Global 6G: Candidate Frequency Analysis for Device-to-Satellite Direct Connect Systems and Outlook of Frequency Spectrum Research in Our Country

ABSTRACTThiswhitepaperprovidesananalysisofglobal progressandstrategictrendsinidentifyingcandidatespectrumbandsfor6GandDirect-to- FutureForumSpectrumWG FutureForumWhitePaperonAnalysisofGlobalProgresson6GandD2DCandidateFrequency Contents ExecutiveSummary.........................................................................................................41China5G-Adevelopment..............................................................................................52GlobalMobileDevelopmentTrends..............................................................................63SpectrumisthekeytomakesuremobilenetworktosupportAIapplications..............74BackgroundofFutureForumSpectrumWhitePaper...................................................75Globalstatusofstudyoncandidatebandsof6G.........................................................75.1Europe....................................................................................................................75.1.1RSPG..............................................................................................................75.1.2CEPT/ECClevelofwork:...............................................................................105.2U.S.......................................................................................................................125.2.1LegislativeandRegulatoryContext...............................................................125.2.2SpectrumSupplyPipelineObjectives............................................................135.2.3UpperCBand(3.98–4.2GHz):PrimaryNear- TermIMTCandidate.............135.2.4EmergingFederalMid- BandCandidatesBeyondCBand............................145.2.5InstitutionalRolesandResourcing................................................................145.2.6ImplicationsforIMTand6GPlanning............................................................145.3Japan...................................................................................................................155.3.1MICBeyond5GPropositionStrategy2.0......................................................15 6.1.2RSPGOpinionoftheEU-levelpolicyapproachtosatelliteDirect-to-DeviceconnectivityandrelatedSingleMarketissues.......................................................226.1.3ECMandatetostudyfeasibilityofanddevelopofleastrestrictiveharmonizedtechnicalconditionsfortheuseofEU-harmonizedfrequencybandsforterrestrialwirelesssystemsprovidingelectroniccommunicationservicebysatellitesystemprovidingdirecttodeviceIMTconnectivity............................................................236.1.4CEPTWorkonD2D-IMT...............................................................................246.1.5WRC-27AI1.13.............................................................................................256.1.6D2DMarketDevelopmentLandscape...........................................................256.1.7EvolutionofSpectrumUsageTrends............................................................266.1.8CurrentStatusofRegulatoryFrameworkDevelopmentfromadministrations266.1.9Developmenttrendsandchallenges.............................................................276.2U.S.......................................................................................................................286.2.1FCCSupplementalCoveragefromSpace(SCS)Framework.......................286.2.2AuthorizedFrequenciesandTechnicalParameters.......................................296.3Japan...................................................................................................................296.3.1Japan’s-D2Dcommerciallaunch..................................................................296.3.2DomesticLegislationandTechnicalParameters:..........................................306.3.2WRC-27AI1.13position...............................................................................31 7FutureForumAnalysisoftheglobalspectrumdevelopmenttrends...........................34 7.1.3TechnologyandStandardizationDrivers(3GPP)..........................................357.1.4Conclusion:ConvergenceofGlobalTrends..................................................367.2GlobalTrendsofD2Dcandidatebands:..............................................................367.2.1AnalysisofGlobalD2DCandidateBandTrends...........................................367.2.2National&RegionalRegulatoryFrameworks:APatchworkUnderDevelopment..........................................................................................................38 ExecutiveSummary Thiswhite paper provides an analysis of global progress and strategic trends inidentifyingcandidate spectrum bands for 6G and Direct-to-Device(D2D)satelliteconnectivity.Theprimarygoalistoinformandshapeaforward-lookingspectrumpolicy, Thetransitionto6GandtheriseofAI-nativeapplicationsaredrivinganunprecedenteddemandfor high-capacity,low-latency connectivity.Spectrum is the foundationalresourceto meet this demand.WRC-27 is identified as a pivotal global forum f