1、HHIUSAI LWI CEOI NT ESCEHMNI COOL ON DGUI ECSTCOOR.,LTD.Page 1Network Slicing in 5G NetworkH UHAIWS IELII CTOE CNHSNEOMLI COOGNI EDSUCCOT.O,LRT D.Page 2切切片片E2E能力：能力：已已具具备备eMBB能力，能力，全全业业务务切切片片发力发力R16eMBB切片：空口大带宽切片：空口大带宽切片级优先级调度切片级QoS保障：软隔离资源预留：硬隔离全业务切片全业务切片mMTC和uRLLC推标R16虚拟专网，按需组合虚拟专网，按需组合AN：从从eMBB到全
2、业务支到全业务支持持切片切片TN：大带宽低时延支持切片：大带宽低时延支持切片CN：服务架构重构，提供切片：服务架构重构，提供切片能能力力丰富的管道类型丰富的管道类型VPN+QoS：软隔 离FlexE：硬隔离模板3模板1模板2用户面分布式，使能短时延业务用户面分布式，使能短时延业务Central DCLocal DCEdge DCVPNFlexEH UHAIWS IELII CTOE CNHSNEOMLI COOGNI EDSUCCOT.O,LRT D.Page 3切片的切片的SLA保障保障SLA输入输入SLA实现实现Latency:20msBandwidth:50 MbpsReliabilit
3、y:99.9999%Users:50 millionIsolation:low切片设计和订购切片设计和订购阶阶段段，完成完成SLA定定义义和和实实例例化化输输入入，通通过切片模板传递过切片模板传递到到运运行行时。时。Latency:20msEdge LocalCenterReliability:99.9999%MEC部署部署资源冗余策略资源冗余策略部署策略部署策略Users:100 million资源规格计算资源规格计算弹性预留量估计弹性预留量估计Isolation:low共享共享/独占独占NF共享共享/独占公共部件独占公共部件Reliability:99.9999%Mobility:NoCh
4、arging:Service-based部件编排部件编排Mobility:No无移动用户管理无移动用户管理Charging:Service-based内容计费内容计费Users:50 million大容量用户管理大容量用户管理 大容量终端管理大容量终端管理信令面双链路配置信令面双链路配置业务配置与业务配置与QoS策略策略Latency:20msBandwidth:50 MbpsQoS策略策略Latency:20ms用户面调度模式用户面调度模式控制面快速切换配置控制面快速切换配置SLA监控与闭环监控与闭环SLA监控监控SLA闭环闭环扩缩容扩缩容QoS协同协同接入接入AMFQoS决策决策RAN接入
5、接入AMFSMFUPF主动监控主动监控RAN能力开放能力开放NFsNEFOTT切片切片的的E2E协同，协同，是通是通过过对切对切片片SLA的输入进的输入进行分行分解解和映射和映射，确定部确定部件件、QoS策策略、部略、部署署策略和策略和业业务配置，务配置，并实施并实施SLA的监控与闭的监控与闭环环，从从而而保保证证了了切切片片的的业业务务目目标标实现实现H UHAIWS IELII CTOE CNHSNEOMLI COOGNI EDSUCCOT.O,LRT D.Page 4切片实例是基于网络切片实例是基于网络能能力力生生成成的的商商业业应应用用实例实例5GeMBB业务业务mMTC业务业务URL
6、LC业务业务VR直播直播远程控制危险操作远程控制危险操作兰亭第二现场VR沉浸式体验三一重工提出的远程控制挖掘机现场直播现场直播阿里直播对主播体验保障远程医疗远程医疗郑州大学一附院急求车通信保障智能电网智能电网南方电网抄表及调度车联网车联网上海大众汽车辅助及娱乐系统切片实例切片实例基本业基本业务务切片模板切片模板花椒VR直播HH IUSAI LWI CEOI NT ESCEHMNI COOL ON DGUI ECSTCOOR.,LTD.Page 5Content E2E切片overview 5G 核心网切片（SA2）5G 切片管理（SA5）5G RAN切片（RAN）Open discussion
7、H UHAIWS IELII CTOE CNHSNEOMLI COOGNI EDSUCCOT.O,LRT D.Page 620162017201820192020GlobalLaunchRel-14Rel-165G SA 2.0SARel-15NSAeMBBSlicing/Low Latency/5G MEC3GPP仅定义MF Service、服务接口、数据模型，对厂商 管理面商业模式带来挑战切片管理需求定义（切片管理需求定义（TS 28.530）生命周期管理NSI/NSSI的创建/修改/销毁/激活/去激活/编排故障管理NSI/NSSI的告警数据上报/监控性能管理NSI/NSSI的性能监控NS
8、I/NSSI的性能任务管理/数据采集/阈值管理配置管理NSI/NSSI中NF实例配置NSI：Network Slice InstanceNSSI：Network Slice Subnet Instance管理面服务化架构管理面服务化架构（TS 28.533，讨论中）讨论中）5G R15标准即将结题标准即将结题，SA5将将完完成成切切片片管管理理需需求求和和管管理理面面服服务务化化架架构构定义定义Page 73GPP SA53GPP RAN 2/33GPP SA 2/3ETSI NFVAccess&Congestion controlSlice QoSResource IsolationL2 S
