• 5GNR/LTE Protocol Testing: Extensive experience in functional, regression, and integration testing on 5GNR/LTE systems, with strong knowledge of radio protocols including RRC, PDCP, RLC, MAC, and PHY• Analysis and debugging - Expertise in 5GNR/LTE/Inter-RAT Protocol stack testing & Log Analysis• Architecture- Experience with 5G NR ORAN (CU, DU, RU) system interfaces, Core (AMF, UPF, SMF, SBA, APIs flows) and protocols such as NAS, F1-AP, E1-AP, NG-AP, RRC.• Call flow- Strong understanding and troubleshooting skills of 5G, LTE/SIP Call flow.• Feature Testing- Knowledge of 3GPP 5G Features like Beam Management, Bandwidth parts Carrier Aggregation, Throughput Debugging, DRX/cDRX, Paging, MIMO, CLP control, TM modes, TTI Bundling & Peak throughput. Tested throughput in different bands with CA, 4/2 CRS, SISO & MIMO in LTE and NB-loT. Expertise in debugging and troubleshooting using tools like QXDM, Wireshark.• Mobility- Thorough working understanding of 5GNR/LTE mobility procedure and protocols like Intra/Inter-du, Inter/Intra LTE Enb HO, SON ANR, PRACH Optimization, MRO, Cell power optimization• Specifications- Excellent understanding of Rel 8/Rel 9/Rel 10/Rel 13/Rel 14/Rel 15 3GPP standards• Lab Nodes Bring up- Experience on establishing 5G SA lab end -to-end and integrating GnodeB with different O-RU's vendors• TestCase- Expertise in analyzing requirements, technical specifications, creating test plans at system level for feature level testing. Test case preparation and execution using Real UE, UE simulator Box, TM500/Keysight.• Troubleshooting- Analyzing system level issues related to EnodeB/Cell Bring Ups, Call Failures, Throughput and other Functional Features• Release-Validating Release package released by System Integration, identifying defected, close working before releasing to customer.

Associated with RAN Validation Team, primary responsibilities are verification of New Features from Vendor Software releases on Operator Labs prior deploying onto field NodesAnalyzing System level issues related to EnodeB/Cell Bring Ups, Call Failures, Throughput and other Functional Features.Involved in testing of new features, Regression with debugging experience on end-to-end LTE Platform.Validated LTE/LTE-A features like Handovers, CDRX, Timing Advance, Carrier Aggregation, DL/UL Transmission Modes, Volte, TTI Bundling, CSFB etc.Expertise in Issue debugging related to Call Failures, Throughput Debugging and KPI CountersInvolved in Testing SON features like UE based ANR, Load Balancing, MRO and RACH optimization.

• Involved in system/ solution testing, validation & certification of LTE/EPC products with regards to project delivery. Developed & implemented functional & nonfunctional testing, proof of concept activities.• Technically guided team members in testing activities, analyzed issues in field logs to support commercialization of product.• Integration, Configuration, Feature Implementation, Software upgrades and testing of SAMSUNG EnodeB.• Verifying Test Cases for System Validation and Testing.

Multi-Standard Enterprise Cells (MSECs) include a range of indoor small cells for large-to-small enterprises. They support multiple frequency bands, high throughput, and a wide range of users as well as carrier aggregation, self-organizing network (SON) technology, and LTE in the unlicensed band.• NLT engineer (Network level test) on 4G/3G small cells project.• Mobility scenario verification Inter/Intra LTE, IRAT Handover.• Throughput and Multi UE testing

Project- TATA DoCoMo WCDMA• Involved in testing 3G to 4G Inter-RAT Handover, CSFB and SRVCC scenarios.• Creation of test cases for new WCDMA features and implementation in NodeB/RNC.• Bring up of network elements like OMC-R, RNC, NodeB, Media server for E2E functional validation.• Have good protocol knowledge of UMTS network, working on RRC/RLC/MAC/PHY/RANAP protocol testing.• Ability to go through 3GPP specifications and come up with detailed test plans

UTRAN System Test team is mainly involved in individual RNC/Node B feature testing and UTRAN level Key Performance Indicators testing per releasering up of network elements like OMC-R, RNC, NodeB, Media server for E2E functional validation.• Have good protocol knowledge of UMTS network, working on RRC/RLC/MAC/PHY/RANAP protocol testing.• Ability to go through 3GPP specifications and come up with detailed test plans.

• HSDPA,3G Drive, Analysis of drive test data, identify weak coverage/quality areas, call related issue (CS/PS setup time, Pilot pollution, Interference Ec/Io, missing neighbor, call drops, RAB establishment issue, less throughput), rectification of the same.• Handling optimization of new sites and handled problems like RAB Speech drop,• Interference, IRAT handover failure, handover reversion, in-building problem, Antenna tilting, competitive drive test.• Responsible for performing the drive test by DT Engineer for the network at regular intervals to check the quality of service % changing system parameter like Scrambling Code assignments, neighbors’ lists, antenna orientation & tilt to achieve better coverage, call quality & network capacity.• Analyzing in 3G(WCDMA) Interference, Call Drops, Handoff failures, IRAT Handover failures, Common Pilot Channel Received Signal Code Power, Common Pilot Channel Interference Ec/No, Scrambling Code and defining neighbors (3G & 2G Both), check relation between 3G & 2G etc.

• Covering areas given by the customer cluster wise and performing complete drive test• Drive test on demand after migrations activities.• Carrying drive tests for any new sites added in the network• Preparing log files and forwarding it to the optimization engineer• Drive test analysis to resolve critical network problems and customer complaints• Good exposure on customer complaints, Call drop.• BSC Rehoming drive, Software up gradation drive & Frequency Scanning Drive