Summary
Overview
Work History
Education
Skills
Affiliations
Accomplishments
Certification
Timeline
Generic
CHANDRASHEKHAR B MESHRAM

CHANDRASHEKHAR B MESHRAM

Summary

More than 5.6 years Relevant Experience in Protocol Testing in 4G, LTE,5G SA, NSA, NB-IOT, eNB, gNB, RAN, RU, ORAN, IMS-VOLTE, ViNR, VoNR, CU, DU Protocol Testing, Massive MIMO, Beamforming, Python Robot Framework, XML Script Modification, Experience writing Test Cases different Technology & Execution, log analysis. PROFESSIONAL SUMMARY: - I worked in UE & Modem Testing, RAN Testing, Performance Testing, Conformance Testing, Stability Testing, Functional testing, Sanity Testing, Field Testing, Feature Testing, Validation Testing, Throughput Testing, End to End Testing, eNB, gNB, RU, O-RAN, QA, RAN Testing, BBU & Baseband Testing, Integration Testing, Live Testing (Lab), Thermal testing, Automation & Manual Testing, Automation Script & XML File Modification, Product Testing IOT/4G/5G/gNB, Python Robot Framework Experience writing Test Cases Execution. DRAN, CRAN, VRAN, Cloud RAN, Open RAN & Radio L1 – L2/L3 System integration experience (RU, DU and CU)L1/L2/L3 LTE,5G,5G-NR protocols on the Air interface troubleshooting & each area log analysis.

Overview

10
10
years of professional experience
1
1
Certification

Work History

Senior Project Associate

Indian Institute of Technology Hyderabad, IIT
Hyderabad
06.2023 - Current
  • Project Name : - 5G- Advanced O-RAN Massive MIMO Base Station (Performance, Stability, Functional, End to End, Validation, RAN, RU, O-RAN, Throughput Testing)
  • Tools : -Log Analysis Wireshark, QXDM, QCAT, XCAL
  • Job Responsibilities: -
  • Performance, Stability, Functional Testing, End to End Testing, Validation, RAN, RU, O-RAN, Throughput Testing, UE & Modem, RU, RAN, O-RAN Testing
  • Working on Different Qualcomm Chipset & Mobile or Modem
  • Working on different Client side C-DOT, BSNL, TCIL
  • TP testing across all the devices and for all the builds at different stages as per requirement
  • Test Case execution, responsible for fault Analysis, report gNB related defects and tracking
  • 5G-NR SA, NSA, O-RAN, log analysis, JIRA, Bug Tracking, and Reporting
  • 5G –NR Feature Verification by testing features in the Lab by analyzing UE level logs
  • Working in Product deployment 5G gNB & various Testing
  • Product Testing IOT/4G/5G/gNB various clients & Working in Qualcomm, Quetel, Foxconn, Intel CU, DU & VVDN O-RU, WISIG gNB using for testing 5G & O-RAN
  • Various Binaries were configured & Tested in CU,DU,End to End set up with UE & RU
  • Log analysis of different layers based on 3GPP Specifications
  • Working on Interface NGAP & F1AP as per 3GPP Specifications
  • Deployment, issue troubleshooting and finding Root cause analysis
  • Debugging the issue of Failure Test Cases and writing & verification
  • End to End-to-end lab Testing of UE Protocol stack with real environment and simulated environment
  • Bug tracking and reporting the issues to the respective component team and tracking the issue
  • Putting the actual failures in the error tracking system with detailed analysis reports, the cause of failure, and the real-time logs Analysis
  • Experienced with log analysis at 5G-NR L1 & L2 & DL/UL Throughput
  • Troubleshoot RAN/gNB/O-RAN-related issues by analyzing logs
  • Ability to analyze 5G gNB-related issues from logs for UE attach, HO, ViNR, VONR, IMS Data Throughput issues, & other network-related issues
  • Provide technical guidance and support to junior engineers as needed
  • Worked with the development team to ensure testing issues were resolved
  • Work with the technical team on preparing test strategy, test plan and test cases
  • Preparing Test Reports based on accurate testing results and raising bug reports against failures
  • Good understanding of 3GPP and O-RAN specs including CU, DU, and network specifications
  • Good understanding of O-RAN architecture and NR RT RIC components as per ORAN specs
  • Basic understanding of Non-RT-RIC, and SMO

