The evolutions of the Digital Broadcast Landscape

The evolutions of the Digital Broadcast Landscape

Gerard FARIA (gerard.faria@teamcast.com) Š Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

1

... A lot of suitors !

CMMB CMMB DVB-SH DVB-SH (DVB-H) (DVB-H)

(sTiMi) (sTiMi)

2008 2004 2005 2006 2007 2003 DMB-T DMB-T

(GB20600-2006) (GB20600-2006)

T-DMB T-DMB (S-DMB) (S-DMB)

ISDB-T ISDB-T

S-DMB S-DMB

(OneSeg) (OneSeg)

(T-DMB) (T-DMB)

DVB-H DVB-H (DVB-T) (DVB-T)

UMTS UMTS

MBMS / HSDPA MBMS / HSDPA

MediaFLO MediaFLO

(Qualcomm) (Qualcomm)

GSM GSM

(GPRS) (GPRS)

© Teamcast - 2008

Above 1 GHz

Below 1 GHz

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

ATSC ATSC M/H M/H (ATSC) (ATSC)

13th October 2008

2

“Multimedia Contents to Nomadic Terminals” Plethora of Standards but… (quasi-)all are using COFDM !

Gerard FARIA (gerard.faria@teamcast.com) © Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

3

Transmission: COFDM is everywhere!

DAB

DVB

ISDB

FLO

CDMB

CMMB

1,5 MHz

5/6/7/8 MHz

6/7/8 MHz

6/7/8 MHZ

6/7/8 MHz

2/8 MHz

8K

8K

4K

4K

2K

2K

OFDM symbol

Orthogonal Carrier Spacing

2K

SC 4K

4K

1K Guard Interval

Useful Period

4K 1K

512 256 Time

2K 4K

Bitrate is INDEPENDENT Of the s/c number

f re qu e ncy

8K

With OFDM,

Š Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

4

SSS options (1/3): Frame Preamble DAB D-QPSK

Preamble Null Symbol

Sync Symbol

Data Payload

Signalling Symbol(s)

f re qu e ncy

Time

Frame Preamble : for Synchronisation & Signalling with Null Symbol : DAB/T-DMB, for Synchronisation & Signalling without Null Symbol : FLO (TDM pilots), … DVB-T2 !

© Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

5

SSS options (2/3): Pilots DVB

ISDB

FLO

D-QPSK

OFDM symbol

FFT window Guard Guard Interval Interval

CMMB BPSK

QPSK

QPSK

QPSK

QPSK

16QAM

16QAM

16QAM

16QAM

64QAM

64QAM

Useful Useful Period Period

f re qu e ncy

Time

Pilots spread in Frame : for Synchronisation, Channel Estimation & Signalling : for Synchronisation, Channel Estimation : for Signalling :

© Teamcast - 2008

DVB-H, ISDB-T, CMMB, … DVB-T2 !

FLO (FDM Pilots), … DVB-T2 !

CDMB or DTMB or DMB-TH,

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

6

SSS options (3/3): Symbol Preamble (TDS-OFDM) CDMB 4QAM-NR

OFDM symbol PN Guard Guard Interval Interval

FFT window Useful Useful Period Period

4QAM 16QAM 32QAM 64QAM

f re qu e ncy

Time

Š Teamcast - 2008

PN sequences as OFDM symbol preamble (instead of the classical Cyclic Prefix): for Synchronisation & Channel Estimation : DMB-TH for Signalling : few pilots constituting a low bitrate channel 2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

7

FEC & Interleaving: a lot of solutions!

T-DMB : ISDB-T: DVB-H : FLO : CDMB : CMMB :

DAB-FEC (RS + Virtual Time Interleaver) MPE-FEC (RS + Virtual Time Interleaver)

+ RS (MPEG) RS (MPEG) + RS/Outer Intl RS BCH RS/Outer Intl

+ CC (“Viterbi”) + CC (“Viterbi”) + CC/Inner Interleaver + TURBO + LDPC + LDPC

+ Service Time Interleaver (384 ms) + Sub-Band Interleaver (up to 1 second) + Interlaced Sub-channels (~250 ms) + Time Interleaver (~84 ms & ~255 ms) + 25ms slots within 1s frame

Data to Broadcast

FECs FECs + + Interleavers Interleavers

fre qu en cy

Time

DMB-T

© Teamcast - 2008

ISDB-T (OneSeg)

DVB-H

… DVB-T2 !