9、oftAirRAN Slice Protocol CustimaizationSlice MobilityDiscover and identify sliceSlice Management Slice Awareness Slice AssuranceSlice CustomizationSlice Selection and AssociationOne UE Multiple Slices MgmnCN slice resource isolationSlice SecuritySlice RoamingProgrammable UPCustomized Value-added NFs
10、 (MLAN,App Mobility)Control Plane Component CustomizationCross Domain ArchitectureSlice Blueprint DefinitionSLA Allocation&AssuranceTenant StatisticsCross Domain InterfaceOrchestratorMANOVNFManager(s)V Infra-sManager(s)SouthboundRel-15Rel-15Rel-15Rel16:Phase II StandardizationRel15:Phase I Standardi
11、zation20192018HUAWEI Confidential2017HUAWEI TECHNOLOGIES Co.,Ltd.E2E切片切片3GPP标准进展标准进展2018.6Rel-15：完成端到端切片基本流程定义，保证eMBB业务端到端切片Rel-16：定义多种垂直业务，引入网络智 能化overviewManagementArchitectureRAN supporting Open discussionHH IUSAI LWI CEOI NT ESCEHMNI COOL ON DGUI ECSTCOOR.,LTD.Page 83GPP作为5G网络架构切片标准定义主体；SA2负责端到端
12、切片架构和流程定义；SA5负责端到端切片管理架构定义；其他SDO以3GPP切片定义为基础进行扩展和增强；SA2SA5network slicing related virtual resource requirementsRAN3network slicing related Transport requirementsBBF/IETFProvide transport support to 3GPP defined network slicingRAN2End-to-end network slicing architectureEnd-to-end network slicing mana
13、gementSlicing managementSlicing related terminology5G网络切片标网络切片标准准组织关系组织关系NGMNGSMAOperator Requirement5GSA5GAAVertical RequirementSA1SA3SA6Bi-directional API for network sliceSlice awareness in RANSlicing selectionSlicing requirementSlicing security and privacyETSI NFVProvide virtualization support t
14、o 3GPP defined network slicingoverviewManagementArchitectureRAN supporting Open discussionHHUI SAI LWI CEOI NT ESCEHMNI COOL ON DGUI ECSTCOOR.,LTD.Page 9Huawei ConfidentialSlice Instance BSlice supporting system(SSS)Network SliceTemplateDesignerCross Domain Slice Manager (multi-vendor)OSSEMSCN-DSM1:
15、N1:N1:NSlice Instance ABSSTerminalAN(1.n)TN(1.n)Edge DCCore DCCN(1.n)APPAPANPartANPartThird-party “BSS”SThird-party“BSS”Common Infrastructure LayerE2E 切片架构描述切片架构描述Network Service LayerDomain slice supporting system(DSS)AN-DSMTN-DSMNetwork Management Layer BSS Layer:Product design/order for industry
16、tenant Network Management LayerCross domain Slice Orchestrator Layer:E2E slice design,provision and assurance based on SLADomain Slice Management Layer:RAN/Transport/Core domain slice management according to SLA decomposition Resource Layer:Domain resource management,schedulingand coordination分层架构实现
17、自动闭环切片分层架构实现自动闭环切片管管理理overviewManagementArchitectureRAN supporting Open discussionPage 10HUAWEI TECHNOLOGIES Co.,Ltd.HUAWEI ConfidentialE2E切片关键术语切片关键术语3rd Party APPCentral DCiDriveAutopilotCN PartCN PartTeslaAutopilotiMAPBMWiDriveiMAPiVideoVLAN1VLAN2Transport NetworkTerminal 1Terminal 2CN PartCN Par
