VDSL2 Vectoring - Telekom Austriacdn1.telekomaustria.com/final/de/media/pdf/Vectoring.pdf · Target...
Transcript of VDSL2 Vectoring - Telekom Austriacdn1.telekomaustria.com/final/de/media/pdf/Vectoring.pdf · Target...
Capital Market Day, 15 January 2013
VDSL2 Vectoring
Cautionary Statement
“This presentation contains certain forward-looking statements. Actual results may differ materially from those projected or implied in such forward-looking statements. Forward-looking information involves risks and uncertainties that could significantly affect expected results.”
2 Capital Market Day 2013
Overview
• What is vectoring?
• Board Level Vectoring versus System Level Vectoring
• Compatibility issues
• Next steps
3 Capital Market Day 2013
What is Vectoring?
Each customer suffers from other customers using the same binder (Crosstalk, FEXT, Noise)
This reduces bitrates by 45 – 50% (compared to the situation of having only one customer on the binder)
Vectoring gains back up to 90% of lost bandwidth
Standardized technology according to ITU-T Standard: G.993.5 (May 2010)
Crosstalk Signal Transmitted
Signal Received
Signal of origin
„Anti Signal“ (Vectoring)
Signal Received
Crosstalk
Without Vectoring:
With Vectoring:
Generated Signal (Vectoring)
4 Capital Market Day 2013
DSLAM is Reporting Crosstalk Between Copper Lines = Disturber Matrix
Crosstalk before Vectoring
Disturber
Cu
sto
mer
5 Capital Market Day 2013
Vectoring Eliminates Crosstalk
Disturber
Cu
sto
mer
Crosstalk after Vectoring
6 Capital Market Day 2013
Field Trial in the City of Korneuburg with Board Level Vectoring
= Vectoring per line card
• Max. 1 line card or 48 customers per cable or cable binder
• For more than 48 customers
• Cable topology must be taken into account
• Low usage and complex OSS implementation
• Solution fitting well to FTTB and FTTC with few customers
Board Level Vectoring (BLV)
DSLAM in a Street Cabinet
Cable/Binder Max. 48
Max. 48
Line card: Shelf:
7 Capital Market Day 2013
Field Trial in the City of Korneuburg with Board Level Vectoring
Performance Increase in Korneuburg
85 Mbit/s 508 m
w/o Vectoring
with Vectoring
• Trial confirms result of laboratory
• Service Bitrate between 50 and 80 Mbit/s depending on the distance
Vectoring Proofs as a Cost Efficient and Stable Way to Offer High Bandwidth Speed
8 Capital Market Day 2013
= Vectoring at the Shelf-Level
• Max. 384 customers per cable or cable binder
• Simple planning and provisioning processes: cable topology has not to be taken into account
• A Vectoring processor card is additionally required to evaluate and compensates crosstalk
• Solution fitting well to FTTC with more than 48 customers per site
A1 will Mainly Deploy System Level Vectoring
System Level Vectoring (SLV) – 2nd generation of Vectoring technology
Cable/Binder
Vectoring Processor Card:
Line card:
Max. 384
Shelf:
DSLAM in a Street Cabinet
9 Capital Market Day 2013
98.7% of All VDSL2 Modems in A1 Network are Compatible with Vectoring
Modems
• All VDSL2 Modems of A1 supports vectoring
• Less than 1.3% legacy modems in A1 network • Replacement or upgrade
required
0
10000
20000
30000
40000
50000
60000
70000
80000
90000
100000
333 m 761 m 1015 m 1348 m 1568 m 1839 m 2172 m kbps
Vectoring without legacy modems
8 Legacy modems -> Vectoring effect gone
Effect of legacy modems on Vectoring
10 Capital Market Day 2013
Next Steps
Commercial and Technological Development
• Acceptance testing and integration of ASIC based processor card (up to 384 customers)
• Preparation of commercial launch
Planned Coverage Target 2013: VDSL2 Vectoring Deployment
• Vectoring as standard technology for
FTTC
• Focus on System Level Vectoring
• Card seeding until deployment of the ASIC based processor card
in % of homes
0.0%
2.0%
4.0%
6.0%
8.0%
10.0%
YE 2013 YE 2016
Local Loop Unbundling
• Legal Framework still under discussion
11 Capital Market Day 2013
Thank you!
12 Capital Market Day 2013