Feb 2020 – Apr 2021 · 1 yr 2 mos · Bengaluru, Karnataka, India

•  Working for LTE/5G modem team handling RTD design process, regression testing, analysis of logs using ELT tool for ERRC (L3), NAS level analysis
•  Test Cases Design and Execution using Anritsu RTD 6.5.0/7.0.3 (Rapid Test Designer) by analyzing the Test Case Specifications.
•  LTE Conformance Testing, Sample test case design, Sanity & Regression Testing, Test Automation.
•  Overnight execution for design TCN over RTD machine and debugging of failures
•  Experience in Analysis of client logs, finding out the problems and fix the bugs. Testing various LTE features with analyzing and reporting of bugs.
•  LTE ,5G test case design using Anritsu RTD tool and debugging for failure observed.
•  4G/5G 3GPP specifications strong knowledge for RRC and physical layer .
•  Analyzing overnight logs analysis of OTA message and suggestion of changes in case of failure to improve test design
•  Working over L1, L2(MAC, RLC, PDCP), L3(RRC) layer for debugging of modem/enodeb issue

May 2010 – Feb 2020 · 9 yrs 9 mos · Gurugram, Haryana, India

• Having sound knowledge of 5G 3GPP Rel 15 specifications covering gNB Central Unit (gNB-CU), gNB Distributed Unit (gNB-DU) ,F1 interface ,CPRI ,5G frame specifications .Understanding of subcarrier spacing ,numerology ,5G downlink and uplink physical channels
• Having good knowledge of Nokia 5G18A release based on 3GPP Rel 15 specifications covering good understanding of nokia 5G products ie Airframe (CU) ,Airscale (DU) including AMIA,ASIK,ABIL ,Nokia Radio units for 3.7 GHz AEQD ,39 GHz AEWA etc ,5G non standalone architecture option 3x .Understanding of Radio unit covering digital(for cmwave) and analog beamforming(for mmwave)
• Working as part of Nokia Central team supporting all Major Indian operators (Bharti ,Idea ,Vodafone) RFP ,Roll out, Optimization project ,feature trials ,Solution related services to customer. Having Global exposure as well, worked for Singapore M1 operator for U2100 trial ,MBLB feature implementation .
• Currently supporting VOLTE projects as part of initial VoLTE services rollout in India. Day to day activity involved layer 3 ,layer 1 message analysis ,SIP messaging analysis ,VoLTE call drop analysis ,VoLTE CSSR improvement, VoLTE registration issues troubleshooting ,MOS analysis and improvement plan for cluster drive .
• Supported VoLTE optimization project for ZTE network Kolkata. Involved in cluster optimization ,Layer 3 analysis for log files ,DT KPI’s ie VoLTE call setup SR ,VoLTE call completion SR, IMS registration SR ,SRVCC Handover SR etc to be maintained as per agreed threshold .MOS testing and analysis of poor MOS areas using XCAL /XCAP tool .
• Having sound Knowledge of VoLTE signalling and call flow, IMS products and functionality (P-CSCF,I-CSCF,S-CSCF nodes, TAS etc ) ,SIP Protocols ,LTE signalling and call flow ,VoLTE features (TTI bundling ,SRVCC to WCDMA etc) ,LTE advanced features related to capacity enhancement ,throughput enhancement .