1. Forecast 2002
DigiTAG Spectrum Matters Task Group J.Kämäräinen Copenhagen 22nd April 2003

2. DVB-T Service Requirements – New Possibilities for DVB-T
Large wide-screen displays or high-definition TV

3. DVB-T Service Requirements – New Possibilities for DVB-T
Mobile TV reception!

4. DVB-T Service Requirements – New Possibilities for DVB-T
Mobile TV
reception -
Singapore buses

5. DVB-T Service Requirements – New Possibilities for DVB-T
Interactivity!

6. DVB-T Service Requirements – New Possibilities for DVB-T
Portable and hand-held
devices with multimedia
and interactivity!

7. DigiTAG Spectrum Matters Workshop Need for DVB-T Service Requirements
Planning Conference to Revise Stockholm 61
Service requirements will determine spectrum requirements:
number and capacity of multiplexes
coverage levels
portable or mobile coverage requirements
possible need for return channel capacity
Service requirements also affect network planning model
Requirements will vary from country to country

8. DigiTAG Task Group on Spectrum Matters – Elements of Service Requirements
Type of Service – e.g. TV, Datacasting. Internet
Coverage – extent and regionality
Capacity – number of multiplexes, or total Mbit/s
Quality and Reliability – including % time availability
Reception mode – fixed, portable and mobile
Receiving equipment – e.g. large plasma displays
Interactivity – use and capacity of return channel
Implementation options:
Transmitter network
DVB-T variant
Planning model (MFN/SFN)

9. Questionnaire - Breadth of Response

10. Questionnaire - Importance of Service Types
High importance to traditional TV and widescreen.
Less than 10% thought that HDTV important
Respondents more committed to IP based services than to Internet TV.

11. Questionnaire - Importance of Convergence
Convergence - the use of multiple technologies to provide a service is seen to be important

12. Questionnaire - Reception Conditions
All respondents assigned some positive need to portable reception

13. Questionnaire - Interactivity - Return channels for DVB-T
Overwhelming conviction that return channel needed - little support for DVB-RCT

14. Questionnaire - Total Capacity Requirements
All responses converted to Mbit/s
No distinction between fixed, portable and mobile reception
No account taken of coverage target

15. Questionnaire – Some Conclusions
Great importance attached to traditional and widescreen TV (but little to HDTV)
All respondents thought that portable reception was of medium or high importance
Overwhelming response that return channel important for DVB-T (but not via DVB-RCT)
90% of respondents think that convergence is of high or medium importance
Majority of respondents see a need for DVB-T to deliver around Mbit/s in their country