Page 1
Multicast/Broadcast Technologies
for the Mobile Video Market
2 Convegno nazionale sulla Mobile Television
Presented byEnrico Brancaccio
Standards and Innovation ManagerMarket Unit Italy
Ericsson Telecomunicazioni S.p.A.Marketing & Customer Solutions
[email protected]
Page 2
© Ericsson AB 2005 Multicast/Broadcast technologies November 20052
AgendaMulticast/Broadcast Technologies
Mobile TV Services
Available Technologies
Deeper in Technologies
Market Deployments
Summary
Page 3
© Ericsson AB 2005 Multicast/Broadcast technologies November 20053
Agenda Multicast/Broadcast Technologies
Mobile TV Services
Available Technologies
Deeper in Technologies
Market Deployments
Summary
Page 4
© Ericsson AB 2005 Multicast/Broadcast technologies November 20054
Family Watching
=
Personal WatchingDifferent user behaviour
Different Use Cases
Mobile TV Normal TV
QuickTime och enCinepak-dekomprimerare
krävs för att kunna se bilden.
QuickTime och enCinepak-dekomprimerare
krävs för att kunna se bilden.
=
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20055
Different revenues for Mobile TV
Subscription
Transaction
Advertising
Interactivity
Subscription and Advertising models are expected to be dominantAdvertisment can be tailor madeper user further provides anattractive advertising channelInteractivity provides additional revenues and a clear differentiatorAll combinations and extremescan be visioned
– Free TV paid by advertising– Pure subscription based– Combinations
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20056
“La Tentazione”: il Mobile Triple Play
Telephony
www@
TV
Home Mobile Office
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20057
Make the Remote Control truly Remote and Mobile:
–Watch TV on Mobile (3G) with channels switching while on the go
–Switch channel on you home-TV (2G/3G) when at home
–Initiate network- or STB-based PVR recording / timeshifting (2G/3G) at home or while on the go
–Interactive TV both when Mobil (3G) and at home (2G/3G)
Examples of Converged IPTV – Mobile Remote Control
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20058
MobileTV Usage Pattern… is different from traditional TV viewing
TV session lengths (mins)
0%5%
10%15%20%25%30%35%40%45%
< 5
5–10
10–1
5
15–2
0
20–2
5
25–3
0
30–3
5
35–4
0
40–4
5
45–5
0
50–5
5
55–6
0
> 60
Time spent viewing individual TV programmes (mins)
0%
10%
20%
30%
40%
50%
60%
< 2
2–4
4–6
6–8
8–10
10–1
2
12–1
4
14–1
6
16–1
8
> 18
Source: Press release and study results from DVB-H pilot
Short sessions, little time spent on individual TV programs
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20059
Different Mobile TV servicesAnalysis
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20059
Different Mobile TV servicesAnalysis
TV-on demand (streaming)•”Video-on-Demand”
TV-on-demand (download)•“Video-on-Demand”
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20059
Different Mobile TV servicesAnalysis
TV-on demand (streaming)•”Video-on-Demand”
TV-on-demand (download)•“Video-on-Demand”
Push-TV (event based download)• Ex: MMS video Breaking News
Push-TV (schedule based download)•Ex: EZTV
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20059
Different Mobile TV servicesAnalysis
TV-on demand (streaming)•”Video-on-Demand”
TV-on-demand (download)•“Video-on-Demand”
Push-TV (event based download)• Ex: MMS video Breaking News
Push-TV (schedule based download)•Ex: EZTV
Live-TV-alert•Ex: SMS alerting CNN Breaking News
Live TV•”Regular TV” program on mobile
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20059
Different Mobile TV servicesAnalysis
TV-on demand (streaming)•”Video-on-Demand”
TV-on-demand (download)•“Video-on-Demand”
Push-TV (event based download)• Ex: MMS video Breaking News
Push-TV (schedule based download)•Ex: EZTV
Live-TV-alert•Ex: SMS alerting CNN Breaking News
Live TV•”Regular TV” program on mobile
User distribution control
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20059
Different Mobile TV servicesAnalysis
TV-on demand (streaming)•”Video-on-Demand”
TV-on-demand (download)•“Video-on-Demand”
Push-TV (event based download)• Ex: MMS video Breaking News
Push-TV (schedule based download)•Ex: EZTV
Live-TV-alert•Ex: SMS alerting CNN Breaking News
Live TV•”Regular TV” program on mobile
User distribution control
Broadcaster distribution control, event based
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20059
Different Mobile TV servicesAnalysis
TV-on demand (streaming)•”Video-on-Demand”
TV-on-demand (download)•“Video-on-Demand”
Push-TV (event based download)• Ex: MMS video Breaking News