18、tEdge DCRAN PartRAN Part3rd Party ServiceAABiVideoBSlice type=URLLCBSlice type=eMBBTenant：the operators customers(for example,customers from vertical industries)or the operators themselvesService:a tenant carries on a variety of services.Slice Type:e.g.eMBB,URLLC,mMTC,FMC.NSSAI=A set of s-NSSAI(netw
19、ork slice instanceselection assistance information)s-NSSAI=SST(Slice Type)+SD SD：Slice Differentiator,includes tenant informationE2E Slice Instance(ESI)：A set of Network Function instances and the required resources (pute,storage and networking resources)which form a deployed Network Slice.Aoverview
20、ManagementArchitectureRAN supporting Open discussionNetwork Slice=Multiple Network Slice Instances.Each S-NSSAI assists the network in selecting a particular Network Slice InstanceHH IUSAI LWI CEOI NT ESCEHMNI COOL ON DGUI ECSTCOOR.,LTD.Page 11Content E2E切片overview 5G 核心网切片（SA2）5G 切片管理（SA5）5G RAN切片（
21、RAN2/3）Open discussionHH IUSAI LWI CEOI NT ESCEHMNI COOL ON DGUI ECSTCOOR.,LTD.Page 12切切片片标识和切片实例标识和切片实例S-NSSAI：网络切片标示符，包括SST（切片类型）和SD（无定义）.标准化SST与相应网络切片特征之间的映射，以确保漫游场景中终端用户的一致性，可能由SA1负责定义S-NSSAI#1S-NSSAI#2S-NSSAI#3Network slice instance#1Network slice instance#2Network slice instance#3Network slice
22、 instance#4Slice/Service typeSST valueeMBB(enhanced Mobile Broadband)1URLLC(ultra-reliable low latency communications)2MIoT(massive IoT)3NSSAI(Network slice selection assistance information)S-NSSAI#1Slice/Service Type(SST)Slice Differentiator(SD)S-NSSAI#2S-NSSAI#3Network slice instance#5S-NSSAI#4ove
23、rviewManagementArchitectureRAN supporting Open discussionPage 13切片划分建议：按业切片划分建议：按业务务分分类类，按按垂垂直直厂厂商商形形成成实实例例一类业务对应一个一类业务对应一个切片类切片类型型（切片模板）（切片模板）车载车载 设备设备IoT终端终端移动移动 终端终端ANTNANTNCN基本基本功能功能上网上网语音语音视频视频能源抄表能源抄表辅助驾驶辅助驾驶移动移动 终端终端移动移动终端终端语音语音 可靠性可靠性高带高带 宽宽基本基本功能功能基本基本 功能功能+省电版省电版 基本功能基本功能基基本本功功 能能+低低 时时 延延
24、针对一个租户，使用切片模板产针对一个租户，使用切片模板产生生切片实例切片实例 一个切片类型可以产生一个或者一个切片类型可以产生一个或者多多个切片个切片实实例例车载车载 设备设备辅助驾辅助驾驶驶 For BMW车载车载 设备设备辅助驾辅助驾驶驶 For VW能源抄能源抄表表 For 水厂水厂能源抄能源抄表表 For 电厂电厂IoT 终端终端IoT移动移动 终端终端切片数量相关的标准定义：切片标识（S-NSSAI）长度为4 byte。包括：SST(Slice/Service Type)：1byte，类型，目前定义了eMBB，uRLLC，MIoT三类 SD(slice Differentiator)
25、：3byte，细分同个SST中的切片实例，例如租户信息每个用户最多支持8个切片的业务H U A WI H SEI LII CT E CO NHSNEOMLI COOGNI EDSUCCOT O.,LRT D.视视频频 For 合作合作OTT切片实例切片实例3切片实切片实例例n.终端终端.移动移动 终端终端语音业务语音业务切片实例切片实例2移动移动 终端终端上网业务上网业务切片实切片实例例1其他可能的应用场景：低抖动工业控制，公共灾害告警，监控视频，救护车医疗数量多数量多差异化定制多差异化定制多差异化定制多差异化定制多E2E隔离要求高隔离要求高HH IUSAI LWI CEOI NT ESCEH
