Net Insight ISDB-T DTT Overview Kristian Mets– Net Insight 12 ... - SET
Net Insight ISDB-T DTT Overview Kristian Mets– Net Insight 12 ... - SET
Net Insight ISDB-T DTT Overview Kristian Mets– Net Insight 12 ... - SET
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© <strong>Net</strong> <strong>Insight</strong> 20<strong>12</strong><br />
<strong>Net</strong> <strong>Insight</strong> BTS Transport Solution<br />
Christer Bohm/<strong>Kristian</strong> Mets/Daniel Diniz – <strong>Net</strong> <strong>Insight</strong><br />
<strong>SET</strong> – Congress 20<strong>12</strong>
<strong>Net</strong> <strong>Insight</strong> global footprint<br />
High profile references on all continents<br />
KT<br />
2
<strong>ISDB</strong>-T Studio-Transmitter link Requirements<br />
Nimbra offer unique features 1<br />
BTS<br />
• Use Telecom Radio links with Nimbra (also fiber)<br />
• Low cost, return capacity and other service integration<br />
• Multicast made easy<br />
• Regeneration easy (drop and continue, one box for multiple links, star<br />
configuration)<br />
• Only one Nimbra at each location<br />
• One Nimbra for all node types<br />
• Flexible equipment configuration<br />
IP Radio link<br />
IP Radio link<br />
IP Radio link<br />
IP Radio link<br />
© <strong>Net</strong> <strong>Insight</strong> 20<strong>12</strong> Commercial in Confidence 3
<strong>ISDB</strong>-T Studio-Transmitter link Requirements<br />
Nimbra offer unique features 2<br />
• Performance monitoring on BTS service<br />
• If packet loss it will be detected<br />
• Alarms if degeneration<br />
• Constant monitoring and log<br />
• Unique enhancement of quality over IP links<br />
• Forward Error Correction (takes away packet loss)<br />
• Reshaped signal needs less radio capacity<br />
• Resynchronization corrects jitter<br />
!<br />
© <strong>Net</strong> <strong>Insight</strong> 20<strong>12</strong><br />
Commercial in Confidence<br />
IP Radio link<br />
4
<strong>ISDB</strong>-T Studio-Transmitter link Requirements<br />
Nimbra offer unique features 3<br />
• 10 MHz synch source for transmitters<br />
• Nimbra offer STL standard 10 MHz synchronization over any radio<br />
• Also PPS time transfer for GPS replacement<br />
• BTS compression<br />
• Lowers the transmission speed needed by approx. 36%<br />
• More services on lower bandwidth<br />
• More robust modulation for longer reach<br />
• Integrate with Contribution needs<br />
• Guarenteed QoS of all services independently<br />
• Also IP data transport services can be transported<br />
• Better business case<br />
IP Radio link<br />
BTS<br />
10 MHz<br />
1 PPS<br />
Ethernet Data<br />
Video<br />
© <strong>Net</strong> <strong>Insight</strong> 20<strong>12</strong> Commercial in Confidence 5
<strong>Net</strong> <strong>Insight</strong> approach to media services over IP<br />
Service-centric<br />
network<br />
management<br />
Provisioning<br />
Monitoring<br />
Protection<br />
Service Aware Media <strong>Net</strong>works<br />
QoS Enhanced<br />
Links<br />
FEC<br />
Traffic shaping<br />
Resync<br />
<strong>Net</strong> <strong>Insight</strong> offers Media Service Routers<br />
Lossless<br />
routing<br />
Zero packet loss<br />
through the<br />
Nimbra MSR
Fit the BTS into E3 Radio link – Null packet<br />
compression<br />
MPEG packets<br />
null null<br />
• Compresses ASI stream by<br />
compressing null packets<br />
• Does not remove null packets, only the<br />
payload<br />
• Same timing characteristics as original<br />
stream, i.e., meets PCR jitter specs<br />
• Allows for use of telecom MW links with<br />
transmission capacities down to E3<br />
