Interactivity in Mobile TV

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Interactivity in Mobile TV
Tom Sederlöf
Seminaariesitelmä TKK Networking business Työn
valvoja Heikki Hämmäinen Työn Ohjaaja Tkt
Markus Lindqvist
Nokia Multimedia
14.02.2006
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• Introduction
• Layered Model Of Mobile Broadcasting
• Radio Layer
• System Layer
• Business Environment
• Interactivity
• Interactivity in Mobile TV
• Conclutions

3
Introduction

• Motivation
• Costs transimitting broadcast type of data is
  extremely high in point-to-point/cellular
  networks
• Mobile broadcasting technologies enable the
  broadcasting to mobile devices
• TV is the most commonly spread broadcast service
• When integrating the broadcast based TV service
  to mobile phones, a single device uses the
  one-to many and point-to-point networks

• Scope
• Scheduled broadcast services
• Main focus on TV and interactive services
• Presened analysis applicable also to other
  non-TV broadcast services

• Methodoly
• Literature survey
• Non structured open discussions with experts

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Layered Model of Mobile Broadcasting

• Developed for the thesis
• Previous studies on mobile broadcasting base on
  vertical approach
• Model used as framework throughout the analysis
• Each layer studied separately
• Main focus on Client Application Layer,
  especially on Mobile TV and possibilities to
  integrate interactive service components to it

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Radio Layer of Mobile Broadcasting

• Five different major mobile broadcasting
  technologies

1. Digital video broadcasting for Handheld (DVB-H)
2. Multimedia Broadcast Multimedia Service (MBMS)
3. Terrestrial Digital Multimedia Broadcasting
   (T-DMB)
4. Integrated Services Digital Broadcast (ISDB-T)
5. Forward Link Only ( FLO )

• Broadcasting technologies provide the high data
  rate downlink and existing cellular networks
• the uplink needed for interacting

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System Layer
Two different system level solutions

1. IP datacasting (DVB-H)
2. MediaFlo (FLO)

• Service Enablers of System Layer
• Service Discovery
• Security
• Purchase Billing

• Generic Services provided by System Layer
• Streaming
• FileCasting
• Intractivity

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Business Environment of Mobile Broadcasting
Generic business model of mobile broadcasting -
presents the functional roles needed in MB -
Companies will act in one or more roles
Division of functional roles in mobile TV pilots

Case Oxford
Case Helsinki
Case Barcelona
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Business Environment of Mobile Broadcasting

• The mapping between functional business roles and
  actors

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Interactivity

• Interactive services in normal TV

1. Pre-existing interactivity
2. 24/7 services
3. Enchanced TV

• Terminal Constraints in Mobile TV services

1. Screen Size
2. Input Device
3. Native Application Set

• Interactive services in mobile TV

1. Simulcasting
2. Enhanced simulcast
3. Mobile TV dedicated content

Mobile TV Terminals
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Interactivity in Mobile TV

• Examples of Interactive Services

• Simulcasting

( from Nokia 7710 during Finnpilot)

• Enhanced Simulcast

( concept service)

• Mobile TV dedicated content

( from Nokia 7710 during Finnpilot)
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Interactivity in Mobile TV

• Presentation of interactive services

1. In a spesific banner area beside picture
2. On top of picture

( concept service)
( concept service)

• Services should be drawn to the screen in
  terminal, not burnt to the picture

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Conclutions

• Services provided by mobile broadcast have affect
  to three dimensions,

• When the broadcasted content is simulcast, a
  consistensy on how the business environment is
  set
• up and how the functional roles are adopted by
  actors involved within the busines can be seen,
  but
• as the broadcasted content diversifies to
  include interaction and non-TV content,
• so do the business models.

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Conclutions

• The co-operation of actors already posessing
  relevant competences, mostly todays broadcasting
  and
• telecommunication operators, is most likely seen
  in vast majority of business models of mobile TV.
  
• It is likely that there will not be a clear
  winner technology in mobile TV on global level
  but the mobile
• broadcasting market will remain geographically
  fragmented.
• Including interactivity to mobile TV has a
  potential but exploiting it successfully requires
  proper
• implementation both from broadcast system and
  terminal side, i.e. integrating the interactive
  services to
• the broadcast feed and ensuring the ease of use
  in terminals.
• Interactive services provided in set-top-boxes
  are not suitable for mobile TV as such, but some
  of the
• interactive service types are applicable to
  mobile TV.
• Interaction should be introduced to mobile TV
  through enhanced simulcast, in practice this
  means
• embedding services like voting, links, chats,
  gambling and gaming to the broadcasted
  programming.
• Because of the lack of empirical data on
  interactive services in mobile TV further study
  is needed.
• The upcoming mobile TV trials and commercial
  solutions give the possibility to experiment with
  
• interactive mobile TV and will provide data that
  can be used in further studies.

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Thank You
Tom Sederlöf Nokia, Multimedia
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Example implementation of MB system capable of
interaction