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Mobile BroadbandNetwork Costs
Modelling network
investments and keycost drivers
February 2011
inormatm.com
7/28/2019 MobileBB_NetworkCost
2/1202
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The Intelligence Centre includes 10 ocused
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and secondary research aimed at helping you
make better business decisions.
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organisations better inormed
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combines intelligently sourced primary data rom
the leading mobile industry players with reliable
orecasts and an unrivalled analyst support
service. We have close relationships with the
leading operators, vendors and regulators globally
and we have a dedicated team o orecasters,
ensuring that your decisions are underpinned by
only the most up-to-date and accurate market
data, orecasts and KPIs.
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the industrys leading source o broadband, multi-
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Inorma Telecoms & Media delivers strategic insight ounded on global market data and primary
research. We work in partnership with our clients, inorming their decision-making with practicalservices supported by analysts.
Our aim is to be accessible, responsive and connected, both to the markets we serve and to our
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Our services drive decision-making. Our data, forecasting and analysis, supported by interaction with
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7/28/2019 MobileBB_NetworkCost
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Introduction
Kris Szaniawski
Principal Analyst
Inorma Telecoms & Media
In recent years we have seen an explosion
in mobile data trac driven by signicant
improvements in user experience and at-
rate data plans. Although this has increased
operators data revenue it has also led to a
decoupling o usage and revenue. As usage
increases, costs can now rise aster than
revenues, leading to lower margins.
This shit in the underlying economics o
a network has meant that cost control has
now become the primary strategic ocus o
many operators. As a result, we have received
numerous requests rom our clients or
greater transparency and an understanding
o the uture costs o networks. In response
to this we have undertaken a practical,
robust, independent study o network cost
behaviour and the uture cost per GB.
In order to ully understand network costs
we have built a modelling tool, which
allows us to change key actors and utilise
our incredible wealth o market data and
orecasts. As well as using this tool in our own
analysis and research we are able to:
Work closely with clients to change the
parameters and input options based on
their own criteria
Present our ndings back in an interactive
one-to-one or one-to-many strategysession
Present a number o scenarios, based on a
clients particular criteria
Answer questions and provide advice on
the back o this exercise.
This is a new service or clients and is
principally aimed at network operators
and inrastructure vendors that want an
independent perspective to eed in to their
business strategy, identiy cost savings,
assess vendor claims or to support business
development and marketing activities.
As well as including an example o our
analysis, this document contains urther
inormation on the project and deliverables.
To learn more about the benets it could
bring to your organisation:
call us on: +44 (0)20 7017 4994
or email: [email protected]
Contents
04
Case study on meeting the UK capacitycrunch: LTE not economically viablebeore 015
05
Project scope and methodology
08
The Analysts
10
Utilising our insight
7/28/2019 MobileBB_NetworkCost
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Meeting the UK capacity crunch: LTE noteconomically viable beore 2015
Duetotheirdensedeploymenttomeet
coverage requirements, the UKs HSPA
networks will be able to handle current
and uture trac demands. Inorma
does not expect trac congestion to
start appearing until 2013 and even
then only in certain hotspot areas.
Withthecurrentmobileuserbehaviour
patterns in the UK, large-scaleLTE deployment does not oer an
economically viable solution to meet
trac demand.
InformaestimatesthatanewLTE
deployment will cost an additional
US$58 million compared with upgrades
to existing networks, assuming that the
LTE deployment begins during 2013.
Costpergigabyte(cost/GB)intheUK
is orecast to be US$6.79 during 2011,
gradually declining to US$2.74 during
2015.Giventhatnetworkdeployment
is primarily coverage-driven and
networks are densely deployed, there
is signicant unused capacity in the
network throughout the orecast period,
increasingthecost/GBaboveaverage
values.