Push-TV (schedule based download)•Ex: EZTV
Live-TV-alert•Ex: SMS alerting CNN Breaking News
Live TV•”Regular TV” program on mobile
User distribution control
Broadcaster distribution control, event based
Broadcaster distribution control, schedule based
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20059
Different Mobile TV servicesAnalysis
TV-on demand (streaming)•”Video-on-Demand”
TV-on-demand (download)•“Video-on-Demand”
Push-TV (event based download)• Ex: MMS video Breaking News
Push-TV (schedule based download)•Ex: EZTV
Live-TV-alert•Ex: SMS alerting CNN Breaking News
Live TV•”Regular TV” program on mobile
User distribution control
Broadcaster distribution control, event based
Broadcaster distribution control, schedule based
Consumption time = Distribution time
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© Ericsson AB 2005 Multicast/Broadcast technologies November 20059
Different Mobile TV servicesAnalysis
TV-on demand (streaming)•”Video-on-Demand”
TV-on-demand (download)•“Video-on-Demand”
Push-TV (event based download)• Ex: MMS video Breaking News
Push-TV (schedule based download)•Ex: EZTV
Live-TV-alert•Ex: SMS alerting CNN Breaking News
Live TV•”Regular TV” program on mobile
User distribution control
Broadcaster distribution control, event based
Broadcaster distribution control, schedule based
Consumption time = Distribution time
Consumption time ≠Distribution time
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200510
Agenda Multicast/Broadcast Technologies
Mobile TV Services
Available Technologies
Deeper in Technologies
Market Deployments
Summary
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200511
Mobile TV which standard?
Today20062006Trials ongoing
TodayService availability
Today from several vendors
20062006Trial units from one vendor
Today from many vendors
Handset availability
Japan
Open
ISDB-T
Korea and expanding to other countries
USUS, Europe parts of Asia
WorldwideRegions
OpenProprietaryOpenOpenStandard
DMBMediaFLODVB-H3G
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200511
Mobile TV which standard?
Today20062006Trials ongoing
TodayService availability
Today from several vendors
20062006Trial units from one vendor
Today from many vendors
Handset availability
Japan
Open
ISDB-T
Korea and expanding to other countries
USUS, Europe parts of Asia
WorldwideRegions
OpenProprietaryOpenOpenStandard
DMBMediaFLODVB-H3G
Trials ongoing
Today
Trial units from one vendor
Today from many vendors
US, Europe parts of Asia
Worldwide
OpenOpen
DVB-H3G
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200513
Providing Mobile TV in 3G networkThe obvious choice for the mobile operator
Unicast streaming is in service already today– TV-like services over the mobile network– Content providers are adapting to the small form factor for size
and time– Unicast does not scale well to many simultaneous users
Multi/Broadcast Multimedia Services (MBMS)– Capacity booster– Provides the same content to unlimited number of users via
multicast or broadcast– Beneficial for a few number of channels that attracts many users– Services in the full control of the mobile operator– Relatively low available bandwidth per channel
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200514
DVB-H and IP DatacastingThe non-cellular alternative
DVB-H (Handheld) based on DVB-T (Terrestrial)Provides enough bandwidth for high quality audio and video broadcast to mobile terminalsDoes not mandate return channel, could be TV receiver without mobile telephone functionalityDVB-H standardised, IPDC over DVB-H in final stages
Issues– Uncertainties about spectrum availability in several markets– Business model, including broadcaster and mobile operator
Existing terrestrial digital TV network is not enough– Gap fillers needed for indoor coverage– IPDC standard proposal could have been more stringent
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200515
Possible Business Model
Content DeliveryPayment
Content Provider
Content Aggregator Mobile/
Datacast
Service operator
End user
Mobile/Datacast
Network Operator
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200515
Possible Business Model
Content DeliveryPayment
Content Provider
Content Aggregator Mobile/
Datacast
Service operator
End user
Mobile/Datacast
Network Operator
3G network enables simple Business model
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200515
Possible Business Model
Content DeliveryPayment
Content Provider
Content Aggregator Mobile/
Datacast
Service operator
End user
Mobile/Datacast
