NOKIA RAN Expert
Orange
Total years of experience :15 years, 5 Months
• Conducting technical studies for QoS amelioration in Orange mobile network
• Leading trials for new features introduction
• Troubleshooting and technical support on issues encountered in Orange 4G network
• Ensuring training for radio engineers on the different network evolution and optimisation methods
• Leading providers and subcontractors during integration, validation, field tests phases and acceptance phases of SFR network’s solutions and features
• Troubleshooting issues obeserved during lab verification or in live network
• Participating in meetings and workshops to prepare, consolidate and follow-up the new softwares upgrade and the implementation of new features and solutions
• Providing technical support on different issues during lab validation of new solutions and features
• Related projects: VoLTE introduction in SFR network, RAN sharing project with ByT, LTE in 1800 band trial, 3 carrier aggregation introduction in SFR Network, ANR 4G and InterRAT trials, RU50 trial, RL60 and LTE15A trials ...
Work on Alcatel-Lucent Metrocell project: “Alcatel eNodeBs products capacity test, integration and validation”
• Capacity tests of Alcatel-Lucent 9764 Metro Cell Outdoor
• New features implementation and tuning of LTE radio network parameters
• Test plans preparation for services (FTP, VoiP …), radio procedures (RRC, NAS, Handover, scheduling …) and multi antenna scenarios (MIMO, SIMO, MISO, TxDiv)
o Air interface and Core interfaces traces collection
o Troubleshooting, tracking down different symptoms
• Test of traffic models of Alcatel-Lucent clients o Analysis of KPIs, alarms and events
o QoS and problems monitoring
o Tuning of RAN parameters for QoS and performance optimization
• Problem reporting and coordination with development teams
• Training of new team members on different test procedures, tools and working environment
1- Study and design of interference management strategies for LTE/LTE-A femtocells:
• Study of propagation models suitable for indoor deployments
• Design and development of a system level simulator for indoor networks
• Design of beamforming schemes (physical layer) for interference cancellation in case of densely deployed femtocells
• Design of resource allocation techniques (MAC layer) adapted for the beamforming strategies: advanced scheduling, MIMO, time-frequency link adaptation…
• Link Budgets calculation of the different transmission strategies
• Performance evaluation of the different suggested transmission strategies in terms of spectral efficiency and overhead
2- Contribution to the FP7 European project "Advanced Radio Interface Technologies for 4G SysTems" (ARTIST 4G radio) ( https://ict-artist4g.eu/ ):
• Technical contribution in work package 1 entitled Interference avoidance
• Orange activities presentation in the different project’s meetings
3- Papers and patents development
” CAPEX, OPEX, and Spectrum needs assessment for 2G (GSM, GPRS, EDGE), 3G (UMTS, HSPA) network evolutions”
• Participation in the design and development of the WINST tool (WIreless Network and Spectrum Tool) : a tool used for the evaluation of network costs
• 2G RAN dimensioning ( 2G sites, TRX, Abis, BSC)
• 3G and HSDPA RAN dimensioning ( 3G sites, DCH frequencies, BBUs, RNC, Iub, Iu)
• Study of the impact of traffic evolution scenarios and roll out strategies on network costs
” Design and performance evaluation of schedulers for HSDPA networks”
• Design of schedulers for processing power savings of HSDPA mobiles
• Mathematical modeling of the performances of the suggested schedulers (spectral efficiency, power savings for HSDPA mobiles)
• Monte-Carlo Simulations of the performances of the suggested schedulers