Background
Inorma has created an end-to-end
mobile-network-planning tool, used here
to identiy key cost drivers when deploying
a new mobile broadband network. Using
Inormas orecasts and subscriber data, it
is possible to model a specic set o inputs
that resemble a real-lie network and draw
conclusions according to the country
prole, subscriber inormation, trac
orecasts and several other parameters. By
changing these parameters, it is possible
to identiy the most cost-ecient long-
term network plan in order to meet trac
demands.
This section presents the background to the
mobile-network-planning tool, including
methodology, input data and orecast used
to power this specic scenario.
The inputs or the simulations in themobile-network-planning tool have been
gathered rom Inormas existing databases,
secondary and primary research; they have
been validated by key contacts in industry,
including operators, vendors, nancial
experts and regulators. More inormation
about the methodology can be ound on
page 8 o this document.
Country and operator prole
The country modelled here is the UK, a
developed market where there is erce
price competition and severe capacity
bottlenecks in densely-populated areas.
Mobile operators are currently upgrading
their existing inrastructure to meet the
trac demands to ensure a high quality o
experience or all mobile broadband users
but under current economic conditions this
is challenging and costly.
As in all Inormas network-planning
simulations, geographic areas are
segmented in our distinct groups:
DenseUrban:Areas that are densely
populated in large cities and consist o
both oces and residential housing.
Urban: Metropolitan areas that surround
the Dense Urban geotype and typically
include some oce but primarily housing
locations.
Suburban:Residential areas with a lower
population distribution. These areas are
likely to exhibit high trac during the
evening, when subscribers are at home.
They are also the most demanding in
terms o geographical area to be covered.
Source: Inorma Telecoms & Media
Rural
12%
25%
27%
36%
Suburban
Urban Dense Urban
Fig 2
UK, population distribution
Source: Inorma Telecoms & Media
Fig 1UK, geographical inputs
Country UK
Total population (mil.) 61.6
Population annual growth rate (%) 1.0
Geotype Area (km2)
DenseUrban 11,076
Urban 44,306
Suburban 75,775
Rural 113,663
Dimitris Mavrakis
Senior Analyst
Twitter: @dmavrakis
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Rural: Large areas o open country with a
low population distribution and typically
lower capacity/trac requirements.
Almost two-thirds o the UK population can
be ound in the Dense Urban and Urban
areas, which only account or 3% o the
countrys land area (see gs. 1 and ).
Although Suburban and Rural geotypes
cover by ar the largest share o geographical
area in the UK, the Dense Urban and Urban
locations present the biggest challenge
or mobile operators, since they are highly
populated with demanding user groups
Here mobile operators typically limit cell
sizes to a ew hundred meters in order to
increase capacity and deploy a network with
sucient capacity to service these areas.
However, the Suburban geotype will
also present capacity challenges sincecommuters are likely to use the mobile
network in the evening rather than the
morning hours when the Dense Urban
and Urban locations are likely to be
congested creating new bottlenecks in
non-metropolitan areas. Finally, although
networks in rural locations are likely to be
underused, they still need to be deployed in
order to ull regulations and service areas
where there is no copper inrastructure.
Inorma orecasts that the Dense Urban and
Urban areas will generate by ar the largest
share o trac throughout the UK network
between 010 and 015, ollowed by the
Suburban and Rural geotypes (see g. 3).
Typical base stations rom most vendors
oer the capability to extend coverage
beyond the normal cell sizes. However,
this study is ocused on mobile broadband
network planning where most operators
will seek to balance wide coverage area and
high capacity. Traditionally, operators have
sought wider coverage area to cover as
many subscribers as possible with voice-
oriented networks.
However, these networks have not been
subject to severe capacity constraints in
the same way as current mobile broadband
networks are. In these networks, operators
aim to articially reduce cell size so that
more cells cover a certain area, leading to
a higher total o capacity available to data-
hungry subscribers.