Professional II Engineer

Capgemini Technology Services India Limited
09.2021 - 03.2023
  • UE /Modem/NB-IOT Testing (Performance, Stability, Sanity, Functional Testing)
  • Tools : -Log Analysis Wireshark, QXDM, QCAT, APEX7, EPAT
  • Job Responsibilities: -
  • This Project worked on the Technology LTE,5G-NR, NB-IOT,eNB (TBS, Topcat Simulator Qualcomm)
  • The project focuses on UE Testing, log analysis and verification
  • Configuration at UE side to perform LTE Feature test and analyze UE logs
  • Testing IOT between different components raising bugs and following up with the DEV team
  • Checking Wireshark and TCPDUMP log between different nodes of our system
  • Automation & Manual Testing, Performance Testing, Static & Dynamic, Sanity & Stability Testing
  • Working with Qualcomm & Capgemini on 3 different Customer-Based Product Testing
  • LTE, 5G, EnodeB log analysis, JIRA, Bug Tracking, and Reporting
  • LTE Feature Verification by testing features in the Lab by analyzing UE level logs
  • Log analysis of different layers (NAS, RRC) based on 3GPP Specifications
  • Deployment, issue troubleshooting and finding Root cause analysis
  • End to End-to-end lab Testing of UE Protocol stack with real environment and simulated environment
  • Bug tracking and reporting the issues to the respective component team and tracking the issue
  • Putting the actual failures in the error tracking system with detailed analysis reports, the cause of failure, and the real-time logs Analysis
  • Attach-related performance parameters analysis and LTE Attach failure cause Analysis of Radio parameters (RRC connection, RSRP, RSRQ, SNR)
  • Experienced with log analysis at LTE/LTE-NR L1 & L2 & DL/UL Throughput
  • In performance testing the main area is work on Automation & Manual Testing
  • In this Executed Test Case Automation was compared to DUT & Reference device results based on throughput, BLER, SNR, RSRP, RSRQ, and MCS
  • Static & Dynamic Testing based on Automation & Manual Testing TBS (Test Base Station Simulator)
  • Script Modification XML file
  • Different Template-Modifications based on MCS, RB, UE Category, etc
  • Flashing & Calibration Qualcomm & other Client devices
  • Build Testing was provided as per the customer
  • Thermal Chamber Testing to Verified Build working & Analysis is the RSRP level & Throughput
  • Test case planning, designing and Execution
  • Raising bugs and Following up with the development Team
  • Excellent debugging skills, good experience on analyzing UE side/Modem/EnodeB (Specifically L1/L2/L3 modules) - Debugging of operator issues
  • Testing Legacy features like Handovers, IRATs, CSG, CA, MIMO, Volte, CSFB etc

Innovation Engineer

Nex-G Exuberant Solutions PVT.LTD
08.2019 - 07.2019

Technical officer

Electronics Corporation of India LTD
06.2018 - 06.2019
  • Name : -Automation Testing (UE/Modem/Device Testing)

FME Engineer (Integration Engineer)

Shivam Infocom PVT. LTD
10.2017 - 06.2018
  • Equipment’s Test : - Ericsson Baseband (2G, 3G & 4G)

FM Engineer (Integration Engineer)

Manpower Group Services India PVT.LTD
07.2015 - 09.2017
  • Equipment’s Test : -Ericsson Baseband (2G, 3G & 4G)

Network Engineer

V.K. Technologies PVT. LTD
11.2013 - 07.2015
  • Wi-Max & Wi-Fi Modem)
  • Equipment’s Test : - Wavion & Motorola, UBQUIT

