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1NetworkSlicingin5G

NetworkNetworkSlicingin5GNetwork1HUHAIWSIELIICTOECNHSNEOMLICOOGNIEDSUCCOT.O,

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2切片E2E能力：已具備eMBB能力，全業務切片發力R16eMBB切片：空口大帶寬切片級優先級調度切片級QoS保障：軟隔離資源預留：硬隔離全業務切片mMTC和uRLLC推標R16虛擬專網，按需組合AN：從eMBB到全業務支持切片

TN：大帶寬低時延支持切片

CN：服務架構重構，提供切片能力豐富的管道類型VPN+QoS：軟隔離FlexE：硬隔離模板3模板1 模板2用戶面分布式，使能短時延業務CentralDCLocalDCEdgeDCVPN FlexEHUHAIWSIELIICTOECNHSNEOMLICOOG2HUHAIWSIELIICTOECNHSNEOMLICOOGNIEDSUCCOT.O,

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3切片的SLA保障SLA輸入SLA實現Latency:

20msBandwidth:50

MbpsReliability:

99.9999%Users:50

millionIsolation:

low切片設計和訂購階段，完成SLA定義和實例化輸入，通過切片模板傳遞到運行時。Latency:

20msEdge

Local

CenterReliability:

99.9999%MEC部署資源冗余策略部署策略Users:100

million資源規格計算彈性預留量估計Isolation:low共享/獨占NF共享/獨占公共部件Reliability:

99.9999%Mobility:

NoCharging:

Service-based部件編排Mobility:

No無移動用戶管理Charging:

Service-based內容計費Users:50

million大容量用戶管理

大容量終端管理信令面雙鏈路配置業務配置與QoS策略Latency:

20msBandwidth:50

MbpsQoS策略Latency:

20ms用戶面調度模式控制面快速切換配置SLA監控與閉環SLA監控SLA閉環擴縮容QoS協同接入AMFQoS決策RAN接入AMFSMFUPF主動監控RAN能力開放NFsNEFOTT切片的E2E協同，是通過對切片SLA的輸入進行分解和映射，確定部件、QoS策略、部署策略和業務配置，并實施SLA的監控與閉環，從而保證了切片的業務目標實現HUHAIWSIELIICTOECNHSNEOMLICOOG3HUHAIWSIELIICTOECNHSNEOMLICOOGNIEDSUCCOT.O,

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4切片實例是基于網絡能力生成的商業應用實例5GeMBB業務mMTC業務URLLC業務VR直播遠程控制危險操作蘭亭第二現場VR沉浸式體驗三一重工提出的遠程控制挖掘機現場直播阿里直播對主播體驗保障遠程醫療鄭州大學一附院急求車通信保障智能電網南方電網抄表及調度車聯網上海大眾汽車輔助及娛樂系統切片實例基本業務

切片模板花椒VR直播HUHAIWSIELIICTOECNHSNEOMLICOOG4HHIUSAILWICEOI

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5ContentE2E切片overview5G

核心網切片（SA2）5G

切片管理（SA5）5G

RAN切片（RAN）Open

discussionHHIUSAILWICEOINTESCEHMNICOOLO5HUHAIWSIELIICTOECNHSNEOMLICOOGNIEDSUCCOT.O,

LRTD.Page

62016 2017 2018 2019 2020GlobalLaunchRel-14Rel-165GSA

2.0SARel-15NSAeMBBSlicing/LowLatency/5G

MEC3GPP僅定義MF

Service、服務接口、數據模型，對廠商管理面商業模式帶來挑戰切片管理需求定義（TS

28.530）生命周期管理NSI/NSSI的創建/修改/銷毀/激活/去激活/編排故障管理NSI/NSSI的告警數據上報/監控性能管理NSI/NSSI的性能監控NSI/NSSI的性能任務管理/數據采集/閾值管理配置管理NSI/NSSI中NF實例配置NSI：NetworkSlice