Source: Inorma Telecoms & Media
0
5000
10000
15000
20000
2010 2011 2012 2013 2014 2015
Rural
Totalda
tatrafc(PBperyear)
Suburban Urban Dense Urban
Fig 3
UK, trac orecast by geotype, 010-015
Source: Inorma Telecoms & Media
Dense Urban Up to 1km
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Inorma has dened the cell sizes to be used
as guidelines in the modelling tool (see
g. 4). The modelling tool initially lays out
cell sites in order to cover the area set by
subscriber and coverage requirements.
However, it is almost certain that capacity
constraints will require upgrades, additional
base stations or even new radio access
technologies to be deployed in order to
ull trac demands and make sure that
subscribers enjoy a consistent mobile
broadband experience. Particularly in
Dense Urban areas, it is common or
capacity constraints to appear within a
year or two assuming that a new network
is deployed today. For mobile operators
that oer mobile broadband services, this
means a constant cycle o upgrades and
assessing whether the time is right to start
the migration to LTE or upgrade congested
cell sites with as much capacity as possible
beore upgrading to LTE.
Results
Network simulations illustrate that there is
signicantly more capacity than currently
required in the UK network. Coveragerequirements are currently driving network
deployments and simulations show that
network-wide capacity restrictions will be
not be reached throughout the orecast
period, even though a relatively high
average consumption per active device has
been used.
Although coverage requirements are driving
deployment in order to cover as many
potential subscribers as possible with 3G/
HSPA technologies capacity bottlenecks
are expected to orm during the latter years
o the orecast period. Inorma expects these
trac bottlenecks to seriously degrade the
user experience or this mobile network in
certain areas. When this point is reached,
the mobile operator will be presented with
the choice o either upgrading the existing
radio networks with additional capacity (or
example, new HSPA carrier introduction,
upgrade to HSPA+ or existing HSPA sites,
MIMO or HSPA+) or commencing the
migration to LTE in order to enjoy longer-
term cost savings.
The close-knit distribution o base stations in
Dense Urban areas satises current capacity
requirements even though these areas are
data-hungry and requently perceived as
congested. The Dense Urban and Suburban
areas are expected to experience congestion
during 013 and the Rural areas during 01,
ater which upgrades will be necessary.
However, as Rural areas are usually covered
Source: Inorma Telecoms & Media
0
5000
10000
15000
20000
25000
30000
2010 2011 2012 2013 2014 2015
Rural Suburban Urban Dense Urban
Totalins
talledb
asestations(000s)
Fig 5
UK mobile broadband operator orecast, total installed base stations, 010-015
Source: Inorma Telecoms & Media
0
100
200
300
400
500
600
2011 2012 2013 2014 2015
Rural Suburban Urban Dense Urban
NetworkTCO(US$millions)
Fig 6
UK mobile broadband operator orecast, annual network TCO, by geotype, 011-015
7/28/2019 MobileBB_NetworkCost
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by deployments that are very sparse (typical
cell radius may be as high as 10km), capacity
constraints are expected when coverage
is the most dominant deployment actor.
Moreover, simple capacity upgrades, such
as upgrading HSPA sites to 64QAM, or even
deploying a ew hundred sites will solve the
capacity constraint in Rural areas; in contrast,
capacity constraints in the Urban areas will
require more intensive expenditure but
these are not expected to happen during the
orecast period.
The number o required base stations
that are primarily driven by coverage
requirements are expected to rise rom
13,846 at the end o 010 to 9,703 by the
end o 015 (see g. 5).
From this, the annual total cost o ownership
(TCO) or the mobile network was calculated
(see g. 6), which also included:
Depreciated capex or continuous
build-out to increase coverage in all
geographical areas. Capex is dominated
by base-station costs, site construction,
engineering & support, core network
equipment and spare parts.
Opex includes backhaul, site leases,
utilities, maintenance and various other
costs that recur on a monthly basis.
The TCO is primarily driven by base-station
build-out in the Dense Urban and Suburban
areas that are expected to meet capacity
constraints during 013.
These orecasts enable the cost o supplying
a GB over the next ve years to be calculated
(see g. 7).
