)anizationdiscussionsTechnologiesRadioTechnologies2Gradio:GSM,GPRS,EDGE3Gradio:WCDMA,HSPA4Gradio:LTE,LTE-work2G/3G:CS,GPRS3G/4G:EvolvedPacketCore(EPC)IPMultimediaSubsystem(IMS)SecurityAssurancePolicyControlChargingandO&MServicerelatedaspectsM2MPublicSafety*3GPP–~features20132015201420172016Release12Release13Release142020 “Ready” muncations(GCSE)IsolatedE-UTRANOperation forPublicSafety(IOPS)MissionCriticalPushtoTalk(MCPTT)ProximityServices(ProSe)Device-to-munications(D2D)muncations(GCSE)contd…ProximityServices(ProSe)contd…Device-to-munications(D2D)contd..PossiblefurtherenhancementstoRel-municationfunctionalityaddedtoRelease12Release13willaddthefollowingpiecesoffunctionality:RestrictedProSeDirectDiscoveryfornon-PublicSafetyuse;ProSeDirectDiscoveryforPublicSafetyuse;SupportformodelBProSeDirectDiscoveryforallusecases();workrelaysforPublicSafetyuse;ProSeUE-UErelaysforPublicSafetyuse;municationone-to-oneforPublicSafetyuse;munications(GCSE)BasicGCSEsupportwasspecifiedinRel-municationtoagroupofUEsforthedesignofapplicationlayerfunctionalityRelease13willaddthefollowingpiecesoffunctionality:workandaProSeUE-:municationandProSeUE-,-to-Talk(MCPTT)RequirementsdefinitionhasbeenongoinginRelease13,municationDesignedtosupportmissioncriticalusage,butcanbedeployedinnon-missioncriticalscenariosEmulatesfunctionsprovidedbyPMR/roupcallsupport,butprivateone-to-workMCPTTcontinuedAttributesTypesofcalls:“Regular”groupcallBroadcastgroupcall,:noresponseexpectedbyinitiatinguserGroupcallbasedonpriorities,:highprioritygroupcallthatcouldpre-emptotherin-progresscallsPrivatecalls:one-to-onecallswithfloorcontrolMembership:UsersmustbeagroupmemberinordertoreceiveandtransmittothegroupIsolatedE-UTRANOper
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