InstanceNSSI：NetworkSliceSubnet

Instance管理面服務化架構（TS

28.533，討論中）5G

R15標準即將結題，SA5將完成切片管理需求和管理面服務化架構定義HUHAIWSIELIICTOECNHSNEOMLICOOG6Page

73GPP

SA53GPPRAN

2/33GPPSA

2/3ETSI

NFVAccess&Congestion

controlSlice

QoSResource

IsolationL2

SoftAirRANSliceProtocolCustimaizationSlice

MobilityDiscover

andidentify

sliceSliceManagementSliceAwarenessSlice

AssuranceSlice

CustomizationSliceSelectionand

AssociationOneUEMultipleSlices

MgmnCNslice

resourceisolationSlice

SecuritySlice

RoamingProgrammable

UPCustomized

Value-addedNFs(MLAN,App

Mobility)ControlPlaneComponentCustomizationCrossDomain

ArchitectureSliceBlueprint

DefinitionSLAAllocation&

AssuranceTenant

StatisticsCrossDomain

InterfaceOrchestratorMANOVNFManager(s)V

Infra-sManager(s)SouthboundRel-15Rel-15Rel-15Rel16:PhaseII

StandardizationRel15:PhaseI

Standardization2019~2018HUAWEI

Confidential2017HUAWEITECHNOLOGIESCo.,

Ltd.E2E切片3GPP標準進展2018.6Rel-15：完成端到端切片基本流程定義，保證eMBB業務端到端切片Rel-16：定義多種垂直業務，引入網絡智能化overviewManagementArchitectureRANsupportingOpen

discussionPage73GPPSA53GPPRAN2/33GPP7HHIUSAILWICEOI

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83GPP作為5G網絡架構切片標準定義主體；SA2負責端到端切片架構和流程定義；SA5負責端到端切片管理架構定義；其他SDO以3GPP切片定義為基礎進行擴展和增強；SA2SA5networkslicingrelatedvirtualresourcerequirementsRAN3networkslicingrelatedTransport

requirementsBBF/IETFProvidetransportsupportto3GPPdefinednetworkslicingRAN2End-to-endnetworkslicingarchitectureEnd-to-endnetworkslicing

managementSlicing

managementSlicingrelated

terminology5G網絡切片標準組織關系NGMN

GSMAOperator

Requirement5GSA5GAAVertical

RequirementSA1SA3SA6Bi-directionalAPIfornetwork

sliceSlice

awarenessin

RANSlicingselectionSlicing

requirementSlicingsecurityandprivacyETSI

NFVProvidevirtualizationsupportto3GPPdefinednetworkslicingoverviewManagementArchitectureRANsupportingOpen

discussionHHIUSAILWICEOINTESCEHMNICOOLO8HHUISAILWICEOI

NTESCEHMNICOOLONDGUIECSTCOOR.,

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9Huawei

ConfidentialSliceInstance

BSlice

supporting

system

(SSS)Network

SliceTemplateDesignerCrossDomainSliceManager(multi-vendor)OSSEMSCN-DSM1:N1:N 1:NSliceInstance

ABSSTerminalAN(1..n)TN(1..n)Edge

DCCore

DCCN(1..n)

APPAPANPartANPartThird-party“BSS”SThird-party“BSS”CommonInfrastructure

LayerE2E

切片架構描述NetworkService

LayerDomain

slice

supporting

system

(DSS)AN-DSM TN-DSMNetworkManagement

LayerBSS

Layer:

Product

design/order

for

industry

tenantNetworkManagement

LayerCross

domain

Slice

Orchestrator

Layer:

E2Eslicedesign,

provision

and

assurance

based

on

SLADomainSliceManagementLayer

:RAN/Transport/CoredomainslicemanagementaccordingtoSLAdecompositionResource

Layer

:Domain

resource

management,

schedulingand

coordination分層架構實現自動閉環切片管`理overviewManagementArchitectureRANsupportingOpen

discussionHHUISAILWICEOINTESCEHMNICOOLO9Page

10HUAWEITECHNOLOGIESCo.,

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ConfidentialE2E切片關鍵術語3rdPartyAPPCentral