Inorma viewpoint
Given that signicant capacity constraints
will not appear in the mobile network until
ater 01 and only in areas which are prone
to congestion (Dense Urban and Rural
locations), deploying LTE is not economically
viable when existing sites can be eectively
upgraded to cater or capacity demands. In
Dense Urban areas, mobile operators have a
variety o cost-eective options to upgrade
their existing network:
Adding new HSPA carriers in congested
areas.
Introducing MIMO, Dual Cell HSPA+ and
6-sector sites are also advanced techniques
that may prolong the lie o existing HSPA
networks.
Cost per gigabyte (cost/GB) in the UKis orecast to be US$6.79 during 011,
gradually declining to US$.74 during
015. In the early years o the orecast,
cost/GB may not be a relevant metric since
deployment is coverage-driven and there is
unused capacity in the network. However,
as the usage o the network increases,
cost/GB drops sharply and aligns with the
cost/GB gures usually cited by network
vendors. In any case, existing mobile
broadband networks are cost-eective
even in demanding trac scenarios and
are expected to remain so throughout the
orecast period. However, it is possible that
drastic changes in mobile user behaviour
may trigger even urther trac generation,
which will congest networks quicker, orcing
operators to upgrade to LTE aster.
Inorma does not expect LTE to be
deployed in the UK market beore 015
due to the existing dense deployment o
HSPA networks, which can cater or the
current and near-term uture mobile trac
demands. However, there may be alternative
reasons to deploy LTE these include being
rst in the market with a 4G technology or
where there is a mobile broadband network
that has not been constantly upgraded to
meet trac demands.
This is an extract from our analysis into
deploying LTE in the UK. The full research and
analysis is available to clients through the
Networks channel of the Intelligence Centre.
Source: Inorma Telecoms & Media
0
1
2
3
4
5
6
7
8
20152014201320122011
6.79
4.61
3.66
3.092.74
C
ost/GB
(US$)
Fig 7
UK mobile broadband operator orecast, cost/GB, 011-015
07www.inormatm.com
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Project scope and methodology
In order to calculate the Total Cost o
Ownership(TCO)ofamobilenetwork,
several aspects have to be included in
network planning in order to capture
critical elements o the mobile network
that aect cost. Thereore, an end-to-
end mobile network has been designed,
includingRAN,backhaulandcore(seeg.
1).Severalparametersforeachstageof
the mobile network have been included in
order to address current operator demands,including3.9Gradioaccessnetworks,
ofoad, MIMO and emtocells, as well as
popular backhaul technologies to address
capacity bottlenecks while reducing costs.
Contrary to traditional orecasts and data,
the CPG methodology does not calculate
data or a region or country but only or an
operator. Since network deployment plans,
network costs and trac characteristics
dier signicantly per operator, it is not
easible to introduce a generic network
deployment plan or a whole country.
However, the coverage target or most
mobile broadband operators is nearly 100%
o the country population in the long term
but only a raction o the trac throughout
the national inrastructure will take place
through a single operator.
In order to avoid inconsistency by
generalizing network design and
dimensioning, only single operators are
modelled. Moreover, all assumptions are
clearly stated, especially those that are critical
to the overall cost o the network. Theseparameters include over-provisioning actors
(or RAN, backhaul and core), RAN capacity
specications, busy-hour dimensioning and
upgrade options.
Contrary to TCO, the cost/GB metric is only
relevant in certain cases and phases o the
mobile broadband network. In the early
phases o deployment, when coverage is
the driver or deployment (in rst years o
mobile broadband, there is usually a lag
between the mobile network deployment
and an average network utilization), costs
are high due to deployment and trac is
low, the cost/GB metric is ar higher than an
average value and can reach US$00/GB.
However, this value is not indicative and not
relevant until the mobile network is being
well-used. Network TCO is a better indication
o costs during these early phases but cost/
GB can still illustrate the dierence when
choosing to implement an enhancement in
the mobile network (ofoad or optimization).
