Prasanth Nagineni

Assistant Manager with strong technical expertise in RF and modem validation for Qualcomm and MediaTek platforms, supporting multiple cellular operators. Extensive experience in PHY/MAC-level log analysis using QXDM/QCAT and ELT/NLT to diagnose RF performance, throughput, CA behavior, and call/data stability issues. Proven capability in OTA TRP/TIS testing, antenna tuning, and RF system optimization using CMW500, VSA, and VNA.

Hands-on exposure to Sub-6, FR1, FR2 (mmWave), Wi-Fi, Bluetooth, and GNSS (L1/L5) validation. Demonstrated ability to lead test execution, review results, guide junior engineers, and improve RF test workflows. Strong cross-functional collaborator working closely with antenna, PCB, and mechanical teams to resolve desense, impedance mismatch, and coexistence issues while meeting project timelines.

Assistant Manager – RF Systems - Transsion Holdings

(2026-01)

• Led end-to-end RF and modem validation for Qualcomm and MediaTek platforms, validating PHY/MAC/NAS behaviour across live commercial networks.
• Captured and analysed modem and protocol logs using QXDM/QCAT (Qualcomm) and ELT/NLT (MediaTek) to root-cause RF, throughput, and stability issues.
• Performed detailed analysis of TX power control (open/closed loop), including PUSCH/PUCCH power headroom, power back-off during CA and MIMO, and thermal/SAR-limited scenarios.
• Evaluated DL/UL throughput performance through MCS index trends, QAM order (QPSK to 256QAM), RB allocation efficiency, TBS utilization, and BLER vs SINR correlation.
• Analysed CQI/PMI/RI reporting accuracy and identified link adaptation failures related to interference, channel estimation errors, antenna imbalance, and RF desense.
• Validated LTE and NR Carrier Aggregation (intra-band/inter-band) covering 1CC, 2CC, and 3CC configurations, assessing impact on throughput, latency, and power consumption.
• Debugged MCA DL throughput degradation, correlating scheduler behaviour, HARQ retransmissions, BLER excursions, and RRC state transitions.
• Validated IMS services (VoLTE/VoNR), analysing RTP packet loss, call drops, mute issues, and inter-working under mobility and weak signal conditions.
• Supported C2K (1x/EVDO) validation for legacy inter-RAT scenarios and fallback behaviour.
• Executed TRP/TIS OTA testing in semi-anechoic and CTIA chambers using CMW500, ensuring compliance with regulatory and operator requirements.
• Performed antenna tuning and impedance matching using VNA, validating S11/S22, bandwidth, radiation efficiency, and enclosure/grip effects.
• Correlated OTA and conducted RF results to identify antenna inefficiency, MIMO imbalance, and ground clearance limitations.
• Improved OTA test workflows, enhancing measurement repeatability, coverage efficiency, and overall test cycle time.
• Validated Wi-Fi (802.11 a/b/g/n/ac/ax) and Bluetooth RF performance using CMW100, ensuring modulation accuracy and spectral compliance.
• Performed I/Q analysis, EVM, spectrum mask, and OFDM subcarrier verification using IQ2010 and IQ2290.
• Validated GNSS (GPS L1/L5) performance including sensitivity, NFE validation, and TTFF degradation analysis under noise and coexistence conditions.
• Investigated cellular and connectivity IP packet loss, correlating PDCP/RLC counters, retransmissions, bearer reconfiguration, and buffer behaviour.
• Executed RF validation across Sub-6, FR1, FR2 (mmWave), and NFE, including beam management and mobility performance.
• Analysed RSRP, RSRQ, SINR, and throughput vs beam switching behaviour for FR2 mm Wave scenarios.
• Collaborated closely with antenna, PCB layout, and mechanical teams to resolve impedance mismatch, RF routing issues, grounding problems, desense, and coexistence interference.
• Served as technical owner during HW bring-up, pre-certification testing, and operator acceptance phases.

