Next Generation Access

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12 Δεκ 2013 (πριν από 3 χρόνια και 6 μήνες)

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Next Generation Access





BT/ISPA: 27
th

July 2007

Agenda


BT’s latest thinking


Overview



Bottlenecks & Points of Interconnection



Complexity



Risk Sharing



Flexibility for Trials




Broadband UK:

affordable, available and attractive?


Top of G8, better than mains water


Vast majority commercially funded




Infrastructure competition: LLU, cable,
wireless in over 70% of the country


Even wider set of technologies for
broadcast applications (esp. TV)


Hundreds of nationwide service
providers with a number of wholesale
providers



E.g., IP TV, mobile over broadband,
broadband on the move, IP telephony,
hybrid platforms...


Bundles and packages with wireless,
landlines, software as a service








99.6% broadband
availability, over 12 million
subscribers



One of the lowest prices
in the world








Service and commercial
innovation



Ample bandwidth

for the vast majority today?


Bandwidth and price tend to dominate marketing messages


“simple” to understand and compare, or is it?


Typical customer uses much less than ‘last mile’ capacity


Average bandwidth usage <30 kbit/s


Peak individual throughput much more constrained by ‘internet’
and servers, peak time of day, also backhaul and core networks


But some intensive users e.g. streaming SDTV, peer
-
to
-
peer file
transfer >200 MB/hour
-

who pay no extra


However BT aware of growing public debate and keen to engage
with end customers, Ofcom, CPs and other stakeholders e.g. BSG,
content industry


With long investment lead
-
times for NGAs, important to get right
balance between supply
-
led and demand
-
led approach and take
account of ongoing technology evolution e.g compression




Business

Where is the last mile bandwidth an issue?

What else drives customer experience?


Example applications requiring different transmission rates
& Quality of Service

Internet Access

Best Effort (e
-
mail, online
gambling etc)

On
-
line Gaming

PC, Console P2P

VoIP Communications

(BE PC
-
PC, off
-
net PSTN
quality)

Video
-
Communications


(web
-
cab to TV, Video calls,
Conference)

TV & Video

VoD download/streamed, SDTV,
HDTV

Business applications

Software as a service, IP
-
Centrex, VPN

Need for high
upstream rate as well
as download rate








Gaming

QoS





Service


level




Best Effort

Access (d/s) Bandwidth

100 kbps

1 Mbps

10 Mbps

10 kbps


HDTV

Video
-
on
-

demand

VoIP

Internet Access

applications

Video telephony

Video Conferencing

???

BT’s Access Network

Today

Local

Exchange

Telephone

Pole (DP)

Customer

Overhead

Distribution

Underground

Distribution

Backhaul

E
-
side
Cables

D
-
side
Cables

Street

Cabinet

(PCP)

In Confidence

manual cross
-
connection

of e
-
side and d
-
side pairs

Street

Cabinet

(PCP)

BT’s Access Network

Today

Local

Exchange

Telephone

Pole (DP)

Customer

Overhead

Distribution

Underground

Distribution

Backhaul

E
-
side
Cables

D
-
side
Cables

…some older cabinets are
more challenging!

Whilst some cabinets are modern
and easy to work with…

In Confidence

Technology provides a number of options to
‘accelerate’ last mile bandwidth

Bandwidth (Mbit/s)[1]

DownStream

(Headline)

Indicative
DownStream

(Median)

Indicative
UpStream

(Headline)

Indicative
Upstream

(Median)

ADSL


Exchange based

8

4
-
6

0.8

0.75

ADSL2+ (MSAN)


Exchange based

24

6
-
10

0.9

0.75

FTTC
-

VDSL2

c50

22
-
25

c24

9

FTTP/GPON

c75+burst

c75+burst

40+burst

40+burst

Broadcast satellite

100s

100s

n/a

n/a

Broadcast terrestrial
digital TV

10s

10s

n/a

n/a

Wireless (HSPA, LTE,
WiFi, WiMax)

10s

1
-
5++?

<1

<1

BT’s strategy for UK broadband infrastructure

Maximise the performance of existing copper infrastructure


Fix the customer experience issues starting from marketing
messages, to selling, provisioning and operating


Tackle residual areas of non availability, making it near ubiquitous,
with public funding support


Upgrade the current copper based broadband to ADSL2+


Develop “hybrid” solutions: broadband, satellite/digital terrestrial,
storage/processing, software


Exploit 21CN investment to provide much more throughput capacity at

lower cost; make this a competitive advantage for ‘rich content’ services (TV)


Provide targeted solutions to “NGA” with the best technology and commercial

model in each case


Fibre to the Premises in Greenfield development


Selective participation in government funded opportunities where
‘state aid’ case is clear.


Develop a ‘targeted deployment’ Equivalent proposition


Re
-
endorse the regulatory principles that have served us well to date

(Equivalence in particular, as it drives the risk sharing and volume, both critical

for the commercial case to work) but reflect the “NGA” requirements in the detail


Communicate our plans and rationale openly to manage public policy

pressure ensuring that BT does not get ‘held responsible’ for UK NGA

investment (or lack/delay thereof)

Satisfy the vast

majority of needs

with our existing

copper network

Continue

investment

in core network

Develop

targeted NGA

solutions

Re
-
endorse

Equivalence

Actively engage

customers and

stakeholders

NGA becomes targeted


Fibre deployment requires a lot of civil engineering


Requires time and money so inevitably some opportunities will
be captured before others


NGA investment becoming ‘targeted’


Where new greenfield sites are built


Where customers pay


Where developers or other commercial investors pay


Where taxpayers pay (with consequences to commercial
investment?)