In the advanced stages o deployment, when
the mobile network is well-used, cost/GB
can illustrate the dierence in cost betweendierent network upgrade options and
provide visibility or critical decisions; or
example, whether to deploy LTE early or to
upgrade the current network to HSPA+ and
roll out LTE when network reaches saturation?
Several parameters have been introduced
into the model, primarily grouped in our
distinct categories:
Population inormation: Including
addressable population, distribution
between our geotypes (Dense Urban,
Urban, Suburban and Rural), operator
subscriber base and subscriber targets.
Source: Inorma Telecoms & Media
Radio Backhaul Core Internet
RAN: various technologies
Macro, miciro, pico and
femto
New carrier introduction Spectrum
Wi-Fi ooad
Antennas (MIMO)
Network Sharing
Site costs
Leasing, ber, copper,
hybrid
Deploying: ber, RF
(PTP & PTMP) Carrier Ethernet costs
Statistical multiplexing
EPC, SAE costs
Capacity upgrades
Optimization
Policy and priority-basedmanagement
Fig 1
Mobile network design
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These parameters in part dictate network
deployment according to coverage
requirements, which may also be driven
by strict regulations tied to the associated
spectrum acquisition.
Country inormation: Including total area
segmented by the our geotypes and
coverage requirements.
Trac demand: Base data that is driven bytrac orecasts, which include real trac
collected rom live networks coupled
with Inormas expert orecasts. More
inormation on Inormas trac orecast
methodology is available upon request
Network deployment: Several parameters
are provided to the network deployment
algorithm, which calculates the number o
base stations, needed to satisy capacity
and coverage demands. Base station
numbers ultimately drive backhaul and
core but over-provisioning (capacity or
backhaul and capacity/signalling or core)
are also implemented.
Inorma has created a high-level overview othe our distinct groups o parameters that
are used to calculate network TCO and cost/
GB (see g. ).
Source: Inorma Telecoms & Media
Total population
Distrubution
(per geotype) Operator
subscriber base
and targets
Total area (per
geotype)
Coveragerequirements
Capacity
requirements
Per technology Per geotype
Per device type
Per subscriber
Indoor/outdoor
Spectrum
Technology
Backhaul Core network
Ofoad
Optimization
Population
inormation
Country
inormation
Trafc
demand
Network
deployment
Network TCO
Cost/GB
Fig 2
Cost/GB calculation inputs
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The Analysts
Dimitris Mavrakis
Senior Analyst
Inorma Telecoms &
Media
Dimitris Mavrakis is a
Senior Analyst with Inorma Telecoms &
Media. He is part o the Networks team
where he covers a range o topics including
Next Generation Networks, IMS, LTE, WiMAX,
OFDM, core networks, network APIs andidentiying emerging strategies or the
mobile business. Dimitris is also actively
involved in Inormas consulting business and
has led several projects on behal o Tier-1
operators and key vendors.
Dimitris has over 6 years experience in
the telecommunications market. He has
a strong background in mobile and xed
networks and an in depth understanding o
market dynamics in the telecoms business.
In the past, Dimitris has worked as a project
leader to perorm challenging network
measurements and has lead a team o
researchers to produce pioneering research
and acclaimed publications.
Dimitris holds a PhD in Mobile
Communications and a MSc in Satellite
Communications rom the University o
Surrey.
Gareth Sims
Head of Forecasting
Inorma Telecoms &
Media
Gareth is Head o
Forecasting within Inorma Telecoms &
Medias Industry Research division, leading
its centralised orecasting team. In his role
Gareth is responsible or the management
and development o Inorma Telecoms &Medias orecasts covering the mobile, xed
and media industries. Over the last eight
years he has spearheaded the development
o numerous orecasting products, spanning
a range o sectors rom devices and networks
through to applications and services. He
also manages the orecasts within WCIS, an
industry leading market intelligence database
whose numbers are quoted extensively
throughout the ICT Industry.