DCiDriveAutopilotCN

Part CN

PartTeslaAutopilotiMAPBMWiDriveiMAPiVideoVLAN1 VLAN2 Transport

NetworkTerminal

1Terminal

2CN

PartCN

PartEdge

DCRAN

PartRAN

Part3rdParty

ServiceAABiVideoBSlicetype=

URLLCBSlicetype=

eMBBTenant：theoperators'customers(for

example,customersfromverticalindustries)ortheoperators

themselvesService:atenantcarriesonavarietyof

services.SliceType:e.g.eMBB,URLLC,mMTC,

FMC...NSSAI=Asetofs-NSSAI(networkslice

instanceselectionassistance

information)s-NSSAI=SST(SliceType)+SDSD：SliceDifferentiator,includestenantinformationE2ESliceInstance(ESI)：AsetofNetworkFunctioninstancesandtherequired

resources(pute,storageandnetworkingresources)whichformadeployedNetworkSlice.AoverviewManagementArchitectureRANsupportingOpen

discussionNetworkSlice=MultipleNetworkSliceInstances.EachS-NSSAIassiststhenetwork

inselectingaparticularNetworkSlice

InstancePage10HUAWEITECHNOLOGIESCo.10HHIUSAILWICEOI

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11ContentE2E切片overview5G

核心網切片（SA2）5G

切片管理（SA5）5G

RAN切片（RAN2/3）Open

discussionHHIUSAILWICEOINTESCEHMNICOOLO11HHIUSAILWICEOI

NTESCEHMNICOOLONDGUIECSTCOOR.,

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12切片標識和切片實例S-NSSAI：網絡切片標示符，包括SST（切片類型）和SD（無定義）.標準化SST與相應網絡切片特征之間的映射，以確保漫游場景中終端用戶的一致性，可能由SA1負責定義S-NSSAI

#1S-NSSAI

#2S-NSSAI

#3Networksliceinstance

#1Networksliceinstance

#2Networksliceinstance

#3Networksliceinstance

#4Slice/Service

typeSST

valueeMBB(enhancedMobile

Broadband)1URLLC(ultra-reliablelowlatency

communications)2MIoT(massive

IoT)3NSSAI(Networksliceselectionassistance

information)S-NSSAI

#1Slice/Service

Type

(SST) SliceDifferentiator

(SD)S-NSSAI

#2S-NSSAI

#3……Networkslice

instance

#5 S-NSSAI

#4overviewManagementArchitectureRANsupportingOpen

discussionHHIUSAILWICEOINTESCEHMNICOOLO12Page

13切片劃分建議：按業務分類，按垂直廠商形成實例一類業務對應一個切片類型（切片模板）車載設備IoT終端移動終端ANTNANTNCN基本功能上網語音視頻能源抄表輔助駕駛移動終端移動終端語音可靠性高帶寬基本功能基本功能++省電版基本功能基本功能

+低時延針對一個租戶，使用切片模板產生切片實例一個切片類型可以產生一個或者多個切片實例車載設備輔助駕駛ForBMW車載

設備 輔助駕駛For

VW能源抄表For

水廠能源抄表For

電廠IoT終端IoT移動

終端 切片數量相關的標準定義：切片標識（S-NSSAI）長度為4

byte。包括：SST(Slice/Service

Type)

：

1byte，類型，目前定義了eMBB，uRLLC，MIoT三類SD(slice

Differentiator)

：3byte，細分同個SST中的切片實例，例如租戶信息每個用戶最多支持8個切片的業務HUAWIHSEILIICTECONHSNEOMLICOOGNIEDSUCCOTO.,

LRTD.視頻

For

合作OTT

切片實例3切片實例n.

終端 . ....移動

終端 語音業務 切片實例2移動

終端 上網業務 切片實例1其他可能的應用場景：低抖動工業控制，公共災害告警，監控視頻，救護車醫療……數量多差異化定制多差異化定制多E2E隔離要求高Page13切片劃分建議：按業務分類，按垂直廠商形成實例一13HHIUSAILWICEOI

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14會話建立過程中的切片選擇AMFUPFNRFDN1DN2SMFNS

#1UPFNRFSMFUPFSMF1.PDUsessionEst.Req(S-NSSAI,DNN,

etc)3.SMFdiscovery(S-NSSAINSIID)4.PDUsessionEst.