Testing Engineer

QUALCOMM TBS
  • (Test Base Station Simulator) through automation testing
  • Flashing & Calibration Qualcomm, LTE-NB & NB-IOT Devices
  • Experience in using 3GPP specifications for LTE/5G-NR network verification
  • Thorough understanding and working experience on Software Development Life Cycle, Testing Lifecycle and Defect Life Cycle & tracking, test report generation
  • Ericsson Integration, Commissioning, RBS Element Manager, BBU & Baseband Testing product 6630, 6303,6302,6601, 5216, 5212, (Performance, Stability, Functional, Conformance Testing)
  • Tools, 3GPP decoder tool, QXDM, NEXP5 simulator, CMW500, Wireshark
  • Job Responsibilities: -
  • Putting the actual failures in the error tracking system with detailed analysis reports, cause of failure and the real-time logs are attached
  • Understanding of 5G frame stature, numerology, and call flow
  • Good understanding of 3GPP specifications 4G & 5G-NR (SDAP, NAS, RRC, PDCP, RLC, MAC, PHY)
  • Experience in UE/eNB-based log analysis, finding the root cause for bugs and creating defect reports
  • Log analysis of different scenarios using QXDM and QCAT log analysis tools
  • UE/EnodeB logs analysis Throughput cases for 4G features CSFB, CA, MIMO, Handover
  • Experience in UE/eNB based log analysis, finding the root cause for bugs and creating defect reports
  • Random Access Procedures (contention-based, and non-contention based) and Contention Resolution
  • MAC Protocol Procedures and Control Elements Back off Indicator, Timing Advance, DRX Modes
  • Executing the test cases and concluding expected results
  • Understanding and analyzing each test case before actual testing starts
  • To provide detailed reports based on bugs and initial analysis for problems
  • Providing the logs to developers with the cause of failure
  • This project includes Conformance Testing of RRC protocols by using the Conformance Toolset and involves the Execution of test cases from 3GPP specification 36.523-,38.523
  • LTE log analysis, Bug Tracking, and Reporting
  • Putting the actual failures in the error tracking system with detailed analysis reports, the cause of failure and the real-time logs are attached
  • Cell Search, Cell Selection & Cell Reselection Criterion
  • Primary and Secondary Synchronization Signal (PSS and SSS)
  • Handle the testing tasks and get information about signal and battery strength
  • Responsible for filing issues and debugging with HW/SW systems to complete analysis and fix issues.

Education

B.E - Electronics and Telecommunication Engineering

S B Jain Institute of Technology Management & Research
01.2013

After Diploma -

01.2010

Diploma - Electronics and Communication Engineering

Shankarrao Dhawade Polytechnic
01.2007

MBA - Finance & IT

Swami Vivekananda Subharti University

Skills

  • G-NR/ eNB /gNB/O-RAN/RAN/LTE-NB-IOT, IMS-VOLTE
  • Experience in LTE /5G Protocol Testing (PHY, MAC, RLC, PDCP, RRC & NAS) NB-IOT, LTE,5G-NR, 5GO-RAN, RU
  • Good Understanding DRAN, CRAN, VRAN, Cloud RAN, Open RAN, O-RAN & Radio L1 – L2/L3 System integration experience (RU, DU and CU)
  • Product Testing IOT/4G/5G/gNB various clients & Working in Foxconn, Intel CU, DU & VVDN O-RU, WISIG gNB using for testing 5G & O-RAN
  • Qualcomm Software Tool QXDM/QCAT/QPST, QIPL, PCAT, QUTS, EPAT, WIRESHARK, APEX
  • Hands-on Experience Simulator CMW500, TM500, Anite9000, Anritsu, Keysight UXM Wireless Test Set E7515A, Sprint Emulator VXM
  • Working Hands-on Experience Qualcomm TOPCAT(5G), TBS(LTE RRU, EnodeB)
  • Good understanding of ORAN, CPRI and ECPRI, CU-DU and RU Concept
  • Good understanding of 5
  • TECHNICAL SKILLS: -
  • Operating Systems: - Windows 7/8/10, LINUX-UBUNTU, AT Commands
  • Programming, Framework & Scripting Languages: - C, PYTHON, TTCN-3, Ethical Hacking & MS-CIT Certification, Python Robot Framework, XML Pytest,Git/GithubJSON,Flask Server, JIRA, BUGZILLA
  • Knowledge on Protocols & Domains:- PHY, MAC, RLC, PDCP, RRC & NAS, SDAP, NB-IoT, IMS/Volte, CSFB, CA, GTP-U, SIP, GTPCv2, DIAMETER SRVCC, HANDOVER, X2, S1 & IRAT, AMF, SMF, UPF, VINR,VONR,CU,DU,O-RU
  • Protocol Simulators & Log Analysis Tools:- QXDM, QCAT, PCAT, QIFL, QPST QUTS, APEX 7, EPAT, XCAL, TEMS, Wireshark, Mediatek-ELT, Aeroflex-TM500,XCAP,PCAP Tool, 5G (Keysight UXM E7515B, E7515A), CMW500, Anritsu, TBS simulator, Spirent (VR5 & XD5 Network Emulator, Anite9000, Elvior Test, Focus Analyzer
  • PRODUCT USING, CLIENT & TESTING:-
  • ERICSSION 2G,3G,4G Adv Baseband, ZTE, Huawei
  • IoT 4G & 5G Devices Quectel & Qualcomm & Chipse
  • Qualcomm & Media Chipset & Modem Testing
  • Client-side working Qualcomm, Quectel, BRAN, BSNL, C-DOT, Wisig
  • Phone Testing Samsung s22, IQ Seseries, OPPO etc
  • VVDN Antenna O-RU
  • Wisig eNodeb/gNodeB Testing
  • Intel FLEX RAN & SuperMicro (CU & DU )
  • 5G (Keysight UXM E7515B, E7515A), CMW500, Anritsu, TBS simulator, Spirent (VR5 & XD5 Network Emulator, Anite9000, Elvior Test, TM500
  • Wavion & Motorola wireless Network Devices
  • Ubiquiti Antenna (Wi-Max and Wi-Fi Network) Wireless Devices
  • Anritsu site master (S113C)/BIRD Site Master, Calibration & Agilent power meter

