DSL technology and deployment VDSL2 Contributed by Sascha Lindecke Director of Marketing Broadband Access Sascha.lindecke@infineon.com

Today there are various DSL Technology Options Family ITU Name Ratified Maximum Speed 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 2003 24 Mbps down ADSL2-RE Reach Extended 8 Mbps down SHDSL (updated 2003) G.991.2 G.SHDSL 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 30 Mbps up VDSL2 - 30 MHz Short reach 100 Mbps up/down

Existing High Speed Technologies Do Not Solve the Problem of Bottlenecks 100 Data rate [Mbit/s] Design only for short loop applications (MDU/MTU) 60 Real bit-rates are too low for multiple (3) HDTV channels VDSL 20 Low bit-rates are insufficient for Triple-Play applications ADSL2+ 8 2 SHDSL 1 km 2 km 3 km 4 km 5 km Line Length 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 Worldwide Versatile Standard 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 1 VDSL Bandplans Short Loops 2 3 4 EFM TC-Layer Bonding OaM QoS New Features 100/100 Mbps 30MHz QoS

VDSL2 - All The Benefits of ADSL/2+, Higher Speeds Than VDSL1 Criteria VDSL2 Benefits Bandwidth Much higher performance for short loops Trellis, SRA, GCI Improved performance Long Reach 90% customer reach + single technology ADSL Compatibility Reuse of existing ADSL infrastructure Quality – Of –Service Enable Triple – Play applications VDSL1 12MHz VDSL2 30MHz VDSL1 None VDSL2 Mandatory VDSL1 1km 3km … VDSL2 VDSL1 None VDSL2 ADSL, ADSL2, ADSL2+ VDSL1 None Dual Latency, Dual Bearer, Pre-Emption VDSL2

VDSL2 Performance Symmetrical 100Mbit/s due to 30MHz bandwidth 250 Symmetrical 100Mbit/s due to 30MHz bandwidth DS ADSL2+ (2.2 MHz) DS VDSL1 (12 MHz) 200 DS VDSL2 (30MHz) AWGN/-140dBm/Hz/ANSI-TP1 150 Improved mid range performance through Trellis/Viterbi coding and Generic Convolutional Interleaver Rate / MBit/s 100 ADSL-like long reach performance due to Trellis coding and Echo Cancellation 50 Reach / m 500 1000 1500 2000 2500 3000 3500 Reach / ft* 1600 3300 4900 6600 8200 9900 11,500 * Numbers are rounded

VDSL-2 Standard – Profiles Tx Power 20.5 dBm ADSL ADSL2+ VDSL2 8b 17.5 dBm VDSL2 8a No US0 w/ US0 14.5 dBm VDSL2 8d VDSL2 12a,b VDSL2 17a VDSL2 30a 11.5 dBm VDSL2 8c Analog Bandwidth 1.1 2.2 8.8 12.0 17.6 MHz 30.0 256 512 2048 2782 4096 # of Tones 3478 DSP Power 4 kBaud 8 kBaud

Bandplans, Annexes, PSDs 2.2 US ADSL2+ DS Annex A: ADL Annex A: POTS 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 25 138 276 640 3.0 3.75 5.1 5.2 5.8 7.05 8.5 12.0 18.1

ADSL2+ Backwards Compatibility Modem DSLAM Phase 1: large installed base – ADSL/2+ Phase 2: DSLAM upgrade CPEs can "stay as they are" VDSL2 Phase 3: selective upgrade of CPEs dependent on selected service ADSL2+ backwards compatibility will make VDSL2 deployment scenario much more attractive for the Carriers and will speed up the technology adoption. 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 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 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 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 Tx Power 20.5 dBm US 12 MHz 20 dBm 2-4k tones ADSL North America EU ADSL2+ VDSL2 8b EU 17 MHz 20.5 dBm 4k tones APAC 4k tones 14.5 dBm 30 MHz 17.5 dBm VDSL2 8a No US0 w/ US0 14.5 dBm VDSL2 8d VDSL2 12a,b VDSL2 17a VDSL2 30a 11.5 dBm VDSL2 8c Analog Bandwidth 1.1 2.2 8.8 12.0 17.6 MHz 30.0 256 512 2048 2782 4096 # of Tones 3478 DSP Power 4 kBaud 8 kBaud

Market Trends – Revenue Forecast Worldwide Total VDSL and VDSL2 IC port and revenue forecast 11/04 VDSL2 volume shipments VDSL shows 90% growth over the course of the next 3 years VDSL is becoming a dominate technology in APAC/Japan

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