Avinash Gupta

About Avinash Gupta

Telecom professional with three years of experience in 5G-NR, LTE, VoLTE, and VoNR…

Experience

1. Network Support Engineer

   Quess Corp Limited

   Feb 2023 — Present

   5G-NR, LTE, and VoLTE protocol testing, debugging, and validation across lab and live network environments. Executed functional, performance, stability, regression, and KPI testing for RAN systems, and ensured compliance with 3GPP specifications. Validated scenarios such as cell selection, RACH, cell reselection, UE registration, attach/detach, mobility (Xn/ng handovers), and end-to-end call flow testing for both data and voice services. Conducted feature validation for Carrier Aggregation, EPS fallback, VoNR/VoLTE services, MIMO, and conference, hold, and mute functionalities. Performed throughput, load, and stress testing under various radio conditions to validate performance and stability. Hands-on expertise with industry tools: X-CAL, X-CAP, ELT, QXDM, QCAT, Wireshark, Net-Velocity, and JIRA. Collected and analyzed UE logs, performed root cause analysis, and tracked issues using JIRA, ensuring timely bug resolution. Configured test beds, small cells (ODSC, IDSC, IMG), and lab setups; flashed devices with new builds, and retested failed cases. Experienced in RF optimization and site integration, including SCFT, pre/post-cluster drive testing, antenna tilt/reorientation, and KPI monitoring. Strong knowledge of RAN, Core network elements (AMF, MME, HSS, PCRF, SGW, PGW, UDM), and protocol layers (PHY, MAC, RRC, PDCP). Proficient in working with Linux and Windows platforms, with strong debugging, troubleshooting, and analytical skills.