1. Open Forum 2016
10th November 2016

2. NICC DSL Task Group – A year in review
NICC DSL TG
NICC DSL Task Group – A year in review
Kevin Foster CEng. FIET NICC DSL Task Group Chairman
10 November 2016

3. Outline NICC DSL Task Group scope Work Plan and progress
Who participates and how we work
Key work and publications in 2016
Outlook for 2017
Summary

4. DSL TG scope
Radial
distribution
Exchange
manhole
MDF
PCP
SCP
Underground cable
E-Side
D-Side DP
Overhead
Specifications and guidelines relating to the use of Digital Subscriber Line technology in the unbundled UK metallic access network BT
KCOM
Key documents are the UK Access Network Frequency Plans and Metallic Path Facility specifications and guidelines

5. NICC consensus approval
Progress and plan
Work Item #
Description
Target ND
Status
318/1
BT ANFP (change to enable G.fast)
ND1602
Published March 2016
318/2
BT ANFP guidelines
ND1405
Published July 2016
321
Overlapping spectrum study and change to BT ANFP and BT ANFP Guidelines
Study report
ND1520 and then uplift
ND1602 and ND1405
Study work ongoing to look at technical options for VDSL2 and G.fast
1st stable draft
TG approval
NICC consensus approval
Publication

6. Recent publications
Updated to enable latest G.fast DSL technology from the ITU-T
Enables ultrafast speeds
Up to 1Gbit/s on short loops
Mbit/s on longer loops
Two new parts added to ANFP
Part E
Part F

7. ANFP change summary
G.fast is defined in ITU-T Rec. G.9700 (PSD) and G.9701 (transmission system)
Time Division Duplex (TDD) based transmission system, using the spectrum between 2 and 106MHz, delivering up to 1Gbit/s aggregate on phone wires.
Support of vectoring (real time crosstalk cancellation) and retransmission are mandatory in both upstream and downstream directions.
Two new ANFP parts (E & F) have been added to ND1602 (ANFP) to enable G.fast
Enables G.fast to use spectrum between 19 and 106 MHz in BT’s network
Spectrum compatibility with existing VDSL2 systems which use up to MHz
Part E provides the limits applicable to FAST DSLAMs deployed either at alongside existing Part B (VDSL2) locations or closer to the customer premise than the existing Part B location.
Part F provides the limits applicable to FAST modems and can only be used when communicating with a DSLAM operating under Part E. U1
0.138
3.75
5.2
8.5 12 14
17.664 D2 D3 U2 D1
f (MHz) U0
0.025
TDD 19
106
VDSL (998ADE17)
G.fast

8. Recent publications
Updated to enable latest G.fast DSL technology from the ITU-T
Provides guidance explanation for the BT ANFP (ND1602)

9. Meetings The DSL TG is very active
Meetings are held approximately monthly
10 meetings in the last year
4 Face to face meetings hosted by a NICC member
6 Teleconferences

10. Members currently participating
Operators/CPs
Equipment/chip vendor
Other organisations
Sky
Adtran
Ofcom
Talk-Talk
Nokia/ALU
BT Group (inc. Openreach)
ASSIA
KCOM
ECI
Vodafone
Huawei
Intel (Lantiq)

11. NICC DSL TG members area

12. Outlook for 2017
Complete the technical study into options for overlapping VDSL2 and G.fast spectra
Update the BT ANFP & guidelines to support G.fast spectrum starting below 19MHz

13. Summary Another busy year for the NICC DSL Task Group
Supported by active engagement from key industry stakeholders
Communication Providers
Vendors
Ofcom
2 key deliverables completed enabling the latest DSL from the ITU-T (G.fast)
Ground breaking work ongoing enabling co-existence of G.fast and VDSL2 in the region up to 17.6MHz which will lead to update to BT ANFP and guidelines
New members welcome

14. Thank You