Varun Katial

Background

About Varun Katial

Working Expertise of 18+ years in Telecom Industry (Wireless) includes interaction with following technologies: 5G Core, NFV, Cloud computing,5G C/O-RAN, VoNR, 4G LTE-EPC,IMS,VoLTE,VoWiFi,WLS/ECID,3G UMTS,AGPS, GSM. Multivendor network exposure includes Polaris Wireless, Nokia-Networks, Cisco, Alcatel-Lucent, HP, Affirmed Networks and Ericsson EMS/NMS framework. Worked with telecom giants such as Telstra (Australia), SFR (France), Vodafone (Qatar) & Reliance Jio (India). Handling mid-size team, working on the Functional validation (i.e, DUT/Unit testing + API testing using HTTPv2) of 5GC – Standalone architecture model comprised of the AMF, UDM, etc. interacting with the LMF (Location Management Function) functionality of virtualized Mobile Location Centre (vMLC) Product Suite and assisting System Architect in writing & reviewing of Functional Specs/EIS based on 3GPP Release16 & onwards. Responsible for E2E QA Feature/Release testing of Polaris Wireless Omnilocate – Mobile Location Center (MLC) in a box using Wireless Location Signature (WLS), AGPS, ECID, CID technology primarily responsible for Location/Positioning Estimation of mobile in 5G (NR), LTE, VoLTE/VoWiFi over Mw interface (IMS), 3G & 2G Networks. Good insight knowledge about the 4G to 5G transition (Non-Standalone model), interworking between 4G EPC & 5GC (Standalone model), Registration Procedure in 5G Standalone, Call flows in 5G SA/NSA topologies, Network Function Discovery, CUPS implementation, etc in the 5G Service based architecture. Expertise in handling Network Operations (NOC) of LTE/VoWiFi Packet Core nodes i.e, ASR5500 (ePDG + SaMOG), (CPAR), SAE-GW. Config./Change management, Problem management, MOP Preparation & Execution. Deep understanding of SDLC (Software Development Life Cycle), STLC (Software Test Life Cycle) and Proficiency in test methodologies (Agile/Waterfall model), White box & black box Unit testing of DUT in 5G (NR), LTE, VoLTE/VoWiFi over Mw interface (IMS), 3G & 2G Networks. Responsible for complete Functional/Feature Release testing cycle i.e, Business/Feature requirement analysis, Functional specs review, system test requirement analysis, System architecture Document & Detail Design, Test Strategy/Planning, High level test design creation, Customer acceptance/Sign-off, test case scripting in Testlink/HP-QC, test execution, test report preparation, raising defects/bugs, defect tracking, defect verification till stable Release delivered for the Product suite/system integration test-bed.