RAN Slicing Logical Private RAN to Verticals

5GWhitePaper:RANSlicingRANSlicing:LogicalPrivateRANtoVerticalsVersion1.0FuTUREForum5GSG2019/11/205GWhitePaper:RANSlicing内容摘要网络切片是公认的5G核心使能技术。切片赋能5G运营商打造垂直行业服务能力，推动网络即服务能力建设。网络切片是端到端的能力，基于核心网虚拟化网元隔离的切片，是业界广泛认可的切片方式。本白皮书重点探讨为了支持端到端的网络切片能力，无线接入网络是否需要进行切片，以及如何进行无线切片的问题，以期能明确无线网络如何对端到端网络切片进行支撑，从而保证为不同垂直行业、不同客户、不同业务，提供相互隔离、功能可定制的网络服务，进一步推动网络切片的实用化。白皮书首先在第一章引言部分介绍了网络切片的概念并提出无线接入网络是否需要进行切片，以及如何进行无线切片的问题，在第二章论述了网络切片的整体发展现状，其中包括了端到端的网络切片定义以及现有的技术和标准状态。在第三章讨论了在端到端的网络切片中，无线切片的角色定位，并讨论了无线切片的研究需求。在白皮书第四章中，针对第三章列出的对无线切片的研究需求，提出了对应的技术解决方案。并在第五章中给出了具体的无线切片应用案例。由于篇幅所限，未能将对无线切片技术与产业进行更深入的分析与研究，谨希望白皮书能够发现并解决一些关键问题，进一步明确无线切片所面临的挑战与发展趋势，为网络切片技术的进一步实用化贡献力量。5GWhitePaper:RANSlicingExecutiveSummaryNetworkslicinghasbeenrecognizedasacoreenablingtechnologyin5Gnetworkingenvironments.Itempowers5Goperatorstobuildthecapabilityofverticalindustryservices,promotingNetworkasaService(NaaS)innovations.Networkslicingindicatesanend-to-end(E2E)servicecapability.Aslice-isolatingapproachbasedonvirtualizednetworkelements(NEs)ofthecorenetworkhasbeenwidelyacceptedintheindustry.ThiswhitepaperfocusesonwhetherRadioAccessNetwork(RAN)slicingisrequiredandhowitisimplemented,forthepurposeofE2Enetworkslicing.ThepaperaimstoclarifyhowanRANsupportsE2Enetworkslicingtoensureisolatedandcustomizablenetworkservicesfordifferentverticalindustries,customersandservices.Thispaperintendstofurtherpromotepracticalnetworkslicing.ChapterOneintroducestheconceptofnetworkslicing,andputsforwardthequestionsofwhetherRANslicingisrequiredandhowitisimplemented.ChapterTwodescribestheoveralldevelopmentsituationofnetworkslicing,includingthedefinitionofE2Enetworkslicingandtheexistingtechnologiesandrelevantstandards.InChapterThree,theroleofRANslicinginE2Enetworkslicingisdescribed,andtheresearchrequirementsofRANslicingarediscussed.ChapterFourproposesthecorrespondingtechnicalsolutionsforresearchrequirementsofRANslicinglistedinChapterThree.ChapterFiveprovidesspecificapplicationcasesofRANslicing.Duetospacelimitation,RANslicingtechnologyandindustryisnotfurtheranalyzedandinvestigatedinthewhitepaper.Wehopethatthepaperhelpstoidentifyandsolvecertainkeyproblems,furtherclarifythechallengesanddevelopmenttrendofRANslicing,andcontributetofurtherpracticalityofnetworkslicingtechnology.5GWhitePaper:RANSlicing目录ExecutiveSummary.....................................................................................................31Introduction.......................................................................................................12Overview.............................................................................................................22.1WhatisNetworkSlicing?.............................................................................22.1.1NetworkSlicingDefinition................................................................22.1.2NetworkSlicingIdentifier.................................................................22.1.3NetworkSlicingInstance...................................................................32.2TechnicalStandards......................................................................................42.3IndustrialProgress........................................................................................53RANSlicingRequirements...............................................................................63.1RoleofRANSlicing....................................................................................63.2RequirementsofRANSlicing......................................................................73.2.1ResourceIsolation..............................................................................73.2.2QoSGuarantee...................................................................................83.2.3AccessandMobilityEnhancement..................................................103.2.4MonitoringandManagement...........................................................113.2.5LogicalResourceConstructionandOrchestration..........................124RANSlicingTechnology.................................................................................144.1Slice-separatedmanagementinRAN.........................................................144.2QoSGuaranteebasedonslicing.................................................................154.3Mobilityenhancementbasedonslicing.....................................................154.3.1Slice-awareidle/inactiveUEMobility.............................................154.3.2Slice-awareconnectedUEMobility................................................194.4SliceAssociationTechnology.....................................................................204.4.1Non-PublicNetwork........................................................................204.4.2SimulatedSlicingTechnologyinNon-standalone(NSA)Mode.....215RANSlicingUseCases....................................................................................245.1UnmannedAerialVehicle(UAV)...............................................................245.2IndustrialInternet.....