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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
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