scalenet-tv2go: a personalized mobile multimedia...

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

All Rights Reserved © Alcatel-Lucent 20082 ScaleNet-TV2Go, WCI 2008, Berlin, October 2008

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


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


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


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


Motivation for Robust Transport

Measurements on a ICE train trip: Wireless reality

Radio Repeater for GSM frequencies only

robust transport needed!


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


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


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


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


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


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


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


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


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


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


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


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)


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


Thank you for

your attentionDr. Peter SchefczikAlcatel-Lucent Deutschland AGBell Labs GermanyEmail: pschefczik alcatel-lucent.com


www.alcatel-lucent.com

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