the evolutions of the digital broadcast landscape
DESCRIPTION
by Gerard Faria - teamcastTRANSCRIPT
© © Teamcast - 2008Teamcast - 2008
The evolutions of the The evolutions of the Digital Broadcast LandscapeDigital Broadcast Landscape
Gerard FARIA Gerard FARIA ([email protected])([email protected])
13th October 200813th October 2008 112008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
© © Teamcast - 2008Teamcast - 2008
... A lot of suitors !... A lot of suitors !
13th October 200813th October 2008 222008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
S-DMBS-DMB(T-DMB)(T-DMB)
DVB-HDVB-H(DVB-T)(DVB-T)
ISDB-TISDB-T(OneSeg)(OneSeg)
UMTSUMTSMBMS / HSDPAMBMS / HSDPA
GSMGSM(GPRS)(GPRS)
MediaFLOMediaFLO(Qualcomm)(Qualcomm)
Above Above 1 GHz1 GHz
Below Below 1 GHz1 GHz
DMB-TDMB-T(GB20600-2006)(GB20600-2006)
T-DMBT-DMB(S-DMB)(S-DMB)
DVB-SHDVB-SH(DVB-H)(DVB-H)
CMMBCMMB(sTiMi)(sTiMi)
ATSC M/HATSC M/H(ATSC)(ATSC)
200420042005200520062006200720072003200320082008
© © Teamcast - 2008Teamcast - 2008 2008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape 3313th October 200813th October 2008
““Multimedia Contents to Nomadic Terminals” Multimedia Contents to Nomadic Terminals”
Plethora of Standards but…Plethora of Standards but…
(quasi-)all are using COFDM ! (quasi-)all are using COFDM !
Gerard FARIA Gerard FARIA ([email protected])([email protected])
© © Teamcast - 2008Teamcast - 2008
Transmission: COFDM is everywhere!Transmission: COFDM is everywhere!
13th October 200813th October 2008 442008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
GuardGuardIntervalInterval
UsefulUsefulPeriodPeriod
OFDM symbolOFDM symbolOrthogonalOrthogonalCarrierCarrierSpacingSpacing
TimeTime
frequ
ency
frequ
ency
With OFDM,With OFDM,Bitrate isBitrate is
INDEPENDENTINDEPENDENTOf the s/c numberOf the s/c number
2K2K4K4K8K8K
DABDAB DVBDVB ISDBISDB FLOFLO CDMBCDMB CMMBCMMB1,5 MHz1,5 MHz 5/6/7/8 5/6/7/8
MHzMHz6/7/8 6/7/8 MHzMHz
6/7/8 6/7/8 MHZMHZ
6/7/8 6/7/8 MHzMHz 2/8 MHz2/8 MHz
8K8K 8K8K SCSC4K4K 4K4K 4K4K 4K4K 4K4K
2K2K 2K2K 2K2K1K1K 1K1K512512256256
© © Teamcast - 2008Teamcast - 2008
SSS options (1/3): Frame PreambleSSS options (1/3): Frame Preamble
13th October 200813th October 2008 552008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
Frame Preamble :Frame Preamble :for Synchronisation & Signallingfor Synchronisation & Signalling with Null Symbol :with Null Symbol : DAB/T-DMB, DAB/T-DMB, for Synchronisation & Signallingfor Synchronisation & Signalling without Null Symbol :without Null Symbol : FLO (TDM pilots), … DVB-T2 !FLO (TDM pilots), … DVB-T2 !
