Siva Verrigukka
Summary
Looking for challenging position in an organization where my skills & abilities will be tapped to its best & which will help me to explore myself fully & realize my potential. A role that would mutually benefit me & the organization I work for.
I Have 10 Years of experience in OpenRAN, 5G-NR/LTE Protocol stack System Engineering,Testing, and LOG analysis.
Overview
10
10
years of professional experience
15
15
years of post-secondary education
Work History
Technical service engineer Expert
Fujitsu
12.2021 - 06.2024
- 5G-NR Protocol testing and Log analysis at the Enodeb side
- Setup, testing, and integration gNB, eNB, split bearer, MCG, SCG, and PDCP SN Length.
- Worked on interoperability between LTE and 5G NR (NSA 3X, SA2).
- Field network radio parameters (threshold, offset, hysteresis) optimized for field KPIs (RSRP, RSRQ, SINR, RSSI) for smooth continuity of tested clusters.
- Worked on test specifications: Create / update / review test documents (test plans, test cases, test reports, functional specifications, procedures) using 3GPP Documents.
- Investigate, explain, and report UE or network errors, including collaborations with other teams.
- Based on 3GPP documentation, analyzed logs obtained from IOT test sessions.
- Run OAM on Mavenir RAN, maintain lab equipment and software, upgrade NE, upgrade BTS software version, and build / extend workstations and 5G gNB / LTE eNB as needed.
- Familiar with Mavneir RAN and customer tools, processes, and methods: Qualcomm Package Manager (QXDM, QCAT, PCAT, QPST, QMI Test Pro), Wireshark, EMIL, BTS counters.
RAN Integration Engineer
Mavenir
04.2021 - 11.2021
- Worked from Mavenir through NEC Japan lab to actual deployment in the field on VNF and CNF-based Open RAN solution on different Infrastructure platforms like Mavenir, Open stack, and VMware.
ENGINEER
Ericsson India global services private limited
05.2016 - 04.2017
- Strong Hands on Experience on LTE and LTE-A, field issues, troubleshooting find root cause.
RF ENGG
IWS PVT LTD.
10.2015 - 04.2016
- Working on Critical Field issues of the different open market smartphones under the OEM devices project, which are the highest priority for any organization, in which I am handing the process of understanding, checking, validating, Taking the logs with respect to chipset like Qualcomm, Samsung and Analyze the issues to point it out where the issue happened and to get the solution
DriveTest ENGG
Vedang radio services
08.2014 - 08.2015
- To perform Drive test using TEMS for SCFT Site optimization by changing Physical parameter, DT Audit Reports etc
RF ENGG
IWS PVT LTD.
10.2013 - 06.2014
- To perform Drive test using TEMS for SCFT Site optimization by changing Physical parameter, DT Audit Reports etc
Skills
Good Knowledge on E2E system Architecture of LTE/5G RAN
Experience in 5G End-To-End RAN testing
Good System integration experience in Radio L1 – L2/L3 RU,DU and CU
Hands-on experience of troubleshooting Hardware faults of O-RU,O-DU and O-CU
Strong Experience in 5G,4G Air Interfaces,Network Architecture and call processing
Troubleshooting of Call Processing Logs,Modem Logs
Experience in LTE RRC,PHY, MAC, RLC level log analysis during failure and performance degradation
Good experience in analyzing logs and debugging issues for air interface, carrier aggregation, and throughput scenarios
Understanding and exposure to deployment, and validation of 4G, VoLTE, and 5G elements with exposure across virtualization and container platforms like Openstack, kubernetes
Experience in O-RU,O-DU,O-CU & O-RAN Tests as per OpenRAN specifications
Experience of 3GPP Standards like 5G-NR radio access technology layers like RRC,PDCP,RLC,MAC and PHY testing
Good Knowledge of LTE protocol stacks RRC, RLC, PDCP, MAC and Physical layer
Good Understanding and experience in troubleshooting and executing the features & functionality as per 3GPP standard like Carrier Aggregation & Handover
Good knowledge of services and functions provided by each layer in LTE protocol stack
Having good experience in LTE call Flows, Registration, Attach/Detach procedures
Having good experience in LTE Network Element Application Protocols S1AP, X2AP
Good understanding of different test scenario and setup configuration
Good knowledge of Generating log files and interacting with the development/analysis team to resolve problems
Technicalsummary
5G/LTE,OpenRAN, RRC,MAC, RLC, PDCP,NAS,PHY, JIRA, TM500,MXG,VSA, QXDM,WIRESHARK
Disclaimer
I hereby declare that the information furnished above is true to the best of my knowledge and belief.
Education
Bachelor of Science - Electronics And Communication Engineering
JNTU KAKINADA
06.2009 - 06.2013
High School Diploma -
Sri Chaitanya Junior College
Gajuwaka 06.2007 - 05.2009
School -
S.F.S School
Gajuwaka 06.1998 - 05.2007
Timeline
Technical service engineer Expert
Fujitsu
12.2021 - 06.2024
RAN Integration Engineer
Mavenir
04.2021 - 11.2021
ENGINEER
Ericsson India global services private limited
05.2016 - 04.2017
RF ENGG
IWS PVT LTD.
10.2015 - 04.2016
DriveTest ENGG
Vedang radio services
08.2014 - 08.2015
RF ENGG
IWS PVT LTD.
10.2013 - 06.2014
Bachelor of Science - Electronics And Communication Engineering
JNTU KAKINADA
06.2009 - 06.2013
High School Diploma -
Sri Chaitanya Junior College
06.2007 - 05.2009
School -
S.F.S School
06.1998 - 05.2007