Testing eNB/gNB Protocol L3 testing Analyzing UE to eNB/gNB messaging using QXDM/XCAL Logs ORAN/VRAN system Integration 3GPP System, Core & RAN network eNB/gNB Entity level testing, protocol layer functionality, deep drive w r to new features with L1 protocol, L2 protocol, L3 protocol SW testing of new features & functionalities, Wireless system layers PHY, MAC, RLC, RRC & PDCP Analyze feature requirement, develop test strategy for feature & functionality testing Use of Protocol Analyzers, test tools XCAL, Wireshark, Channel emulators, Spectrum Analyzer, Signal Generators etc., 4G/5G Call processing, RRC,S1-MME,S1-U & X2 Protocols Protocol Layer L1: layer functionality deep drive w r to new feature compliance to 5G RF testing, Modulation & coding scheme, Beam forming & Beam management, Channel estimation & equalization, Carrier aggregation, Antenna diversity, synchronization & Timing, Performance under Interference testing & Reliability to 5G network Protocol Layer L2: MAC, RRC, Scheduling & QoS, PDCP, RLC, DLA, Buffer Management & Flow Control for handling traffic congestion and network load situation, prevent packet loss and ensure smooth data flow during peak traffic periods Protocol Layer L3: layer functionality deep drive w r to new feature compliance to 5G 5G SDAP, 3NAS & RRC, NAS EMM ESM and ECM, RRC states and system Information, NAS & PLMN selection procedure, RRC Network Entity, RRC attach, RRC tracking area update, RRC Handover 5G slicing, NR SIP, NR Call Flow, NR Log Analysis, NR conformance testing Mobility Management, Session Management, Call Control & Signal Testing, QoS of different types of traffic & applications, Security Protocol, Network Management & Configuration, PCC testing, Interworking and Inter Operability Testing QA Programmer - Software Quality, Reliability, Usability, Vulnerability defect hunters