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1 
Finnish Licensed Shared Access 
(LSA) trials 
COST TERRA meeting, Vilnius, 29.4.2014 
Marja Matinmikko on behalf of Fin...
2 
Introduction 
 Mobile traffic is growing at rapid pace leading to increasing 
spectrum demand. 
 New spectrum sharing c...
3 
LSA Concept 
 LSA concept aims at allowing new licensed users on spectrum 
bands that already encompass incumbent spect...
4 
Previous work on LSA 
Regulation: 
• EC has given the definition for the LSA concept in Nov. 2013. 
• CEPT has develope...
5 
9 
Finnish Trial Program (2011-2014) 
 Trial Environment for Cognitive Radio and Networks programme 
(2011-2014) of Tek...
6 
Finnish LSA trial using live LTE network 
30/04/2014 11 
Performance evaluation - setup 
 Evacuation time from the incu...
7 
Performance evaluation - results 
 Evacuation time was on the avarage 26 s. 
 Total handover execuation took on the ava...
8 
Conclusions 
 LSA concept allows MNOs to access new shared bands with 
guaranteed QoS while protecting the rights of in...
9 
TECHNOLOGY FOR BUSINESS 
Contact: Marja.Matinmikko@vtt.fi
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Finnish Licensed Shared Access (LSA) trials

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Finnish Trial Program (2011-2014)

Trial Environment for Cognitive Radio and Networks p
rogramme
(2011-2014) of Tekes – the Finnish Funding Agency for I
nnovation -
offers international partners the opportunity to coope
rate 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 sha
ring
concepts, such as the LSA, in close collaboration b
etween industry
and research projects and regulation.

Finnish Communications Regulatory Authority (FICORA
) rewarded
Trial program for promoting electronic communicatio
ns in 2013.

COST TERRA meeting, Vilnius, 29.4.2014 Marja Matinmikko

Published in: Technology
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Finnish Licensed Shared Access (LSA) trials

  1. 1. 1 Finnish Licensed Shared Access (LSA) trials COST TERRA meeting, Vilnius, 29.4.2014 Marja Matinmikko on behalf of Finnish Trial project consortia CORE+ and WISE2 Outline Introduction LSA concept Finnish LSA field trial Performance evaluation Conclusions 30/04/2014 2
  2. 2. 2 Introduction Mobile traffic is growing at rapid pace leading to increasing spectrum demand. New spectrum sharing concepts are being developed for MNOs to access new spectrum bands on a shared basis due to lack of unallocated bands and costly and time-consuming refarming process. Europe: new Licensed Shared Access (LSA) concept is under heavy study. Trials are needed to showcase the functioning of the new spectrum sharing concepts with practical systems in realistic situations. 30/04/2014 3 4 Licensed Shared Access (LSA) concept
  3. 3. 3 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 (QoS) for both the entrants and the incumbents. The LSA concept could offer a cost-efficient solution for MNOs to access IMT bands currently used by other type of incumbents a shared basis while protecting the rights of incumbents and offering operational certainty also for the MNO. 30/04/2014 5 LSA concept 30/04/2014 6
  4. 4. 4 Previous work on LSA Regulation: • EC has given the definition for the LSA concept in Nov. 2013. • CEPT has developed the LSA framework and a draft decision for the use of LSA for mobile in the 2.3-2.4 GHz band in 2014. Standardization: • ETSI has developed a system reference document for LSA in the 2.3-2.4 GHz band in July 2013. • ETSI currently derives system requirements and develops system architecture. Research: • Research on the concept has started to appear in scientific forums. • First public live trial of sharing using TD-LTE in the 2.3-2.4 GHz band was shown in Finland in 2013. 30/04/2014 7 8 Finnish LSA field trial
  5. 5. 5 9 Finnish Trial Program (2011-2014) 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. Finnish Communications Regulatory Authority (FICORA) rewarded Trial program for promoting electronic communications in 2013. 10 Finnish LSA trial group: CORE+ and WISE2 project consortia Three public LSA trials: WWRF in Oulu 04/2013, LSA Trial Workshop in Helsinki 09/2013 and IEEE DySPAN in US 04/2014
  6. 6. 6 Finnish LSA trial using live LTE network 30/04/2014 11 Performance evaluation - setup Evacuation time from the incumbent’s evacuation request to the time the LTE base station is offline was measured Starts when the LSA repository delivers an evacuation request to the LSA controller. LSA controller sends evacuation commands: to network management system to switch off the base station, and to the end users for forced handovers. Ends when no base station signal is observed over the air anymore. QoS of end users was also measured. 30/04/2014 12
  7. 7. 7 Performance evaluation - results Evacuation time was on the avarage 26 s. Total handover execuation took on the avarage 20 s. User connection break during evacuation was on the avarage only 100 ms. Results indicate that: LSA band can be evacuated in a timely manner Evacuation process is almost invisible for end users who continue to be served with other network resources 30/04/2014 13 Other LSA activity Technical Live trials and their performance measurements Cellular architecture evolution for LSA LSA architecture consideration from incumbent perspective Business LSA work flow and tasks of key stakeholders Business models for MNOs Business scenarios for incumbent spectrum users Business benefits for key stakeholders Regulation Contributions to preparation of ECC Report 205 30/04/2014 14
  8. 8. 8 Conclusions LSA concept allows MNOs to access new shared bands with guaranteed QoS while protecting the rights of incumbents. Finnish consortium has presented live field trials of the LSA concept where a TD-LTE network shares the spectrum in 2.3- 2.4 GHz band with cordless camerass (PMSE service). Dynamic availability of the LSA band can be handled with existing network equipment and a minimum number of additional components, LSA Repository and LSA Controller. Finnish research activity has looked at the LSA concept from technical, business and regulatory sides. Future work will continue to cover more realistic settings. See you (and our latest LSA trial) at CrownCom 2014 in Oulu! 30/04/2014 15 References RSPG Opinion on Licensed Shared Access, RSPG13-538, European Commission, Radio Spectrum Policy Group, November 2013. 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. Draft ECC Decision. Harmonised technical and regulatory conditions for the use of the band 2300 - 2400 MHz for MFCN. 2014 M. Matinmikko, M. Palola, H. Saarnisaari, M. Heikkila, J. Prokkola, T. Kippola, T. Hänninen, M. Jokinen, S. Yrjölä, “Cognitive Radio Trial Environment: First Live Authorized Shared Access-Based Spectrum- Sharing Demonstration, ” IEEE Vehicular Technology Magazine, vol. 8, no. 3, Sept. 2013, pp. 30-37. 30/04/2014 16
  9. 9. 9 TECHNOLOGY FOR BUSINESS Contact: Marja.Matinmikko@vtt.fi

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