Work Experience

MBit Wireless Private Ltd, Chennai,

**** ** **** ****

Current Designation /Role :

Sr. System Test Engineer/QA Lead

Key Skills

Test scenario - Test plan creation

Bug tracking- issue resolution

Log analysis, issue identification, reporting

4G/5G Global Field Testing

Competitive product bench mark testing

Extensively experienced in using

R&S-CMW500 and AeroFlex

Task Vs Resource Management

Documentation & Reporting

Team Leadership

Soft Skills

Objective

To pursue a professionally challenging career in

opportunity to learn, innovate, lead, contribute

deliver results for the growth

Profile Summary

Seven plus years of result driven experience in 4G/5G LTE downlink/uplink PHY testing,

product HW/software testing, application/middleware software testing and ensuring zero defect QA deliverables

Have extensive knowledge on

specifications (M

3GPP conformance test specifications

Accountable for

CAT4, CATM, NB

silicon platform

Accountable for

router, LTE M.2 Card, FOF Gateway)

performance against competitive product

Accountable for

the sensor data to AWS and Azure cloud server

Developed

developed

Conducted in

testing and report generation for 4G LTE CAT1/CAT4 modem Conducted extensive

cellular network operators (US/Korea/China/India)

LTE modem call stability and data throughput performance against competitor modem. Global field testing has been conducted with remote automation setup Extensively experienced in using 4G/5G modem testers AeroFlex

Extens

tracking and taking the issue closure by closely working with the development team

Qualified several network, middleware and application software IPv6, DHCP, MBIM, RNDIS,

Proposed ten

reduced the test time by 50

Devised 400

and ensured very high stability

Have very good experience in

global QA support and QA team performance tracking, reporting and improving team efficiency

Competent in controlling all quality activities of the project Analytical Collaborator

Leader Communicator

Thinker Planner

Objective

To pursue a professionally challenging career in an organization that offers me an opportunity to learn, innovate, lead, contribute in HW/SW product qualification deliver results for the growth of the organization Profile Summary

Seven plus years of result driven experience in 4G/5G LTE downlink/uplink PHY testing, LTE protocol software testing product HW/software testing, application/middleware software testing and ensuring zero defect QA deliverables

Have extensive knowledge on 3GPP R8/R9/R13/R15 LTE protocol specifications (MAC, RLC, PDCP, RRC, EMM, ESM, PLMN, AT Command) and 3GPP conformance test specifications

Accountable for qualifying four major generations of LTE modem(CAT1, CAT4, CATM, NB-IoT) in both FPGA development platform and in post tape silicon platform

Accountable for qualifying customer products (LTE mobile hotspot, LTE CPE router, LTE M.2 Card, FOF Gateway) and benchmarked the product performance against competitive product deployed in the market Accountable for qualifying the CPE router &sensor gatewa the sensor data to AWS and Azure cloud server

Developed 1500 unique test cases for 4G/5G LTE modem qualification developed 800 unique test cases for customer products Conducted in-house 3GPP conformance PHY/RF/Protocol testing testing and report generation for 4G LTE CAT1/CAT4 modem Conducted extensive live network field testing for 4G/5G modem in global cellular network operators (US/Korea/China/India)

LTE modem call stability and data throughput performance against competitor modem. Global field testing has been conducted with remote automation setup Extensively experienced in using 4G/5G modem testers AeroFlex

Extensively experienced in log analysis issue identification, reporting, bug tracking and taking the issue closure by closely working with the development team

Qualified several network, middleware and application software IPv6, DHCP, MBIM, RNDIS, SMS)

Proposed ten plus automation framework for the in-house productivity tool reduced the test time by 50%

Devised 400 plus test cases for the in-house productivity and and ensured very high stability

Have very good experience in QA team task planning, 24/7 shift planning for global QA support and QA team performance tracking, reporting and improving team efficiency

Competent in controlling all quality activities of the project an organization that offers me an

in HW/SW product qualification and

Seven plus years of result driven experience in 4G/5G LTE modem LTE protocol software testing, customer

product HW/software testing, application/middleware software testing and 3GPP R8/R9/R13/R15 LTE protocol

AC, RLC, PDCP, RRC, EMM, ESM, PLMN, AT Command) and qualifying four major generations of LTE modem(CAT1, in both FPGA development platform and in post tape-out LTE mobile hotspot, LTE CPE

benchmarked the product

deployed in the market

qualifying the CPE router &sensor gateway for publishing unique test cases for 4G/5G LTE modem qualification, unique test cases for customer products

3GPP conformance PHY/RF/Protocol testing, VZW SFN

testing and report generation for 4G LTE CAT1/CAT4 modem field testing for 4G/5G modem in global

cellular network operators (US/Korea/China/India) and benchmarked the LTE modem call stability and data throughput performance against competitor modem. Global field testing has been conducted with remote automation setup Extensively experienced in using 4G/5G modem testers R&S-CMW500 and log analysis issue identification, reporting, bug

tracking and taking the issue closure by closely working with the Qualified several network, middleware and application software (IMS/SIP,IPv4, house productivity tool and

house productivity and automation tool

team task planning, 24/7 shift planning for

global QA support and QA team performance tracking, reporting and Competent in controlling all quality activities of the project Technical Skill sets Summary

3GPP (R8/R9/R13/R15) LTE protocol (MAC, RLC, PDCP, RRC, EMM, ESM, PLMN, AT Command LTE Certification and IOT 3GPP Conformance, PTCRB, VZW SFN, ATT, KT, SKT, 7Layers Network Emulators R&S CMW500/AEROFLEX-7100/CMWRUN, Logic Analyzer Version Control tools CVS/SVN/Git

