services. It is only responsiblefor connection, state management, QoS andmobility while the actual data transfer takesplace directly amongst devices
IP Multimedia Channel IP Multimedia Channel
Packet -switched
Network ( GPRS
Or 3G )
Messaging
Presence
Information
Sharing
Rich Calls
Group
ServicesMobile
Entertainment
Gaming Chat
UEUE
IMS and Mobile Gaming
Current Trends in Mobile Gaming:Console game publishers entering the market
Revenue deals amongst operators anddevelopers
Third parties pushing content through operatorchannels
Better games supporting multiplayer andcommunity features
Consumer acceptance as game playing improvesdue to better handsets
JAVA: Major development medium
IMS and Mobile Gaming
Current Market State:(Source Gartner)
IMS and Mobile Gaming
Penetration of Gaming Handsets
IMS and Mobile Gaming
Benefits of Using IMSSingle user profile
Single sign-on for IMS
Wide Range of devices
Presence
Who is online (registered with IMS domain)
Who is available for a game even if not logged onto gameserver
Ability to mix gaming and media
Use IM in a gaming community whilst playing
Push to Talk
Share content (P2P)
IMS and Mobile Gaming
Benefits of using IMS (contd):
Data synchronization with SIP backend
aggregation.
Possibility for content providers to advertise to
reduce gaming cost
Play in offline mode for turn based games
Roaming across different operators
MMORPG becomes a possibility
IMS and Gaming Servers
Gaming server residing in Application Layer
along with other serversControlled by service provider or their content partner
Widely accepted
Gaming server outside IMS domain for third
party contentAllowing trusted third parties to obtain user information
to be made available for their gaming servers
IMS and Mobile Gaming
Platforms
Improvements on existing platforms
Authentication
Authorization
Charging
Authentication
Authorization
Charging
Authentication
Authorization
Charging
Game server and
Gaming
Communities
Authentication , charging done by IMS
Presence Information Provided by IMS
Other functionalities such as IM , video etc
provided by IMS
Game server and
Gaming
Communities
IMS Development Support
Java support available for IMS and SIPIMS Services API (JSR 281)
Supports:
IMS Registration
Co-location of multiple services
IMS service sessions
Presence and Group List Management
Media Connection
Extensive Support for SIP
SIP for J2ME, SIP Lite, SIP servlet, JAIN SIP
IMS Development Support
End to End Java Support for IMS
IMS Development Support
Support for additional services available from
individual vendors e.g. Nokia Provide
SIP API for Symbian along with Java (JSR 180)
PoC API
SDK’s to test and develop applications
Game Server Environment
Nokia SNAP
Provides multiplayer gaming support and community
features
Conclusions
Multiplayer gaming for mass market
SIP provides seamless interoperability
Brings community features into gaming
MMORPG becomes reality on Mobile
