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Testing & Monitoring Challenges of Next Generation Mobile Broadband

LTE Network

Testing & Monitoring Challenges of Next Generation Mobile Broadband

LTE Network

Vikas AroraChief Technology Officer

2© 2010 EXFO Inc. All rights reserved.

LTE Deployments Taking Off…

› 15 commercial networks were launched in 2010 ; 128 LTE commitments worldwide › 10X increase in throughput per subscriber (2008-14)› Mobile broadband services revenues to go to $186.7B by 2014 (09-14 CAGR 25%)› End user quality expectations going up!!

Infonetics 2010

LTE Worldwide Subscriber Forecast

02040

6080

100120

140160180

2009 2010 2011 2012 2013 2014

Mil

lio

ns

>164.4M in 2014

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Delivering and Managing Network & Service Quality: Key Pieces of the Puzzle

Device

Deliver rapid trouble identification, segmentation, isolation and SLA assurance

Applications& Services

Network(IMS, EPC, Ethernet,

Optical)

Data CentreComplex

Device

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Example: LTE Network Monitoring & Troubleshooting

Separated transfer paths for user plane and control plane

• LTE Signaling • IMS sessions – RCS, Presence, Authentication, Call KPI’s• Session quality, Video quality, Content quality etc.

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•EtherSAM Y.1564 for Turn-up Frame loss, delay, throughput, burstability, frame delay variation

• Ethernet OAM standards (802.1ag, and Y.1731)

Example: Ethernet Mobile Backhaul Turn-up through Operational Monitoring

24x7 In-Service Monitoring(Availability, Loss, Delay, Delay Variation

Remote IP Test Head

Cell Site MTSO

OAM,Correlation

AggregationPresentation

CSR

Ethernet BackhaulNetwork

On-Demand Service Performance Test(In-Service or Out-of-Service)

OSSStandard

APIs

24x7 In-Service Monitoring(Availability, Loss, Delay, Delay Variation

Remote IP Test Head

Cell Site MTSO

OAM,Correlation

AggregationPresentation

CSR

Ethernet BackhaulNetwork

On-Demand Service Performance Test(In-Service or Out-of-Service)

OSSStandard

APIs

6© 2010 EXFO Inc. All rights reserved.

LTE Testing & Service Assurance Lifecycle

Conformance/Load TestingConformance/Load Testing› Test the functionality, interfaces› IMS Core performance, scalability› Interoperability MME/eNB, UEs› Test the load behavior before the

real load

24/7 Monitoring24/7 Monitoring

› End-user experience› SLA screening› Service usage, RCS, IMS monitoring› Network element/UE problems› Fraud detection, billing verifications

Install/Burn-in/TroubleshootInstall/Burn-in/Troubleshoot

› Physical layer characterization› Ethernet Testing & Troubleshooting› IP transmission tests› Connectivity to eNB› Delays/jitters in installation phases

In/Out-Service TroubleshootIn/Out-Service Troubleshoot› Locate problems› Find the cause of the problems quickly› Access to the details required› From mass data to the root cause

IMS EPC

Ethernet

VoIPVideoData

RCS

Optical

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› LTE networks are gaining momentum, they require› A highly efficient turn-up testing, troubleshooting, performance

monitoring & interoperability testing

› In order to ensure performance, service delivery and quality of experience (QoE), complete visibility and access to key interfaces is essential

Summary

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