Debugger Tools Lauterbach(Trace32),LTE Protocol Message Analyzer Wire shark, Omni Peek, Beagle USB Analyzer

Bug Tracking Tool Trace Tool/BugZilla/MPM

Test platform FPGA, ASIC, PeNB(LTE BSE SW Emulator),Custom HW Scripting Languages Perl & Python

Development Platforms Linux/Windows/Mac

Project Summary

Project#1 : CAT-M1/NB-IOT (Release 13 and Release 15) Responsibilities:

Devised a test plan with 300 plus test cases to test the LTE CATM/NB-IoT modem Tested PHY functionality on CAT-M1/NB-IOT in lab/live network with supported bandwidth/MCS/Radio Bear configuration

Conducted ping, throughput and stability test scenarios across multiple vendors and for various LTE band class and compared the field performance against the compititor device Performed 3GPP conformance testing for LTE CATM and NB-IoT protocol software (R13, R15), indentified 100 plus issues, track the issues, follow up on SW fix to resolve issues and stabilized the SW Automated the field test cases and reduced the test time by 50% Devised the test plan for weekly PHY build and SW build TAG creation process with Level-0/1/2 test cases

Project#2 : MTT/MCT/MPA Tools In-house certification Responsibilities:

Devised a test plan with 1500 plus testcases and tested varoius scenariosfrom the customer prespective and reported 250plus issues

Orientedthe team members for creating the in-house use-case scnarious with end-user prespective and have them generated 2500 plus test cases and provide review comments Accountable for bug tracking, issue resolution seeking, test planning and re-running and stabilized the SW tools with zero crash

Automated the test case execution using PERL scripting, reduced the test execution time by 60% Project#3 : LTE CPE Router / FOF Gateway

Responsibilities:

Accountable for testing the FOF gateway for SNMP monitoring deamon, SNMP JSON queue, JSON packer, JSON MQTT queue, MQTT client deamon

Developed a test plan with 150 plus test cases and performed testing of various modules forFOF and submitted reports to the integration partner

Qualified the temperature/pressure sensor data upload to Azure and AWS cloud sever through Android Apps

Taken complete responsible for test reporting generation, review and customer report submission Taken a lead on the joint integrationvalidaiton along with the customers/partners Connected 32 Wi-Fi clients,performedconnectivity and stability test for all the client devices simulataneously and identified 50 plus issues, tracked the issues to closure Devised test plan and identfied critical issues and closely worked with the development team to achive a maximum stability on theLTE CPE router for 30 days of continued operatin with zero reset/crash

Project#4 : LTE Mobile Hotspot (HSP)

Responsibilities:

Developed 200 plus user test case scenarios for 4G LTE + Wi-Fi integrated mobile hotspot device Developed the test plan and qualified the web browser/web GUI for device configuration Manager Identifying critical scenarios that impact user experience on cellular services, mapped such scenarios to modem procedure and designed and tested the scenarios in the lab with network simulators Automated the test setup with 10 Wi-Fi client devices and performed 24/7 testing to identify the stability issues

Identified several critical issues and worked with development team to resolve the issues and demonstrated a stable hotspot platform in Korea, China and in India network operators Successfully conducted the RF performance testing and report generation for product certification Devised the produt test plan for weekly HSP SW build sanity and weekly regression testing for cutomer release

Project#5: VoLTE (IMS/SIP)

Responsibilities:

Developed the test plan with 250 plus test casesfor call control procedure for VoLTE device Taken complete responsibility for testing, issue analysis of call flow requests, responses, call waiting, call barring, 3-way calling and other featuresinvolvig SIP, TCP, UDP, LTE-EPC and IMS Protocols

Taken a lead on the in-house VoLTE testing with CMW-500 and reported the results to the LTE/SIP/IMS integration team and closely worked with them for issue resolution Sucessfully stabilized the VoLTE call control procedure feature in the lab and in the live network Project#6 : 4G LTE Modem M.2 Card (LTE Modem Card for Global Network) Responsibilities:

Performed field test for various operators across the globe such as Verizon, ATT, Sprint, Korea Telecom, South Korea Telecom, China Mobile, China Telecom, Airtel, Idea and Jio and analyzed the field test logs, created bug tickets.

Performed RF Calibration for various designs of RFSS cards. Driven RTL modem qualification test cases for silicon tape out and provided sign off. Performed GCF certification(7Layer, External Lab) test cases in CMW and shared reports. Tested customer level scenarios across vendor based bands for protocol Stack scenarios, L1- DL,MAC layer level test scenarios and PHY performance test scenarios Devised the product test plan with automatin for 15days PE SW reease turn around time Project#7 : 4G LTE CAT1/CAT4 (Rlease8 and Release 9) Responsibilities:

Devised a test plan with 250 test cases to test the CAT1/CAT4 sysytem andthroughput testing Performed LTE CAT1/CAT4 throughputtest includes configuring platform, UE & session parameters setting up a UE with data client

Performed FTP/UDPdata transfer and application layer throughput stress test to achive data stabiity

Responsible for tracking weekly issue closure, SW task check-ins and weeklySW sanity planning. Devised a test plan to complete the weekly SW sanity within 6hrs of SW release Performed benchmark testing for LTE test UE with Reference devices such as Quectel BG96, Quectel EM05 chipset and posted the comparative performance metrics. Automated the field test cases and reduced the test time by 30% Education

B.E. (Electronics and Communication Engineering), 76%from Anna University, Year 2011

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