Broadcast goes Mobile. Broadcast goes Mobile. From DVB- -T to DVB - - PowerPoint PPT Presentation

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MMC05 January 05 Berlin

Broadcast goes Mobile. Broadcast goes Mobile. From DVB From DVB-

• T to DVB

T to DVB-

• H.

H.

Gerard POUSSET Gerard POUSSET V.P. marketing V.P. marketing

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What is MOBILE TV ?

In the car '

DVB-T : up to 250 km/h today

In the street '

DVB-H : end 2005

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OUTLINE

1. Mobile DVB-T Diversity solutions 2. From DVB-T to DVB-H 3. Conclusion

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• 1. Mobile DVB-T solution : DIVERSITY

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DIB3000-MC : Enhanced DVB-T demodulator IC for mobile environments

! Robust Analog Gain Control : Large and linearized

dynamic range for low and high field strengths ! Diversity combining ! Mobile features : : Dynamic Guard interval positioning : Accurate channel estimation (slow and fast fadings) : Doppler Effect compensation (up to 120 Hz in single mode) ! Less than 0.5 dB implementation margin from theory (Gaussian, Rice, Rayleigh)

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DVB-T Diversity Reference Design Kits and STB

DIVERSITY FRONT-END REFERENCE DESIGN DEV 3000-D MOD 3500 COMPLETE REF DESIGN MOBILE STB DIVERSITY STB

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MOBILE LAB TESTS

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Modulation parameters in mobility

For MOBILE reception, the ROBUSTNESS is not only a matter of C/N, but also of SPEED

5 10 15 20 25 30 35 20 40 60 80 100 120 140 160 180 WORKING RECEPTION AREA HIGHER C/N NOT AVAILABLE IN THE FIELD C/N TOO WEAK SPEED TOO HIGH average C/N Fd DOPPLER frequency Defined in MCP MOTIVATE Used in CONFLUENT INSTINCT Average value of C/N

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DIB3000MC performance in DVB-T 8k 16QAM CR2/3 GI1/8 (German mode)

2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 1 8 0 2 0 0 2 2 0 2 4 0 2 6 0 2 8 0 V [k m /h ] 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 1 8 0 2 0 0 V [k m /h ] 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 V [k m /h ]

Fc = 498 MHz (Ch. 24) Fc = 650 MHz (Ch. 43) Fc = 802 MHz (Ch. 62)

10 15 20 25 30 35 40 20 40 60 80 100 120 140

fD [Hz] C /N [dB ]

Single DIB3000MC Diversity_2 DIB3000MC

8 dB

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DiB3000MC performance in DVB-T 8k 64QAM CR2/3 GI1/8 (French mode)

2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 1 8 0 2 0 0 2 2 0 2 4 0 2 6 0 2 8 0 V [k m /h ] 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 1 8 0 2 0 0 V [k m /h ] 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 V [k m /h ]

Fc = 498 MHz (Ch. 24) Fc = 650 MHz (Ch. 43) Fc = 802 MHz (Ch. 62)

1 0 1 5 2 0 2 5 3 0 3 5 4 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 fD [H z ] C/N [dB] S in g le D IB 3 0 0 0 M C D iv e r s ity _ 2 D IB 3 0 0 0 M C

9 dB

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• 2. From DVB-T to DVB-H

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New : The DVB-H approach & objectives

• DVB-H : New DVB-T based standard since Q4/2002 to develop broadcast

services (including TV) on mobile phones

• DVB-H = Mobile DVB-T + Time Slicing + MPE-FEC

DVB-T: the constraints to mobility DVB-H targets

Various modes… (16/64 QAM…). Most of them reach high mobility with diversity (2 receivers) Must be as close as possible to DVB-T Need to work with single receiver for handheld devices – MPE FEC Important power consumption due to the high bit rate received in continuous mode

TIME SLICING (allows a trade-off

between power consumption and the bit rate needed by the application) Limited awareness of compatibility with mobile application/image Marketing/strong awareness/contribution by large players