…… and to fit in additional transported<br />
services such as Ethernet<br />
• Can be transported in multiple network<br />
hops<br />
null<br />
Transport capacity (Mbps)<br />
35<br />
30<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
Transport capacity for 32.508<br />
Mbps BTS<br />
10 <strong>12</strong> 14 16 18 20 22 24 26 28 30<br />
TV stream size (Mbps)<br />
7
QoS Enhanced Links<br />
AL-FEC vs per link FEC<br />
20 Mbps ASI stream<br />
x<br />
x<br />
x<br />
x<br />
x<br />
x x<br />
Not possible to recover<br />
100 Mbps link 400 Mbps link 100 Mbps link<br />
x x<br />
• Recovers more packet drops over multi-hop networks<br />
• Reduces overall overhead by adjusting FEC to specific link needs<br />
• Reduced end-to-end delay thanks to FEC on aggregated stream<br />
• E.g., Assembling 100 packets (10x10 FEC) on 400 Mbps instead of 20 Mbps stream<br />
x x<br />
x x<br />
x<br />
8
IP/MPLS Routers only for video traffic<br />
Scalability trap – Works well in lab but not in real-life<br />
Flow 2: Rate: 50 Mbps<br />
Flow 3: Rate: 30 Mbps<br />
Flow 4: Rate: 80 Mbps<br />
MA<br />
MA<br />
MA<br />
Flow 1: Rate: 40 Mbps<br />
Data Routers<br />
Data Routers<br />
Data Routers<br />
Sum: 200 Mbps<br />
Average over time!<br />
No traffic shaping inside the network implies QoS issues<br />
with accumulated jitter and packet loss or excessive over provisioning<br />
MA<br />
Peak due to bursts
Nimbra media transport reshapes to avoid packet loss<br />
and excessive jitter<br />
Traffic Shaping<br />
Flow 2: Rate: 50 Mbps<br />
Flow 3: Rate: 30 Mbps<br />
Flow 4: Rate: 80 Mbps<br />
MA<br />
MA<br />
MA<br />
Flow 1: Rate: 40 Mbps<br />
Sum: 200 Mbps<br />
Always<br />
Reduces QoS constraints on underlying IP infrastructure through<br />
traffic shaping in MSR nodes<br />
Reshaped traffic provides better traffic characteristics for traffic with<br />
same or lower priority<br />
MSR<br />
MSR<br />
MA<br />
MSR
QoS Enhanced Links<br />
Resynchronization/jitter reduction<br />
jitter<br />
Resynchronization in each MSR hop<br />
reduces end-to-end jitter and wander<br />
Constraints on total jitter that can be handled (~5 ms)<br />
Easier per hop than trying to recover end-to-end
Montoring and SLA reporting per IP link<br />
Not a separate platform – integrated into the system<br />
• IP and /Ethernet monitoring:<br />
• Packet statistics<br />
• Drops/Recoveries<br />
• RMON<br />
• MSR level monitoring<br />
• Continuous real-time monitoring<br />
of actual user traffic<br />
• Packet drops/recoveries<br />
• Jitter monitoring<br />
• 15m/24h reports<br />
Significantly simplifies trouble shooting,<br />
analyses and SLA verification<br />
Service monitoring<br />
MSR layer monitoring<br />
General IP layer monitoring<br />
Ethernet layer monitoring<br />
<strong>12</strong>
SFN GPS free Synchronization<br />
• “GPS is owned and operated by the<br />
United States Government as a national<br />
resource. Department of Defense (DoD)<br />
is the steward of GPS….”<br />
• Jamming.<br />
• Interference by other services as<br />
“LightSquared” (4G-LTE-satellite<br />
network).<br />
13
<strong>Net</strong>work based Time Transfer solution for SFN<br />
applications. GPS Free Synchronization using DTM.<br />
• Redundant distribution – uses network<br />
protection<br />
• Not sensitive disturbance<br />
• Simpler trouble shooting<br />
• Reduce CAPEX – no extra equipment at<br />
transmitter<br />
• Auto configuration<br />
MPEG<br />
mux<br />
Studio<br />
SFN<br />
adapter<br />
nxASI<br />
Access<br />
1 PPS 10 MHz<br />
Ref.<br />
clock<br />
STM-1<br />
Transport<br />
<strong>Net</strong>work<br />
Access<br />
Access<br />
STM-1<br />