26、MNI COOL ON DGUI ECSTCOOR.,LTD.Page 14会话建立过程中的切片选择会话建立过程中的切片选择AMFUPFNRFDN1DN2SMFNS#1UPFNRFSMFUPFSMF1.PDU session Est.Req(S-NSSAI,DNN,etc)3.SMF discovery(S-NSSAI NSI ID)4.PDU session Est.Req5.PDU session Est.6b.PDU session Est.Rsp(S-NSSAI,DNN,etc)6a.Session info(S-NSSAI)APP-AAPP-BNetwork Slicing Sele
27、ction Policy(NSSP)Default rule-S-NSSAI 1NSSP rule 1App-AS-NSSAI 1NSSP rule 2App-BS-NSSAI 2NSSP rule 3.NS#2NS#3会话管理会话管理不同切片的会话管理控制面隔离AMF和SMF解耦不同切片的会话管理用户面隔离不同切片的UPF相互独立会话不能在不同切片之间迁移NSS F2.NSI selection(NSI ID,NRF)overviewManagementArchitectureRAN supporting Open discussionHH IUSAI LWI CEOI NT ESCEHMN
28、I COOL ON DGUI ECSTCOOR.,LTD.Page 15Content E2E切片overview 5G 核心网切片（SA2）5G 切片管理（SA5）5G RAN切片（RAN2/3）Open discussionHuawei ConfidentialHUAWEI TECHNOLOGIES CO.,LTD.16网络切片管网络切片管理理SA5-研究概况研究概况Slice designDesign a network slice to meet certain network characteristics required by an end-user service or a b
29、usiness service,including serviceinstance and network slice(subnet)template design and managementSlice managementControl and manage the network slice,including the lifecycle management(e.g.creation,termination),slice monitoring and a ssurance (e.g.performance and fault monitoring),and network slicin
30、g management architectureSlice orchestrationOrchestration of the components of the network slice,including the shared slice instance management,orchestration of slices acrossmultiple operators,end-to-end network slice orchestration and coordination between 3GPP and non-3GPP management systemsSlice a
31、utomationApply SON concept for network slicing management,including slice instance automated healing and optimizationSlice management and orchestrationSlice designServiceTemplateLCMSlicemanagementFM/PMArchitec tureSlice orchestrationSlice sharingMulti-operator orchestrationE2EcoordinationSlice autom
32、ationAuto-healingAuto-optimizationoverviewManagementArchitectureRAN supporting Open discussionHH IUSAI LWI CEOI NT ESCEHMNI COOL ON DGUI ECSTCOOR.,LTD.Page 17E2E网络切片管网络切片管理理-SA5overviewManagementArchitectureRAN supporting Open discussionSlice ProvisioningSlice Design(Slice Template)TenantCross domai
33、n slice(multi-vendmanageror)Vendor CapabilitySLA informationNetwork Slice Template DesignerNSMFNSSMFTN-NSSMFCN-NSSMFAN-NSSMFCustomized Slice template and agile on-boardingSharing and/or isolation in cloud infrastructureSupporting Vertical Requirements bymanagement InterfaceMapping of service modelan