His most recent work involved building a
mobile network planning tool to help identiy
the most cost eective ways that operators
can deploy uture networks.
Gareth has over ten years experience in
statistical and nancial modelling in the
ICT industry. Beore joining Inorma, Gareth
worked as a commercial analyst or MCI
where he ocused on European telecom
pricing.
Gareth holds a degree in Business Economics
in which he specialised in Econometrics.
Kris Szaniawski
Principal Analyst
Inorma Telecoms &
Media
Kris is a Principal Analyst
with Inorma Telecoms & Media. He heads
up the research programmes and analyst
team tracking the mobile networks and
inrastructure topic area. Kriss areas o
expertise include network vendor strategyand managed services although he tracks
and comments on a broad range o
topics in the mobile space ranging rom
mobile broadband to support systems. His
recent research interests include network
outsourcing and sharing and mobile rural
connectivity in developing markets.
Kris has 17 years experience in the telecoms
sector as a journalist and analyst, including
the last seven years with Inorma Telecoms &
Media and roles beore that with Ovum and
the Financial Times group. He has worked
on a wide range o business intelligence
services, reports and consulting projects
and contributed to numerous industry
publications and events.
Kris holds a Masters degree in European
politics, business and law and a combined
honours degree in English and social sciences.
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Customized insight, analysis and advicemodelled on the basis o your inputs
Given the nature o this project, the
deliverables are heavily customised to
meet the needs o our clients. During the
process we will work closely with you
and key stakeholders to look at trac
demand scenarios, network deployment
scenarios and costs, and then we take
your specifc inputs such as:
devicetype geotype
technology
ooad(femtocell,Wi-Fi)
optimisation
backhaul
corenetworktype.
Once the model has been built using your
criteria and inormation, our analysts will
present our ndings through a dedicated
and interactive strategy session to discuss theresults with you or work with you to explore
the dierent outcomes and provide advice.
Plus, all clients will receive an exclusive copy
o our Mobile Broadband Network Costs
report, which includes analysis o sample
scenarios.
Why participate?
Operators:
Createyourownnetworkprolespecic
to your customer demands
Usebuilt-inscenariostohelpmodelyour
network
Proleyourcompetitorsnetwork
EvaluateNetPresentValue(NPV)of
network deployment options
Modeltracbydevicetypeandgeotype
Comparevendorclaimswithan
independent and validated tool.
Vendors:
Proleyourcustomersnetworksto
understand their uture requirements
compared to your own
UseCost/GBtoillustratetheeectofyour
solution in a real-lie network and how it
can reduce costs or the operator
UseCost/GBaspointofcomparisonandto
validate existing methodologies you may
be using or network analysis.
Investor community and nancial
institutions:
Assessinvestmentdecisionsbeingmade
by operators and the choices available to
them
Evaluatevendormessagesandoerings
and the impact it will have on costs
Tosupportstrategicadvice.
Why partner with Inorma Telecoms &
Media?
WehaveextensiveNetworktechnology
expertise provided by a dedicated team
tracking, analysing and consulting on
the inrastructure market, LTE and other
mobile access technologies, backhaul,
emtocells and policy management
Ourresearchbenetsfromunparalleled
access to key industry gures via our
conerence communities, including
the industrys leading annual event,
Broadband Trac Management Congress.
Ourstrategicinsightissupportedbya
comprehensive range o primary data
sources including WCIS and WBIS
Ourclosepartnershipwithakeysetof
collaborators to allow us to compare
notes on methodologies and modelling
approaches and to validate our inputs
Wehaveaprovenintegratedapproach
to orecasting. Uncertain and dynamic
environments such as the mobile
broadband market require a collaborative
orecasting methodology. We use this
approach to integrate both industry and
modelling expertise, to share ownership,
create a holistic view o the market
and ultimately ensure high levels o
consistency and robustness
Ourscenario-basedtracforecasting
model is one o the oundations o this
project. We have built on three-years-
worth o trac orecasting experience.
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www.inormatm.com