The information presented is subject to change without notice. Alcatel-Lucent assumes no responsibility for inaccuracies contained herein.

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1 OPEN template Alcatel, Lucent, Alcatel-Lucent and the Alcatel-Lucent logo are trademarks of Alcatel-Lucent. All other trademarks are the property of their respective owners. The information presented is subject to change without notice. Alcatel-Lucent assumes no responsibility for inaccuracies contained herein. This slide must be kept when distributed externally.

2 The role of VDSL2 in a G.fast world Michael Timmers Fixed Networks Strategist 20 May

3 FTTH has been the next breakthrough for decades COPYRIGHT 2012 ALCATEL-LUCENT. ALL RIGHTS RESERVED.

4 Today, FTTH is slowly ramping up, but payback times are still over a decade at best 4 [Domingo2014]

5 A sensible and field-proven approach: Fiber closer to the home VDSL2 vectoring Vplus >200 METER >100 SUBSCRIBERS G.fast <200 METER 10s OF SUBSCRIBERS XG-FAST 10s OF METERS 1 SUBSCRIBER 5

6 COST The operator s ultra-broadband toolkit ( 1 ) Aggregate rates (US + DS) FTTH 2Gb/s ( 1 ) FTTdp-1 (G.fast) FTTdp (G.fast) 50m ( 1 ) 100m ( 1 ) GAP FTTN VDSL2 17a 700m ( 1 ) DISTANCE [m]

7 COST The operator s ultra-broadband toolkit: Vplus fills the gap ( 1 ) Aggregate rates (US + DS) FTTH FTTdp-1 (G.fast) FTTdp (G.fast) 2Gb/s ( 1 ) 50m ( 1 ) 100m ( 1 ) DENSE Up to 200 subs Matches many existing cabinets LONG REACH Bit rate gains to ~500m 17a performance on longer loops COST-OPTIMIZED High density, long reach (vs G.fast) HIGH SPEED Mb/s FTTx Vplus 400m ( 1 ) FTTN VDSL2 17a 700m ( 1 ) DISTANCE [m]

8 COST The operator s ultra-broadband toolkit: Vplus fills the gap FTTH FTTdp-1 (G.fast) FTTdp (G.fast) FTTN VDSL2 vectoring (17a + Vplus) DISTANCE [m]

9 Vplus allows mixed vectoring with VDSL2 17a (not possible with VDSL2 30a) VDSL2 30a 8.6kHz VDSL2 17a Different tone spacing Vectoring not possible Vplus Same tone spacing Vectoring possible 25kHz 17.6MHz 30MHz 4.3kHz FREQUENCY SPECTRUM 35MHz optional 9

10 Vplus is cost-optimized for 200 m to 500 m 10

11 Vplus also addresses many uncertainties related to G.fast [BroadbandTrends2015] 11

12 Vplus is being standarized as VDSL2 profile 35b ITU SG15 Q4 currently standardizing new Annex for enhanced data rates with vectoring compatibility with profile 17a Described in Annex Q of VDSL2 standard (G.993.2) Describes a new profile 35b kHz sub-carrier spacing (same as 17a) MHz bandwidth (8K tones) Aggregate Achievable NDR of at least 355 Mb/s Max ATP: 17dBm 17dBm = 14.5dBm (17a) + 11 dbm (for extension from to 30 MHz at -60 dbm/hz) + 1 db for overall performance optimization extension from 30 to MHz at G.9700 Limit PSD Mask does not require an additional Tx power allowance Goal to consent: Feb/16 OR SOONER 12

13 The proposed bandplans extend deployed 17a bandplans with a full downstream band above 17 MHz 998E17 as currently deployed 998E35 998ADE17 as currently deployed 998ADE / Freq (MHz) upstream band downstream band Limit PSD masks: At typical VDSL2 levels below 30 MHz Follows G.fast PSD mask (G.9700) above 30 MHz 13

14 Vplus prototype trialed at KPN 14

15 Choose the best tool for the job 17a Vplus G.fast Short loops ( 250m) Medium loops ( 500m) Long loops (>500m) Density (max subs) 400p 200p 16-48p Outside plant costs $ $$ $$$$ Standards draft text available 15

16 FTTdp FTTN Choose the best evolution path 1000p 50M 150M 350M 500M-1G 1-2G 10G Data rate 400p VDSL2 Vectored VDSL2 200p 48p Vplus 16p G.fast 159MHz 212 MHz TBD TBD 1p XG-FAST Density 16

17 Alternative: prepare for G.fast introduction at Vplus introduction LOW SERVICE MID SERVICE HIGH SERVICE 17a V+ 700 m 300 m CABINET LOW SERVICE is delivered with 17a MID SERVICE is delivered with V+ 17

18 Dual-mode CPE with cable-cut DPU 18

19 Triple-mode CPE with cable-cut DPU 19

20 Dual-mode CPE with no cable-cut DPU 20

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