Req5.PDUsession

Est.6b.PDUsessionEst.Rsp(S-NSSAI,DNN,

etc)6a.Sessioninfo(S-NSSAI)APP-A APP-B…NetworkSlicingSelection

Policy(NSSP)Default

rule-S-NSSAI

1NSSPrule

1App-AS-NSSAI

1NSSPrule

2App-BS-NSSAI

2NSSPrule

3…..NS

#2NS

#3會話管理不同切片的會話管理控制面隔離AMF和SMF解耦不同切片的會話管理用戶面隔離不同切片的UPF相互獨立會話不能在不同切片之間遷移NSSF2.NSIselection([NSIID],

NRF)overviewManagementArchitectureRANsupportingOpen

discussionHHIUSAILWICEOINTESCEHMNICOOLO14HHIUSAILWICEOI

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15ContentE2E切片overview5G

核心網切片（SA2）5G

切片管理（SA5）5G

RAN切片（RAN2/3）Open

discussionHHIUSAILWICEOINTESCEHMNICOOLO15Huawei

ConfidentialHUAWEI

TECHNOLOGIES

CO.,LTD. 16網絡切片管理SA5-研究概況Slice

designDesign

a

network

slice

to

meet

certain

network

characteristics

required

by

an

end-user

service

or

a

business

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

slicing

management

architectureSlice

orchestrationOrchestration

of

the

components

of

the

network

slice,

including

the

shared

slice

instance

management,

orchestration

of

slices

acrossmultipleoperators,

end-to-end

network

slice

orchestration

and

coordination

between

3GPP

and

non-3GPP

management

systemsSlice

automationApply

SON

concept

for

network

slicing

management,

including

slice

instance

automated

healing

and

optimizationSlicemanagement

andorchestrationSlice

designService Template LCMSlicemanagementFM/PMArchitectureSlice

orchestrationSlicesharingMulti-operatororchestrationE2EcoordinationSlice

automationAuto-healingAuto-optimizationoverviewManagementArchitectureRANsupportingOpen

discussionHuaweiConfidentialHUAWEITECH16HHIUSAILWICEOI

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17E2E網絡切片管理-SA5overviewManagementArchitectureRANsupportingOpen

discussionSlice

ProvisioningSliceDesign(Slice

Template)TenantCrossdomain

slice(multi-vendmanageror)VendorCapabilitySLA

informationNetworkSliceTemplate

DesignerNSMFNSSMFTN-NSSMFCN-NSSMFAN-NSSMFCustomized

Slice

template

and

agile

on-boardingSharingand/orisolationincloud

infrastructureSupporting

Vertical

Requirements

bymanagement

InterfaceMappingofservice

modelandnetwork

resourcemodelClosed-loopautomation

ofslice

subnetSlicedesignandtemplate->Multipleservices,slicetemplate

assemblyServicebasedmanagementinterface

(Service,Network)->Providingprogramming

API

capabilityClosed-loop

automation->Automatedadjustmentaccordingtoservices

experienceHHIUSAILWICEOINTESCEHMNICOOLO17Page

18HUAWEITECHNOLOGIES

Co.,

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ConfidentialSSSE2E

OrchestratorE2E

切片業務流設計和規劃5G

RANTransportCore5GRAN

DSMTransport

DSMCN

DSMSlice

DesignOfferingDesignSlice

AssuranceOffering

OrderSlice

ProvisionE2E

SliceAggregation①②③④IF-MSM-RANIF-MSM-CNIF-BSMIF-TRANS⑤Slice

Monitor①查詢域切片定義模板到E2E

Orchestrator（包括域切片類型和對應的SLA范圍）;②

將單域切片定義集成到E2E切片定義中;③

導入E2E切片定義模板;④

設計特定的E2E切片滿足具有拖放功能GUI的要求（包括初始延遲配額和調整優先級）上，將模板保存到E2E編排器中;⑤

向BSS層導入新的切片類型，支持Offering

Design;Designnetworkslicesaccordingtothe

networkcapabilitiesandSLA

requirements.Application/Business

LayeroverviewManagementArchitectureRANsupportingOpen

discussionPage18HUAWEITECHNOLOGIESCo.18Page

19HUAWEITECHNOLOGIES

Co.,

Ltd. HUAWEI

ConfidentialE2E

切片業務流

之

切片部署overviewManagementArchitectureRANsupportingOpen

discussion①

BSS觸發NSI的生成②

跨域切片管理器定義E2E切片：根據服務類型選擇Slice模板基于位置和切片模板的切片拓撲設計切片功能根據SLA和網絡功能進行定義將SLA分解到不同的域，并與相關域進行協商③

跨域切片管理器從每個MBB

/

FBB域切片管理訂閱域KPI;

