Network Slice Selection Function on M-CORD

JAVIER JOSE D IAZ R IVERA

DEPARTMENT OF COMPUTER ENGINEERING

JE JU NATIONAL UNIVERS ITY

Contents Introduction◦  NetworkSlicing◦  5GArchitecture

 SystemOverview◦  ComponentDescription

 ScenarioDescription

 TestandResults

Introduction

Source:EuropeanCommission-FutureConnectivitySystems

NetworkSlicing OneofthemultiplebenefitsthatNFVbringsintothetableisenablingNetworkSlicingbyallowingaphysicalinfrastructuretobeseparatedintomultiplevirtualnetworksthatcansupportmultipleservices

Source:Ericsson

DN

3GPPTS23.501–5GArchitecture

UE RAN UPF

AMF SMF PCF AF

NSSF AUSF UDM

5GArchitecture

SystemOverviewCORDPlatform(M-CORD)

SetofopensourceVNF

OAI-EPC

XOS

OpenStack ONOS

OAI-SIM

UE

UE

UE eNodeB

NSSFvHSS

vMME

vSPGWCvSPGWCvSPGWC

vSPGWCvSPGWCvSPGWU

s1-net

slice-net

s11-net

s6-net

spgw-net

GTP-TUN

eNB NSSF EPC

Synchronizer

ComponentsDescription EPCandeNodeBVNFareOpen-AirInterfaceprojects.DevelopedbyEurecom.

S1-U

UE-eNB

vBBU

OAISIM

S1

OpenAirInterfaceeNodeB

vMME

vHSS

vSPGWC vSPWGU

INTERN

ET

DataPlaneS6

S11 S5

OpenAirInterfaceCoreNetwork

ScenarioDescription

MMENSSF

SliceDB

SliceRequestMessage

id UE SL-DIFF

SliceTableID SPGW

SPGWTable

ServiceId Services

SERVICESTable

SliceSelection

SliceRequestMessageisaRPCthatincludestheUEIMSIAndreturnsanSPGW-IDasaString

NSSFINSTANCE

TestandResults

UE-eNB S1 vMME

vHSS

vSPGWC

vSPGWC

vSPWGU

vSPWGU

INTERN

ET

S6

S11

S5

S5

NSSF

GTPTunnel

WEBSLICE

VIDEOSLICE

GTPTunnel

OAISIM

TestandResultsXOSviewofServices

•  OAISM:RepresentstheeNodeB/UE•  NSSF:RepresentstheNetworkSlice•  SelectionFunction•  VMME,VHSS,VSPGWCandVSPGWU

arealsorepresentedbytheirownservices

TheservicesthatarenotconnectedarepartofMCORDdeployment

TestandResults

VNFInstancesinOpenStack

TestsandResultsTheNSSFVNFisalwayslisteningtovMMErequestsandprovidessomeinformationaboutthecurrentsliceseverytimeaconnectionisestablished.

WhenaUEconnectseachoftheirIMSIisstoredalongwiththeslicethatisserving.ServicedifferentiationisdonebytakingthelastdigitoftheIMSI

IperfTestsTheemulatedeNodeBiscausingabottleneckfortheE2Econnection

RunningdirectlyfromtheEPC

TestandResults Youtubevideoofthewholescenario:◦  https://youtu.be/xFIybs-Y5G8

References  3GPPTS23.501V15.0.0TechnicalSpecificationGroupServicesandSystemAspects;SystemArchitectureforthe5GSystem;Release15,Dec2017.

 Mobile-CentralOfficeRearchitectedasaDatacenter(M-CORD)v4.1,[online],Available:https://guide.opencord.org/cord-4.1/(Retrieved,October22,2018)

 Open-AirInterfaceProject,[online],Available:https://gitlab.eurecom.fr/oai/openairinterface5g/wikis/home(Retrieved,October22,2018)

 Open-AirInterfaceSystemEmulation,[online],Available:https://gitlab.eurecom.fr/oai/openairinterface5g/wikis/OpenAirLTEEmulation(Retrieved,October22,2018)

 SpecialThankstoWei-YuChen:NationalChiaoTungUniversity

 MCORDoai-scenariohttps://github.com/aweimeow/oai_scenario

Thank you