TVWS: Geo-location Spectrum Databases – SA Context

–A CSIR 5G Play AreaDr. Luzango Mfupe: Principal Researcher, CSIR

Adjunct Prof., Nelson Mandela African Institution of Science and TechnologyVice Chair IEEE DySPAN-SC 1900.6

Ref.JulyIssue:“TelevisionWhitespaces”,Pages:24-30A.Lysko,F.Nelwamondo,L.Mfupe

WattnowMagazineTechTalk,20August2020

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Contents Outline

1. Timeline of the TVWS Framework Development2. Supporting Policy, Regulations, Recommendations & Standards3. Regulations on the Use of TVWS, 20184. Geo-location Spectrum Databases5. Development of the ICASA TVWS Technical Model6. Reference Geo-location Spectrum Database (R-GLSD)7. Secondary Geo-location Spectrum Database (S-GLSD)8. WSD Type Approval9. Qualification Framework for S-GLSD Providers10. Ongoing TVWS Deployments – Post 201811. Recap: The South African TVWS Ecosystem12. South African TVWS Value Chain13. Global Footprint of the CSIR’s GLSD Technology14. Available Opportunities

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Timeline of the TVWS Framework Development

11/12 2013 2014 2015 2016 2017 2018 2019 2020 2021

FirstTVWSTechnologyTrialinWesternCape(CSIR,Google&others)

CSIRDevelopsaPrototypeGLSDtobeusedforTVWSResearchandTechnologyTrials

SecondTVWSTechnologyTrialinLimpopo(CSIR,Microsoft&others)

ICASAPublishesDiscussionPaper

CSIR’sGLSDQualifiedbyOFCOMtoProvideTVWSServicesintheUK

PositionPaperOnDynamicAndOpportunisticSpectrumManagement

1. TVWSRegulationspublished

2. ICASAissuesaTendertoDevelop,hostandmanageICASAReferenceGLSD(R-GLSD)

1. ICASAR-GLSDCommissioned

2. FirstcompliantS-GLSDDevelopedandHostedbyCSIR

3. Pre-commercialTVWSTrialsCommences

4. ICASAPublishesDraftFrameworkforQualificationofS-GLSDProviders

1. ICASAPublishesFinalFrameworktoQualifyS-GLSDproviders

2. ICASAissuesCOVID-19TVWSlicensestothree(3)networkoperators

3. Pre-commercialTVWSTrialsContinues

1:Pre-commercialTVWSTrialsCommences

2:CommercialTVWSDeployments01/04/2021

10YearsintheMaking!

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SupportingPolicy,Regulations,Recomms &Standards

KeyInputstotheRegulationsontheUseofTVWS,2018:• NationalBroadbandPolicy(SACONNECT),2013• RadioFrequencySpectrumRegulations(RFSR)of2011,asAmended• NationalRadioFrequencyPlan(NRFP)of2018• TerrestrialBroadcastFrequencyPlan(TBFP)of2013• TypeApprovalRegulationsof2013• AstronomyGeographicAdvantage(AGA)ActNo.21of2017• ITU-RRA.769-2• SARAS,2011• ITU-RP.1812• ITU-RP.452• ITU-RP.1411• ITU-RP.1546• ITUGEO6• ETSIEN301598• IETFPAWSRFC7545

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RegulationsontheuseofTVWS,2018(1/2)

TVWSFrequencyRange:470MHzto694MHzExcludingtheRadioAstronomysub-band (606-614MHz),

a.k.aChannel38

Highlights:Reg3:CharacteristicsofWSDsReg4:WSDAuthorisation(i.e.,TypeApproval)Reg5:AvoidanceofHarmfulInterferenceReg8:LocationSpecificEIRPS(i.e.,Urban/RuralClassifications)Reg10:S-GLSDAccessReg16:ResponsibilityofR-GLSD&S-GLSDOperators.subsec(2):QualificationofS-GLSDProviderssubsec(4):S-GLSDServiceFees

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Regulations on the use of TVWS, 2018 (2/2)

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Geo-location Spectrum Databases (GLSDs)

• A GLSD system uses complex technicalmodels to translate the governingspectrum sharing regulations andapplicable standards (Ruleset) in a geo-location of interest protecting theincumbents from harmful interferencewhile determining the availability of WhiteSpace (WS) and present it in a humanand machine readable list.

• Technical models to determine WSavailability varies from one country toanother/jurisdictions.

