Testing & Monitoring Challenges of Next Generation Mobile Broadband LTE Network Vikas Arora Chief Technology Officer © 2010 EXFO Inc. All rights reserved. 1 Millions LTE Deployments Taking Off… 180 160 140 120 100 80 60 40 20 0 2009 LTE Worldwide Subscriber Forecast >164.4M in 2014 2010 2011 2012 2013 2014 Infonetics 2010 › › › › 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!! © 2010 EXFO Inc. All rights reserved. 2 Delivering and Managing Network & Service Quality: Key Pieces of the Puzzle Network (IMS, EPC, Ethernet, Optical) Device Applications & Services Device Deliver rapid trouble identification, segmentation, isolation and SLA assurance © 2010 EXFO Inc. All rights reserved. 3 Example: LTE Network Monitoring & Troubleshooting • LTE Signaling • IMS sessions – RCS, Presence, Authentication, Call KPI’s • Session quality, Video quality, Content quality etc. Separated transfer paths for user plane and control plane © 2010 EXFO Inc. All rights reserved. 4 Example: Ethernet Mobile Backhaul Turn-up through Operational Monitoring Cell Site OAM, Correlation Aggregation Presentation a nd Sta Is AP rd OS S MTSO Remote IP Test Head CSR Ethernet Backhaul Network •EtherSAM Y.1564 for Turn-up Frame loss, delay, throughput, burstability, frame delay variation • Ethernet OAM standards (802.1ag, and Y.1731) On-Demand Service Performance Test (In-Service or Out-of-Service) 24x7 In-Service Monitoring (Availability, Loss, Delay, Delay Variation © 2010 EXFO Inc. All rights reserved. 5 LTE Testing & Service Assurance Lifecycle In/Out-Service Troubleshoot › › › › Locate problems Find the cause of the problems quickly Access to the details required From mass data to the root cause Conformance/Load Testing › › › › Test the functionality, interfaces IMS Core performance, scalability Interoperability MME/eNB, UEs Test the load behavior before the real load RCS EPC IMS VoIP Video Data Ethernet Optical 24/7 Monitoring › › › › › End-user experience SLA screening Service usage, RCS, IMS monitoring Network element/UE problems Fraud detection, billing verifications Install/Burn-in/Troubleshoot › › › › › Physical layer characterization Ethernet Testing & Troubleshooting IP transmission tests Connectivity to eNB Delays/jitters in installation phases © 2010 EXFO Inc. All rights reserved. 6 Summary › 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 © 2010 EXFO Inc. All rights reserved. 77 Backup SlidesTHANK YOU © 2010 EXFO Inc. All rights reserved. 88