scalenet-tv2go: a personalized mobile multimedia...
TRANSCRIPT
All Rights Reserved © Alcatel-Lucent 2006, 2008
ScaleNet-TV2Go: A Personalized Mobile
Multimedia Service
Dirk Kutscher1, Kevin Loos1, Dirk Meyer1, Peter Schefczik2, Michael Soellner2
1University of Bremen TZI, 2Bell Labs Germany
Wireless Communication and Information, 15./16. October 2008, Berlinische Galerie
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ScaleNet Partners and Disclaimer
Partners:
Projectvolume: 30.5 M€
Duration: July 2005 – September 2008
Subcontractors for Alcatel-Lucent: University of Bremen
The work presented here is part of BMBF project
The research reported here has been partly conducted within the ScaleNet program funded by the German Ministry
of Education and Research (BMBF) under grant 01BU536.
Scalable, efficient and flexible next generation converged mobile, wireless and fixed access networks
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Agenda
Motivation
ScaleNet Project
ScaleNet-TV2Go Demonstrator
What's in for the User? (Feature List)
Concepts, Solution and Findings
Demonstrator Architecture
Femtocells, Standardization
Take Away Points
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Motivation: ScaleNet in General
Network operators and service providers are looking for new revenue sources
New business relationships are emerging to adapt to new market requirements
New challenges require new thinking, new alliances and new partnerships for telepresence, energy saving, car to car, machine to machine, internet of
things, telemedicine, sensor networks, peer-to-peer, novel social network usages, mashups, femtocells
Heterogeneity of devices, networks and mechanisms
We need solutions for inter-working in these heterogeneous worlds
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Motivation for Multimedia Streaming
Broadband downlink traffic in North America in 2008
Streaming roughly 18%
Web-based video and audio delivery the third-heaviest part
Plethora of video and audio websites and services available YouTube, Last.fm, Miro, Joost, Zattoo, Babelgum ….
Study completed in May 2008
Multimedia Streaming!
by courtesy of
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Motivation for Robust Transport
Measurements on a ICE train trip: Wireless reality
Radio Repeater for GSM frequencies only
robust transport needed!
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ScaleNet Alcatel-Lucent Goals and Work Packages
Convergence of wireless and wireline technologies in the access network architecture
Robust seamless service delivery on shared heterogeneous wireless and wireline (WLAN, 2-3G, HSDPA, DSL, …) media
Demonstrate concepts to a wider audience: Implementation of a prototype for a multimedia service on top of our conceived architecture
WP 5 Integrated overall demonstrator
WP 5.5 Demonstrator
WP1 ArchitectureWP1.1.1 Use cases specification
WP 2.3.2 IP-based heterogeneous Resource Management
WP 3.3.8 Architecture and Protocols for Control Plane
WP 2.2.5 Service enabled Ethernet User/Transport Plane
WP 2.3.3 Architecture for Reconfigurable Switching Platforms
Work Packages
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From the ScaleNet Use Case “Personal News”
Back at home in the evening he commences the service again
Convergence of multimedia broadband and personalized services at home and on the move
Personal Use Service: At home in the morning
On the mobile phone he continues to listen the news service in the audio mode
In the car he switches the service again to video mode
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Service Elements for Demonstration
Fixed network
Broadband streaming on TV screen
Personalized Ticker: News, traffic information, sports
Network based Personal Video Recorder/Video Server
TV Set Top Box (STB)
Controlled by infrared remote control
Mobile network
Adaptation of media stream (device capability, link quality)
Realtime or time-shifted replay
Mobile-TV control functions by mobile terminals keyboard
Network proxy function to improve robustness
Session continuity between TV screen and cellular mobile on the move
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ScaleNet-TV2Go Demonstrator Setup
laptop
Home
On the move
DSLAM
TV
Office
CPE
FemtoBSR
Seamless mobility and multimedia session continuity
DSL
UMTS/HSDPA
UMTS/HSDPA
Femto BSR
mobile laptop
Personal Video Recorder/Video Server
At Home
TV set
Flat cellular network: Femtocell UMTS Base Station Router (Femto BSR)
Video Server at home or in the operators backbone
On the Move
Windows-based mobile-TV client (Laptop with UMTS/HSDPA data card)
Symbian-based mobile-TV client (for Nokia N95)
RC
STB BTS/Node B
Access NW
desktop
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ScaleNet-TV2Go Demonstrator Feature List
Mobility Services Seamless session handover from TV
screen to mobile clients and vice versa
Adaptive robustness and disconnection-tolerance
Blended Services Personalized news ticker on TV screen
Web surfing on TV screen using remote control
Electronic Programming Guide (EPG)
Presence Services User login on the TV set, selects from a
list of preconfigured users
UE capabilities database, adjusting the stream according to the device capabilities
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ScaleNet-TV2Go Demonstrator: Concepts, Solutions & Findings