Affiliations

  • Have attended various national level seminars and paper presentations.
  • Participated in a Paper presentation on LTE (Long Term Evolution) S.B.Jain Institute of Technology, Management & Research, Nagpur
  • Participated in Project of K.D.K College of Engineering, Priyadarshini College of Engineering, Tulsiramji Gaikwad Patil College of Engineering, Nagpur
  • BSNL visited one day at RTTC Nagpur.

Accomplishments

  • G-NR, 5G SA & NSA architecture
  • Experience in using 3GPP specifications for LTE/5G-NR/ORAN network verification
  • Hands-on knowledge of running the test cases Relevant to 3GPP Specifications and capturing logs
  • Hands-on Experience in NB-IOT, LTE, and test cases
  • Doppler Fading Channel Testing
  • Excellent debugging skills, good experience analyzing UE side/Modem/eNB/gNB CU and DU) (Specifically L1/L2/L3 modules) - Debugging of operator issues
  • Good understanding of ORAN, CPRI and ECPRI, CU-DU and RU Concept
  • Good understanding of 5G-NR, 5G SA & NSA architecture
  • 3GPP 5G-NR PHY knowledge with focus on procedures (38.211-215)
  • 5G Protocol conformance standard expertise (38.523)
  • 5G FR2 mm Wave RF conformance testing expertise (38.521)
  • Extensive understanding in 5G ORAN split functions (7-2x, RU, DU, CU, CP, UP)
  • Hands on experience in L2/L3 protocols testing (CU and DU)
  • Experience in End-To-End RAN testing & Log Analysis
  • Validated test cases based on 3GPP test specifications for GCF/PTCRB device certification
  • 3GPP LTE Release 13, NB-IOT Release 14,5G NR Release 15 and Release 16 test cases
  • Ability to understand UE features /requirements in depth and think verification scenarios from system and functional testing point of view
  • Hands-on Test Setup and Execute test cases with Automation tool and Manual
  • Hands on Perform discrete Analyzing, raising tickets or directly reporting the valid issues to the respective team with perfect log traces
  • Ability to stay updated with the latest advancements in 5G technologies and industry trends
  • Strong knowledge and understanding of 5G technologies, protocols, and standards.

Certification

  • Technology 2G/3G/4G/5G, 5, 5G O-RAN (Open RAN) Architecture Procedures & Use Cases
  • OpenStack, Kubernetes and NFV (TelcoCloud)
  • Telecom Testing (4G) using Python and Robot Framework
  • Docker training bootcamp - Tutorial course for DevOps
  • SDN Crash Course (Openflow, Mininet, RYU) Practical/Handson)
  • 4G /5G, LTE EPC - Advanced Troubleshooting using Wireshark
  • Voice over LTE (VOLTE) & IMS troubleshooting
  • Complete Guide to Network Analysis with Wireshark 2.6
  • Python, CCNA, Ethical Hacking & MS-CIT Certification

Timeline

Senior Project Associate

Indian Institute of Technology Hyderabad, IIT
06.2023 - Current

Professional II Engineer

Capgemini Technology Services India Limited
09.2021 - 03.2023

Innovation Engineer

Nex-G Exuberant Solutions PVT.LTD
08.2019 - 07.2019

Technical officer

Electronics Corporation of India LTD
06.2018 - 06.2019

FME Engineer (Integration Engineer)

Shivam Infocom PVT. LTD
10.2017 - 06.2018

FM Engineer (Integration Engineer)

Manpower Group Services India PVT.LTD
07.2015 - 09.2017

Network Engineer

V.K. Technologies PVT. LTD
11.2013 - 07.2015

Testing Engineer

QUALCOMM TBS

B.E - Electronics and Telecommunication Engineering

S B Jain Institute of Technology Management & Research

After Diploma -

Diploma - Electronics and Communication Engineering

Shankarrao Dhawade Polytechnic

MBA - Finance & IT

Swami Vivekananda Subharti University

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CHANDRASHEKHAR B MESHRAM