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Kommunikatsiooniteenuste arendus IRT0080

Kommunikatsiooniteenuste arendus IRT0080. Loeng 2/2009 Avo Ots telekommunikatsiooni õppetool, TTÜ raadio- ja sidetehnika inst. avots@lr.ttu.ee. Mobiilne multimeedia. D A B http://en.wikipedia.org/wiki/Eureka_147 D V B D M B. Content. Download. Streaming. On-demand. Carousel. Non-live.

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Kommunikatsiooniteenuste arendus IRT0080

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  1. Kommunikatsiooniteenuste arendusIRT0080 Loeng 2/2009 Avo Otstelekommunikatsiooni õppetool, TTÜ raadio- ja sidetehnika inst.avots@lr.ttu.ee

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

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

  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. IP Datacast IP Datacast & OSI model

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

  7. Mobiili kasutus

  8. Signaali levitamine

  9. BROADCAST NETWORK: FROM FIXEDTV … +18 dBi Tower A Tower B MOBILE NETWORK: FROM MOBILE UNICAST … + + + + + Kuidas signaali levitada

  10. Mobile TV areng

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

  12. Side tehnoloogiad ja kulud

  13. Kuhu areng

  14. Multimedia Broadcast Multicast Service

  15. Üksik vs multisaade

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

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

  18. 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.

  19. 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

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

  21. T-DMB

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

  23. DVB-H = DVB-T + täiendus

  24. DVB-H parameetrid

  25. Transpordivood tükeldusele

  26. Aja liistakud

  27. DVB-H kasutamine

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

  29. DVB-T raadiokanal

  30. võimsus aeg sagedus Keerukas modulatsioon

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

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

  33. 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_Broadcasting http://eng.t-dmb.org/ http://www2.rohde-schwarz.com/en/products/broadcasting/technologies/digital_broadcast/

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