Notification Framework for DVB-H
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Notifications provide a way to deliver messages to recipients in digital television broadcasting over DVB-H. Notifications can be used for system messages, emergency alerts, service information updates, and more. A notification framework defines how notification messages are structured, delivered either synchronously with content or asynchronously via file delivery, and integrated into the DVB-H architecture. Notifications allow moving beyond passive consumption of services to more active interactions for users.
Notification Framework for DVB-H
- 1. NOTIFICATIONS: SIMPLE AND POWERFUL ENHANCEMENT FOR SERVICES OVER DVB-H Notification framework for DVB-H IP Datacasting Adrian Hornsby Tampere University of Technology Multimedia Group
- 2. DVB-H – IPDCv2 and beyond ... Nokia funded project Dr. Imed Bouazizi – NRC Tampere Pr. Irek Defee - TUT May 2007 -> December 2007 Contribute to DVB standardisation Notification Framework Group, TM-CBMS 06/06/09
- 3. Outlines ... What is DVB-H ? What is IP datacasting over DVB-H ? Actual limitation of IP datacasting From passive to active What are notifications ? Notification framework Notification message Delivery ( Non- and Synchronized) Notification in DVB-H architecture Future ... 06/06/09
- 4. What is DVB-H ? Provides digital TV to mobile devices Combines traditional TV broadcast standards with elements specific to handheld devices mobility, smaller screens and antennas, indoor coverage and battery consumption. Transmission of Data mainly as IP frames Bridging Digital world with IP world New video compression scheme (H.264) with lower bitrate and for smaller screen size approx. 390 Kbit/s per stream (MPEG2 34Mbit/s)
- 5. What is IP datacasting over DVB-H ? Introduced for bridging the Digital TV world with IP world New data organisation system based on Internet Protocol (IP) Data put into IP packets as in other IP based network (as opposed to DVB-T) Enables more complex data transmission other than just A/V content 06/06/09
- 6. What is IP datacasting over DVB-H ? 06/06/09 DVB-H codec MPE-FEC MPE Time-Slicing MPEG2 MPEG2 MPEG2 MUX IP streams DVB-H modulator QPSK 16 QAM 64 QAM 8K 4K 2K TPS bits UHF amplifier TS RF signal IP
- 7. Actual Limitation of IPDC over DVB-H Passive consumption of services not different from traditionnal living room TV No or Limited interaction (SMS) Full potential not used 06/06/09 Provider Content User
- 8. From passive to active ... 06/06/09 User Starts DVB-H receiver Check Electronic Service Guide Select Service Consume Service Message to User Action
- 9. What are Notifications ? Notification is a means to deliver messages to a set of recipients Potential applications General system information messages Critical or Emergency messages Service Related information (availability, schedule change, ...) General services annoucement (new service available, breaking news, ...) Specific Service (news and sport report, voting function, weather forecast in a specific location, ...) Download, update or upgrade annoucement Etc ... 06/06/09 SYSTEM BREAK DOWN TSUNAMI ALERT FINLAND – SWEDEN Hockey Final New schedule Sunday 16h on Channel 2 Save in agenda Ignore !!Breaking News !! HOCKEY FINAL RESULT Finland 6 : Sweden 4 Ignore Read More VOTE for Hockey Final MVP player Ignore VOTE
- 10. Notification Framework 06/06/09 Services Protocols Channels Components
- 11. Notifications Framework 06/06/09 Generic Message Part Application Specific Message Part Media Object (e.g. Audio file) Media Object (e.g. Image file) MessageID ---------------------------------------- Version ---------------------------------------- NotificationPayloadRef ---------------------------------------- MediaObjectRef ---------------------------------------- RelatedToRef ---------------------------------------- ServiceRef ---------------------------------------- ESGRef ---------------------------------------- TimingInformation Notification Message
- 12. Notification Transport Encapsulation Container MIME multipart Aggregation 06/06/09
- 13. Non -Synchronized Delivery FLUTE – File Delivery over Unidirectional Transport A B C D FDT Receiver Receiver gets content of the carousel from the FDT Receiver can select which message to download 06/06/09 A B C D
- 14. RTP notification stream RTP audio stream RTP video stream Notification action Synchronized Delivery Delivery Method 1 -> Short Message Delivery Method 2 -> Long Message, Split Notification message RTP notification stream RTP audio stream RTP video stream Notification action Notification Trigger FLUTE notification stream Notification Content RTP – Transport Protocol for Real-Time application -> Payload format for notification messages 06/06/09
- 15. ESG 1 Service 1 SAN SRN Audio Video Service 1 Notifications Channels 06/06/09 Service 2 EDN PDN (NDN) PSI/SI Bootstrap
- 16. Interaction HTTP 1.1 POST combined with XML
- 17. Future Current IPDC Phaze 2 - contributions for the Dialogue over interactive channel Implementation Guidelines Social notifications Home or personal broadcast network User to user(s) Device to device(s) notifications Device to user(s) notifications Notifications for Heterogeneous Networks 06/06/09
- 18. Thank You !!! Questions ?? 06/06/09