34、d network resource modelClosed-loop automation ofslice subnet Slice design and template-Multiple services,slice template assembly Service based management interface(Service,Network)-Providing programming API capability Closed-loop automation-Automatedadjustment according to services experiencePage 1
35、8HUAWEI TECHNOLOGIES Co.,Ltd.HUAWEI ConfidentialSSSE2E OrchestratorE2E 切片业切片业务务流设计和规划流设计和规划5G RANTransportCore5G RAN DSMTransport DSMCN DSMSlice DesignOfferingDesignSlice AssuranceOffering OrderSlice ProvisionE2E SliceAggregationIF-MSM-RANIF-MSM-CNIF-BSMIF-TRANSSlice Monitor 查询域切片定义模板到E2E Orchestrat
36、or（包括域切片类型和对应的SLA范围）;将单域切片定义集成到E2E切片定义中;导入E2E切片定义模板;设计特定的E2E切片满足具有拖放功能GUI的要求（包括初始延迟配额和调整优先级）上，将模板保存到E2E编排器中;向BSS层导入新的切片类型，支持Offering Design;Design network slices according to the networkcapabilities and SLA requirements.Application/Business LayeroverviewManagementArchitectureRAN supporting Open disc
37、ussionPage 19HUAWEI TECHNOLOGIES Co.,Ltd.HUAWEI ConfidentialE2E 切片业务流切片业务流 之之 切片部署切片部署overviewManagementArchitectureRAN supporting Open discussion BSS触发NSI的生成 跨域切片管理器定义E2E切片：-根据服务类型选择Slice模板-基于位置和切片模板的切片拓扑设计-切片功能根据SLA和网络功能进行定义-将SLA分解到不同的域，并与相关域进行协商 跨域切片管理器从每个MBB/FBB域切片管理订阅域KPI;每个 MBB/FBB域切片管理器报告部署进度
38、。RAN/传输/核心网功能和资源编排HH IUSAI LWI CEOI NT ESCEHMNI COOL ON DGUI ECSTCOOR.,LTD.Page 20Content E2E切片overview 5G 核心网切片（SA2）5G 切片管理（SA5）5G RAN切片（RAN）Open discussionPage 21HUAWEI TECHNOLOGIES Co.,Ltd.HUAWEI Confidential基于切片基于切片的的RAN NumerologyHard Radio SlicingSoft Radio SlicingElastic capacity for each sli
39、ce to enhanceusage of network resourceFlexible sub-carrier bandwidthFlexible air interfaceFlexible sub-carrier bandwidth,CP and TTI designedto meet different requirement of servicesSmart HomeAR/VRV2XTimeFrequencyFlexible TTIFrequencyTI M ETimeIndependentResourceSharedResource1)eMBB,uRLLC,Idle2)eMBB
40、idle,uRLLC CongestionSchedule more resource for platooning3)eMBB and uRLLC CongestionAdjust the allocation proportionoverviewManagementArchitectureRAN supporting Open discussionH UUA WWEEII TECHNOOLLOOGIES CCoO.,LtTdD.H U AHWuEaIwCeoinCfoi dnefindtei anltialGenerallyGenerally principlesprinciplesA n
41、etwork slice always consists of a RAN part and a CN partNetwork can realise the different network slices by scheduling and also by providing different L1/L2 configurationsWhile the network can support large number of slices(hundreds),the UE need not support more than 8 slices simultaneously技术点技术点当前当
42、前R R1 15 5标准进展标准进展后续计划后续计划RAN感感知切片知切片RAN2同意基于会话粒度的切片感知，RAN将根据切片的配置信息，根据实现满足UE支持的切片SLA需求N/AAMF选择选择RAN2同意Msg5携带切片信息，具体的消息内容待讨论RAN3同意NG口交互切片信息Rel-15:RAN2定义具体的切片信息(Msg3和Msg5)切片切片感感知知的的切换切换RAN3同意相邻基站间交互切片信息，用于目的基站选择，从而启动Xn、NG切换流程Rel-15：RAN3定义Xn/NG切换信令中携带具体的切片信令和原因QoS保障保障RAN2同意新定义SDAP层支持切片内QoS Flow到DRB映射R
