Device Test Engineer

Phone: (714) 686-3114                                                               

Email: v_soulfly@hotmail.com

Vishal Maheshwari     

 

Qualifications Summary:

Over 3 years of varied experience in Wireless Communication in the areas of Device Testing plus Network Testing of LTE and UMTS, CDMA networks with background in Wireless Communication and have in-depth business process knowledge. Pro active, highly motivated, organized and result oriented together with excellent communication and written skills.

 

 

Client: Samsung Telecommunications (TechMahindra Inc.)        May 2013-Present

Role: Device Field Test Engineer

Samsung Telecommunications America (STA) is one of the world's leaders in telecommunications, Today; STA's Mobile Handset division remains the fastest growing business segment in the history of its parent company, Samsung Electronics, Ltd. Brand Keys, Inc. has recognized the division as the number one mobile phone manufacturer in customer loyalty for five consecutive years and it is a driving force that has allowed Samsung Electronics to become the fastest growing brand in the world.

·                     Working for device verification stage of different upcoming projects on live network for hardware and software stability.

·                     Working closely with R & D and Developers to improve quality and stability on different strategic projects.

·                     Expertise in processing calls for the CDMA and GSM devices and following the test plans for different carriers such as Verizon, AT&T, Cricket, MetroPCS, and USCC.

·                     Test Scenarios include Handovers intraeNB/intereNB, Multi –UE Throughputs, latency, Connection Reliability, DT Performance, MME HO testing, using TCP, UDP and FTP among others.

·                     Ran Domestic FIT consisting of Interim IPv6 in eHRPD , LTE  and 1X testing plans.

·                     Feature Conformance stress testing including, SMS over IMS , Registration, SIP Registrations , Timer Based registration, TAU , IMS Reregistration’s and Extended LTE in IRAT testing.

·                     System testing, performing field test, application testing and writing and modifying different test cases for different projects on different carriers like Verizon Wireless & AT&T.

·                     Performing 16411 Field Test Specification V4_1 for AT&T including Network Selection, EONS, Call Processing, SMS Operations, MWI, MMS Interoperability test, 3G Data Performance, 3^rd party streaming test, Handover Reselection, Multiple PDP Support, Common data Stack test cases, User Experience & LTE Data Performance test cases.

·                     Performing Intra-Rat Mobility test cases, Mobility Management, MIMO SFBC test cases, LTE CSFB test cases, 3G & LTE throughput data test cases & Drive Mode test cases on live network of AT&T.

·                     Working on Spirent Datum Test Tool for 3G & LTE data performance and throughput data test cases.

·                     Performing Call Performance with Metrico Wireless Nomad kit for Android & Windows phone to find out Call Initiation & Retention Performance, Audio Verification Performance, Signal Strength Performance & Battery Performance to find out over all Device Performance than submit to R&D to improve quality and stability of device.

·                     Performing VoLTE Test cases over GSM Live Network for IMS Registration, VoLTE Call Processing, VoLTE Supplementary Services Management, VoLTE Intra LTE Mobility, VoLTE Inter RAT Mobility, SMS Over IP, CSFB & SMS over SGs Handling by VoLTE Mobile (USSD is included), Conference focus, VoLTE to Non-VoLTE Border, MWI, SMS Over IMS, User Experience & VoLTE call with Interactions test cases.

·                     Working on VoLTE Feature Test Plan over GSM Live Network like HD Voice test plan, Video test plan, EAB test plan, cross-functional test plan & Wi-Fi test plan.

·                     For CDMA Network, performing VoLTE Test Cases for Functional Test cases like IMS registrations, EAB Functionality, Voice/Video call feature & establishment test cases, Supplemental features, Interaction test cases, Mobility test cases & Performance test cases.

·                     For CDMA Network, performing VoLTE Test case for Performance Test Cases like VoIP/Voice media flow test cases, VoIP call setup test cases, LTE video calling call setup test cases & LTE Video calling voice and video media flow performance test cases.

·                     Performing Domestic FIT Test Plan for Verizon Network on routine bases, which include Marginal/Mixed Coverage Voice CP, Marginal/Mixed Coverage UE LTE Data Call, 1XRTT/EVDO/LTE Data Performance, PTT Performance/Function Test case & Feature Conformance Test cases.

·                     Performed E911 Testing Using GPS-Field Test Tool with Configured POSITION ERROR Ratios for different Network Providers.

·                     Performed Vocoder Selection using EvRCB and different service option.