STM-1<br />
Access<br />
Access<br />
STM-1<br />
Transmitter station<br />
nxASI<br />
STM-1<br />
Access<br />
Access<br />
Sync Modulator<br />
1 PPS 10 MHz<br />
STM-1<br />
STM-1<br />
Transmitter station<br />
nxASI<br />
Sync Modu<br />
1 PPS 10 MHz<br />
-lator<br />
14
ArSat, Argentina<br />
“Largest <strong>ISDB</strong>-T <strong>Net</strong>work Implementation to date”<br />
© <strong>Net</strong> <strong>Insight</strong> 2009<br />
“Arsat is basing the <strong>ISDB</strong>-T Transport network over fiber on<br />
the Nimbra Platform. After an evaluation and test, the<br />
Nimbra platform showed to fulfill the high quality and control<br />
that is required for our national distribution network”, says<br />
Mariano Goldschmidt, Marketing Manager at Arsat<br />
• 60 Sites (<strong>12</strong>0 Nimbras)<br />
• 700 km SFN network<br />
• 4 + 4 BTS’s (Public + Private)<br />
• 75% of the population covered
Telenor Norkring - <strong>DTT</strong> Programme Distribution<br />
• Key roll-out figures for transmission network<br />
– Number of <strong>Net</strong> <strong>Insight</strong> 300s : 542<br />
– Number of <strong>Net</strong> <strong>Insight</strong> 680s : 38<br />
– 320 <strong>DTT</strong> transmitter stations are fed by telecom links<br />
– 16 000 access ports (Ethernet, ASI, E1, AES/EBU)<br />
– Total distance ASI-connections for mux1-3 corresponds to 2,4 x<br />
times around the earth<br />
– >10 000 km radiolinks for <strong>DTT</strong> (mainly NEC)<br />
– > 6 000 km FOT<br />
– 87,13 meter Nimbra network equipmenents nodes when<br />
stacked, or 3,7 tons<br />
• Time Transfer (TT) function for SFN<br />
– Whole Norway is SFN with 4 SFN regions for TV and one<br />
SFN region for Radio<br />
– Launch of the ”2008-regions” operational with TT from 1st of<br />
November 2008<br />
– Change-over to TT from GPS for existing <strong>DTT</strong> network is<br />
planned for Q1/2009
Norkring <strong>DTT</strong> Program Distribution<br />
<strong>Net</strong>work structure<br />
• Core <strong>Net</strong>work<br />
– 2,5Gbit/s Optical Channel between<br />
Regionportals/remux sites<br />
– Ring structure and separate infra<br />
structure<br />
• Regional <strong>Net</strong>work RL 3+1/4+1<br />
– 100 RL hops in existing core network<br />
– 20 new RL hops for <strong>DTT</strong><br />
• Access <strong>Net</strong>work RL<br />
1+0 or 2+0<br />
– 380 new RL hops for <strong>DTT</strong><br />
Norkring Transmission <strong>Net</strong>work<br />
Leid samb. Optisk kanal (2,5Gbit/s)<br />
Radiolinje 3+1 STM-1<br />
ATM<br />
ATM<br />
ATM<br />
ATM<br />
ATM<br />
ATM<br />
ATM<br />
ATM<br />
ATM<br />
ATM<br />
ATM<br />
ATM<br />
ATM
Teracom – First all IP DVB-T2 network<br />
• Nationwide IP/Ethernet network built with <strong>Net</strong> <strong>Insight</strong><br />
Nimbra platform.<br />
• Services<br />
• DVB-T2<br />
• Contribution<br />
• Radio (FM, DAB+)<br />
• Mobile backhaul<br />
• Time Transfer for GPS-free SFN synchronization<br />
• Transport network integrating both optical and IP links<br />
"This is a strategic choice for Teracom and it will support our long term<br />
objective to grow our businesses in Sweden and abroad.”<br />
Peo Gaasvik, CTO at Teracom<br />
2010
19<br />
Christer Bohm<br />
Business development Latin America<br />
christer.bohm@netinsight.net<br />
Daniel Diniz<br />
Regional Sales Manager Brazil<br />
daniel.diniz@netinsight.net<br />
<strong>Net</strong> <strong>Insight</strong> AB<br />
Box 42093, SE-<strong>12</strong>6 14 STOCKHOLM<br />
Visiting address: Västberga Allé 9<br />
http://www.netinsight.net
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