Network Operator
3G network enables simple Business model
Mobile Operator
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200515
Possible Business Model
Content DeliveryPayment
Content Provider
Content Aggregator Mobile/
Datacast
Service operator
End user
Mobile/Datacast
Network Operator
3G network enables simple Business model
Mobile Operator
Content Provider
Content Aggregator
Datacast service
operator
End user
Datacast Network Operator
Mobile
Operator
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200515
Possible Business Model
Content DeliveryPayment
Content Provider
Content Aggregator Mobile/
Datacast
Service operator
End user
Mobile/Datacast
Network Operator
3G network enables simple Business model
Mobile Operator
Content Provider
Content Aggregator
Datacast service
operator
End user
Datacast Network Operator
Mobile
Operator
DVB-H overlays current 2G/3G generating a complicate model
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200515
Possible Business Model
Content DeliveryPayment
Content Provider
Content Aggregator Mobile/
Datacast
Service operator
End user
Mobile/Datacast
Network Operator
3G network enables simple Business model
Mobile Operator
Content Provider
Content Aggregator
Datacast service
operator
End user
Datacast Network Operator
Mobile
Operator
DVB-H overlays current 2G/3G generating a complicate model
FOUND
in
ITALY?
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200516
Spectrum Aspects“Brodcaster Domain”
“3G Mobile Operator Domain”
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200516
Spectrum Aspects“Brodcaster Domain”
“3G Mobile Operator Domain”
174 240 450 862470Current usage
BSBS
(MHz)806
MM SS BSBS
“Brodcaster Domain”
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200516
Spectrum Aspects“Brodcaster Domain”
“3G Mobile Operator Domain”
174 240 450 862470Current usage
BSBS
(MHz)806
MM SS BSBS
“Brodcaster Domain”
Possible futureusage followingdigital switchover(1 Carrier => 4 CHs)
DVB, ISDB, DTVDVB, ISDB, DTV
~600M S
WCDMADAB, DVB 806
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200516
Spectrum Aspects“Brodcaster Domain”
“3G Mobile Operator Domain”
174 240 450 862470Current usage
BSBS
(MHz)806
MM SS BSBS
“Brodcaster Domain”
Possible futureusage followingdigital switchover(1 Carrier => 4 CHs)
DVB, ISDB, DTVDVB, ISDB, DTV
~600M S
WCDMADAB, DVB 806
2110
2025
2155 (70)
1900 1920
1995
2170
1710 1755(70) 1850 1915 1930
WCDMA DLWCDMA UL
3G DL3G UL 3G UL 3G DL
Europe
Americas
1980
(TDD)
2110
Current Allocation
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200516
Spectrum Aspects“Brodcaster Domain”
“3G Mobile Operator Domain”
174 240 450 862470Current usage
BSBS
(MHz)806
MM SS BSBS
“Brodcaster Domain”
Possible futureusage followingdigital switchover(1 Carrier => 4 CHs)
DVB, ISDB, DTVDVB, ISDB, DTV
~600M S
WCDMADAB, DVB 806
2110
2025
2155 (70)
1900 1920
1995
2170
1710 1755(70) 1850 1915 1930
WCDMA DLWCDMA UL
3G DL3G UL 3G UL 3G DL
Europe
Americas
1980
(TDD)
2110
Current Allocation
2500 2690
3G
3G
3G
3G
New Bands
2110
2025
2155 (70)
1900 1920
1995
2170
1710 1755(70) 1850 1915 1930
WCDMA DLWCDMA UL
3G DL3G UL 3G UL 3G DL
Europe
Americas
1980
(TDD)
2110
Current Allocation
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200518
AgendaMulticast/Broadcast Technologies
Mobile TV Services
Available Technologies
Deeper on Technologies
Market Deployments
Summary
Page 35
© Ericsson AB 2005 Multicast/Broadcast technologies November 200519
MBMS (Multimedia Broadcast and Multicast Services)
3G (HSDPA)
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200520
Unicast versus Broadcast
Unlimited number of content channelsTransport channel only used for the duration of a session, transmission can be optimized per userDoes not scale well with the numberof users
Number of content channels is limited Each content channel allocates one transport channel even if no user is watchingResource consumption independent from number of users
IP NetworkIP NetworkIP NetworkIP Network
Unicast Broadcast
Mobile TV today
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200524
Core Network
Channel delivery today
SGSN
GGSN
SGSN
Required resources depend on number of usersDoes not scale for large number of users (> 100.000)Required resources depend on number of usersDoes not scale for large number of users (> 100.000)
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200525
Core Network
Channel delivery via MBMS
SGSN
GGSN
SGSN
Considerable resource savings in CN and RAN!Resources depend only on number of content channels - not on number of users!