·                     Worked on Different CS and PS scenarios for Verizon testing using SVLTE and SVDO operations from the UE.

·                     Test Scenarios include Handovers intraeNB/intereNB, Multi –UE Throughputs, latency, Connection Reliability, DT Performance, MME HO testing, using TCP, UDP and FTP among others.

·                     Proficient and excellent skills in using Mobile-testing tools like QXDM, QCAT, QMICM, QPST, XCALL, ETS & WireShark.

·                     Analyzing QXDM logs through QCAT/Wireshark to identify some initial or basic failure for LTE attach and SMS sent/receive, TAU update, handovers etc., which will be useful in debugging issue.

·                     Working with Internal Departments to complete automation testing (Tools likes FTAT & IMS Logger) using various scripts.

·                     Rising Defect on Samsung Centralized system called PLM and follow the details until it is closed and if needed further support has been provided.

·                     Attended weekly meetings to present the work status report and defect status report.

 

 

 

Client: Samsung Telecommunications (Blue Telcom Inc.)          Dec 2011-May 2013

Role: Field Test Engineer

·                     Strong Experience with GSM, CDMA, LTE, UMTS wireless technologies

·                     Experience with QXDM, QPST, QCAT, QMICM, XCAL, ETS and Android SDK logging tools.

·                     Working on system testing as well as network testing of various smartphones and tablets.

·                     System functionality, User interface testing as well as network testing using various tools like QXDM, QCAT, QMICM and Agilent 8960.

·                       Performing various field-testing of devices using QXDM and ETS, collecting logs to review by Protocol engineers.

·                     Network interface testing and collecting logs using AP Logs, Dump Logs, RDX tools (Extractor Tool for Ram Dump), and TCP logs.

·                     Collecting logs for various devices to check the functionality and network connectivity using Through Put Testing, Regression Testing, KPI Testing, and Sanity Testing.

·                     Collecting all logs and organizing it to make it daily reports and uploading it to server.

·                     Experience performing various RF Tools likes Agilent, QXDM, ETS and TEMS.

·                     Experience with Issue Reproduction like Data Icon Loss, No RSSI, and No Service, IPv4 & IPv6 test cases, Drop Call, Audio Mute test & Data Stall.

·                     Experience with CP Crash, Kernel Panic Upload Mode, Power Reset & Modem Crash issue.

·                     Experience with Different User Equipment like Phone, Tablets & Notes.

·                     Worked with R&D Department on Issue Reproduction of various UEs and daily regression field test.

·                     Experience with Binary Flash for various UEs, Including Engineering & User binary full regression field test.

·                     Experience with Upgrading UE software like Odin3 and Samsung PRL.

·                     Experience in setup and troubleshooting of computer networks for configuring APNs for the test cases.

·                     Good experience in performing automation testing for various devices and tablets using various scripting languages.

·                     Experience in mentoring teams and excellent presentation and communication skills, Team Player, Quick Lerner, Organized and Self Motivated

·                     Enthusiastic to learn new Systems and technologies and fast adaptability to new platforms and environment.

 

 

Client: AT&T Mobility (3S Network Inc.)                                             June 2010-Sep 2011

Role: RF Engineer (Tuning and Support)

 

AT&T Mobility is the second largest wireless telecommunications provider in the United States, offering 2G, 3G and 4G services on GSM, UMTS and LTE technology. AT&T Mobility is technology leadership, combined with broad product expertise and capabilities, enables us to find solutions to customer challenges.

·                     Worked on test scenarios for locked and free float UE testing and integration testing for all UEs i.e. LG Connection manager, sierra wireless card and HTC Smartphone.

·                     Project Planning, developed functional and technical specs, test plan and configure components to test 4G LTE network using LG Connection manager, sierra wireless card and HTC Smartphone.

·                     Prepared KPI reports for Drop Call Percentage, Block Call, Call Setup success Rate, CS/PS origination failures, and Handover success ratio

·                     Discuss the reasons for these problems with RF engineers and troubleshoot on the spot and conduct further test.

·                     Constantly keep contact with the RF engineers to update the status of the process.

·                     Keep documented record of dropped calls, blocked calls, call end, mobile disconnection and missing neighbor.

·                     Discuss the reasons for these problems with RF engineers and trouble shoot on the spot and conduct further test. 

·                     Perform site verification and missing neighbor detection using drive test data.

·                     Laying out business process and determining business requirements for rollout process.

·                     Prepared and tested all test cases for full shakedown test: Download/Upload using TCP and UDP protocols, Inter sector Handover and IRAT Handover.