每個MBB

/

FBB域切片管理器報告部署進度。④

RAN

/傳輸/核心網功能和資源編排Page19HUAWEITECHNOLOGIESCo.19HHIUSAILWICEOI

NTESCEHMNICOOLONDGUIECSTCOOR.,

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20ContentE2E切片overview5G

核心網切片（SA2）5G

切片管理（SA5）5G

RAN切片（RAN）Open

discussionHHIUSAILWICEOINTESCEHMNICOOLO20Page

21HUAWEITECHNOLOGIESCo.,

Ltd.HUAWEI

Confidential基于切片的RAN

NumerologyHardRadio

SlicingSoftRadio

SlicingElasticcapacityforeachsliceto

enhanceusageofnetwork

resourceFlexiblesub-carrier

bandwidthFlexibleair

interfaceFlexiblesub-carrierbandwidth,CPandTTI

designedtomeetdifferentrequirementof

servicesSmart

HomeAR/VRV2XTimeFrequencyFlexible

TTIFrequencyTIMETimeIndependentResourceSharedResource1)eMBB,uRLLC,

Idle2)eMBBidle,uRLLC

CongestionSchedulemoreresourcefor

platooning3)eMBBanduRLLC

CongestionAdjusttheallocationproportionoverviewManagementArchitectureRANsupportingOpen

discussionPage21HUAWEITECHNOLOGIESCo.21HUUAWWEEIITECHNOOLLOOGIESCCoO..,,LtTdD.

.HUAHWuEaIwCeoinCfoidnefindteianltialGenerally

principlesAnetworkslicealwaysconsistsofaRANpartandaCN

partNetworkcanrealisethedifferentnetworkslicesbyschedulingandalsobyprovidingdifferentL1/L2

configurationsWhile

the

network

can

support

large

number

of

slices

(hundreds),

the

UE

need

not

support

more

than

8slicessimultaneously技術點當前R15標準進展后續計劃RAN感知切片RAN2同意基于會話粒度的切片感知，RAN將根據切片的配置信息，根據實現滿足UE支持的切片SLA需求N/AAMF選擇RAN2同意Msg5攜帶切片信息，具體的消息內容待討論RAN3同意NG口交互切片信息Rel-15:

RAN2定義具體的切片信息(Msg3和Msg5)切片感知的切換RAN3同意相鄰基站間交互切片信息，用于目的基站選擇，從而啟動Xn、NG切換流程Rel-15：RAN3定義Xn/NG切換信令中攜帶具體的切片信令和原因QoS保障RAN2同意新定義SDAP層支持切片內QoS

Flow到DRB映射Rel-15:

RAN2定義具體的SDAP格式切片感知的空閑態/inactiveUE接入控制：

基于Category

ID小區重選：沿用LTE方案，其他方案待定Rel-15：RAN2接入控制/小區重選考慮切片信息RAN

part

切片選擇RAN基于實現，對標準無影響N/A切片區域化部署SA2/RAN同意UE注冊區域內支持切片不變Rel-16：更小粒度的切片部署RAN

part

切片ID后續討論Rel-16：引入RAN

part

ID用于RAN處理Page

22overviewManagementArchitectureRANsupportingOpen

discussionRAN切片R15HUUAWWEEII22HUUAWWEEIITECHNOOLLOOGIESCCoO..,,LtTdD.

.HUAHWuEaIwCeoinCfoidnefindteianltialSupportofNetworkSlicingreliesontheprinciplethattraffic

fordifferentslicesishandledbydifferentPDU

sessions.DifferentDRBsareconfiguredfordifferent

slicesNetworkcanrealisethedifferentnetworkslicesbyschedulingandalsobyprovidingdifferentL1/L2

