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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

Kommunikatsiooniteenuste arendusIRT0080

Loeng 5/2008

Avo Otstelekommunikatsiooni õppetool,

TTÜ raadio- ja sidetehnika inst.avo.ots@ttu.ee

video voo lekanne

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
mobiilne multimeedia
Mobiilne multimeedia
  • D A B

http://en.wikipedia.org/wiki/Eureka_147

  • D V B
  • D M B
slide6

Content

Download

Streaming

On-demand

Carousel

Non-live

Live

Clips

Push and store

Video on-demand

Pay TV program

Subscription

Free TV program

p hin uded teenusele
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)
slide8

IP Datacast

IP Datacast & OSI model

sisu sobivus
Sisu sobivus
  • Integration: “Any content on any screen”
kuidas signaali levitada

BROADCAST NETWORK: FROM FIXEDTV …

+18 dBi

Tower A

Tower B

MOBILE NETWORK: FROM MOBILE UNICAST …

+

+

+

+

+

Kuidas signaali levitada
kus ja mis teenus

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
mobile ip tv
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)

slide20

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

slide21
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.

jtc1 mmc
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
teenus v rk ja terminal
Teenus, võrk ja terminal

출처: 삼성전자 발표자료(2007.5)

dvb h

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

dvb t dvb h

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
mitmesageduslik v rk mfn

Üksiku saatja katteala

C1

C3

C3

C11

C9

C3

C5

C9

C5

C7

C1

C3

C1

Teenindusala piir

Mitmesageduslik võrk (MFN)
hesageduslik v rk sfn

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
l pulingid
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/