Network Slicing

BuildingNextGenerationNetworks

GCF5GWorkshopforMENANovember2018

2

The Future Network: “One slice doesn’t fit all”

SmartCityManagement

PublicFacilitiesmonitoring

EnvironmentMonitoring

PollutionMonitoring

Carparkingsystem

Real-timeSurveillanceSystem

Smartgrid SmartGrid

SmartMeter

SmartSensor

MobileCommunication

IndustrialAutomation

Real-timeSurveillanceSystem

SmartMeter

Everyone Connected

Everything Connected

Different QoS, SLA, Security, Scale,…

3

ResourceLayer

NetworkSliceInstancelayer

ServiceInstancelayer

Alogicalnetworkthatprovidesspecificnetworkcapabilitiesandnetworkcharacteristics.

Service1 Service2 Service3 Service4 Service5

Slice1 Slice2 Slice3 Slice4

sub-slice1sub-slice2

sub-slice3

sub-slice4

sub-slice5 sub-slice6

l Onesliceprovidesoneormoreservices

l Onesliceiscomposedbyoneormultiplesub-sliceswhichcanbeCN,RANorBN

l Twoslicescanshareoneormultiplesub-slices

3GPP defines Network Slicing in a general way

4

Release14(TR) Release15(Phase1) Release16(Phase2) 5GEvolution

Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

2016 2017 2018 2019

Q1 Q2 Q3 Q4

2020

Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4

2021

R15-Stage1

Completethedesignofmanagementinterfaces/processesofnetworkslicing

R15-Stage2 R15-Stage3

CompletethestandardizationofsliceroamingandfitsbusinessmodeinR16

Completethedesignofnetworkslicing’susecases,requirementsandarchitecture

Overallslicingstandards,focusingonRAN/CN

aspects

E2EbearernetworkincludingOTNandFlexE

Mgmt.andorchestrationofsliceresources,LCMof

virtualizedNEs/NSs

Generalarchitectureandoriginalrequirements

Multiple SDOs collaborate to standardize Network Slicing

5

ZTE provides an E2E Network Slicing Solution

MEC

vCN-U

vCDN

DU/CUCU

AAU

MEC

vCN-U

vCDN

CU

vCN-U vCN-C

EdgeDCAccessPoints CoreDC

E2E SliceOrchestrationandmanagementZTECloudStudio (NCO,NFVO,VNFM)

Design Deployment Monitoring Security

High-speedforwarding

eMBB

mMTC

uRLLC

eMBB

mMTC

uRLLC

Normalforwarding

ZTECommonCoreConverged,CloudNative,SBA

ZTEBNSolutionsFlexE,IP+Optical,SDN

ZTE5GRadioITBBU,SDR+,CloudRadio

6

CN/RAN BN SliceOperation

l DedicatedHW

l Rigidandclosed

VNFVNF VNF

Virtualization

l NFvirtualized

l Cloudifiedandelastic

HW&SWdecoupled

NFdecoupled

Multi-tieredDCs�heterogeneousresourcepool

Container

VNFC

VNFC

VNFC

VNFC

VNFC

VNFCAppcomponents

VNFC

VNFC

VNFC

SBA(Servicebasedarchitecture)

l Microservices-based,stateless,and

customizedon-demand

l FlexibledeploymentacrossDCs

VM BM

StandardAPI

StandardAPI

Datacomponents

Commoncomponents

From NFV to Cloud Native – 5G Common Core SBA

7

CN/RAN BN SliceOperation

5GAAU

5GAAU

5GAAU+DU

5GAAU+DU+CU

DU+CU

DU

CU/DUco-siteforlowlatency

AAU/DU/CUco-siteforultra-lowlatency

AAU/DUco-site

Remotesite Accesspoint EdgeDC

CU

CUmMTC:l Massiveconnectionsl Delayinsensitivel Sensitivetocost

eMBB:l Highbandwidthl Differentiatedrequirementsoflatency

uRLLC:l Lowlatencyl HAl Costinsensitive

From SDR to Cloud Radio – Cloud RAN and CUPS

8

CN/RAN BN SliceOperation

ModeIHighrequirementofisolationandcostinsensitive;Forremotemedicaltreatmentorindustrialautomation

