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

Broadcast goes Mobile. Broadcast goes Mobile. From DVB- -T to DVB T to DVB- -H. H. From DVB Gerard POUSSET Gerard POUSSET V.P. marketing V.P. marketing MMC05 January 05 Berlin 1

What is MOBILE TV ? In the car ' In the street ' DVB-T : up to 250 km/h today DVB-H : end 2005 2

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

1. Mobile DVB-T solution : DIVERSITY 4

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) 5

DVB-T Diversity Reference Design Kits and STB MOD 3500 DIVERSITY STB COMPLETE REF DESIGN MOBILE STB DEV 3000-D DIVERSITY FRONT-END REFERENCE DESIGN 6

MOBILE LAB TESTS 7

Modulation parameters in mobility For MOBILE reception, the ROBUSTNESS is not only a matter of C/N, but also of SPEED average C/N 35 Defined in MCP MOTIVATE Average value of C/N HIGHER C/N NOT AVAILABLE IN THE FIELD 30 Used in CONFLUENT INSTINCT 25 SPEED TOO HIGH WORKING RECEPTION AREA 20 15 C/N TOO WEAK 10 5 0 20 40 60 80 100 120 140 160 180 Fd DOPPLER frequency 8

DIB3000MC performance in DVB-T 8k 16QAM CR2/3 GI1/8 (German mode) 40 35 Diversity_2 Single DIB3000MC DIB3000MC 30 ] [dB 25 /N C 20 8 dB 15 10 0 20 40 60 80 100 120 140 fD [Hz] V [k m /h ] Fc = 498 MHz (Ch. 24) 0 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 ] Fc = 650 MHz (Ch. 43) 0 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 ] Fc = 802 MHz (Ch. 62) 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 9

DiB3000MC performance in DVB-T 8k 64QAM CR2/3 GI1/8 (French mode) 4 0 3 5 S in g le D iv e r s ity _ 2 D IB 3 0 0 0 M C D IB 3 0 0 0 M C 3 0 C/N [dB] 2 5 9 dB 2 0 1 5 1 0 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 fD [H z ] V [k m /h ] Fc = 498 MHz (Ch. 24) 0 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 ] Fc = 650 MHz (Ch. 43) 0 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 ] Fc = 802 MHz (Ch. 62) 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 10

2. From DVB-T to DVB-H 11

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 Must be as close as possible to DVB-T Various modes… (16/64 QAM…). Need to work with single receiver for Most of them reach high mobility handheld devices – MPE FEC with diversity (2 receivers) TIME SLICING (allows a trade-off Important power consumption due to the high bit rate received in between power consumption and the continuous mode bit rate needed by the application) Marketing/strong Limited awareness of compatibility awareness/contribution by large with mobile application/image players 12

Demod Step1 Demod Step2 Demod Step3 DVB-T HW + DVB-H SW DVB-T HW + DVB-H FPGA DVB-H chip ShowCast Tablet PC DVB-T USB2 MPE-FEC ! Shown at IBC 2004, (Amsterdam, Sept 10th-14th) ! Used for DVB validation task force (Berlin, Oct 04) Laptop ! Used in INSTINCT project (TDF, T-System, IRT,….) MPE-FEC DVB-T ! Integrates USB2.0 DVB-T module USB2 ! NDIS driver with DVB-H MPE-FEC implementation ! Runs Windows Media 9 , H263/264 Codec 13

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 Host interface DVB-T USB2 FPGA DIB3000MC or Tuner DVB-T MPE-FEC SAW demodulator Time Slicing MPEG2-TS Power Management SRAM NIM 7000 DVB-T USB2 14

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 15

DVB-T / DVB-H DIB3000MC performance in TU6 DVB-T : 8k 16QAM CR2/3 GI1/8 DVB-H : MPE-FEC : 3/4 40 35 Single DIB3000MC in DVB-T mode 30 ] [dB MPE-FEC Table Portability 25 C/N Error Rate : 10 -3 Single DIB3000MC improvement ESR10 in DVB-H mode with MPE-FEC 3/4 20 8 dB 15 Diversity_2 ESR10 DIB3000MC in DVB-T mode 10 0 20 40 60 80 100 120 140 fD [Hz] V [k m /h ] Fc = 498 MHz (Ch. 24) 0 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 ] Fc = 650 MHz (Ch. 43) 0 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 ] Fc = 802 MHz (Ch. 62) 0 2 0 4 0 6 0 8 0 1 0 0 1 2 0 1 4 0 1 6 0 Mobility improvement 16

Demod Step1 Demod Step2 Demod Step3 DVB-T HW + DVB-H SW DVB-T HW + DVB-H FPGA DVB-H chip DVB-H FireFly Block Diagram WBPR DVB-T USB2 FPGA Internal Demod control Host processor Interf select or MPEG2-TS DVB-T DVB-H MAC USB2 Interface type select 17

Demod Step1 Demod Step2 Demod Step3 DVB-T HW + DVB-H SW DVB-T HW + DVB-H FPGA DVB-H chip DVB-H front-end block diagram with a base band tuner output Low speed Firefly ADC Antenna DVB-T Host Processor USB2 LPF I ADC WBD 0Y CPU AGC or LNA VCO Q ADC 90Y TS FPGA LPF Tuner BB AGC RF AGC DVB-T USB2 18

3. CONCLUSION : Mobile DVB-T / DVB-H in European Projects 19

MOBILE DVB-T / DVB-H in EUROPEAN PROJECT Project name Tested application Conclusion DVB-T DVB-T is usable in fixed application VALIDATE Mobile DVB-T DVB-T mobile is possible in QPSK MOTIVATE Mobile DVB-T in cars DVB-T mobile is possible for all MCP modulations with Diversity Integrated Mobile DVB-T receivers DVB-T mobile Diversity receivers tested CONFLUENT with success in cars, up to 150 km/h DVB-H / DVB-T integrated DVB-H tested with success in indoor INSTINCT receivers and outdoor with early prototypes DVB-H tests (continuation of the Results in 2005 WING-TV DVB-H Validation Task force) 20