configurationseMBBslicesareconfiguredwithfullL2protocolstackand

allfunctionalitiesuRLLCslicesarewithpacketduplicationinL2andshort

TTInumerology

mappingmMTCslicesmaynotbeconfiguredwithPDCP

layerCustomizedprotocolstacksandproceduresadaptingto

differentslices

featuresPage

23RAN切片-QoS保障overviewManagementArchitectureRANsupportingOpen

discussion–

Slice#2UPFRadio NG-U

NG-RAN

5GC

UE NB UPF-

Slice#1PDU

Session

–

Slice#1Radio

Bearer NG-U

TunnelQoS

FlowQoS

FlowRadio

BearerQoS

FlowPDU

Session

–

Slice#2Radio

BearerNG-U

TunnelQoS

FlowP-GWS-GWPeerEntityUEeNBEPS

BearerRadio

BearerS1

BearerEnd-to-end

ServiceExternal

BearerRadioS5/S8S1

E-UTRAN

EPC

InternetGiE-RABS5/S8

BearerLTE

QoS5G

QoSQoSfeaturesin

NRQoSfeaturein

LTE1EndtoEnd:QoSflow

granularityUuinterface:DRB

granularityEndtoEnd:EPS

bearerUuinterface:DRB

granularity2M:1QoSflowtoDRB

mapping1:1EPSbearertoDRB

mapping3Support

both

AS

reflective

QoS

andNASreflective

QoSN/A4NewSDAP

layerN/AHUUAWWEEII23Page

24HUAWEITECHNOLOGIES

Co.,

Ltd. HUAWEI

Confidential切片定制：差異化協議棧配置和功能部署Slicespecificprotocolstacksandalgorithmsachieveondemandsliceandreduce

TTMSlicespecificprotocol

stacksmMTCeMBBuRLLCRLCMACPHYRRCPDCPRLCMACPHYRRCmMTCuRLLCeMBBRRUCNRFRFRF

CP

UP RRC

1PDCP

2PDCP

3RLC12Optionalhead

compressionFlexible

deployment3Optional

mobility

functionreducefunctioncomponentsthattheslicesneedn’t,reducewasteof

resourcesMinimumfunctionofoneslice,onlykeepnecessarycomponents,reducefailure

probabilitySimplifyOMof

SliceRegional

DCLocalDCCentralOfficeRemoteSiteRFLocationSlice#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-RAURFSliceondemand

deploymentSlice

#1(eMBB) Slice

#2(mMTC)Note：ACC：AccessConvergenceControlplane，ACU：AccessConvergence

Userplane,RAC：Radio

Access

Controlplane, RAU：RadioAccess

Userplane.overviewManagementArchitectureRANsupportingOpen

discussionPage24HUAWEITECHNOLOGIESCo.24HUHAIWSIELIICTOECNHSNEOMLICOOGNIEDSUCCOT.O,

LRTD.Page

25版本版本狀態支持功能19BPlanning定位:支撐E2E切片測試支持E2E切片：RAN切片對接NGC切片RAN切片與傳輸切片對接切片SLA：支持KPI

SLA監控支持eMBB業務類型的切片低時延切片切片運維：1. RAN切片配置和可視（OSS）20ATobe

Planned支持E2E切片：單UE支持多切片簡單切片移動性切片SLA：空口體驗速率保障：切片級SLA差異化調度空口資源保障：PRB資源硬隔離低時延切片增強閉環管控：RAN內SLA的閉環管控版本思考及研討HUHAIWSIELIICTOECNHSNEOMLICOOG25Copyright?2015HuaweiTechnologiesCo.，Ltd.AllRights

Reserved.Theinformationinthisdocumentmaycontainpredictivestatementsincluding，withoutlimitation，statementsregardingthefuturefinancialandoperatingresults，futureproductportfolio，newtechnology，etc.Thereareanumberoffactorsthatcouldcauseactualresultsanddevelopmentstodiffermateriallyfromthoseexpressedorimpliedinthepredictivestatements.Therefore，suchinformationisprovidedforreferencepurposeonlyand

constitutesneitheranoffernor

an

acceptance.Huaweimaychangetheinformationatanytimewithout

notice.Copyright?2015HuaweiTechnolo26Page

27HUAWEITECHNOLOGIESCo.,

Ltd.HUAWEI

Confidential華為/BMW/CMCC《可保證的端到端網絡切片服務白皮書》Networkslicingisthecollectionofasetoftechnologiestocreatespecialized,dedicatedlogicalnetworksasaservice(NaaS)insupportofnetworkservicedifferentiationandmeetingthediversifiedrequirementsfromverticalindustries.Throughflexibleandcustomizeddesignoffunctions,isolationmechanisms,andO&Mtools,networkslicingiscapabletoprovidelogicaldedicatednetworksuponacommoninfrastructure.網絡切片是針對業務差異化、多租戶需求提供的一類解決方案技術的統稱，通過功能、性能、隔離、運維等多方面的靈活設計，使得運營商能夠基于垂直行業的需求創建定制化的網絡。Thenetworkslicingconceptconsistsof3layers:1)ServiceInstanceLayer,2)NetworkSliceInstance