Senior RF engineer-RF systems - Foxconn hon hai Technology India

(2024-05 - 2025-12)

Working in foxconn as a Sr. RF Engineer of Testing of LTE, NR, Wi-Fi antenna Rx, Tx and sensitive of RSSI signal, performing antenna with mobile operation and failure of antenna with mobile module Noise.

• Working in foxconn as a Sr. RF Engineer of Testing of LTE, NR, Wi-Fi antenna Rx, Tx and sensitive of RSSI signal. performing antenna with mobile operation and failure of antenna with mobile module Noise.
• Loading baseband (BB) runner and antenna runner tables with different QAM Technology, QM will generate different bands with IQ channels.
• Testing RF Antenna of LTE, NR, Wi-Fi, NFC, Bluetooth sensitivity with different types of scenarios like Mid band, low band, high band by using spectrum analyzer and PNA, with obsidian (Apple Radio starter)
• Measuring the LNA, cable loss, low pass filter. S-parameters. Doing cable calibration with e call kit. Calculate transmitting coefficient
• Measuring path loss of different Technology like LTE, NR, WLAN, GNSS to get good Rx level and TX level.
• Measuring VSWR of Fixture antenna, jumper flux antenna and tunings the VSWR by using Rehostat
• Doing conductive probing to Check MLB Tx power loss(desense). By using spectrum probe we measure the module desense.
• We have station of E85 charging with 4k display, LTEIQ charging, Wi-Fi 6E charging, GNSSL1/L5, Wi-Fi UAT/LAT, E85 Wi-Fi sensitivity search, FDD RSSI, Non-0RSSI
• Validation of fixture with BB versions/W bundle version with DUT and checking the fixture isolation with spectrum analyzer.
• Making box plots, CCDF and yield reports for daily communication to with the client.
• Failure of different antenna band during the testing making analysis and find RCA. Making the report sent to client for further investigation

RF engineer-RF systems - Reliance industries Limited (RIL)

(2022-06 - 2024-05)

• Having knowledge and experience working on end-to-end connectivity of eNodeB macro, gNodeB and NLD core and intra city fiber tapping's.
• Maintain the performance and hardware faulty requirements and resolve the TTs assigned to deployment team and coordinate with team for installations and integration of equipment's.
• Installation of eNodeB macro, gNodeB, ESE, ODSE, IBS/ISE and Performing network surveys to maintain the KPI and RF parameters and improving the above-mentioned parameters to resolve the customer network complaints.
• Find new coverage gaps and Propose solutions according to the requirement of business team.
• Knowledge on LSMR to live monitor the site status, alarms, and clear the SA and NSA alarms to avoid site performance issues and escalations from the business mobility team.

RF Testing engineer-RF systems - Indian Defiance R&D organization

(2018-01 - 2021-04)

• Design and testing different types of RF Antennas in ENOCHO chamber to find out parameters of antenna with frequency of 1.4GHz to 40GHz by using PNA we measuring the Rx and Tx level and sensitivity.
• Collect the test samples in a .M file in Mat Lab, Running the code in Mat Lab to find out the antenna parameters like Gain, 3dB beam width and side lobe to differentiate the main target and image target, and calculate the RCS (Radar cross section) range of different size, particles for RF tracking.
• We also measuring the antenna co-pole, cross polarization and circular polarization value to identify the ground radar position.
• We are measuring different type antenna
• Having knowledge on type of reflectors, testing chambers in open range and closed range by using PNA, VNA and spectrum analyses.
• By using the Power amplifier and LNA for creating Tx and Rx path of Antenna, Radom and RF seeker of different frequency. Creating the speaker Null matrix

RF trainee engineer-RF systems - Kuthmb care

(2014-08 - 2016-05)

• Performing the Drive test of eNodeB and physical optimization, we clear the cluster with required throughput levels by creating the benchmark levels.
• Maintaining the SINR, RSRP levels to achieve the good Throughput levels and report to client.

M. Tech - Power System Control & Automation - QIS College of Engineering & Technology (Autonomous)

B. Tech - Electrical Engineering - QIS College of Engineering & Technology under Jawaharlal Nehru Technological University, Kakinada