Delivering copper-based broadband access services at 100 Mbps. George Ginis February 12 th, 2014

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1 Delivering copper-based broadband access services at 100 Mbps George Ginis February 12 th,

2 Vectored VDSL Needs More than Copper Network Operations Support Systems DSL monitoring and optimization Home network monitoring and optimization Integration Contactcenter tools Management System Planning/ Marketing tools Technician guidance 2

3 Sources of Degradation in the Field Noise and interference Other DSLs (crosstalk) In home sources Outside sources Wiring problems (in home and outside) In-home Interference DSLAM Crosstalk DSM Core Network Copper Impairments Environment changing with Daily appliance usage patterns Daily broadband usage patterns Customer adds and drops Construction in the community 3 Radio Interference

4 Diagnostics and Optimization Loops Collected data are stored Diagnostics are produced for all lines Problem lines undergo optimization All lines are monitored 4

5 Best practices for delivering Vectored VDSL 5

6 Roadmap to Vectored DSL Phase 1 Upgrade Network for Vectoring Phase 2 Upgrade Customers for Vectored Speeds Phase 3 Assure Service to all Customers Capabilities Tasks Select upgrade sites Replace/upgrade DSLAMs/CPEs Fix plant issues Predict vectored rates Identify required maintenance Offer vectored services Move customers to vectored speeds Qualify customers for vectored services Ensure coexistence with legacy lines Track performance Identify underperforming lines Apply corrective actions Mitigate noncrosstalk noise Diagnose vectored line faults Facilitate customer self install 6

7 Predict Vectored Rates Estimate rate gain per line and per site before upgrade Optimize site selection and service design Maximum Stable Downstream Rate (Mbps) New revenue Without Vectoring With Vectoring Geographical coverage Customer retention Return on investment Select optimization strategy Line number Combine rate predictions with marketing data Select sites and design services 7

8 Identify Required Maintenance Identify line faults prior to vectoring activation Intervene selectively avoid a large scale grooming campaign Identify line faults affecting vectoring Organize effort by geography and cable Apply proactive maintenance 8

9 Qualify Customers Accurately qualify customers using long term DSL data Expand the revenue opportunity For each service product Reduce false positives Track qualification metrics Reduce false negatives Adjust qualification rules 9

10 Ensure Coexistence with Legacy Lines Apply intelligent power control for downstream and upstream Introduce vectored services seamlessly Percent of VDSL Lines Vectored Coverage with Current Legacy VDSL Bit Rates Legacy VDSL cable fill 0% 10% 20% 70% of all lines eligible for 80 Mbps even with 20% legacy lines Prepare hardware Configure reduced power profiles Enable softwarebased power control Vectored VDSL Bit Rate (Mbps) Activate vectoring 10

11 Facilitate Customer Self-Install Empower the customer Ensure a smooth installation process Analyze individual line data Customer self install app: Produces simple recommendations Uses real time diagnostics Provides analysis for all connection segments Project performance with technician install and with customer self install Identify if technician installation is required based on service requested Proceed with technician install Proceed with customer self install 11

12 Mitigate Non-Crosstalk Noise Automatically reconfigure underperforming lines Achieve high quality of experience Non vectored Vectored Unmanaged 15 % 45 % 7% 8% Apply new configuration for line Detect if line is underperforming Managed Lines with poor quality Analyze individual line data 12

13 Diagnose Vectored Line Faults Identify faults within the vectored group Increase contact center and field force productivity Verify vectoring gains Detect excessive crosstalk Identify simultaneous retrains Discover non-vectored CPEs Type of fault Diagnostics Distance to fault SELT Diagnostics Complete fault identification Time of occurrence Periodicity Analysis Source of disturbance Vectoring Analysis 13

14 Software unbundling 14

15 Can Lines Terminate at Different DSLAMs? Vectored DSLAM of Provider A Vectored DSLAM of Provider B Vectored Services Provider A Vectored Services Provider B Preferred for cross talking pairs to terminate at same DSLAM Cancellation requires heavy data exchanges between transceivers Cross DSLAM cancellation is technically possible But no standardized interfaces exist for cross DSLAM cancellation Bit stream access is possible alternative But limits control of access performance Can providers differentiate their DSL service offerings? 15

16 Vectored Port Control for Single Provider Other Management Systems Northbound Interface Database Diagnostics and Optimization Equipment Interface Management System Access Network 16

17 Vectored Port Control for each Provider Provider A Provider B Northbound Interface Authorization Engine Northbound Interface Diagnostics and Optimization Database Diagnostics and Optimization Equipment Interface Multi-tenant Management System Access Network 17

18 Summary Broadband access over copper at 100 Mbps is a reality Vectored VDSL requires a management system Software unbundling decouples access hardware from the service 18

19 Thank you 19