NullNullSymbolSymbol
SignallingSignallingSymbol(s)Symbol(s)
SyncSyncSymbolSymbol
TimeTime
frequ
ency
frequ
ency
DABDABD-QPSKD-QPSK
Preamble Data Payload
© © Teamcast - 2008Teamcast - 2008
SSS options (2/3): PilotsSSS options (2/3): Pilots
13th October 200813th October 2008 662008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
Pilots spread in Frame :Pilots spread in Frame :for Synchronisation, Channel Estimation & Signalling : for Synchronisation, Channel Estimation & Signalling : DVB-H, ISDB-T, CMMB, … DVB-T2 ! DVB-H, ISDB-T, CMMB, … DVB-T2 ! for Synchronisation, Channel Estimation :for Synchronisation, Channel Estimation : FLO (FDM Pilots), … DVB-T2 !FLO (FDM Pilots), … DVB-T2 !for Signalling : for Signalling : CDMB or DTMB or DMB-TH, CDMB or DTMB or DMB-TH,
GuardGuardIntervalInterval
UsefulUsefulPeriodPeriod
OFDM symbolOFDM symbolFFTFFT
windowwindow
TimeTime
frequ
ency
frequ
ency
DVBDVB ISDBISDB FLOFLO CMMBCMMBD-QPSKD-QPSK BPSKBPSK
QPSKQPSK QPSKQPSK QPSKQPSK QPSKQPSK16QAM16QAM 16QAM16QAM 16QAM16QAM 16QAM16QAM
64QAM64QAM 64QAM64QAM
© © Teamcast - 2008Teamcast - 2008
SSS options (3/3): Symbol Preamble (SSS options (3/3): Symbol Preamble (TDS-OFDMTDS-OFDM))
13th October 200813th October 2008 772008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
GuardGuardIntervalInterval
UsefulUsefulPeriodPeriod
OFDM symbolOFDM symbol
TimeTime
frequ
ency
frequ
ency
PNPN FFTFFTwindowwindow
CDMBCDMB4QAM-NR4QAM-NR
4QAM4QAM16QAM16QAM32QAM32QAM64QAM64QAM
PN sequences as OFDM symbol preamble (instead of the classical Cyclic Prefix):PN sequences as OFDM symbol preamble (instead of the classical Cyclic Prefix):for Synchronisation & Channel Estimation : for Synchronisation & Channel Estimation : DMB-THDMB-THfor Signalling : few pilots constituting a low bitrate channelfor Signalling : few pilots constituting a low bitrate channel
© © Teamcast - 2008Teamcast - 2008
FEC & Interleaving: a lot of solutions!FEC & Interleaving: a lot of solutions!
13th October 200813th October 2008 882008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
Data to BroadcastData to Broadcast
FECs + InterleaversFECs + Interleavers
TimeTime
frequ
ency
frequ
ency
DMB-DMB-TT
DVB-HDVB-H… … DVB-T2 !DVB-T2 ! FLOFLO CDMBCDMBISDB-T ISDB-T
(OneSeg(OneSeg))
T-DMB :T-DMB : DAB-FEC (RS + Virtual Time Interleaver) DAB-FEC (RS + Virtual Time Interleaver) + RS (MPEG) + RS (MPEG) + CC (“Viterbi”) + CC (“Viterbi”) + Service Time Interleaver (384 ms)+ Service Time Interleaver (384 ms)ISDB-T:ISDB-T: RS (MPEG) RS (MPEG) + CC (“Viterbi”) + CC (“Viterbi”) + Sub-Band Interleaver (up to 1 second)+ Sub-Band Interleaver (up to 1 second)DVB-H :DVB-H : MPE-FEC (RS + Virtual Time Interleaver) MPE-FEC (RS + Virtual Time Interleaver) + RS/Outer Intl + RS/Outer Intl + CC/Inner Interleaver+ CC/Inner InterleaverFLO :FLO : RS RS + TURBO + TURBO + Interlaced Sub-channels (~250 ms)+ Interlaced Sub-channels (~250 ms)CDMB :CDMB : BCH BCH + LDPC + LDPC + Time Interleaver (~84 ms & ~255 ms)+ Time Interleaver (~84 ms & ~255 ms)CMMB :CMMB : RS/Outer Intl RS/Outer Intl + LDPC + LDPC + 25ms slots within 1s frame+ 25ms slots within 1s frame
© © Teamcast - 2008Teamcast - 2008
In Short : Variations around “C” - OFDMIn Short : Variations around “C” - OFDM
