Post on 15-Jan-2016
1
UDSLUDSL Uni-DSL - One DSL for Universal Service
2
DSL
Cable
VoIP
Wireless LAN
TI Broadband - From Infrastructure to EndpointsTI Broadband - From Infrastructure to EndpointsTI Broadband - From Infrastructure to EndpointsTI Broadband - From Infrastructure to Endpoints
Infrastructure Premises Endpoints
Public Telephone Network
IPNetwork
Cable modems DSL modems Wi-Fi routers Wi-Fi broadband
gateways Small/medium
business and Enterprise voice gateways
DSL infrastructure products (central office, DLC, remote terminals)
Carrier-class Voice-over-IP gateways
Handhelds Consumer electronics PCs IP phones
3
Worldwide DSL Market – Full of Opportunity
0
50,000
100,000
150,000
200,000
2002 2004 2006 2008
WW DSL Subscribers (000s)
DSL maintaining 70% share of broadband market worldwide for data services
VoIP services are starting to be provided by operators
Video is the next opportunity for DSL market growth…
Source: TI estimates based on various industry reports
4
Operators’ Next Generation DSL Battleground
• Need to deliver maximum bandwidth and near ubiquitous coverage in a converged network Video services (HDTV and PPV)
Near 100% coverage with data service
Managed networks
Voice services: convergence of various voice networks
• Carrier Network Topologies are Changing All major operators are shortening
their loops
Deployment at wiring cross connect cabinets is starting
More deployments for MDU/in-building networks
Multiple line card designs
Interop issues will be extensive with multiple standards
High level of development resources required
Carryover from existing designs
Creates Major Issues for Equipment Providers
5
Today everyone thinks VDSL solves their problems, however it is limited Requires Specific Line Cards in the CO
New CPEs need to be deployed
Limited Reach
Not Symmetric
Complicated Provisioning
Interoperability Problems
TI’s Proposal – A DSL Platform Providing Universal Service
Uni-DSL - UDSLUni-DSL - UDSL
VDSL – Limited for the Future
6
Uni-DSL (UDSL)
One DSL for Universal Service Multicarrier solution based on DMT Single chipset support of DMT standards
VDSL1, VDSL2, ADSL, ADSL2, ADSL2+, and Ultra-high speed DSL (UHDSL)
Ultra-high speed end to end solution up to 100 Mbps symmetric over existing wiring (200 Mbps aggregate)
Scalable 800 Mbps digital device for port density for DSL infrastructure 4 ports at 100 Mbps symmetric or 200 Mbps aggregate 8 ports at 50 Mbps symmetric or 100 Mbps aggregate
Opt DS1
f3.75 MHz
UDSL*
0 138 kHz
* Example spectrum; flexible spectrum allows any combinations of upstream and downstream
US1 DS2 US2 DS3
5.2 MHz 8.5 MHz 12 MHz
7
UDSL Offers Support for All DSL FlavorsUDSL Offers Support for All DSL Flavors
CentralOffice
EquipmentShelf
Remote Terminalor Vault
CrossConnect/PrimaryConnect
NeighborhoodWiring
Pedestal
BasementIn Building
MDU
1Kft – 3Kft 4Kft – 6Kft 1 ft 300 ft – 500 ft
Home NID
18+ Kft
ADSL/ADSL2
READSL2
ADSL2+
VDSL/VDSL2FTTU
Remote/ShortLoop DSL
Ultra High Speed DSL
Uni-DSLUni-DSL
Distance from the CPE
9Kft – 12Kft
VDSL Head EndVDSL: Up to 52 Mbps
MDU Head EndVDSL: Up to 52 MbpsUDSL: Up to 200 Mbps
PON Termination (ONT)FTTUVarious Home Networks
Remote DSL/Short Loop DSL Short Loop IVDADSL2+: Up to 24 MbpsADSL2: 1.5 to 12 Mbps
Long Haul IVDNext Generation DLCADSL2+: Up to 24 MbpsADSL2: 1.5 – 12 MbpsADSL: 1.5 – 8 Mbps
Traditional DSLAMs ADSL2: 1.5 – 12 MbpsADSL: 1.5 – 8 MbpsREADSL2: 192+ kbpsLong Haul IVDs
8
Uni-DSL – A Universal Service PlatformUni-DSL – A Universal Service Platform
UDSL equipment in the cross
connect
ADSL – up to 8 Mbps
ADSL2+ – up to 24Mbps
VDSL – up to 52MbpsUltra-high speed – 100Mbps symmetric
Fiber
Cross Connects:
In almost every neighborhood. At most 6000 ft from consumer. Each
holds about 600-800 consumer lines.
Next Gen Needs for U.S. Operators
Long loops and older loops, but natural deployment location at cross connect < 6kft
Need migration path to 3 simultaneous HDTV channels over DSL (minimum)
Remote DSL from cross connect can potentially supply up to 20% of current voice subscribers, who are not reachable by ADSL today
10
Next Gen Needs for Asian Operators
• Korea Maximum loop reach required is 1
km now FTTC and FTTH is next step with
VDSL or higher data rates
• Japan Fiber + VDSL is long term strategy
for operators; most loops under 1 km Fiber to the building with VDSL or
100baseT to provide 100 Mbps symmetric capability for data is needed
• China ADSL with Reach Extension now to
improve coverage followed by ADSL2+, VDSL
11
Next Gen Needs for European Operators
• France Current video strategy
focused on lower data rate DSL; i.e., 6 to 10 Mbps, solution for single channel SDTV over 3 km; eventual evolution to ADSL2+ for multi-channel
• Italy Incumbents are rolling out
video service in 2004 to compete with CLEC (FastWeb)
Interested in high speed symmetric (10+ Mbps) offering to home and small business
• UK Primarily focused on
providing data services and 100% coverage
Interested in deployment at primary connection points (cross connects) if political hurdles can be overcome
Starting to look at deep fiber deployment with VDSL
• Germany Longer loop plant than most
others European operators; up to 4.2+ km
Concentrating on delivering data-only services at a relatively low data rate
Sees remote DSL as potential method to extend reach and lower cost
12
TI’s Current UDSL Activities
Discussions with worldwide operators on concept
Strategic discussions with key customers
Potential to leverage incumbency and capture DSLAM/DLC market opportunities
Looking at standards activity Have over 20 submissions into the standards bodies related to
UDSL concepts
No one is at this level of leadership to drive universal services
Goal to make Uni-DSL an industry-wide effort to drive growth in the DSL market
13
UDSL Makes Video Over DSL Possible
Operators need an affordable option to support all of their network requirements and services
Uni-DSL (UDSL) provides support for ADSL, ADSL2, ADSL2+, VDSL, VDSL2 and a 100 Mbps symmetric ultra-high speed mode
Operators will be able to provide all DMT-based services off of one line card or home gateway, making deployment more affordable
TI is taking a leadership position in making video over DSL services a reality
14
Back Up
15
Performance Comparison: ADSL vs VDSL
16
Performance Comparison: ADSL vs. VDSL
17
UDSL’s Performance Enhancing Features
• Bonding Extend high data rate reach Leverage excess copper pairs
• Dynamic Spectrum Management (DSM) Level 0 with AC7/AR7 Levels 1 to 2 with software upgrade Level 3 ideal in short loop and MDU type deployment with
UDSL• Optimize transmission latency to match applications
Throughput improvements with priority queuing at the CPE Multi-latency for voice vs. video vs. data