43、el-15:RAN2定义具体的SDAP格式切片切片感知感知的的空闲空闲态态/inactiveUE接入控制：基于Category ID小区重选：沿用LTE方案，其他方案待定Rel-15：RAN2接入控制/小区重选考虑切片信息RAN part 切片切片选择选择RAN基于实现，对标准无影响N/A切片切片区域区域化化部署部署SA2/RAN同意UE注册区域内支持切片不变Rel-16：更小粒度的切片部署RAN part 切片切片ID后续讨论Rel-16：引入RAN part ID用于RAN处理Page 22overviewManagementArchitectureRAN supporting Open
44、discussionRAN切片切片R15H UUA WWEEII TECHNOOLLOOGIES CCoO.,LtTdD.H U AHWuEaIwCeoinCfoi dnefindtei anltialSupport of Network Slicing relies on the principle that traffic fordifferent slices is handled by different PDU sessions.Different DRBs are configured for different slicesNetwork can realise the diff
45、erent network slices by scheduling and also by providing different L1/L2 configurationseMBB slices are configured with full L2 protocol stack and allfunctionalitiesuRLLC slices are with packet duplication in L2 and short TTInumerology mappingmMTC slices may not be configured with PDCP layerCustomize
46、d protocol stacks and procedures adapting to differentslices featuresPage 23RAN切切片片-QoS保障保障overviewManagementArchitectureRAN supporting Open discussion Slice#2U PFRadioNG-U NG-RAN 5GC U EN BU P F -Slice#1P D U Session Slice#1Radio BearerNG-U TunnelQoS FlowQoS FlowRadio BearerQoS FlowP D U Session Sl
47、ice#2Radio BearerNG-U TunnelQoS FlowP-GWS-GWPeer EntityUEeNBEPS BearerRadio BearerS1 BearerEnd-to-end ServiceExternal BearerRadioS5/S8S1 E-UTRAN EPC InternetGiE-RABS5/S8 BearerLTE QoS5G QoSQoS features in NRQoS feature in LTE1End to End:QoS flow granularityUu interface:DRB granularityEnd to End:EPS
48、bearerUu interface:DRB granularity2M:1 QoS flow to DRB mapping1:1 EPS bearer to DRB mapping3Support both AS reflective QoS andNAS reflective QoSN/A4New SDAP layerN/APage 24HUAWEI TECHNOLOGIES Co.,Ltd.HUAWEI Confidential切片定制：差异化协切片定制：差异化协议议栈栈配配置置和和功功能能部署部署Slice specific protocol stacks and algorithms
49、 achieve on demand slice and reduce TTMSlice specific protocol stacksmMTCeMBBuRLLCRLCMACPHYRRC PDCPRLCMACPHYRRCmMTCuRLLCeMBBRRUCNRFRFRF CP UPRRC 1PDCP 2PDCP3RLC12Optionalhead compressionFlexible deployment3Optional mobility functionreduce function components that the slices neednt,reduce waste of re
50、sourcesMinimum function of one slice,only keep necessary components,reduce failure probabilitySimplify OM of SliceRegiona l DCLocal DCCentral OfficeRemote SiteRFLocationSlice#3 (uRLLC)CN-Common-CPCN-CP#1CN-CP#2CN-CP#3CN-UP#1CN-UP#2RAN-ACCRAN-ACU#1RAN-RACRAN-RAURAN-ACU#2RAN-ACU#3CN-UP#3RFRAN-RACRAN-R