Considerable resource savings in CN and RAN!Resources depend only on number of content channels - not on number of users!
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200528
Radio Resource Usage
# users
Cel
l Cap
acity
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200528
Radio Resource Usage
# users
Cel
l Cap
acity
Dedicated
Radio Resources
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200528
Radio Resource Usage
# users
Cel
l Cap
acity
Dedicated
Radio Resources
Common Radio Resources
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200528
Radio Resource Usage
# users
Cel
l Cap
acity
Dedicated
Radio Resources
Common Radio Resources
MBMSMBMS
Feedback Channel
NOFeedback Channel
Threshold
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200529
UTRAN – Below and Above the Threshold
Below the Threshold: DEDICATED CHANNEL – using RLC ack mode
Above the threshold: COMMON CHANNEL – FACH (Forward Access Channel)– Use of higher TTI (Time Transmission Interval) for optimizing
transmitted power– Use of SC (Selective Combining) for deploying cell coverage
overlappingLATEST ENHANCEMNTS (now in TR 25.803 v6.0.0):
– Use of RAKE combining (when applicable) and Soft Combining will further enhance the performance (by 2dB or more)
– Use of RX diversity in the terminal can further enhance the performance (by 3dB)
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200530
GERAN - Below and Above the Threshold
Below the Threshold: COMMON FEEDBACK CHANNEL– Data are broadcasted on assigned Time Slots to all the UE’s.– PDAN (Packet Data Ack Nack):
Up to 16 UE’s can report the data reception on an common uplink shared channel
– A repetition pattern is generated accordingly
Above the threshold: BLIND BLOCK REPETITION – Data are broadcasted on assigned Time Slots to all the UE’s– For guaranteeing the correct reception data are repeated N
times– Bitrate vs. coverage has to be balanced.
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200531
5 6 7 8 9 10 11 12 13 14 1590
91
92
93
94
95
96
97
98
99
100
Traffic Load [Erlang/cell]
Perc
enta
ge o
f Sat
isfie
d U
sers
Capacity of Mobile TV over HSDPA
System simulation
12 Erlang available for dimensioning MobileTV at 128 kbps
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200532
How many MobileTV users on unicast?Flat usage scenario
Available capacity: 12 Erlang / cell (HSDPA, 128 kbps per channel) Assumed user density per cell in densely populated areas: 600
Unicast: 25% of the subscribers can use Mobile TV for 1 hour/day in a flat usage scenario
~108~144~857
Max users density per cell
~18 %~0.111High (e.g. 4x 20 min)~24%~0.083Medium (e.g. 5x 12 min)~140 %~0.014Low (e.g. 2x 5 min)
Share of total subscriber base
Load[Erlang]
Usage per day (0700 -1900 = 12 hours)
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200533
-16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -370
75
80
85
90
95
100VehA3 64kbps, 80 ms TTI
P/Pmax [dB]
Cov
erag
e [%
]No soft comb2 RL soft comb3 RL soft comb
MBMS Performance
dB: 10 log P/Pmax = x
One 64 kbps MBMS channel uses 5 – 8 % of the carrier power
Source: 3GPP TR 25.803 v6.0.0
6x 128 kbps MBMS broadcast bearers on one WCDMA carrier
One 128 kbps MBMS channel uses 10 – 16%of the carrier power~80% of cell power available for MBMS
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200534
Combined HSDPA / MBMS broadcast“Hot channels” scenario
”Hot channels” = channels requested by many users at the same time
Traffic model– 25% of all customers (= 150 users/cell)
are subscribed to MobileTV– ”Hot channels” attracts 50% (= 75 users/cell)
of the MobileTV subscribers
Two MBMS Broadcast bearers per cell for delivering the ”hot channels” Around 8 Erlang/cell can be used for unicast