FLO

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

CDMB 13th October 2008

8

In Short : Variations around “C” - OFDM “MAC” DATA FEC

Radio Interface

“PHY”

TS Channel Encoder OUTER CODING BC

Outer Intl

INNER CODING CC

Inner Intl

OFDM modulator Time Intl

SYNC ESTIM

SIG

OFDM demodulator

iFFT

Framing/Pilots xK

yK

“PHY” iFFT

Framing/Pilots zK

SIG

SYNC ESTIM

xK

yK

zK

TS Channel Decoder

Time Intl

INNER DECODER Inner Intl

CC

“MAC” DATA FEC

OUTER DECODER Outer Intl

BC

MAC

Channel Encoder

Time Interleave

Framing

Modulation

Channel Bandwidth

T-DMB

RS + Outer Intl (from DVB-T)

CC (per service)

384 ms (per service)

2K 1K ½K ¼K Frame Preamble

D-QPSK

1.5 MHz

ISDB-T

-

RS + Outer Intl CC + Inner Intl

Up to 1 second

8K 4K 2K Pilots

D-QPSK, QPSK, 16QAM, 64QAM

6 / 7 / 8 MHz

DVB-H

MPE-FEC (RS + Time Slice)

RS + Outer Intl CC + Inner Intl

-

8K 4K 2K Pilots

QPSK, 16QAM, 64QAM

5 / 6 / 7 / 8 MHz

DVB-SH

MPE-FEC (RS + Time Slice)

Turbo Code (3GPP2)

~300 ms ~10 seconds

8K 4K 2K Pilots

QPSK, 16QAM

1,75 MHz & 5 / 6 / 7 / 8 MHz

~250 ms

4K TDM & FDM Pilots

QPSK, 16QAM

6 / 7 / 8 MHz

~85 ms ~255 ms

SC or 4K Symbol Preamble

4QAM-NR, 4QAM, 16-32-64 QAM

6 / 7 / 8 MHz

FLO DMB-T (TDS-OFDM)

CMMB

© Teamcast - 2008

RS + Turbo Coder (Outer Interleave per service) -

BCH + LDPC

RS + Outer Intl 25ms slots 4K (8 MHz) 2008 NEMLDPC Summit - The evolutions of the Digital Broadcast Within 1s frame 1K (2Landscape MHz)

BPSK, 8 MHz QPSK, 16QAM 13th October 20082 MHz

9

“Multimedia Contents to Nomadic Terminals” Physics remains Physics… for all transmission systems !

Gerard FARIA (gerard.faria@teamcast.com) © Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

10

The Question of Protocol Stacks...

MULTIMEDIA MULTIMEDIA :: CONTENTS CONTENTS // APPLICATIONS APPLICATIONS // SERVICES SERVICES T-DMB T-DMB

MP4-V MP4-V MP4-A MP4-A MP4-D MP4-D

ISDB-T ISDB-T

MP2-A/V/D MP2-A/V/D MP4-A/V/D MP4-A/V/D

DVB-SH DVB-SH

DVB-H DVB-H

DVB-T DVB-T

DVB-IPDC DVB-IPDC :: IP IP DataCast DataCast SERVICE Convergence SERVICE Convergence

MP4-SL MP4-SL

IP: IP: TRANSPORT TRANSPORT Convergence Convergence

MPEG-TS MPEG-TS

IP IP

IP IP

TS TS

TS TS

TS TS

Satellite Satellite

Terrestrial Terrestrial

encapsulation encapsulation

TS TS FEC FEC (RS) (RS)

TS

T-DAB T-DAB Physical PhysicalLayer Layer

© Teamcast - 2008

MPEG2-MUX MPEG2-MUX

Framing Framing Sub-Channel Sub-Channel

TS TS

TS TS

FLO FLO Physical Physical Layer Layer

ISDB-T ISDB-T Single SingleSegment Segment

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

DVB DVB

DRM DRM

Sub Sub System System

DigitalTV TVServices Services Digital

DAB DAB Digital RADIO RADIO Services Services Digital circuit

MP4-AVC MP4-AVC MP4-BSAC MP4-BSAC MP4-BIFS MP4-BIFS

MediaFLO MediaFLO

TS TS

11

The Question of Mobile performance...

DVB-T vs DVB-H

DVB -H @ FER 5%

(8K - gi 1/4 - 16QAM 2/3 - MPE-FEC 3/4)

DVB -H @ MFER 5%

13,27 Mbps

50,0 dB

φρφ ∆φ∆ = ς ∗ ∗ cos(Φ ) Χ

40,0 dB

30,0 dB

DVB-H MPE-FEC GAIN : 2 to 5 dB (Pedestrian)

Christian Andreas

DOPPLER (1803-1853)

20,0 dB

DVB-H MPE-FEC GAIN : 5 to 9 dB (Mobile)

64QAM 2/3 (20 Mbps)

DVB-H Gain Area

16QAM 2/3 (13 Mbps)

Flat Behaviour Up to Max Speed

DVB-T Mobile Penalty 6 to 12 dB

10,0 dB

QPSK 1/2 (5 Mbps) 0,0 dB

0 Hz 470 MHz UHF Band IV (21) (69)

MHz UHF ©854 Teamcast - Band 2008V

1 Hz

10 Hz

100 Hz

2 km/h 23 km/h 230 km/h 1 km/h 13 of km/h 126 km/h 2008 NEM Summit - The evolutions the Digital Broadcast Landscape

1000 Hz 1840 km/h 1008 km/h 13th October 2008

TU6 TU6 12

The Question of Coverage...

