FU QIAO

ZHANG XIAO GUANG

YU ZHI QIANG

5GC NFV Integration practice

Based on OpenStack

Beijing Info Port 5G core network site connection distribution

•  Standalone Networking (SA) architecture

•  NFV architect based on Opentack

•  Centralized networking

•  Self system integration practice with AUTO tools

China Mobile 5GC are depolyed in BeiJing central point, and complete connection with five provinces’s wireless stations through transmission system

Bei Jing Info Port

SHANG HAI

（NOKIA）

SU ZHOU （Ericsson）

HANG ZHOU

（HUA WEI）

WU HAN （DA TANG）

GUANG ZHOU（ZT

E）

transimission

Wirelesssta-ons

Wirelesssta-ons

Wirelesssta-ons

Features 5GCKeyPoint

3

5G System Logical Architect

IMS

EPC

gNB 5G Access eNB LTE access

5GC

Terminal UE

MME

PGW-C/SMF

NSSF

NEF

NRF

AUSF Nudm

Npcf

Nsmf

Nnssf

Nausf

Nnrf

Nnef

Namf S5-U

S5-C

S1-U S1-MME

Rx/Gx

S6a/SLg

N4

Gm

SGW AMF

IBCF Mx

Sh/Cx SBC/P-CSCF Mw Mg/Mj

N2

N1

N3

N26

NMS

OMC

Supporting System

Cx/Sh/Zh/S6a/SLh

MGCF

AS I/S-CSCF ISC

SMSF Nsmsf

NWDAF Nnwdaf

AF

Naf

Bussiness

UDR Nudr

BOSS Nchf

HTTP Proxy

UDSF Nudsf

BSF Nbsf

Rx

Gx PGW

DRA PCRF/PCF

HSS/UDM

EIR Neir

PGW-U/UPF SGi

bearernetwork

Accessnetwork

The5GCcorenetworkismainlycomposedofnetworkfunc-onssuchasAMF,SMF,UPF,NSSF,NRF,NEF,andSMSF,aswellaspolicycontrolsystemsanduserdatasystems.

4

5G Physical Network Architecture

PTN

CMNET

IP private Net

ChinaMobile5Gscaletrialnetworkcorenetwork(informa-onport)hardwareresourcepoolproject

Internet

5

5G core network function based on NFV system structure

5Gmanagementandorchestra-onsystem

Virtualizednetworkfunc-on

VirtualizednetworkFunc-onmanagement

VirtualizedPlaMorm VirtualizedResourcesmanagement

Networking Compute Storage

PhysicalResourcemanagement

The5Gnetworkelementactsasavirtualizednetworkelement(VNF)inthefigureandisdeployedonthevirtualplaMorm(hypervisor),independentofthehardware.5Gvirtualizednetworkfunc-onconsistsofoneorseveralvirtualmachines(VMs),whichisputtogethertoprovide5Gcorenetworkfunc-ons.

6

5GC self-integration

BasedontheETSI-basedNFVarchitecture,theen-reintegra-onprocessincludesplanninganddesign,hardwareintegra-on,virtualiza-onlayerdeploymentanddebug,MANOdeploymentanddebug,VNFdeploymentanddebug,andinterconnetc-onwithperipheralsystems

Compute Storage etwork

VNFMs

Hypervisor VIM（include PIM） Virtualization

Layer

NFV Orchestration(NFVO+)

Hardware Layer

VNFs

EMS

Peripheral System MANO

1

2

4

2

3

4

3 3 5

4

1, hardware integration: hardware design, shelves, configuration, joint adjustment, etc.

2. Deploy virtual layer software, complete the integration with hardware and management of the underlying resources.

3, deploy NFVO+, VNFM software, complete NFVO+ and VNFM, virtual layer, peripheral system integration

4, deploy VNF (including EMS) software, complete the integration with the virtual layer, VNFM

5、integra3onwithperipheralsystems,finishendtoendsystem,from5GcorenetworktoTransmissionlinktoWirelessbasesta3on

7

Similar to traditional telecom equipment construction, NFV integration includes steps of project planning, resource preparation, deployment and debugging, online, and maintenance transfer.