Remaining 75 users not watching the hot channel can still generate additional traffic of ~50 mE (corresponding to “medium load” scenario)
Two broadcast bearers sufficient to cope with “hot channels”(= channels watched by many users at the same time)
TV channel usage
0,0000
0,0500
0,1000
0,1500
0,2000
0,2500
0,3000
1 2 3 4 5 6 7 8 9 10
Channel/service
Rel
ativ
e us
age
“Hot channels”
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200536
Outdoor Indoor
250 kbps800 kbps1800 kbps 230 kbps720 kbps1600 kbps
Indoor CapacitySimulation results
P/Pmax P/Pmax
Only marginal performance loss when indoor
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200537
Future MBMS capacityAdvanced receiver techniques
Req
uire
d B
S p
ower
for 1
28 K
bps
(%)
RA
KE
13%
RA
KE
2
6.4%
GR
AK
E2
6%G
-RA
KE
13%
12 channels6 channels
128 kbps streaming~80% of cell power available for MBMS
12x 128 kbps MBMS Broadcast bearers with advanced receiver techniques
Requiresreceiverdiversity
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200538
DVB-H(DVB-Handheld)
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200539
Digital Video Broadcast-Handheld (DVB-H)
Based on ETSI DVB-T– (European standard for Digital Terrestrial TV)
Specific Requirements– Same service environment as cellular systems (2G and 3G)– Mobile and indoor reception, cellular hand-set form factor– Support of IP datacasting (IPDC) and TV over IPDC distribution– Low power consumption of receiver
(same battery life times as with current cellular phones; frontend < 100mW)
Deploy with:SFN (Single Frequency Network) with 8MHz channel (DVB-T/H) - 30-80 TV channels (128-384Kbps)
UHF frequencies- UHF band (470-700 MHz)
Standard approved by ETSI last November 2004 completion expected end 2005
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200546
Channel delivery via DVB-H
Core Network
SGSN
GGSN
SGSN
CN and RAN resources not used for content deliveryNumber of channels limited by available DVB-H capacityCN and RAN resources not used for content deliveryNumber of channels limited by available DVB-H capacity
User Interaction channel
DVB-H coverage
Content delivery channel
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200547
Broadcaster Network deployment•Output power in DVB-H
•DVB-T the digital step for broadcasting
• Cell radius > 50 km
• 50 kW per channel
• High Antenna gain and no in-door loss
500W
5kW
50kW
500kW
5MW
50MW
Power per Channel
ILLUSTRATIVE
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200547
Broadcaster Network deployment•Output power in DVB-H
•DVB-T the digital step for broadcasting
• Cell radius > 50 km
• 50 kW per channel
• High Antenna gain and no in-door loss
500W
5kW
50kW
500kW
5MW
50MW
Power per Channel
ILLUSTRATIVE
Estimate power per DVB-T Channel
Baseline with DVB-T (same frequencies)
Page 56
© Ericsson AB 2005 Multicast/Broadcast technologies November 200547
Broadcaster Network deployment•Output power in DVB-H
•DVB-T the digital step for broadcasting
• Cell radius > 50 km
• 50 kW per channel
• High Antenna gain and no in-door loss
500W
5kW
50kW
500kW
5MW
50MW
Power per Channel
ILLUSTRATIVE
Estimate power per DVB-T Channel
Baseline with DVB-T (same frequencies)Less data per
channel in DVB-H
Average power per channel due to less bits per channel
Page 57
© Ericsson AB 2005 Multicast/Broadcast technologies November 200547
Broadcaster Network deployment•Output power in DVB-H
•DVB-T the digital step for broadcasting
• Cell radius > 50 km
• 50 kW per channel
• High Antenna gain and no in-door loss
500W
5kW
50kW
500kW
5MW
50MW
Power per Channel
ILLUSTRATIVE
Estimate power per DVB-T Channel
Baseline with DVB-T (same frequencies)Less data per
channel in DVB-H
Average power per channel due to less bits per channel“Soft combining”
