CORE+: TRIAL heritage,

lessons learned and trial

environments future plans

Tekes Trial meeting, 7.5.2014

Marja Matinmikko

VTT Technical Research Centre of Finland

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Outline

Key achievements

Lessons learnt

Trial environment future plans

Key achievements

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Public live LSA Trials & publications

WWRF Oulu April 2013

LSA Trial workshop Helsinki

September 2013

IEEE DySPAN McLean,

USA, April 2014

2-3 more to come in 2014

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World’s first live ASA trial

LSA Trial 1 in Oulu

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LSA Trial 2 in Helsinki

LSA Incumbent Manager &

LSA Repository

End users

- Gold 1 & 2

- Bronze user

Base station status

LSA Repository status

LSA Controller

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LSA Trial 3 in DySPAN 2014 (McLean, VA)

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Regulation, standardization, business

Contributions to CEPT on LSA concept (ECC Report 205) and

ITU-R on cognitive radio systems in the land mobile service with

chairmanship.

Business studies on LSA work flow and tasks of key

stakeholders, business models for MNOs, scenarios for

incumbents and benefits for key stakeholders.

Technical research on LTE SON and LSA architecture.

Finland (Finnish Trial program) as the single most contributing

country at COST Action IC0905 TERRA 2010-2014.

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Lessons learnt

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Lesson 1: The Power of Collaboration

Trial program introduced a new way of doing research in a

collaborative way

Required a big change in attitude which was not always easy

Project internal between organizations (research, industry, regulation)

Between Trial program projects

Collaboration turned out to be the key for achieving big results

Concrete example: Joint LSA trials

Collaboration should continue to share information and avoid

overlapping and duplication of work

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Lesson 2: Holistic view covering interrelations

of technology, research and regulation

Regulation (CEPT, ITU-R)

Standardization (ETSI,

3GPP)

Business aspects

Technical research

Trials

All interrelated and on the

same topic.

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Lesson 3: Agile/Lean/Iterative methods for trial

development

Consecutive public LSA trial demonstrations with new features

(several per year)

Force you to work efficiently by selecting and developing the most

important features first, integrate and test continuously with others

Opportunity to collect feedback from stakeholders

Essential in the development of new concepts whose features are

unknown in the beginning of the project

Opportunity to take into account technical/business/regulation

developments in the trials

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Lesson 4: Publicity

LSA concept brought to the attention of the whole world

Public trials in Europe, US and Asia (?) to promote the LSA

concept and Finland’s cutting edge position in spectrum sharing

Presentations to all involved stakeholders in different forums

with clear and simple messages to collect feedback

Regulation (regulatory forum workshops), research (academic

conferences), and industry

Active publication work coupled with trials to get publicity

Trials and papers in same events

Trial environment future

plans

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Other related activities – European LSA

development

LSA concept development in Europe continues in ETSI and

CEPT

Only 2.3-2.4 GHz band considered so far

European Commission

Current mandate on geolocation database

Upcoming mandate on the 2.3-2.4 GHz band for wireless

broadband with LSA (if needed) in 2015

On-going work on RSPG report “Efficient awards and use of

spectrum bands harmonised for Electronic Communications

Services” (best practices on spectrum award approaches and related

conditions, including spectrum sharing and/or pooling with a view to

achieve higher transmission speeds and capacity in 2015)

Identification of beneficial sharing opportunities (BSOs)

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ETSI timeline for LSA

TS 103 235: System

architecture for LSA,

target Nov 2014

TS 103 154: System

requirements for LSA in 2300-

2400 MHz, target Aug 2014

Interface

definitions

expected to

start in 2015

2013 2014 2015

TR 103 113: SRdoc Mobile

broadband services in the

2300 – 2400 MHz band

under LSA

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Other related activities

US spectrum sharing developments

Three-tier hierarchy model under study in 3.55-3.65 GHz band

ITU-R work on spectrum sharing

ITU-R WP5A will finalize its work on CRS in 2014 giving the

general guidelines for spectrum sharing

ITU-R WP1B work on “dynamic access” is on-going and could

expand in the future

Current sharing models (LSA and US model) are only for the

first band – and not yet implemented even there

There is a need to continue the spectrum sharing studies and trials

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Future trial topics

New interfaces in LSA

Larger LSA LTE network

Different types of incumbents

Visualisation

Small cells and clusters of small cells

LSA with Active Antenna Systems (AAS)

Load balancing and traffic steering

Interference studies

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Conclusions

Power of collaboration

Trial program introduced a new way of doing research in a collaborative

way => This has led to results with big impact.

Holistic view covering interrelations of technology, research and

regulation

Looking at the concept from different angles improves the quality.

Agile/Lean/Iterative methods for trial development

Consecutive public trials increase the quality by getting feedback.

Publicity

Spectrum sharing still requires further research and trials

Current models (LSA and (US model) are being studied for single band

and not yet implemented even there.

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