Optimised Capacity Management for HSPAomnitele-com.s3.frantic.com/2011/06/Omnitele...©Omnitele Ltd. 2010 3 Managing capacity crunch HSPA capacity expansions •Increasing investments

© Omnitele Ltd. 2010 1

Optimised Capacity Management for HSPA IQPC Mobile Network Optimisation Summit, Dubai May 23 2011

Rauno Huoviala


Omnitele Drives Results in Network Business

• We help operators to evaluate, select and manage licenses, technologies and vendors.

• Operators can rely on our extensive experience, unbiased view and coherent process to help them in choosing the optimal solutions

Technology Strategy

• Our turnkey network planning services cover all major mobile and broadcasting technologies

• We have experience from all major vendors and technologies

• The outstanding quality and accuracy of our methodology result in maximised utilisation of scarce and expensive frequency assets

Network Design

• Our selection of network quality improvement services cover network auditing, optimisation and performance management

• Our long international experience from numerous operators and various technologies adds value to standard engineering services.

Network Quality

Omnitele supports operators in designing, developing and managing their

network business optimally.


Managing capacity crunch

HSPA capacity expansions

• Increasing investments today

New spectrum and networks

• Long tem solutions

Traffic management and off-loading

• Very usable to some extent

Radio optimisation

• Operational solution

HSPA capacity exapansions most cost consuming today


Intelligent Capacity Management (ICM)

Find the upgrades with biggest benefit

for least money and implement them first!

Budget

ICM performance

gain

ICM budget savings

ICM analyses the cell

specific radio

conditions and

terminal distribution

and optimises the

capacity configurations

Traditional cell based

capacity planning

implements upgrades

only in order of cell

congestion


Detailed capacity planning brings

effectiveness but also complexity

Detail level of capacity planning

Omnitele aims to grasp the maximum effectiveness

and minimise the effect of the complexity


How is HSPA cell capacity upgraded?

• More radio units

• More carriers

• More HSDPA codes

• Higher order modulation

• Spectrum aggregation

RU 1 RU 2 RU 3

RU 1

C1 C2 C3

Variety increasing, solutions with different effect on user QoS


Challenges of capacity management today - Determining the feasibility of new capacity

• What’s the cell performance?

… Actual user perceived QoS unclear

• How much gain from upgrades?

… Real impact of an enhancement on user QoS unclear

• Are the upgrades worth it?

… Cost effectiveness of enhancements is unknown

All three questions need to be answered


Capacity gain variations - Case study

• Six-fold difference in the provided gain with same solutions

Same solution can be beneficial in some place, useless in other


Cost effectiveness - Case study


Cost effectiveness differs greatly - Case study

• Ten fold difference in cost effectiveness

1.5 kbps

/sub/€

15 kbps

/sub/€

1.6 kbps

/sub/€

5 kbps

/sub/€

Wise selection of capacity implementations bring cost effectiveness


Detail cell capacity analysis - SINR relations determine the performance

• SINR distribution of a cell is as uniqe as a fingerprint

– Depends on geography, site configuration, neighboring cells, and traffic level

• Mapping SINR distribution to technology bearers tells the capacity of a cell

• Traffic load and terminal distribution per cell determines the user data rate of

different configurations


ICM modeling process

Setup target Quality or target Budget

• Target Mbps per user

• Yearly capacity budget

Analyse cell specific gains from different

features

• Reference measurements

• Statistics analysis

Analyse most cost effective capacity plan to meet the

targets

• Cost vs. gain comparison

• Cell vs. cell prioritization

ICM output is a concrete and detail capacity implementation plan


ICM modeling results - Case study: Budget optimisation

• Target: Max overall user data performance

• Capacity budget: Average 4k€/cell

~70% more gain with ICM • Radio optimisation?

• New site? • Radio optimisation?

• New site?


ICM modeling results - Case study: Target QoS improvement

• Target: Minimise cost for the target QoS

• QoS target: Average 1Mbps per user through the network

(baseline is 765kbps)

50% less cost with ICM


ICM modeling results - Case study: Unified network QoS

• Target: Offer minimum 1Mbps user data rate in every cell

• Implement the unfied QoS most cost effectively

Trade off from unified QoS

is ~10% in overall gain

Without ICM the unified target QoS cannot be achieved


Benefits of ICM

• Cost effectiveness

– Maximise mobile data performance with the capacity budget

– Adjust original capacity budget if seen over or under estimated

– Avoid meaningless capacity implementations

– Minimise excessive HW installations and site visits

• Understand the current network’s performance

– Problematic areas with today’s and future traffic

– Identify areas where capacity SW/HW is not the root cause of poor capacity

• Identify most critical capacity cost elements

– Advantage in capacity procurement and vendor negotation

– Verify vendor’s blanket capacity offer feasibility

ICM CapEx savings for the whole network

can be measured in millions of dollars


Summary

• Mobile broadband surge will require increasing and more

complex HSPA capacity investments

• Various solutions available for capacity – all with different gains

and cost structure

• The gain of the methods on user performance can differ greatly

between cells

• By optimal cell based capacity implementation great savings

can be achieved in reaching your targets

• ICM is an Omnitele model that enables efficient way to optimise

short and long term capacity management

– Capacity cost savings

– Radio plan problem identification

– Vendor management


For more information visit

www.omnitele.fi

Documents

Optimised Capacity Management for HSPAomnitele-com.s3.frantic.com/2011/06/Omnitele...©Omnitele Ltd. 2010 3 Managing capacity crunch HSPA capacity expansions •Increasing investments