By combing the signal from several base stations 2dB
Page 58
© Ericsson AB 2005 Multicast/Broadcast technologies November 200547
Broadcaster Network deployment•Output power in DVB-H
•DVB-T the digital step for broadcasting
• Cell radius > 50 km
• 50 kW per channel
• High Antenna gain and no in-door loss
500W
5kW
50kW
500kW
5MW
50MW
Power per Channel
ILLUSTRATIVE
Estimate power per DVB-T Channel
Baseline with DVB-T (same frequencies)Less data per
channel in DVB-H
Average power per channel due to less bits per channel“Soft combining”
By combing the signal from several base stations 2dB
From roof mounted antennas
to Handheld in Near LOS
30 dB Gain and Near LOS vs. Handheld
Page 59
© Ericsson AB 2005 Multicast/Broadcast technologies November 200547
Broadcaster Network deployment•Output power in DVB-H
•DVB-T the digital step for broadcasting
• Cell radius > 50 km
• 50 kW per channel
• High Antenna gain and no in-door loss
500W
5kW
50kW
500kW
5MW
50MW
Power per Channel
ILLUSTRATIVE
Estimate power per DVB-T Channel
Baseline with DVB-T (same frequencies)Less data per
channel in DVB-H
Average power per channel due to less bits per channel“Soft combining”
By combing the signal from several base stations 2dB
From roof mounted antennas
to Handheld in Near LOS
30 dB Gain and Near LOS vs. Handheld
Similar indoor coverage as with cellular systems
18 dB building penetration loss
Page 60
© Ericsson AB 2005 Multicast/Broadcast technologies November 200547
Broadcaster Network deployment•Output power in DVB-H
•DVB-T the digital step for broadcasting
• Cell radius > 50 km
• 50 kW per channel
• High Antenna gain and no in-door loss
500W
5kW
50kW
500kW
5MW
50MW
Power per Channel
ILLUSTRATIVE
Estimate power per DVB-T Channel
Baseline with DVB-T (same frequencies)Less data per
channel in DVB-H
Average power per channel due to less bits per channel“Soft combining”
By combing the signal from several base stations 2dB
From roof mounted antennas
to Handheld in Near LOS
30 dB Gain and Near LOS vs. Handheld
Similar indoor coverage as with cellular systems
18 dB building penetration lossA denser network clearly needed
Page 61
© Ericsson AB 2005 Multicast/Broadcast technologies November 200550
AgendaMulticast/Broadcast Technologies
Mobile TV Services
Technologies on the Market
Deeper in Technologies
Market Deployments
Summary
Page 62
© Ericsson AB 2005 Multicast/Broadcast technologies November 200551
Service customization(service differentiation, personalization, etc)
low high
Sim
ulta
neou
sly
reac
habl
e us
ers
few
man
y
Dedicated BC
(DVB-H,…)
Unicast services
MBMS
Unicast
Unicast+
Technology options for Mobile TV
WCDMA: 64 kb/s (CS)128 kb/s (PS)
GPRS: ~ 40 kb/s (PS)EDGE: ~100 kb/s(PS)
WCDMA: 64 kb/s (CS)128 kb/s (PS)
GPRS: ~ 40 kb/s (PS)EDGE: ~100 kb/s(PS)
MBMS/WCDMA: 64-256+ kb/s(7-30% of cell power)MBMS/EDGE: 32-128 kb/s(4 TS with 8-32 kbps/TS)
MBMS/WCDMA: 64-256+ kb/s(7-30% of cell power)MBMS/EDGE: 32-128 kb/s(4 TS with 8-32 kbps/TS)
DVB-H (8 MHz): ~13 Mb/s ~ 40 channels (300 kb/s)DVB-H (8 MHz): ~13 Mb/s ~ 40 channels (300 kb/s)
Unicast services
Page 63
© Ericsson AB 2005 Multicast/Broadcast technologies November 200552
Service customization(service differentiation, personalization, etc)
low high
Sim
ulta
neou
sly
reac
habl
e us
ers
few
man
y
Dedicated BC
(DVB-H,…)
Unicast services
MBMS
Unicast
Unicast+
Technology options for Mobile TV
WCDMA: 64 kb/s (CS)128 kb/s (PS)
GPRS: ~ 40 kb/s (PS)EDGE: ~100 kb/s(PS)
WCDMA: 64 kb/s (CS)128 kb/s (PS)
GPRS: ~ 40 kb/s (PS)EDGE: ~100 kb/s(PS)
MBMS/WCDMA: 64-256+ kb/s(7-30% of cell power)MBMS/EDGE: 32-128 kb/s(4 TS with 8-32 kbps/TS)
MBMS/WCDMA: 64-256+ kb/s(7-30% of cell power)MBMS/EDGE: 32-128 kb/s(4 TS with 8-32 kbps/TS)