ModeIIMediumrequirementofisolationandtheterminalaccessestomulti-NSssimultaneously;Fordrivingassistanceorin-vehicleentertainment

ModeIIILowrequirementofisolationandcostsensitive;Forvideosurveillance,mobilevideoorintelligentmeterage.

UPF

AMF SMF

UDMPCF

Remotemedicaltreatment

Mode I:Independent

CU

DU

Slice1

AAU

UPF

SMF

PCF

UPF

SMF

PCF

AMFUDM

Mode II:Part of C-plane NFs shared

In-VehicleEntertainment

Drivingassistance

Slice2 Slice3

CU

DU

AAU

UPF UPF

SMFPCF

AMFUDM

UPF

Mode III:All C-plane NFs shared

videosurveillance

Mobilevideo

Intelligentmeterage

DU

CU

Slice4 Slice5 Slice6

AAU

Sharingmode

Flexible resource sharing enables diverse scenarios

9

CN/RAN BN SliceOperation

DU5GAAU+DU+CU

5GAAU+DU

5GAAU

5GAAU+DU

NRT5GAAU+DU+CU

NRTCUDU

25GE/50GE/100GEFlexE

vCN-U

Fronthaul

Midhaul

Backhaul

DUvCN-U vCDN

N*10G/25G

Flexhaul TransportSolution

High-speedforwarding

eMBB

mMTC

uRLLC

eMBB

mMTC

uRLLC

l Ultra-highbandwidth

l Ultra-lowlatency

l Slicingon-demand

l Elasticscale-in/scale-out

Normalforwarding

CoreDCEdgeDCAccessPointvCN-CvCDN

A unified elastic bearer network to support flexible CN/RAN slicing

10

CN/RAN BN SliceOperation

vNET1

vNet

SDNO

vNetController

pNetController

Service-oriented‘soft-slice’

supportsE2Enetworking

GSO

‘hard-slice’withdifferentiatedSLAguaranteesservice

isolation

PhysicalNEsupportsVR/LR,enablingresourceslicing

andisolation

NFVO

vNET2

pNET

CU UPF AMFSMF

vNET3

ThehierarchicalSDNcontrollers

Elastic Networks built with SDN based forwarding plane and resource scheduling

11

CN/RAN BN SliceOperation

SliceOperation

SliceAssurance

SliceIsolation

SLA ModelDefinition

SliceDeployment

DevOpsWorkflow

SliceDesignSlicedesign,pre-deploymentandtesting

CreatingandChangingofslicesandsub-slices

Sliceresourceisolationandmanagementisolation

E2ESLAmodeldefinitionandsplitting

Sliceself-healingandself-optimization

B2CandB2B2C sliceoperationalmodel

Putting it all together: DevOps based Slice Management

12

CN/RAN BN SliceOperation

Unifieddesigncenter,unifiedinformationmodelforthewholenetwork,allowingnetwork-wiseinterconnection

NetworkService

NestedNS

VNF

VNFC

Netw

orkservicemodeldefinedby

ETSIstandard

NetworkSlice

SliceSubnet

NF

NFService

5Gnetw

orkslicemodel

PNF PNF

Alibraryofcertifiedcomponentsfornetwork,drag-and-dropediting,WYSIWYG

Multipledesigncapabilities

Richcertifiedcomponents

• Networkslicedesign• Serviceprocessdesign• Unifiedpolicydesign

Built-inautomatictestingtool,loadingtestingusecases,enablingautomatictesting

,, ,

,

,,

MQSMF DBUPF

LB UDMNSSF

SecAMF

TestVM

TEST

Simulatingactualenvironmentalparametersandconductingpre-deployment incloudtestingenvironment