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! Shown at IBC 2004, (Amsterdam, Sept 10th-14th) ! Used for DVB validation task force (Berlin, Oct 04) ! Used in INSTINCT project (TDF, T-System, IRT,….) ! Integrates USB2.0 DVB-T module ! NDIS driver with DVB-H MPE-FEC implementation ! Runs Windows Media 9 , H263/264 Codec

Demod Step1 Demod Step2 Demod Step3

DVB-T HW + DVB-H SW DVB-T HW + DVB-H FPGA

DVB-H chip

DVB-T USB2

Laptop MPE-FEC Tablet PC MPE-FEC

DVB-T USB2

ShowCast

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Demod Step1 Demod Step2 Demod Step3

DVB-T HW + DVB-H SW DVB-T HW + DVB-H FPGA

DVB-H chip

“NIM700” DVB-H Board

DVB-T USB2 DVB-T USB2

Tuner

DIB3000MC DVB-T demodulator SAW

FPGA

MPE-FEC Time Slicing SRAM Power Management Host interface

• r

MPEG2-TS NIM 7000

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Demod Step1 Demod Step2 Demod Step3

DVB-T HW + DVB-H SW DVB-T HW + DVB-H FPGA

DVB-H chip

“NIM700” DVB-H Board

DVB-T USB2

FPGA

DVB-T USB2

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DVB-T / DVB-H DIB3000MC performance in TU6 DVB-T : 8k 16QAM CR2/3 GI1/8 DVB-H : MPE-FEC : 3/4

Mobility improvement

2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 1 8 0 2 0 0 2 2 0 2 4 0 2 6 0 2 8 0 V [k m /h ] 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 1 8 0 2 0 0 V [k m /h ] 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 V [k m /h ]

Fc = 498 MHz (Ch. 24) Fc = 650 MHz (Ch. 43) Fc = 802 MHz (Ch. 62)

8 dB

10 15 20 25 30 35 40 20 40 60 80 100 120 140

fD [Hz] C/N [dB ]

Single DIB3000MC in DVB-T mode Diversity_2 DIB3000MC in DVB-T mode

Single DIB3000MC in DVB-H mode with MPE-FEC 3/4 MPE-FEC Table Error Rate : 10-3 ESR10 ESR10 Portability improvement

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Demod Step1 Demod Step2 Demod Step3

DVB-T HW + DVB-H SW DVB-T HW + DVB-H FPGA

DVB-H chip

DVB-T USB2 DVB-T USB2

FPGA

DVB-H MAC

Interface type select Host processor

• r MPEG2-TS

Internal Demod control WBPR

Interf select

DVB-H FireFly Block Diagram

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Demod Step1 Demod Step2 Demod Step3

DVB-T HW + DVB-H SW DVB-T HW + DVB-H FPGA

DVB-H chip

DVB-T USB2 DVB-T USB2

FPGA

LNA Antenna

LPF

VCO

0Y 90Y

LPF

WBD

Tuner

RF AGC BB AGC

I ADC Q ADC

Firefly

Low speed ADC

AGC CPU Host Processor

• r

TS

DVB-H front-end block diagram with a base band tuner output

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• 3. CONCLUSION : Mobile DVB-T / DVB-H in European Projects

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Project name Tested application Conclusion VALIDATE

DVB-T DVB-T is usable in fixed application

MOTIVATE

Mobile DVB-T DVB-T mobile is possible in QPSK

MCP

Mobile DVB-T in cars DVB-T mobile is possible for all modulations with Diversity

CONFLUENT

Integrated Mobile DVB-T receivers DVB-T mobile Diversity receivers tested with success in cars, up to 150 km/h

INSTINCT

DVB-H / DVB-T integrated receivers DVB-H tested with success in indoor and outdoor with early prototypes

WING-TV

DVB-H tests (continuation of the DVB-H Validation Task force) Results in 2005

MOBILE DVB-T / DVB-H in EUROPEAN PROJECT