DVB-H (8 MHz): ~13 Mb/s ~ 40 channels (300 kb/s)DVB-H (8 MHz): ~13 Mb/s ~ 40 channels (300 kb/s)
MBMS/WCDMA (5 MHz): ~2,5 Mb/s~ 10-20 channels (128 kb/s) ~ 20-40 channels (64 kb/s)
MBMS/WCDMA (5 MHz): ~2,5 Mb/s~ 10-20 channels (128 kb/s) ~ 20-40 channels (64 kb/s)
WCDMA/HSDPAWCDMA/HSDPA
Unicast services
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200553
Service customization(service differentiation, personalization, etc)
low high
Sim
ulta
neou
sly
reac
habl
e us
ers
few
man
y
Dedicated BC
(DVB-H,…)
Unicast services
Unicast
Unicast+
Technology options for Mobile TV - Services
Unicast services
MBMS
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200553
Service customization(service differentiation, personalization, etc)
low high
Sim
ulta
neou
sly
reac
habl
e us
ers
few
man
y
Dedicated BC
(DVB-H,…)
Unicast services
Unicast
Unicast+
Technology options for Mobile TV - Services
Unicast services
MBMS
Live-TV-alert•Ex: SMS alerting CNN Breaking
News
Live TV/Mass Event•”Regular TV” program on
mobile
Live TV/Normal•”Regular TV” program on
mobile
Live TV/Pay x View•”Regular TV” program on
mobile
MBMS
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200553
Service customization(service differentiation, personalization, etc)
low high
Sim
ulta
neou
sly
reac
habl
e us
ers
few
man
y
Dedicated BC
(DVB-H,…)
Unicast services
Unicast
Unicast+
Technology options for Mobile TV - Services
Unicast services
MBMS
Live-TV-alert•Ex: SMS alerting CNN Breaking
News
Live TV/Mass Event•”Regular TV” program on
mobile
Live TV/Normal•”Regular TV” program on
mobile
Live TV/Pay x View•”Regular TV” program on
mobile
MBMS
TV-on demand (streaming)
•”Video-on-Demand”
TV-on-demand (download)
•“Video-on-Demand”
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200553
Service customization(service differentiation, personalization, etc)
low high
Sim
ulta
neou
sly
reac
habl
e us
ers
few
man
y
Dedicated BC
(DVB-H,…)
Unicast services
Unicast
Unicast+
Technology options for Mobile TV - Services
Unicast services
MBMS
Live-TV-alert•Ex: SMS alerting CNN Breaking
News
Live TV/Mass Event•”Regular TV” program on
mobile
Live TV/Normal•”Regular TV” program on
mobile
Live TV/Pay x View•”Regular TV” program on
mobile
MBMS
TV-on demand (streaming)
•”Video-on-Demand”
TV-on-demand (download)
•“Video-on-Demand”
Push-TV(event based download)
• Ex: MMS video Breaking NewsPush-TV
(schedule based download)
•Ex: EZTV
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200554
Technology evolution for “Mobile TV”
Unicast Unicast+
MBMS -> MBMS+
Continuation for personalized, interactive Services(Services small receiver groups)
ImprovementsMore throughput(EDGE, HSDPA)Bearers with QoS
Commercial launch of “Mobile-TV” Services
Technology Trials
Required mass-market extension for highly attractive services and “busy-hours”
“Live”-Streaming based onexisting technologies, CS/PSBetter codecs, audio & video
Broadcast services (cellular)
DVB-H Technology TrialsBroadcast services (D-TV)
2005 2006 2007 2008
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200555
AgendaMulticast/Broadcast Technologies
Mobile TV Services
Available Techologies
Deeper on Technologies
Market Deployments
Summary
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200556
Summary
HSPDA and MBMS represent a baseline for evolving already existing Mobile TV services
No indoor coverage extra requirements
Combining unicast and broadcast a cost and spectrum efficient solution can be achieved
DVB-H addresses specific usage cases and requires gap fillers for giving the same mobile coverage
Both technologies make interactive channel available
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© Ericsson AB 2005 Multicast/Broadcast technologies November 200557