Slicetemplate

AutomaticConfig. AMFUPF

NSSF PCF

UDM

Closed-loopDesign

Slice Design: Model-based, visual, automated

13

CN/RAN BN SliceOperation

CSMF NSSMF

NFVO/NCO

NSMF

RAN/BN/CNEMS

CustomerServiceOrder

l Themulti-layerorchestrationrealizesautomaticprovisioningofservicesandslices

l Supportthedeploymentofcross-domain&cross-DCslice

l Supportwholeprocessmodel-driven

AutomaticDeployment

NSMF

1

2 3

4

Decomposingthesliceinto1~Nsub-slices

SliceDeploymentRequest

Sub-sliceDeploymentRequest

NetworkServiceInstantiationRequest

NetworkactivationRequest

Parsingtheslicingrequestanddecomposingitintosub-slicingrequests

Sendingsub-slicedeploymentrequeststoNSSMF

Choosingtherightsub-sliceinstantiationsordeployments

Initiatingnetworkserviceconfigurationrequests

Translatingthesub-slicedeploymentrequestintonetworkservicerequests

NSSMF

ReportingNSMFthedeploymentresult

SendingserviceinstantiationrequeststoNFVO

Multi-Layer orchestration for automatic slice deployment

14

CN/RAN BN SliceOperation

SliceManagementIntelligence

l ThepolicyempoweredbyAIrealizestheself-generationandself-optimizationofpolicies

l ThedesignempoweredbyAIrealizestheself-learningandpredictionofslicemodels

l TheorchestrationempoweredbyAIrealizestheintelligentdispatchingofresourcesandoptimalconfigurations

l ThemonitoringempoweredbyAIrealizesself-optimizationofslicesandquickhealingonfaults

NetworkSlice

5GE2E NetworkSlices

UnifiedPolicyCenter

DesignCenter Orchestration&Management

Analysis&Monitoring

Artificial Intelligence to simplify slice management

15

CN/RAN BN SliceOperation

IndustryWideCooperationRequired

l Availabilityofterminals withrequiredcapabilities

l Endtoendtestingoftheslicingoperationincludingterminals

l Multi-vendorinteroperability

l Multi-networkinteroperability

Network Slice selection requires UE prticipation

NetworkSlice

5GE2E NetworkSlices

UserEquipment(UE)• Fixed• Smartphone• Sensors• Connecteddevices…

NSSAI(NetworkSliceSelectionAssistanceInformation)

16

CN/RAN BN SliceOperation

NetworkSlice NetworkSlice NetworkSlice

On-demanddesign

Automaticdeployment

Close-loopassurance

Securityisolation

Intelligentanalysis

NetworkSliceCapabilityExposurePlatform

SlicedNetworks

SliceOperation

SliceCustomer

NetworkSliceasaService(NSaaS)l Extendingfromthetraffic

operationof4Geratothesliceoperation of5Gera

l Networkasaservice flexiblyprovidesproprietarynetworkservicestoindustrycustomers

l Thesliceandservicecanbefurthercombinedtobeprovidedtotheendcustomerasawhole

SliceOperation

NSaaS opens up new business models for Industry verticals

17

Summary

TheindustryismovingfromNFVtoCloudNativenetwork

architectures,enablingE2ENetworkSlicing

TechnologyReadiness

ü 5GRAN:Unifiedframestructure,uRLLC,eMBB,mMTC,CloudRAN,CUPS

ü CoreNetwork:CloudNative,SBA,Statelessü BearerNetwork:SDN,FlexE,OTNbased

slicing

Operation/BusinessModelChanges

Ø DevOps(tools,organisation,training,processes)

Ø NSaaS toopenupnewbusinessopportunitieswithindustryverticals

Ø RethinkthetraditionalmodelsofMVNO,NetworkSharing,etc.

Thank You