...

How to make targeting fair and effective?

Vision: Targeting NGA to where
customers demand is, Equivalently


Fibre To The Cabinet (FTTC) solution evolution


Typical BT cabinet 300 lines/customers; BT has over 90’000
cabinets


May need a new powered cabinet required for FTTC; minimum
commercial level of about 80 subscribers may be difficult to
reach (25% of all lines in a cabinet) (assume £10/month
premium); May be simpler/lower cost options as technology
develops.



Establish a ‘trigger level’ and prepayment by Communication
Providers to determine where to deploy


Make it possible to deploy ‘anywhere’ but get paid up front to reduce
‘stranded cash’ exposure


Nationwide deployment but BT (and any CP) would have a choice
where to deploy roll
-
out depending on customer demand



Next Generation Access provided by Openreach at ‘Layer 2’ level at
exchange


Broadband electronics in Openreach


Minimal difference in the end customer and Communication
Provider interface whether FTTP or FTTC


Review of the operationally and commercially difficult

sub
-
loop product currently in the Undertakings


New

technology

solution

New

commercial

model

New point

of equivalence

(Openreach


BTW)

Sub Loop Unbundling vs Wholesale layer 2 service

Sub Loop

Multiple cabinets

Multiple backhaul

Multiple tie cables

<10% of lines accessible*



Wholesale Layer 2

Shared cabinet

Shared backhaul

Shared tie cable

>80% of lines accessible*

* Assumes aggressive commercial model:
-

high penetration rates, additional revenue, multiple CPs

Analysys report for OPTA, Jan 07
conclusions on Sub loop



“the use of SLU by an alternative provider is not economically
viable as an alternative to continuing to use LLU…..we estimate
that a business case for SLU would require both:


a market share greater than 55% of all broadband lines
(including cable) in all areas served


Our highest estimate for incremental revenue (which
assumes an increase in ARPU across all broadband users of
EUR10 per month”

Complexity


Likely multiplicity of operators owning NGA
infrastructure


Patchwork deployment


Range of possible models


including developer
-
led
and ‘campus’ models


BT’s SMP and USO not applicable?


Need for new approach to ensure connectivity and
interoperability


and choice of downstream supplier


Long Rollout timeline (Civil works)

‘Hiding’ the infrastructure complexity to enable efficient
innovation and competition nationwide

End User

CP


Wireless Access

EU


Fixed and Wireless

S

Voice & Data

Ethernet

ONT 1

ONT N

32

Split

CP1

CP’N’

R

OLT

Enhanced Backhaul Offers

D
-
side

Copper

Legacy E
-
side

Openreach

Handover point

MSAN

Fibre backhaul

External Network

Voice

& Data

T

SLU

NTE5

CP1

CP’N’

ONU

CP1

CP’N’

OLT

Wifi WiMax

2G 3G


Pt
-
Pt Access Fibre FTTP

PON Access Fibre FTTP

CP1

Core

CP2

Core

CPN

Core

Ethernet

FTTCab


Copper DSide



Common Ethernet
presentation

“Layer 2” and standardised
‘OSS’ to Unify Market above a
limited range of physical media
options


Fibre to Cabinet


Brownfield


Point

Point Fibre


Major
business sites


Fibre to Premises (GPON)
Greenfield


Other technologies as built


Fibre and Wireless are
complementary


Next Generation Access Infrastructure




A mix of Fibre Access Network designs with a unified service offering


A basis for sustainable long
-
term access network investment

Infrastructure investor x, layer 2

Reaffirming the regulatory principles
and updating the “detail”


Openreach formed to deliver underpinning infrastructure and
Equivalence of Input for all


Communication providers and BT’s downstream businesses are
equal


Equivalence should continue in NGA


Openreach is only successful if the industry as a whole is
successful


Recognising the narrowing reality of ‘bottleneck’ assets in light of
technology and infrastructure competition


Encouraging innovative ways to trial without making commitments to
particular products or roll
-
out to be available


Symmetric treatment of all investors in new assets


Reviewing the universal service obligations and funding in light of
multiple private and public investors and value chain fragmentation


Stimulation of competition in higher layer network services and
applications on all infrastructure



Investment Risk


Agreement on need to reflect risk/return



There are possible options


Trigger approach with up front payments


Anchor pricing


Utility regulation



BT open to suggestions and keen to explore
alternatives










Flexibility for trials


Technical trials are essential first step



May be ‘exceptional’ ‘semi
-
commercial’ cases where
more dynamic cross
-
BT working required to develop
feasible ‘real world’ solutions


geographically


restricted


involving other CPs


testing demand
-
led models


will require ‘experimental’ approach



Need for exemptions?


UK NGA Vision?

Not whether the UK has a monolithic NGA or not, but:


An evolutionary delivery of innovative services at affordable
prices to those who want to buy them, which means:
-


Responding to real demand


In a commercially and technically innovative way


That enables effective downstream competition
everywhere


And rewards the risk investors take