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Kommunikatsiooniteenuste arendus IRT0080

Kommunikatsiooniteenuste arendus IRT0080. Loeng 5/2008 Avo Ots telekommunikatsiooni õppetool, TTÜ raadio- ja sidetehnika inst. avo.ots@ttu.ee. Radio Network Controller. RNC. High bandwidth. Media Server (Pre-Encoded Video). Time-varying with limited data rates.

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Kommunikatsiooniteenuste arendus IRT0080

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  1. Kommunikatsiooniteenuste arendusIRT0080 Loeng 5/2008 Avo Otstelekommunikatsiooni õppetool, TTÜ raadio- ja sidetehnika inst.avo.ots@ttu.ee

  2. Radio Network Controller RNC High bandwidth Media Server (Pre-Encoded Video) Time-varying with limited data rates MAC Scheduling at Base Station Mobile User Mobile User Video vooülekanne

  3. Mobiilside firmadelt algus...

  4. Mobiili kasutus

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

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

  7. 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)

  8. IP Datacast IP Datacast & OSI model

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

  10. Signaali levitamine

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

  12. Mobile TV areng

  13. 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

  14. Side tehnoloogiad ja kulud

  15. Kuhu areng

  16. Multimedia Broadcast Multicast Service

  17. Üksik vs multisaade

  18. 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)

  19. 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

  20. 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.

  21. 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

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

  23. T-DMB

  24. 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

  25. DVB-H = DVB-T + täiendus

  26. DVB-H parameetrid

  27. Transpordivood tükeldusele

  28. Aja liistakud

  29. DVB-H kasutamine

  30. 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

  31. DVB-T raadiokanal

  32. võimsus aeg sagedus Keerukas modulatsioon

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

  34. 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

  35. 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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