Layer,and3)Resource

layer.網絡切片概念由3層組成：1）服務實例層，2）網絡層實例層，3）資源層。DescriptionofNetworkSlicingConceptbyNGMN

AllianceNetworkSlice:Alogicalnetworkthatprovidesspecificnetworkcapabilitiesandnetwork

characteristics.網絡切片：提供特定網絡功能和網絡特性的邏輯網絡NetworkSliceinstance:AsetofNetworkFunctioninstancesandtherequiredresources(e.g.

compute,storageandnetworkingresources)whichformadeployedNetwork

Slice.3GPPTS23.501SystemArchitectureforthe5G

SystemE2E網絡切片定義overviewManagementArchitectureRANsupportingOpen

discussionPage27HUAWEITECHNOLOGIESCo.27空口時延：占比E2E時延約50%，達標良好體驗要求空口時延<50mseNBUE3.00

3.183.724.204.25

4.53

4.76

4.98

5.106.43

6.86

7.107.10南昌北京石…杭州太原福州武漢重慶呼…長春吉…鄭州包頭eNB->SGW平均時延0ms（華北）~20ms（華東）傳輸時延3~7ms空口時延要求<50ms正常情況：57.2560.0958.4841.1852.1129.25

3.6542.6545.2546.8148.3848.0229.7444.1434.1812.73215.7187.25

18.9529.53

28.2717.77931.4530.7

36.8636.74長…吉…哈…北…石…鄭…杭…南…上…武…南…福…廣…重…GW->南京/上海服務器時延對比南京服務器東北 北華東33%8%20~40ms5%惡化情況：>200ms2%空口容量20%%180%%

1142%%1168%%

2220%%2246%%3208%%32%0-1070-80140-150210-220280-290350-360420-430500-510600-6103346%% 平均用戶數

vs

卡頓

占比

平均值項:一周嚴重卡頓局…64%%卡頓率<7%0200400600-120-112-105-98-93-88-83-78-73-68-62-57RSRP

vs

時延0200400-20-11-7-31591317212535600

SINR

vs

時延用戶>200，卡頓率不達標中 南 西負載>70%，卡頓率不達標RSRP<-100dBm，體驗惡化

RSRP<-110dBm，時延陡增

良好：E2E時延<100msSINR<-7dB，時延陡增SINR<-7dB，體驗惡化4%2%0%12%10%8%6%0-210-1220-2230-3240-4250-5260-6270-7280-8290-92下行PRB利用率

vs

卡

平均值項:一周嚴重卡頓局…

頓占比 卡頓率<7%服務器王者榮耀服務器部署在南京和上海~

60ms（東北）核心網時延

~4 S/PGW通常E2E時延為110ms，

空口時延占比約50%；時延惡化時>200ms，主要為空口的額外貢獻空口時延：占比E2E時延約50%，達標良好體驗要求空口時延<28示例：卡頓率=(0*1000+0.2*10+0.5*2+0.7*10+1*2)/(1000+10+2+10+2)=1.17%網絡擴容指標：從傳統資源利用率（RRC、PRB及忙時流量）到基站卡頓率20%25%卡頓率

=∑

數量*權重/總包量

卡頓率0% 5% 10% 15%無卡頓 輕微卡頓 一般卡頓 較嚴重卡頓嚴重卡頓卡頓局點聯通與騰訊聯合定義王者榮耀游戲體驗KQI，

E2E業務時延體驗<150ms，卡頓率<5%

成為業務體驗的關鍵卡頓定義：騰訊對每局所有包的RTT進行抽樣，所得結果越高，越卡頓，高于15%計為嚴重卡頓局。新網絡評估指標：卡頓率基站比例>7%集團對省份嚴重卡頓基站占比給予預警：省級每次上榜1張紅牌市區縣每上榜省份1張黃牌5張黃牌累計

