VDSL2 Contributed by Sascha Lindecke Director of Marketing Broadband Access Sascha.lindecke@infineon .com DSL technology and deployment
Dec 13, 2015
VDSL2
Contributed bySascha LindeckeDirector of Marketing Broadband [email protected]
DSL technology and deployment
Today there are various DSL Technology Options
Family ITU Name Ratified MaximumSpeed capabilities
ADSL G.992.1 G.dmt 1999 7 Mbps down
800 kbps up
ADSL2 G.992.3 G.dmt.bis 2002 8 Mb/s down
1 Mbps up
ADSL2plus G.992.5 ADSL2plus 2003 24 Mbps down
1 Mbps up
ADSL2-RE G.992.3 Reach Extended 2003 8 Mbps down
1 Mbps up
SHDSL
(updated 2003)
G.991.2 G.SHDSL 2003 5.6 Mbps up/down
VDSL G.993.1 Very-high-data-rate DSL 2004 55 Mbps down
15 Mbps up
VDSL2 -12 MHz long reach G.993.2 Very-high-data-rate DSL 2 2005 55 Mbps down
30 Mbps up
VDSL2 - 30 MHz
Short reach
G.993.2 Very-high-data-rate DSL 2 2005 100 Mbps up/down
Existing High Speed Technologies Do Not Solve the Problem of Bottlenecks
Data rate[Mbit/s]
2
8
100
VD
SL
20
60
Line Length1 km 2 km 3 km 4 km 5 km
ADSL2+
SHDSL
Low bit-rates are insufficient for Triple-Play applications
Real bit-rates are too low for multiple (3) HDTV channels
Design only for short loop applications (MDU/MTU)
VDSL2 = VDSL Speeds with ADSL/2+ Reach and Flexibility
VDSL2 Standardization
VDSL2 standardization started in January 2004
Main technology development in ITU-T
North American system requirements in ANSI/NIPNAI
European system requirements in ETSI
Reached consent in May 2005 (Geneva Meeting)
VDSL-2 Key Features
DMT modulation
– Same as ADSL
– Bandwidth increased from 12 MHz to 30 MHz
– Up to 4096 tones (8x ADSL2+ !)
Worldwide Versatile Standard
– 8 profiles defined for different services
– Different bandplans for the regions
– Variety of PSDs to optimize spectral compatibility
Support for a variety of services
– Integrated Quality of Service features
– ATM as well as Ethernet payload
– Channel bonding for extended reach or rate
VDSL2 – The DSL convergence technology
ADSL2+• Coding• Framing• Long Reach• Upstream 0
VDSL• Bandplans• Short Loops
EFM• TC-Layer• Bonding• OaM• QoS
New Features• 100/100 Mbps• 30MHz• QoS
VDSL2 -All The Benefits of ADSL/2+, Higher Speeds Than VDSL1
Bandwidth Much higher performance for short loops
Trellis, SRA,GCI
Improved performance
Long Reach 90% customer reach + single technology
ADSLCompatibility
Reuse of existing ADSL infrastructure
Quality – Of –Service
Enable Triple – Play applications
VDSL2 30MHz
VDSL1 12MHz
VDSL1
VDSL2
None
Mandatory
VDSL1
VDSL2
1km
3km …
VDSL1
VDSL2
None
ADSL, ADSL2, ADSL2+
VDSL1
VDSL2
None
Dual Latency, Dual Bearer, Pre-Emption
VDSL2 BenefitsCriteria
VDSL2 Performance
0
50
100
150
200
250
0 500 1000 1500 2000 2500 3000 3500Reach / m
Rat
e / M
Bit
/s
DS ADSL2+ (2.2 MHz)
DS VDSL1 (12 MHz)
DS VDSL2 (30MHz)
AWGN/-140dBm/Hz/ANSI-TP1
Symmetrical 100Mbit/s due to 30MHz bandwidth
ADSL-like long reach performance due to Trellis coding and Echo Cancellation
Improved mid range performance through Trellis/Viterbi coding and Generic Convolutional Interleaver
1600 3300 4900 6600 8200 9900 11,500Reach / ft*
* Numbers are rounded
VDSL-2 Standard – Profiles
256 512 2048 4096 34782782
8 kBaud4 kBaud
# of Tones
20.5 dBm
14.5 dBm
11.5 dBm
17.5 dBm
Tx Power
Analog Bandwidth1.1 2.2 8.8 12.0 17.6 30.0
DSP Power
MHz
w/ US0
No US0ADSL
ADSL2+
VDSL2 8c
VDSL2 8d
VDSL2 8a
VDSL2 8b
VDSL2 12a,b
VDSL2 17a
VDSL2 30a
Bandplans, Annexes, PSDs
3.0 3.75 5.1 5.2 5.8 7.05 8.5 12.0 18.127613825 640
2.2ADSL2+
Annex A: POTS
Annex A: ADL
Annex B: 997 A
Annex B: 997 M
Annex B: 997 B
Annex B: 998 A
Annex B: 998 M
Annex B: 998 B
Annex B: 998 0
Annex C
China
US
DS
ADSL2+ Backwards Compatibility
ADSL2+Modem
DSLAM
ADSL2+Modem ADSL2+
Modem
Phase 1:large installedbase – ADSL/2+
ADSL2+Modem
DSLAM
ADSL2+Modem ADSL2+
Modem
Phase 2:DSLAM upgradeCPEs can "stay as they are"
ADSL2+Modem
DSLAM
VDSL2Modem ADSL2+
Modem
Phase 3:selective upgrade of CPEs dependent onselected service
ADSL2+ backwards compatibility will make VDSL2 deployment scenario much more attractive for the Carriers and will speed up the technology adoption.
