Mobile Digital Broadcasting
Democratizing Innovation
François Lefebvre, Communications Research Centre Canada

Mobile Convergence
François Lefebvre, Communications Research Centre Canada

One-to-Many Telecom
Specialized Infrastructure
Efficiency: Spectrum, $/bit
Head of the Long Tail
Very large audiences
Live
François Lefebvre, Communications Research Centre Canada

Standards
François Lefebvre, Communications Research Centre Canada

DAB / DMB
Features
High speed mobility
Capacity: 1.5 Mbps / channel ( 16 Gb / day )
High bitrate AV & Data:
Typical video to mobile screen: 384-512 kbps
Spectrum:
Band III : 174 to 240MHz
L-Band : 1452 to 1492MHz
Modulation: COFDM
Single Frequency Networks
François Lefebvre, Communications Research Centre Canada

CRC DAB Implementation
Transmission
François Lefebvre, Communications Research Centre Canada

Typical Tx Rack
François Lefebvre, Communications Research Centre Canada

François Lefebvre, Communications Research Centre Canada

François Lefebvre, Communications Research Centre Canada

François Lefebvre, Communications Research Centre Canada

Software Defined Radio
François Lefebvre, Communications Research Centre Canada

Software Building Blocks
François Lefebvre, Communications Research Centre Canada

Pre-Configured Software
François Lefebvre, Communications Research Centre Canada

“One Click” Transmitter
François Lefebvre, Communications Research Centre Canada

Low Cost Broadcast Tx
François Lefebvre, Communications Research Centre Canada

Coverage Simulation
François Lefebvre, Communications Research Centre Canada

CRC DAB Implementation
Reception
François Lefebvre, Communications Research Centre Canada

Colliding Business Models
?
MNO
Broadcaster
Pay-TV
FTA-TV
François Lefebvre, Communications Research Centre Canada

Open Handhelds (2007)
François Lefebvre, Communications Research Centre Canada

No Broadcasting Stack!
François Lefebvre, Communications Research Centre Canada

Openmokast
Receiver control
Demultiplexing
Application
decoding
Presentation
François Lefebvre, Communications Research Centre Canada

Adapt Openmoko Device
François Lefebvre, Communications Research Centre Canada

100$ 3D Print
François Lefebvre, Communications Research Centre Canada

Adapt Openmoko Device
François Lefebvre, Communications Research Centre Canada

Openmokast Prototype
François Lefebvre, Communications Research Centre Canada

Screenshots
François Lefebvre, Communications Research Centre Canada

Demo
http://www.youtube.com/crcmmb
François Lefebvre, Communications Research Centre Canada

Next ?
• LiveCD: Support more standards: ATSC/MH, …
• Openmokast: Released TODAY as GPL code
• Openmokast: Bcast chipsets into open phones
• Openmokast: Port to Android
• New Applications
• OpenBTS as return link
• Broadcast apps in “App Stores”
• Micro-broadcasting: events,…
• Community broadcasting, remote areas,…
• …?
François Lefebvre, Communications Research Centre Canada

Thank you!
PROJECTS
openmokast.org
mmbTools.crc.ca
www.crc.ca/mmb
BLOG
Broadcasting20.org
francois.lefebvre@crc.ca
François Lefebvre, Communications Research Centre Canada