1張紅牌嚴重卡頓基站定義

=（周局數>70

且

周卡頓局數比例>7%）的小區數

/

全省小區數嚴重卡頓基站占比=

嚴重卡頓基站數/該區域總基站數集團擴容門限三個條件同時滿足數據熱點、高價值業務場景、人口密集場景結合2I2C用戶轉網，重點考慮2I2C高業務區域當前擴容標準：RRC用戶數、PRB利用率、忙時流量時延區間(ms)權重包量(示例)<10001000100～2000.210200～3000.52300～4600.710460+12【騰訊王卡】基站卡頓率通報0215-0221省市嚴重卡頓基站占比嚴重卡頓基站數環比環比地市TOP3甘肅8.50%16206.9pp臨夏定西酒泉21.84%9.03%8.93%河北4.12%36923.67pp邯鄲邢臺唐山35.38%0.74%0.73%四川2.03%1553-1.36pp達州巴中廣安10.35%4.68%3.81%站型帶寬RRC連接數小區PDCP流量PRB利用率宏站20M>50>8GB>50%室分10M>20>3.5GB>50%20M>30>7GB>50%示例：卡頓率=(0*1000+0.2*10+0.5*2+0.29王者榮耀：良好用戶體驗要求E2E時延小于100ms業務流TCPUDP作用玩家信息刷新，圖片下載對戰游戲指令流量要求~3kbps~65kbps時延要求不敏感敏感良好一般卡頓作為丟包<100ms<200ms<300ms<460msUDP信令時延要求王者榮耀業務架構加權統計為卡頓王者榮耀：良好用戶體驗要求E2E時延小于100ms業務流TC30新手游要求E2E時延小于20~50ms，現有4G網絡架構難以滿足最小20ms ~6ms最小20ms18~19年對戰游戲良好體驗要求50ms，20+年游戲要求20ms2016~2017粗粒度操控基礎體驗：<200ms良好體驗：<100ms2020+沉浸體驗，無眩暈<20ms

現有架構，商用場景難以滿足E2E

50ms時延要求 游戲商下沉服務器2018~2019精準操控基礎體驗：<100ms良好體驗：<50ms服務器

P-GWeNB UE策略游戲對戰游戲準AR/VR實時游戲本地時延小于20ms僅9.8%比例小于20ms新手游要求E2E時延小于20~50ms，現有4G網絡架構難以31空口時延要求小于50ms，E2E占比約50%，是影響用戶體驗關鍵因素服務器20~60ms~6msP-GWeNBUE說明：王者榮耀服務器部署在南京和上海空口時延要求<50ms，占E2E時延約50%東北時延最大：~60ms華東時延最小：~20ms100ms20~200ms空口時延要求小于50ms，E2E占比約50%，是影響用戶體驗32負載、覆蓋和干擾是造成空口時延過大的主要因素容量覆蓋質差上行干擾其他負載、覆蓋和干擾是造成手游卡頓主要因素

高負載：37.6%，弱覆蓋：29.0%，干擾：16.1%王者榮耀卡頓原因分布5.38%17.20%37.63%10.75%29.03%0%45%87%75%91%93%94%94%95%100%0.00%10%

20.00%60.00%100.00%80.00%120.00%40.00%100008000700060005000400030002000102030405060708090100>100樣本數空口時延（ms）空口平均時延49.3ms，13.2%比例超過50ms空口時延分布說明：數據采用某C城市負載、覆蓋和干擾是造成空口時延過大的主要因素容量覆蓋質差33采樣范圍：對安卓客戶端對局進行信息采集，包括：時延、信號格數、終端IMEI、經緯度、ENBID、CELLID采集方式：信號格數、經緯度、ENBID、CELLID在每局游戲開始前采集一次時延抽樣：在游戲中每5s采集一次（與游戲顯示2s不一致）

卡頓定義：騰訊對每局所有包的RTT延遲進行抽樣，根據落入以下<100,100-200,200-300,300-460，>460

5個區間的采樣點數進行計算，計算公式為：每個區間包的數量*權重/總包量，所得結果越高，越卡頓，高于15%計為嚴重卡頓局。小區卡頓占比=一天內卡頓局數/一天內總局數一周內嚴重卡頓小區占比：(一周局數>70，且高卡頓局比例>7%)的小區數/全省小區數條件：剔除7天局數都<5的小區時間粒度：每周一次集團通報中的定義王者榮耀卡頓定義游戲體驗優化方向主要集中在