NFV integration process and steps

NFV Hardware integration •  Hardware integration work, hardware deployment,

configuration, and debugging , integration with external network

•  on-line and maintenance transfer: verification platform is stable, with software deployment capability

Project planning and preparation •  Collect project requirements, develop integration

plans, and project implementation plans •  Hardware, soft set equipment arrives •  integration people resource ready

NFV software integration •  Building Virtualization and MANO Platform: Deploying

and Coordinating Testing of Virtual Layer, NFVO+, and VNFM

•  VNF deployment joint debugging: deploying VNF soft set, joint testing with VNFM, OSS,signaling , billing, and other peripheral systems, VNF end-to-end service testing

Work Process Work content

1、Project planning

Integration

2. Project resource preparation

3.1 deployment and joint testing

4.1 initial acceptance

5.1 online and maintenance transfer

6. Final acceptance

3.2 deployment and joint testing

4.2 initial acceptance

5.2 online and maintenance transfer

Software

Intergration H

areware

Integration

Hardware arrive

8

Aggregate analysis of integration issues

A total of 50+ integration issues were found, which were classified into the following types. Among them, problems such as adaption and adjustment of different layer are the key to integration. strengthen the review ²  Design： Divided into design to be refined, etc., need to improve the design plan ²  Adaption and debugging：The most problems, involving products issues, different

vendor adaption, human error, etc., need to strengthen pre-integration testing, automated configuration, automated inspection.

²  Resource preparation: related to the data center room environment, current network resource allocation, equipment issues, etc., need to be prepared as soon as possible, and coordination about related resources.

Integration adaption and debugging

Resource Preparations Design

Desingplan

Desingrefined

adap-on Productbugs

Humanerrors

environment

Hardwareissues

ResourceRequest

Others

9

Integration Key Point

Integration

1. Project planning and design

2.Project Resource Preparation

3.Depolyment and Debugging

4.Initial Test

5.Online and operation transfer

6.Final test

Key point 1： Identify requirements early and determine planning and design

•  Communicatetoconfirmtheinternalandexternalnetworkintercommunica-on

needsoftheresourcepool,andformulateasolu-onnetworkplan

•  Accordingtothedesign,preparethefollow-upimplementa-onplanand

configura-onscriptinadvance,andreviewtheconfigura-onscript(conformto

theplanwithouterroromission)

•  Determinetheinterconnec-onschemeandparameterdetailsoftheexis-ng

networkequipment.

Key point 2：Resource request •  Reauest about networkIPaddressesandotherresourcesshouldbesubmit

immediatelyaXertheplanwasfinalized

•  TheinternalVLANandtheprivatenetworkIPaddressareplannedandallocatedaXer

therequirementsareclearlydefined,whichisconvenientforthesoXwarevendorsto

refinethedesigninadvance.

This 5GC scale test have several key experiences in the integration as follows:

10

Integration Key Point

集成

1. 项目规划设计

2.项目资源准备

3.部署及联调测试

4.初验

5.割接上线及交维

6.终验

Key point 4：network connection check •  AXerthehardwareandconnec-onisready,thefull-scalenetworkconnec-vityis

automa-callycheckedtopreventthesubsequentsoXwareinstalla-onanddeploymentfrombeingreworkedduetonetworkconnec-vityissues.

Key point 3：Hardware Preparation •  Serverbasicconfigura-onneedtoautomatedbatchconfigura-on/checking,shortening

hardintegra-on-me •  Theserverfirmwareversion(BMC,BIOS)shouldbepreparedaccordingtotheproject

requirementsbeforeleavingthefactory.Itisrecommendedtoincreasethestandardiza-ontes-ngoftheserver;

Key point 5：adaption about different vendors Duringtheintegra-onprocessofdifferentvendors'devicesandsystems,moreadapta-onproblemsoccur.Inthecurrentnetworkconstruc-on,itisrecommendedtoclarifythematchingofeachcomponent.AXerconfirmingthespecifica-onrequirementsandtheversionofeachcomponent,performthefull-scalesimula-onverifica-oninthelaboratorytoeliminatetheintegra-onproblemandreducetheintegra-onissuesinproduc-onsite.

Key point 5： alternative plan Intheprocessofon-siteimplementa-on,thealterna-vesineachstageshouldbepreparedinadvancetoensuretheconstruc-onperiod.

This 5GC scale test have several key experiences in the integration as follows:

Thank You