Mfupe, L., Mekuria, F., Mzyece, M, “Geo-location WhiteSpace Spectrum Database: Models and Design of South Africa’sFirst Dynamic Spectrum Access Coexistence Manager”, KSIITransaction on Internet and Information Systems, 2014

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Development of the ICASA TVWS Technical Model (1/3)

• ICASA entered into a research collaboration with CSIR to develop the TVWS technical model

• CSIR developed the prototype South Africa GLSD for TVWS use during technology trials and research purposes

• Relied on well researched, tested, international best practices, and standardised propagation prediction models

• Applied the model and cross-validated with measured coverage in TVWS trials in Western Cape and Limpopo in South Africa

• Correctness of results verified by ICASA and broadcasters

• The technical model was used to develop the R-GLSD and S-GLSD compliant to the TVWS Regulations of 2018

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Mfupe, L., Mekuria, F., Mzyece, M, “Multi-criteria Decision Analysis of SpectrumManagement Frameworks for Futuristic Wireless Networks: The Context ofDeveloping Countries”, Mobile Information Systems, 2017

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Development of the ICASA TVWS Technical Model (2/3)

9FCCTVWSModel Ofcom-UKTVWSModel

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Development of the ICASA TVWS Technical Model (3/3)

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Reference Geo-location Spectrum Database (R-GLSD) (1/3)

“R-GLSD performs baseline calculations for the countrywide TVWS availability maps and generates

Operational Parameters for WSDs, for setting regulatory limits”

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Reference Geo-location Spectrum Database (R-GLSD) (2/3)

OperatedbyICASA OperatedbyQualifiedS-GLSDProviders

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Reference Geo-location Spectrum Database (R-GLSD) (3/3)

https://tvwhitespaces.icasa.org.za

https://tvwhitespaces.icasa.org.za

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Secondary Geolocation Spectrum Database (S-GLSD) (1/3)

“A GLSD operated by certified GLSD operators designated by the Authority to provide GLSD services to end users”

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Secondary Geo-location Spectrum Database (S-GLSD) (2/3)

https://whitespaces.csir.co.za

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Secondary Geo-location Spectrum Database (S-GLSD) (3/3)

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WSD Type Approval

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Two-StageProcedure:1:EMCConformanceAssessment

- DonethroughanAccreditedTestLab(ATL)• EfficientuseofSpectrum- ETSIEN301598• EMC- ETSIEN301598• ElectricalSafety- IEC/EN60950or62368-1

2:S-GLSDConnectivityConformanceAssessment- DonethroughaCompliantS-GLSDProvider

• Ref.Reg 4:WSDAuthorisation• Ref.Reg 10:S-GLSDAccess• PAWSRFC7545Ruleset:ICASATVWS-2018

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S-GLSD Providers Qualification Framework

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• Ref. Reg 16 sub sec (2): Qualification of S-GLSD Providers– TheFrameworkisnowready,itwaspublishedbyICASAintheGov.gazetteonthe:05/06/2020

– AnticipatedcommencementofcommercialTVWSdeploymentsinthecountry:01/04/2021J

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Ongoing TVWS Deployments – Post 2018

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1: COVID-19 Authorisations: – ICASAhasissuedthree(3)TVWSnetworklicensesundertheCOVID-19

ICTnationaldisasterregulations(i.e.,Morai Solutions,Mthinte Communications,LevinGloba/AABA)

2: Pre-Commercial Trial Authorisations:– ICASAhasissuedatleastthree(3)TVWSnetworklicenses(i.e.,WAPA/USTDA,Morai Solutions,Africanopy)

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Recap: The South African TVWS Ecosystem

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South African TVWS Value Chain

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Global Footprint of the CSIR’s GLSD Technology (1/2)

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COUNTRY PATENT NUMBER

STATUS YEAR GRANTED

United Kingdom 2522927 Granted 2016

R.S.A. 2015/00687 Granted 2016

ARIPO AP3951 Granted 2017

Nigeria RP: F/P/2015/27 Granted 2016

OAPI 17255 Granted 2017

Mfupe, L., Mekuria, F, Montsi, L. “A Method and System: Back-Tracking ForwardLooking (BTFL) Dynamic Channel Allocation Mechanism for White Space RadioNetworks”, 2016.

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The CSIR’s GLSD technology is used in several other countries globally

Global Footprint of the CSIR’s GLSD Technology (2/2)

Certified to operate in UK since 2016

Cyprus Ghana

Tanzania Botswana

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Available Opportunities

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• Licensing of the CSIR GLSD technology• Remote API access to the CSIR GLSD Calculation Engine:

Ø InputtoyourTVWSnetworkplanningtoolØ PoweringyourownGLSDFront-End

• WSD Type Approvals• TVWS network planning and deployments• Supporting SMMEs and rural TVWS network operators• Co-creation of new applications, use cases and services• Co-creation of new innovative business models

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Key Stakeholders

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1. ICASA2. DSI3. DCTD4. TIA5. UN6. SMMEs 7. WAPA8. JSAC9. OEMs10. HEIs

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Thank You!

lmfupe@csir.co.zaQuestions, comments!