VDSL2Modem
VDSL2 Line Card
VDSL2 Line Card
ADSL2+ Line Card
Market Trends – Deployment By Region
Europe• Triple-Play with at least 3 DTV channels + 5Mbps surfing + VoIP
• 30Mbps downstream, 3Mbps upstream• VDSL2 compliant• ADSL backwards compatible• 20.5dBm transmit power• Fits into existing ATM infrastructure• ADSL-like long reach performance
USA, Canada• Triple-Play with at least 3 HDTV channels + 5Mbps surfing + VoIP
• 30Mbps downstream, 3Mbps upstream• VDSL2 compliant• ADSL backwards compatible• 17.5dBm transmit power• ADSL-like long reach performance
Main-land China• Triple-Play with at least 3 DTV channels + 5Mbps surfing + VoIP
• 30Mbps downstream, 3Mbps upstream• VDSL2 compliant• ADSL backwards compatible• 20.5dBm transmit power• Fits into existing ATM infrastructure• ADSL-like long reach performance
Japan, Korea, Taiwan• Upgrade of existing 70Mbps services to 100Mbps symmetrical
• 100Mbps downstream, 100Mbps upstream
• VDSL2 compliant• ADSL backwards compatible• 14.5/20.5dBm transmit power• ADSL-like long reach performance
VDSL-2 Standard – Regional Requirements
256 512 2048 4096 34782782
8 kBaud4 kBaud
# of Tones
20.5 dBm
14.5 dBm
11.5 dBm
17.5 dBm
Tx Power
Analog Bandwidth1.1 2.2 8.8 12.0 17.6 30.0
DSP Power
MHz
w/ US0
No US0ADSL
ADSL2+
VDSL2 8c
VDSL2 8d
VDSL2 8a
VDSL2 8b
VDSL2 12a,b
VDSL2 17a
VDSL2 30a
NorthAmericaEU
US 12 MHz 20 dBm 2-4k tones
EU 17 MHz 20.5 dBm 4k tones
APAC
4k tones14.5 dBm30 MHzAPAC
Market Trends – Revenue Forecast Worldwide
VDSL shows 90% growth over the course of the next 3 years
VDSL is becoming a dominate technology in APAC/Japan
Total VDSL and VDSL2 IC port and revenue forecast
11/04
VDSL2 volume shipments
DSL-Forum‘s mission for VDSL-2
Deployability
– Integration of VDSL-2 in the network
– Adaptation for existing TRs
– Enhancement of ITU standards
Interoperability
– Creating a test plan
– Working with the interoperability test labs
– Considering operator requirements
DSL Forum contribution to VDSL-2
WT-114: VDSL-2 Performance Test Plan
– Setting performance targets for VDSL-2
– Considering different regions and profiles
WT-115: VDSL2 Functionality Test Plan
– Test plan for functional compliance to the VDSL-2 standard
– Enables operators to perform homologation of equipment
WT-129: Protocol Independent Object Model For Managing VDSL2
– Based on ITU G.997.1
– Adopting new objects from G.vdsl2
PD-139: Interoperability test plan for VDSL-2
– Enables efficient interoperability testing
– First plugfest planned for January 2006
Conclusion
VDSL-2 is the ultimate DSL standard
– Natural evolution of ADSL2+
– Best exploitation of Copper Plants
– Sufficient bandwidth for the years to come
VDSL-2 is ramping up quickly
– Significant tenders in all parts of the world
– First chipsets and systems available
– Driven by Video over Broadband
DSL-Forum is paving the way for a fast adoption of VDSL-2
– Leveraging the experience and specifications for ADSL-2
– Assures interoperability and standard compliance
– Enables mass deployment by seamless provisioning