Licensed Shared Access (LSA) trial

demonstration using real LTE network

M. Palola, T. Rautio, M. Matinmikko, J. Prokkola, M.

Mustonen, M. Heikkilä, T. Kippola, S. Yrjölä, V.

Hartikainen, L. Tudose, A. Kivinen, J. Paavola, J.

Okkonen, M. Mäkeläinen, T. Hänninen & H. Kokkinen

CrownCom 2014, June 2–4, 2014 Oulu, Finland

Marko.Palola@vtt.fi

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Outline

Introduction

LSA Concept

LSA Trial Demonstrator

LSA De-activation

Conclusions

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Introduction

Mobile traffic is growing at rapid pace leading to increasing

spectrum demand.

New frequency sharing concepts are being developed to access

new already licensed spectrum bands on a shared basis.

Europe: Licensed Shared Access (LSA) concept is under heavy

study in regulation and standardisation for MNOs in 2.3GHz.

This paper presents a live demonstration of the LSA concept

implemented using commercial mobile network elements (LTE

base stations, core network, management system).

4

Licensed Shared Access

(LSA) concept

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LSA Concept

LSA concept aims at allowing new licensed users on spectrum

bands that already encompass incumbent spectrum users with

spectrum sharing that provides a certain quality of service for

both the entrants and the incumbents.

Incumbent defines the part of the spectrum, license duration and

area that is available.

License sharing agreement is set between incumbent and LSA

Licensee. Spectrum regulator issues the license to LSA Licensee.

Incumbent can reclaim the spectrum back on demand for own

business -> “dynamic” behavior

LSA concept targets an interference free operation for both.

For MNOs, the LSA might be an opportunity to access 2.3GHz

band, which is not totally used by other type of incumbents.

6

LSA Trial Demonstrator

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LSA demonstrator with commercial LTE equipment

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Incumbent tools

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Some details of the trial

ECC report 172 details the size of exclusion zones for each

incumbent use scenario

Portable video, Mobile video, Cordless camera

TD-LTE is at 2370-2390KHz and FDD LTE at 2100KHz

During LSA de-activation/evacuation some TD-LTE base stations or

sectors are switched off air

Terminals (TD-FDD LTE supported) will switch to FDD LTE

automatically

10

LSA De-activation

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Demonstration

LSA De-activation

Define radio

stations

Frequency

reservation

Activate one

or more radio

plans

Deploy the radio

plans

Calculate

protection

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LSA Controller

User Interface

View LSA network status &

control features

Incumbent protection

features

Site-based

Sector-based

Graceful shutdown

Fast/Emergency

evacuation

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LSA Controller

Visualisation

View network status &

incumbents activity

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Conclusions

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Conclusions

Live trial of the LSA concept where a TD-LTE live network shares the

spectrum in 2.3-2.4 GHz band with incumbent PMSE service.

Dynamic availability of the LSA band can be handled with existing

network equipment, mainly network management system, and a

minimum number of additional components, LSA Repository and LSA

Controller.

Future work will include small cells, more dynamic traffic steering/load

balansing, and interference measurements.

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References

ETSI. Mobile broadband services in the 2 300 MHz – 2 400 MHz

frequency band under Licensed Shared Access regime. ETSI ERM

System reference document. TR 103 113, V. 1.1.1. July 2013.

ECC Report 205. Licensed Shared Access. 2014.

ECC Report 172. Broadband Wireless Systems Usage in 2300-2400

MHz. March 2012

M. Palola, et.al , ”Live field trial of Licensed Shared Access (LSA)

concept using LTE network in 2.3 GHz band”, in the 7th IEEE

Symposium on New Frontiers in Dynamic Spectrum Access Networks

(DySPAN), McLean, Virginia, USA, Apr. 1st-4th, 2014.

CORE+ project - web site: http://core.willab.fi

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Finnish Trial Program

Trial Environment for Cognitive Radio and Networks programme

(2011-2014) of Tekes – the Finnish Funding Agency for Innovation

offers international partners the opportunity to cooperate with the key

players in Finland:

51 projects, 10 companies and 7 research institutes with a total volume

of 35 M€.

Trial programme has developed trial environments and related

cognitive technology and showcased new spectrum sharing

concepts, such as the LSA, in close collaboration between industry

and research projects and regulation.

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