13th October 200813th October 2008 992008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
MACMAC ChannelChannelEncoderEncoder
Time Time InterleaveInterleave FramingFraming ModulationModulation ChannelChannel
BandwidthBandwidth
T-DMBT-DMB RS + Outer Intl(from DVB-T)
CC(per service)
384 ms(per service)
2K 1K ½K ¼KFrame Preamble D-QPSK 1.5 MHz
ISDB-TISDB-T - RS + Outer IntlCC + Inner Intl Up to 1 second 8K 4K 2K
PilotsD-QPSK, QPSK,16QAM, 64QAM 6 / 7 / 8 MHz
DVB-HDVB-H MPE-FEC(RS + Time Slice)
RS + Outer IntlCC + Inner Intl - 8K 4K 2K
PilotsQPSK,
16QAM, 64QAM 5 / 6 / 7 / 8 MHz
DVB-SHDVB-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
FLOFLO RS + Turbo Coder(Outer Interleave per service) ~250 ms
4KTDM & FDM
PilotsQPSK,16QAM 6 / 7 / 8 MHz
DMB-TDMB-T(TDS-OFDM)(TDS-OFDM)
- BCH + LDPC ~85 ms~255 ms
SC or 4KSymbol
Preamble
4QAM-NR, 4QAM,
16-32-64 QAM6 / 7 / 8 MHz
CMMBCMMB - RS + Outer IntlLDPC
25ms slotsWithin 1s frame
4K (8 MHz)1K (2 MHz)
BPSK,QPSK, 16QAM
8 MHz2 MHz
Channel EncoderChannel Encoder OFDM modulatorOFDM modulator
iFFTiFFT
xKxK yKyK zKzK
Framing/PilotsFraming/Pilots
SIGSIGSYNCSYNCESTIMESTIM
““MAC”MAC” TSTS
OFDM demodulatorOFDM demodulator Channel DecoderChannel Decoder
TSTS ““MAC”MAC”
iFFTiFFTFraming/PilotsFraming/Pilots
SIGSIG SYNCSYNCESTIMESTIM
OUTER CODINGOUTER CODING
BCBC OuterOuterIntlIntl
INNER CODINGINNER CODING
CCCC InnerInnerIntlIntl
OUTER DECODEROUTER DECODERINNER DECODERINNER DECODER
““PHY”PHY” ““PHY”PHY”DATA FECDATA FEC DATA FECDATA FEC
TimeTimeIntlIntl
TimeTimeIntlIntl
xKxK yKyK zKzK BCBCOuterOuterIntlIntlCCCCInnerInner
IntlIntl
Radio Radio InterfaceInterface
© © Teamcast - 2008Teamcast - 2008
““Multimedia Contents to Nomadic Terminals”Multimedia Contents to Nomadic Terminals”
Physics remains Physics…Physics remains Physics…
for all transmission systems !for all transmission systems !
Gerard FARIA Gerard FARIA ([email protected])([email protected])
13th October 200813th October 2008 10102008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
© © Teamcast - 2008Teamcast - 2008
The Question of Protocol Stacks...The Question of Protocol Stacks...
13th October 200813th October 2008 11112008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
MULTIMEDIA : CONTENTS / APPLICATIONS / SERVICESMULTIMEDIA : CONTENTS / APPLICATIONS / SERVICES
T-DABT-DABPhysical LayerPhysical Layer
DAB
DAB
Digital RAD
IOD
igital RADIO
Services Services
MP4-AVCMP4-AVCMP4-BSACMP4-BSACMP4-BIFSMP4-BIFS
TSTScircuitcircuit
MP4-SLMP4-SL
MPEG-TSMPEG-TSencapsulationencapsulation
TS FECTS FEC(RS)(RS)
T-DMBT-DMB
IPIP
TSTS
IP: TRANSPORT ConvergenceIP: TRANSPORT Convergence
DVB-IPDC : IP DataCastDVB-IPDC : IP DataCastSERVICE ConvergenceSERVICE Convergence
DVB-HDVB-H
MP4-VMP4-VMP4-AMP4-AMP4-DMP4-D
TSTS
DRMDRMSub SystemSub System
FramingFramingSub-ChannelSub-Channel
FLOFLOPhysical LayerPhysical Layer
MediaFLOMediaFLO
MP2-A/V/DMP2-A/V/DMP4-A/V/DMP4-A/V/D
MPEG2-MUXMPEG2-MUX
ISDB-TISDB-TSingle SegmentSingle Segment
ISDB-TISDB-T
TSTS
DVB
DVB
Digital TV Services
Digital TV Services
TSTS
DVB-TDVB-T
IPIP
DVB-SHDVB-SH
Satellite
TSTSTSTS
Terrestrial
© © Teamcast - 2008Teamcast - 2008
The Question of Mobile performance...The Question of Mobile performance...
