1. 1 Kommunikatsiooniteenuste arendus IRT0080 Loeng 2/2009 Avo Ots telekommunikatsiooni õppetool, TTÜ raadio- ja sidetehnika inst. avots@lr.ttu.ee

2. 2 Mobiilne multimeedia D A B http://en.wikipedia.org/wiki/Eureka_147 D V B D M B

3. 3 Content Download Streaming On-demandCarousel Non-liveLive Pay TV program Video on-demand Push and store Clips Subscription Free TV program

4. 4 Põhinõuded teenusele The service must be available outdoor, indoor and in moving vehicle Public channels and pay channels are a must, special channels desirable Radio must be available Wide coverage (urban, suburban and main roads)

5. 5 IP Datacast & OSI model IP Datacast

6. 6 Sisu sobivus Integration: “Any content on any screen”

7. 7 Mobiili kasutus

8. 8 DVB-H Digital Video Broadcasting Handhelds T-DMB Terrestrial Digital Multimedia Broadcasting S-DMB Satellite Digital Multimedia Broadcast MBMS Multimedia Broadcast Multicast Service MediaFlo Media Forward Link Only Region Europe, USA, Australia South Korea South Korea, Japan Europe, South Asia USA Video Codec MPEG-4 Channels/ 128kbps 603-59-27350-70 Cell Size17-40km40-60km3-700km2-3 km2-10km Power Reduction Time slicing Bandwidth shrinking Bandwidth Shrinking Time slicing Time division multiplexing Transport stream MPEG TS, IPMPEG TSIP MPEG, IP

9. 9 Signaali levitamine

10. 10 Kuidas signaali levitada +18 dBi Tower ATower B BROADCAST NETWORK: FROM FIXED TV … MOBILE NETWORK: FROM MOBILE UNICAST … ++ + ++

11. 11 Mobile TV areng

12. 12 Kus ja mis teenus Sharing (one-to-some) Service Coverage area User density 3G MBMS DVB-H Multicast Publishing (one-to-many) 3G P-t-P Boundary Area

13. 13 Side tehnoloogiad ja kulud

14. 14 Kuhu areng

15. 15 Multimedia Broadcast Multicast Service

16. 16 Üksik vs multisaade

17. 17 Mobile (IP)TV Kandev teenus (Bearer) Standardi variant ja levitamine UDP(TCP)/IP Multicasting (IETF): Multicast Routing Protocols, IGMP WiMax (MBS) DVB (DVB-H) DVB (CMBS) Qualcom (MediaFLO) OMA (BCAST) JTC1 (MMC) 3GPP (MBMS) 3GPP2 (BCMCS)

18. 18 Content Provisioning Content Aggregation Provisioning of Datacast Service Content Operation of Datacast Network User Operation of Cellular Network Provisioning of Cellular Services Provisioning of E-Commerce Services Interaction Service Management IP Datacast System Konvergents

19. 19 IPDC The term IP Datacasting (IPDC) is used in DVB-H for the technical elements required to send IP packets over DVB-H broadband downstream channel combined with a return channel over a mobile communications network such as GPRS or UMTS. DVB-HIPGPRSUMTS

20. 20 JTC1/MMC MMC (Mobile Multicast Communications) –ISO/IEC JTC1/SC6/WG7 (ISO/IEC 24793) MMC-1 (24793-1): MMC Framework MMC-2 (24793-2): MMC Protocol over Native IP Multicast Network MMC-3 (24793-3): MMC Protocol over Overlay Multicast Network

21. 21 Teenus, võrk ja terminal 출처 : 삼성전자 발표자료 (2007.5)

22. 22 T-DMB

23. 23 DVB-H. SIGNALLING 4k-MODE DVB-T CODER/MODULATOR TRANSPORT STREAM MULTIPLEXER TIME SLICING ERROR PROTECTION (MPE-FEC) IP EN- CAPSULATION DVB-H SERVICES OPTIONAL: DVB-T SERVICES

24. 24 DVB-H = DVB-T + täiendus

25. 25 DVB-H parameetrid

26. 26 Transpordivood tükeldusele

27. 27 Aja liistakud

28. 28 DVB-H kasutamine

29. 29 DVB-T & DVB-H e MUX MPEG-2 TV Service IP-backbone DVB-H IPE -Time Slicing -MPE-FEC DVB Multiplexer -For LP MPEG-2 HP LP Full DVB-H Terminal - Support both TS and MPE-FEC - Power saving and performance DVB-H Time Slice Terminal - Support for Time Slicing - Power saving DVB-T Tx - DVB-H signalling

30. 30 DVB-T raadiokanal

31. 31 Keerukas modulatsioon aeg sagedus võimsus

32. 32 C1 C5 C1 C3 C7 C9 C11 C1 C9 C5 C3 Teenindusala piir C3 Üksiku saatja katteala Mitmesageduslik võrk (MFN)

33. 33 Teenindusala piir C1 Katteala piir Ühesageduslik võrk (SFN) Kõik saatjad kasutavad võrgus sama sageduskanalit Saatjad kattealas ei saa töötada iseseisvalt – nad peavad edastama sama multipleksisisu

34. 34 Lõpulingid http://www.telecomview.info/ http://www.dvb.org/ http://www.dvb-h.org/ http://en.wikipedia.org/wiki/OMA_BCAST http://en.wikipedia.org/wiki/Digital_Multimedia_Broa dcasting http://eng.t-dmb.org/ http://www2.rohde- schwarz.com/en/products/broadcasting/technologies/di gital_broadcast/