·                     Worked on Map Info and Microsoft Streets and Trips to design cluster map and different route to solve general or particular site or Handover issue.

·                     Planned and coordinated activities of Drive Test Teams functions to ensure accurate and timely delivery of test record data.

·                     Worked extensively on Drive Test support to help drive test team find the best location by azimuth and other criteria for testing.

·                     Management review with steering committee, auditing of project success and reporting thereof.

·                     Work with Project team members to document functional and technical requirements.

 

Client: Ericsson                                                                                       Sep 2009- May 2010

 

Ericsson, one of worlds’ largest mobile Network service provider companies, is a provider of telecommunication and data communication systems, and related services, covering a range of technologies, including especially mobile networks.

 

·                     Done pre launched shake down testing of sites for MetroPCS 4G project in Los Angeles With Samsung UEs.

·                     Observe layer 3 messaging and report anomalies during attach, detach, reselection and handover.

·                     Used LGE LTE Diagnostic Monitor (LLDM) for collecting data over LTE network Perform extensive mobility and stationery LTE test (UL/DL) using TEMS 11.0.4,Samsung/LG UEs and PcTel LTE Scanner, such as: LTE Handovers (High/Low Speed) & LTE UL/DL throughput tests (UDP/TCP)

·                     Shakedown testing for 4G (LTE) network of MetroPCS using TEMS Investigation 11.0.4.

·                     Performed stationary Upload and Download testing for each sector to verify Azimuth, throughput and accessibility.

·                     Had cluster drives with scanner and performed Retain ability and Accessibility Test for many LTE systems.

·                     Performed cluster accessibility and retain ability drives.

·                     Created cluster drive routes using Map Info

·                     Monitored Azimuth, IRAT handover, single cell coverage, swap sector and SC consistency check, access failure and drop call and handover Issues.

·                     Monitored IRAT Handover (UMTS to GSM) from Layer3 Massages with different Handset I.e. Samsung, Sony Ericsson W995

·                     Monitored and reported Soft, Softer and Intra RNC handover using Layer 3 Massages before and after Re-homing Performed Cluster drives using TEMS Investigation (8.2.2 -13.0.1) and Agilent E6474A with multiple handsets.

·                     Monitored Key Performance Indicators like RSCP, EC/No and SINR for scanner and multiple UEs.

·                     HSDPA and HSUPA testing, signal verification, data collection of Outdoor Repeater Sites and 3G Outdoors sites using AGILENT 6474A.

·                     Functionality testing, Intra Frequency Handover (between UMTS and UMTS) and IRAT Handover (from UMTS to GSM and LTE to UMTS) testing.

·                     Sector verifications, Soft Handover, Softer Handover, Intra RNC handover Testing.

·                     Evaluated QCP for throughput and handovers with 3 separate UEs for AT&T UMTS networks in Tulsa and Los Angeles market.

·                     Used Microsoft Streets & Trips for route determination & navigation.

 

 

Masters of Management                                                                                                                Present

Goldey Beacom College, Delaware

Major: Management Science    

 

M S, Mechanical Engineer                                                                                                         Dec 2009

California State University, Los Angeles

Major: Control & Aerospace Engineering   

 

B.E. Mechanical Engineering                                                                                                           June2007

Gujarat University, India                                                                                                                                                                  

 

 

 

RF Measurement Software: Agilent 6474A, TEMS 9.1/10.1.1/10.1.2/11.0.2/13.0.1.

RF Post Processing Tool: ACTIX spotlight and TEMS Discovery

Device Logging Tools: ETS, QXDM, QPST, QCAT, XCAL & RDX

Test Cases: Regression Testing, KPI Testing, 16411 Field Test Specifications, Domestic FIT Test Plan, VoLTE testing Sanity Testing, Throughput Test Cases, Issue Reproduction, and IPv6 & IPv4 Test Cases

Wireless Planning & Propagation Tool: ATOLL

Mapping Software: MapInfo

Navigation Tool:  Microsoft Streets & Trips

Wireless Protocols: GSM, WCDMA/UMTS, & LTE

Network Protocols: TCP/IP, UDP and HyperTerminal.

OS:  MS-DOS, Windows 98/NT/2000/XP/Vista/Windows 7, Mac OS X, Linux and UNIX

Programming & Scripting:  knowledge of C, C++, Visual Studio, HTML, Assembly and Java.

Microsoft Applications:  MS Word, MS Excel, MS PowerPoint, MS Project and Outlook.

 

 

References will be available upon request

 

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