13th October 200813th October 2008 12122008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
0,0 dB
10,0 dB
20,0 dB
30,0 dB
40,0 dB
50,0 dB
0 Hz 1 Hz 10 Hz 100 Hz 1000 Hz
DVB-T vs DVB-H(8K - gi 1/4 - 16QAM 2/3 - MPE-FEC 3/4)
13,27 Mbps
DVB -H @ FER 5%
DVB -H @ MFER 5%
Flat Behaviour
Up to Max Speed
QPSK 1/2 (5 Mbps)QPSK 1/2 (5 Mbps)
16QAM 2/3 (13 Mbps)16QAM 2/3 (13 Mbps)DVB-TMobilePenalty
6 to 12 dB
DVB-H GainArea
DVB-HMPE-FECGAIN :
2 to 5 dB (Pedestrian)
64QAM 2/3 (20 Mbps)64QAM 2/3 (20 Mbps)
Christian AndreasChristian Andreas
DOPPLERDOPPLER(1803-1853)(1803-1853)
)cos(Φ∗∗=ΔCf
Vf rfΔ
DVB-HMPE-FECGAIN :
5 to 9 dB (Mobile)
470 MHz UHF Band IV (21)854 MHz UHF Band V (69)
2 km/h1 km/h
23 km/h13 km/h
230 km/h126 km/h
1840 km/h1008 km/h TU6TU6
© © Teamcast - 2008Teamcast - 2008
The Question of Coverage...The Question of Coverage...
13th October 200813th October 2008 13132008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
Digital TVtransmitter
FOR FIX FOR FIX RECEPTION:RECEPTION:
Field StrengthField Strengthis Plannedis Planned
to offer theto offer theC/N thresholdC/N thresholdat 10 metersat 10 meters
above theabove theGround LevelGround Level
But for NOMADICBut for NOMADICRECEPTION:RECEPTION:
Field StrengthField StrengthShall be Shall be
available available At 1.5 meterAt 1.5 meter
Above Ground.Above Ground.
PENALTY: 12 dBPENALTY: 12 dB(for Outdoor Rx)(for Outdoor Rx)
Broadcast to NOMADIC Handhelds Terminals :Broadcast to NOMADIC Handhelds Terminals :. Ground level penalty . Ground level penalty ~ 12 dB~ 12 dB. Indoor penalty . Indoor penalty ~ 8 dB~ 8 dB. Mobile penalty (Outcar/Incar). Mobile penalty (Outcar/Incar) ~ 8 dB / ~ 8 dB / 16 dB16 dB
Building Penetration LossBuilding Penetration Loss
PENALTY: 8 dBPENALTY: 8 dB(for Indoor Rx)(for Indoor Rx)
MobilityMobility
PENALTY : 8 dB (Outcar antenna) PENALTY : 8 dB (Outcar antenna) PENALTY : 16 dB (Incar antenna)PENALTY : 16 dB (Incar antenna)
© © Teamcast - 2008Teamcast - 2008
The Question of Network Topology...The Question of Network Topology...
13th October 200813th October 2008 14142008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
Cellular Networks
(MNOs, Broadband)
MFNMFN
MFNMFN
MFNMFN
BroadCastNetworks
HybridNetworks
m
km
SFNSFN
SFNSFN
SFNSFN
Cellular?Cellular? Broadcast ?Broadcast ?
© © Teamcast - 2008Teamcast - 2008
The Question of Radio Spectrum… The Question of Radio Spectrum…
13th October 200813th October 2008 15152008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
3 KHz[VLF / LF]
300 KHz[MF]
3 MHz[HF]
30 MHz[VHF]
300 MHz[UHF]
3 GHz[SHF]
30 GHz[EHF]
[Sou
rce
: Rok
e m
anor
Res
earc
h Lt
d –
2007
- «
The
UK
Fre
quen
cy A
lloca
tion
Map
» ]
AM Radio Broadcast
AM Radio Broadcast
FMBand II
TV & Mobile(Band IV & Band V)
TV & Mobile(Band III)
© © Teamcast - 2008Teamcast - 2008
Electric Waves
RadioWaves Infra-Red Visible
LightUltraViolet X-Rays Gamma
RaysCosmicRays
Radio Spectrum
Is there Broadcast Spectrum Not Used ? Is there Broadcast Spectrum Not Used ?
Communities (i.e. Telcos / Broadband / Broadcast) generally consider Communities (i.e. Telcos / Broadband / Broadcast) generally consider first the spectrum they are operating for their primary services…first the spectrum they are operating for their primary services…
But sometimes considers also the one used by an other community…But sometimes considers also the one used by an other community…
13th October 200813th October 2008 16162008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
LongWaveRadio
MediumWaveRadio
ShortWaveRadio
IIFM
Radio
IIITV
(VHF)
IV & VTV
(UHF)
KuBand
KaBand
L & SBands
CBand
10 100 1000 10000 100000 1000000 10000000 100000000 1000000000
3 30 30 300300 3
LF SHF EHF Decreasing CoverageIncreasing Bandwidth
Increasing CoverageDecreasing Bandwidth HFMF
30
VHF
3300
UHF
kHz MHz GHz
+
© © Teamcast - 2008Teamcast - 2008
Where to operate “TV to Mobile” ? Where to operate “TV to Mobile” ?