Digital TV transmitter

FOR FIX RECEPTION: Field Strength is Planned to offer the C/N threshold at 10 meters above the Ground Level

But for NOMADIC RECEPTION: Field Strength Shall be available At 1.5 meter Above Ground.

PENALTY: 12 dB (for Outdoor Rx)

Broadcast to NOMADIC Handhelds Terminals : Building Penetration Loss Mobility . Ground level penalty ~ 12 dB . Indoor penalty ~ 8 dB PENALTY : 8 dB (Outcar antenna) PENALTY: 8 dB .Š Mobile penalty (Outcar/Incar) ~ 8 dB / 16 dB (for Indoor Rx) PENALTY : 16Landscape dB (Incar antenna) 2008 NEM Summit - The evolutions of the Digital Broadcast Teamcast - 2008 13 13th October 2008

The Question of Network Topology...

Hybrid Networks

BroadCast Networks

Cellular Networks

FNN F M S

FNN F M S

(MNOs, Broadband) NN F F S M

Cellular?

Broadcast ?

km m Š Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

14

3 KHz

AM Radio Broadcast

[VLF / LF]

300 KHz [MF]

AM Radio Broadcast

3 MHz [HF]

30 MHz

FM Band II

[VHF]

300 MHz [UHF]

TV & Mobile (Band III)

TV & Mobile (Band IV & Band V)

3 GHz [SHF]

30 GHz

[Source : Roke manor Research Ltd – 2007 - « The UK Frequency Allocation Map » ]

The Question of Radio Spectrum…

[EHF] © Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

15

Is there Broadcast Spectrum Not Used ?

Electric Waves

Radio Waves

Visible Light

Infra-Red

Ultra Violet

Gamma Rays

X-Rays

Cosmic Rays

Radio Spectrum

Long Wave Radio

Increasing Coverage Decreasing Bandwidth

3

LF

30 10





100

+

Short Wave Radio

MF

300 kHz

Medium Wave Radio

II III IV & V FM TV TV Radio (VHF) (UHF)

HF

3 1000

VHF

30 MHz 10000

L&S Bands

C Ku Band Band

UHF

Ka Band

SHF

300

3

100000

1000000

Decreasing Coverage Increasing Bandwidth

EHF

30 GHz 10000000

300 100000000

1000000000

Communities (i.e. Telcos / Broadband / Broadcast) generally consider first the spectrum they are operating for their primary services…

But sometimes considers also the one used by an other community…

© Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

16

Where to operate “TV to Mobile” ?

Channel Bandwidth

VHF

UHF

T-DMB

1.5 MHz

Band III

L-Band

ISDB-T

6 / 7 / 8 MHz

Band III

Band IV & V

DVB-H

5 / 6 / 7 / 8 MHz

Band IV & V

DVB-SH

1,75 MHz & 5 / 6 / 7 / 8 MHz

L-Band & S-Band

6 / 7 / 8 MHz

Band IV & V

6 MHz

Band IV & V

6 / 7 / 8 MHz

Band IV & V

8 MHz 2 MHz

Band IV & V L-Band & S-Band

FLO ATSC-MH DMB-T (TDS-OFDM)

CMMB

A nightmare for the Regulators... © Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

17

“Multimedia Contents to Nomadic Terminals” Plethora of offers but…

What do we observe now?

Gerard FARIA (gerard.faria@teamcast.com) © Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

18

The Transmitter Network Question (CAPEX)

Š Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

19

The Business Model Question (CAPEX, RoI & OPEX)

ATSC-MH DVB-H ISDB-Tss T-DMB

Š Teamcast - 2008

DVB-H FLO DVB-SH

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

13th October 2008

20

ModulCast for Mobile Digital TV ®

Easy-to-integrate, compact and truly cost effective technology for transmitter and basestation manufacturers:  High performance Digital TV modulators for T-DMB / DVB-H / FLO / DTMB / CMMB / DVB-T2

ModulCast

 Hierarchical MIP inserters for SFNs,  Mobile DVB‑ T /-H / -SH antenna diversity receivers,  Experimental DVB-H / DVB-SH receivers,  Ultra Low Phase Noise Synthesizers,

All the essential technical bricks needed to build up standard agnostic, high performance transmission systems at competitive pricing.

© Teamcast - 2008

Further information at: www.teamcast.com 21 13th October 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

Thank you for your attention !

Gerard FARIA

. Rennes

Chicago .

(gerard.faria@teamcast.com)

TeamCast Inc. TeamCast 111 West Washington Street IL60602 - CHICAGO (USA) +1 1 312 263 0033 www.teamcast.com

Š Teamcast - 2008

2008 NEM Summit - The evolutions of the Digital Broadcast Landscape

Espace Performance F35769 - SAINT GREGOIRE (FRANCE) +33 2 23 25 26 80 www.teamcast.com

13th October 2008

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