低频窄带PLC通信标准分析

AnalysisofstandardsforLowfrequencynarrowbandpowerlinecommunicationforsmartgridapplicationsForP1901.2AlfredoSanz,COOofADDSemiconductor18-21/5/2010ERDFNanterreFranceNotice/Release/PatentP&P•Notice:ThisdocumenthasbeenpreparedtoassisttheIEEEP1901.2workinggroup.Itisofferedasabasisfordiscussionandisnotbindingonthecontributingindividual(s)ororganization(s).Thematerialinthisdocumentissubjecttochangeinformandcontentafterfurtherstudy.Thecontributor(s)reserve(s)therighttoadd,amend,orwithdrawmaterialcontainedherein.•Release:Thecontributorgrantsafree,irrevocablelicensetoTheInstituteofElectricalandElectronicsEngineers,Inc.(“IEEE”),acorporationwithofficesat445HoesLane,Piscataway,NJ08855-1331,toincorporatematerialcontainedinthiscontribution,andanymodificationsthereof,inthecreationofanIEEEStandardspublication;tocopyrightintheIEEE’snameanyIEEEStandardspublicationeventhoughitmayincludeportionsofthiscontribution;andattheIEEE’ssolediscretiontopermitotherstoreproduceinwholeorinparttheresultingIEEEStandardspublication.ThecontributoralsoacknowledgesandacceptsthatthiscontributionmaybemadepublicbytheIEEEP1901workinggroup.•PatentPolicyandProcedures:ThecontributorisfamiliarwiththeIEEEPatentPolicyandProcedures(s),includingpatentapplications,providedtheIEEEreceivesassurancefromthepatentholderorapplicantwithrespecttopatentsessentialforcompliancewithbothmandatoryandoptionalportionsofthestandard.EarlydisclosuretotheIEEEofpatentinformationthatmightberelevanttothestandardisessentialtoreducethepossibilityfordelaysinthedevelopmentprocessandincreasethelikelihoodthatthedraftpublicationwillbeapprovedforpublica[e-mail],inwrittenorelectronicform,ifpatentedtechnology(ortechnologyunderpatentapplication)mightbeincorporatedintoadraftstandardbeingdevelopedwithintheIEEEP1901.2workinggroup.Ifyouhavequestions,[e-mail]14-ProposednetworkarchitectureƒReviewofexistingsolutions/standards.17–ReviewofPHYmainfeaturesalternativesƒOFDMparametersandOperatingFrequencyƒSynchronizationƒModulationSchemesƒCodinganderrorcorrection18–ReviewofMACmainfeaturesalternativesƒChallengesofNPLCforSGƒBeaconvs.Non-BeaconConfigurationsƒMeshvstreenetworktopologyƒCSMA-CAvsSFN19–CoexistenceandevolutionReviewofexistingsolutions/standardsProposedrulesforevaluation:–IsitbasedonOFDM?–Isitunder500kHz?–isitanopenstandard?NameModulationFreqRangeOpenstandardAclaraTWACS20kHzPatentedG3OFDM100kHzOpenLonWorksBPSK100kHzIEC14908-1IAdOFDM100kHzPatentedPRIMEOFDM100kHzOpenWattecoWPC100kHzPatentedYtranDCSK100kHzPatentedSummaryofG3-PLCSolutionG3-PLCPHYArchitectureG3:EncapsulationofApplicationDataThroughProtocolLayersPRIMEAlliance:HistoryMar2010¾23members,including;8PrincipalMembersand17RegularMembersOctober12th,2009¾PRIMEAllianceFieldTestProvesSuccessfulinteroperabilityformulti-vendorMeteringMay29th2009¾FirstPRIMEALLIANCEmeetingwasheldMay12th,2009¾PRIMEAlliancelaunched.PRIMEStructure(I)PRIMEisthespecificationofasolutionforPowerLineCommunicationsintheCENELECA-BandusingOFDMmodulation.ThissolutionisorientedtoprovidealowcostandveryrobustcommunicationchannelinapplicationssuchasAutomatedMeterManagement.TheaveragetransmissionrateforthePHYlayerisaround70kbpsandthemaximumis128kbpsusingabandwidthof47.363kHzlocatedonthehighfrequenciesoftheCENELECA-Band(41.9to88.8kHz)Thedesignisbasedoninternationalandrecognizedstandardswithspecificimprovementsandmodificationstofitintothisspecificenvironment.PRIMEStructure(II)PRIMEprovidesacompletespecificationofthedataandcontrolplanes,aswellasoftheManagementPlane.Theservice-specificConvergenceLayer(CL)classifiestrafficassociatingitwithitsproperMACconnection.–ThislayerperformsthemappingofanykindoftraffictobeproperlyincludedinMACSDUs.–Itmayalsoincludepay-loadheadersuppressionfunctions.–MultipleConvergencesublayersaredefinedtoaccommodatedifferentkindsoftrafficintoMACTheMAClayerprovidesfunctionalitieslikesystemaccess,bandwidthallocation,connectionestablishment/maintenanceandtopologyresolution.ThePHYlayertransmitsandreceivesMPDUsbetweenneighbornodes.PRIME:ConvergenceLayer(CL)ThislayerperformsthemappingofanykindoftraffictobeproperlyincludedinMACSDUs,providingaccesstothecoreMACfunctionalitiesofsystemaccess,bandwidthallocation,connectionmanagementandmeshtopologyresolution.PRIME:MediumAccessControl(MAC)PRIMEsystemiscomposedofsubnetworks,eachofthemdefinedinthecontextofatransformerstation.Asubnetworkisatreewithtwotypesofnodes,theBaseNodeandtheServiceNodes.TheBaseNodeisattherootofthetreeandactsasamasternodethatprovidesconnectivitytothesubnetwork.Itmanagesthesubnetworkresourcesandconnections.TheMAClayerprovidesallnecessaryfeaturestomanagePRIMEnetworksandsubnetworks:addressing,synchronization(beaconmanagement),dynamicmanagementofthenetworkstructure(promotionanddemotionofterminals),deviceregistrationmanagement,connectionsetupandm