ChannelChannelBandwidthBandwidth VHFVHF UHFUHF
T-DMBT-DMB 1.5 MHz Band III L-Band
ISDB-TISDB-T 6 / 7 / 8 MHz Band III Band IV & V
DVB-HDVB-H 5 / 6 / 7 / 8 MHz Band IV & V
DVB-SHDVB-SH 1,75 MHz &5 / 6 / 7 / 8 MHz L-Band & S-Band
FLOFLO 6 / 7 / 8 MHz Band IV & V
ATSC-MHATSC-MH 6 MHz Band IV & V
DMB-TDMB-T(TDS-OFDM)(TDS-OFDM)
6 / 7 / 8 MHz Band IV & V
CMMBCMMB 8 MHz2 MHz
Band IV & VL-Band & S-Band
13th October 200813th October 2008 17172008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
A nightmare for the Regulators...A nightmare for the Regulators...
© © Teamcast - 2008Teamcast - 2008 2008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape 181813th October 200813th October 2008
““Multimedia Contents to Nomadic Terminals” Multimedia Contents to Nomadic Terminals”
Plethora of offers but…Plethora of offers but…
What do we observe now?What do we observe now?
Gerard FARIA Gerard FARIA ([email protected])([email protected])
© © Teamcast - 2008Teamcast - 2008
The Transmitter Network Question (CAPEX)The Transmitter Network Question (CAPEX)
13th October 200813th October 2008 19192008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
© © Teamcast - 2008Teamcast - 2008
The Business Model Question (The Business Model Question (CAPEX, RoI & OPEXCAPEX, RoI & OPEX))
13th October 200813th October 2008 20202008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape
DVB-HDVB-HFLOFLO
DVB-SHDVB-SH
ATSC-MHATSC-MHDVB-HDVB-H
ISDB-TssISDB-TssT-DMBT-DMB
© © Teamcast - 2008Teamcast - 2008
ModulCastModulCast
13th October 200813th October 2008 21212008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast LandscapeFurther information at:Further information at: www.teamcast.com www.teamcast.com
Easy-to-integrate, compact and truly cost Easy-to-integrate, compact and truly cost effective technology for transmitter and base-effective technology for transmitter and base-station manufacturers:station manufacturers:
All the essential technical bricks needed to All the essential technical bricks needed to build up standard agnostic, high performance build up standard agnostic, high performance transmission systems at competitive pricing. transmission systems at competitive pricing.
ModulCastModulCast®® for forMobile Digital TVMobile Digital TV
High performance Digital TV modulators forHigh performance Digital TV modulators forT-DMB / DVB-H / FLO / DTMB / CMMB / DVB-T2T-DMB / DVB-H / FLO / DTMB / CMMB / DVB-T2
Hierarchical MIP inserters for SFNs, Hierarchical MIP inserters for SFNs, Mobile DVB‑T /-H / -SH antenna diversity Mobile DVB‑T /-H / -SH antenna diversity
receivers,receivers, Experimental DVB-H / DVB-SH receivers,Experimental DVB-H / DVB-SH receivers, Ultra Low Phase Noise Synthesizers,Ultra Low Phase Noise Synthesizers,
© © Teamcast - 2008Teamcast - 2008
Gerard FARIAGerard FARIA([email protected])([email protected])
TeamCastTeamCastEspace PerformanceEspace PerformanceF35769 - SAINT F35769 - SAINT
GREGOIRE GREGOIRE (FRANCE)(FRANCE)+33 2 23 25 26 80+33 2 23 25 26 80www.teamcast.comwww.teamcast.com
TeamCast Inc.TeamCast Inc.111 West Washington 111 West Washington
StreetStreetIL60602 - CHICAGOIL60602 - CHICAGO
(USA)(USA)+1 1 312 263 0033 +1 1 312 263 0033 www.teamcast.comwww.teamcast.com
Chicago . . Rennes
Thank you for your attention !Thank you for your attention !
13th October 200813th October 2008 22222008 NEM Summit - The evolutions of the Digital Broadcast Landscape2008 NEM Summit - The evolutions of the Digital Broadcast Landscape