1 © 2010 exfo inc. all rights reserved. testing & monitoring challenges of next generation...
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1© 2010 EXFO Inc. All rights reserved.
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
3© 2010 EXFO Inc. All rights reserved.
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
4© 2010 EXFO Inc. All rights reserved.
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.
5© 2010 EXFO Inc. All rights reserved.
•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
7© 2010 EXFO Inc. All rights reserved. 7© 2010 EXFO Inc. All rights reserved.
› 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