Approach: From real-time-streaming to video-segment-delivery
File-transfer paradigm for video-streaming
Reliable transport sessions (here: HTTP/TCP)
Client requests video segments starting from specific timestamps
Opportunistic network usage and aggressive buffering
Try to buffer as much data ahead of time as possible
Use buffered data during disconnection times
Suitable codecs and video file formats
Disruption-friendly codec required (MPEG-4 part 2 and AAC)
Video file formats instead of RTP payload formats
Not all of them are suitable for streaming mode of operation
Different container formats available: AVI, MP4, Matroska
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Demonstrator Architecture Overview: Design for Disruption Tolerance
HTTP based approach
Real-time is not that important
Re-connect after connection loss
Aggressive buffering
Pre-cache as much as possible
Download complete video resources if possible
Local Proxy
Hide HTTP and connection problem from the player
User manager
Store private channel list
Manage device handoverVideo Cache
HTTP Client
Video Player
Video Storage
HTTP Server
User Manager
User Config
ScaleNet-TV2Go Server
Client
Proxy
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ScaleNet-TV2Go Lab
Laptop Mobile Client Proxy for robust, opportunistic,
service-aware transport via 3G MPEG4-Part2, Matroska
Set Top Box Client Format: PAL, 720x576 Based on Freevo open source
personal video system platform Hi-resolution content Web based GUI
Prototype Femto Base Station Router Compact single box architecture
(NodeB, RNC, SGSN/GGSN) for flat IP-network
Home TV Screen
Antenna for Femto BSR
Remote Control for Set top box
Smartphone Mobile Client GSM, GPRS, UMTS, HSDPA J2ME-based MPEG4-Part2 @ 352x288, 15 fps, MP4 format Feature set limited by platform constrains
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Prototype Femto Base Station Router
Femto-BSR: Home 3G access point using a flat IP architecture
Femto cells needed to improve in-building coverage
Integrates seamlessly into existing 3GPP core Auto configured unit in a home residence Ethernet connection to backbone Simultaneous access for maximal 4 residential
users Supporting any 3GPP-compliant handset, both CS
and PS calls Mobility management for registered UEs (Home
zone – Macro overlay)Alcatel-Lucent UMTS Femto Base
Station Router
RNCNodeB
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Femto Cell Standardization
3GPP RAN Feasibility Study (25.820): Femto operation is feasible
Lower BS power class to be defined (20 dBm)
Need for “interference mitigation techniques” both between Femto and between Femto and macro layers, when operating on the same carrier
Femto cell re-selection and access control procedures need to be specified
Architecture principles agreed to be based on extending Iu interface: Femto using a new “Iuh” interface between
Home NodeB (3G HNB)
–Standard 3GPP NodeB capability plus Radio Resource Management
3G HNB Gateway (3G HNB-GW)
–Aggregates traffic from a many HNBs into the core
Goal: Standard for Femto cells until end of 2008
3G HNB-GW3G HNB
Iuh IuCore Network
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Summary and Take Away Points
Changing behavior in Internet usage requires an evolution of the current handling of access networks
ScaleNet-TV2Go multimedia streaming prototype Seamless user experience across different access technologies and
devices
BSR access network Flat IP architecture suited for convergent network architectures
New services can be added easily
Work is still ongoing on flat, open architectures with simultaneous multi-service access via different access technologies: One device - multiple access technologies
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Mobile Multimedia Services, not any more a dream!
“Je rêvais d’une boîte magique que je pusse emporter devers moi, qui me livrât des images et des portraits que je pusse animer ou qu’animât celui qui me les envoyait “ 1)
Savinien Cyrano de Bergerac (L’autre Monde ou États et Empires de la Lune, 1657, p.211)
1) "I dreamed of a magic box that I could carry with me, which delivered images and portraits to me which I could animate or which animated were sent to me“
Cyrano de Bergerac
(The other World or States and Empires of the Moon, 1657, p211)
Kudos to Demosthenes Ikonomou, European Commission (2nd Daidalos Workshop, Heidelberg)
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References
Siebert, M. et.al.: ScaleNet - Converged Networks of the Future. Oldenbourg Wissenschaftsverlag IT-Themenheft: IP basierte mobile Netze,Vol 48, No.5, 2006, pp. 253-263
Dirk Kutscher, Dirk Meyer, Kevin Loos, Peter Schefczik, Michael Soellner, "A Personalized, Robust Mobile TV Service for Converging Networks“, 13. VDE/ITG Mobilfunktagung 2008, Osnabrueck, Germany 28.05-29.05.2008
Vikram Chandrasekhar, Jeffey G. Andrews, Alan Gatherer: Femtocell Networks: A Survey. IEEE Com. Mag. Journal, Vol. 46, No. 9, September 2008, pp. 59-67
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Thank you for
your attentionDr. Peter SchefczikAlcatel-Lucent Deutschland AGBell Labs GermanyEmail: pschefczik alcatel-lucent.com
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www.alcatel-lucent.com