Engineer Customer

A skilled Telecom Engineer with *+ years of experience in different areas - Wireless System Engineer and Device Certification, Modem Testing, Handset Testing, IOT, NB-IOT.

Experience Summary

Working for Nokia Corp –San Diego, CA as a 5G System Engineer to 5G IODT team.

Worked for Intel Corp –San Diego, CA as a Staff Engineer to test Modem chipset in USLATCAN & globally.

Worked for Intel Australia LTE Field/device testing team on behalf of L&T InfoTech for various testing like Multimode handsets testing, regression testing, performance and functionality testing.

Worked for Qualcomm Corp –San Diego, CA as a Senior RF Validation Engineer to test Modem chipset

Worked for ZTE Lab RAN testing, regression testing, performance and functionality testing.

Experience in Carrier Acceptance certification all US major carriers (Verizon- GCF,DFIT), AT&T (10776), T-Mobile(1038), Sprint, LAB Testing, IOT, NVIOT, Functional, KPI testing (ex: Data throughput/latency testing, Call Processing/audio quality testing, Stability testing of network, Stress/cell shrinking test (peak and unloaded test of network)).

Skills

Technology

NR/LTE,UMTS, CDMA,EVDO,GSM

Telecom Products

CDMA BTS, MSC, GSM BTS, RNC, MSC, AAA, HA.

Tools /DB/Packages

Drive test tools like TEMS, XCAL. Post processing tool like MapInfo, ACTIX Analyzer. Anritsu Spectrum Analyzer, Bird, Anritsu, Agilent, R & S, MTI CDMA link master, Agilent Base Station Tester etc. Lucent RMT, QPST, QXDM, Wire shark, TTCN-2, TTCN-3 JTAG, STT, EMIL, SYSLogs, Sherpa CAPS etc..

Handset Exposure

LTE,CDMA,EVDO,UMTS & Dual mode phones

I chipset -7160, 7260, 7360, 7480, 7560, 7420 etc..Telit LM960,LE910, LM940.

Operating System

Windows, IOS, Unix, Android, Brew and Linux.

Personal Details:

Name

RAJEEV VARMA RAJAKAKARLAPUDI

Citizenship & Visa

Indian, H1B visa

Contact Details

email – ********@*****.***

Phone - 484-***-****

Address

15086 Avenida venusto Unit #225, San Diego, USA-92131

Education & Credentials:

Bachelor’s Degree in Computer Science Information Technology, JNTU University, India

Project Details:

Project Name

5G IODT System Engineer

Team Size

13

Start Date

May 2018

End Date

Till date

Description

The project involves the testing of 5G NR in live network based on customer specifications. Testing of this project involves, Joint testing BW Qcomm(SDX60/SDX50/X55/X60 NR) the complete system functionalities like System determination, Registration, Call processing, Handoff, roaming, LBS LTE, Band conformance and features such as Voice service conformance, SMS, MMS, concurrent services etc., and also analyzing L1,L2 and Sanjole logs.

Role & Contribution

Responsibilities:

Design, Development and IODT testing of Radio access network technology on Nokia NR/5G network.

IODT Team lead for OTA (5G) technology within the systems verification NRT/FIT team.

Test cases planning including reviews/analysis of feature specifications

Test specification work including creating/updating/reviewing test documents (i.e. test plans, test cases, test reports, feature specification, instructions, etc)

Perform inter-operability testing with OEM/Chipset vendors in Nokia lab and if needed in the customer lab

Install, commission, and integrate 5G gNB and 4G eNB in test environment

Testing and reporting for assigned test cases

Fault investigation/reporting which includes cooperation with other teams

Provide remote and/or on-site support to Nokia Test Teams on site and/or in customers lab.

Analyze logs and troubleshoot problems from the field and customer lab

Systems verification and end to end performance testing of advanced NR/LTE features, hardware and software development.

Plan and execution of the certification activities.

Understand the requirements and discuss with Qualcomm,

Customer and Simulators as required.

Pre-test of the Form Factor device with AT+CP solution.

Support customer Certification onsite.

Analyze and provide Fix for the issues with quick turnaround time.

Perform Network optimization, recommending parameter changes to improve KPI.

Performed analysis for areas with poor RF conditions, caused by Signal overshoot, Ec/Io and BLER, Site issue, Network issue, Site configuration, Poor uplink, Missing Neighbors.

Other activities include:

Feature test analysis and Crash analysis.

Raising new UTPs, deep analysis of the issue.

Re-test, Verification of the fix.

FT issue resolution.

Test case enhancements.

Technologies

5G, LTE

Tools

XCAL, BTS Analyzer, NetAct, QXDM, Wireshark

Project 2:

Project Name

Qualcomm IODT(Nokia)

Team Size

5

Description

Development engineering team that is focused on support of key customers and lowering their time to market. Run test automation and analyze results of physical layer standards and feature testing for LTE, 5GNR sub6, and 5GNR mmW.

Role & Contribution

Responsibilities:

Test planning, execution, and troubleshooting for RF software/systems issues.

Work with software/hardware/systems teams to identify root cause of verification failures.

Technologies

mMW, Sub6, LTE,

Tools

ATM, AXIOM, QXDM, QCAT, Keysight UXM, Anritsu MT 8000A, MA80002A

Project: 3

Project Name

Modem Chipset Testing & carrier certification for INTEL, San Diego

Team Size

40

Start Date

Jan 2011

End Date

April 2018

Description

The project involves the Carrier Certification testing of modem chipsets globally in live networks based on customer specifications (Verizon, AT&T, TMO & Sprint, Apple IWatch). As an important part of the product life cycle, the test team is focused on both controlled & live networks. This project involves, testing the complete system functionalities & KPIs., and analyzing logs.

As a member of the Modem System Test group, responsible for certification execution on the latest test devices and software, troubleshooting issues found, collecting Key Performance Indicators.

Role & Contribution

Responsibilities:

Execution of certification testing based on customer specifications: Verizon(GCF/DFIT), Sprint, TMO(1038) & AT&T(10776)

Lead test trips, Lead cross-functional teams in Design for Quality initiatives

Testing, system debugging & analyzing, finding bugs and reporting them to development teams

To track the issues and update them regularly till resolution

Responsible for debugging UE Modem issue related to Call Drop, Throughput, and Handover etc. on Intel Chipset for LTE,2G,HSPA+,R99,HSDPA,HSUPA

Working extensively on providing technical support for Mobile Platform features but not limited to these: Attach, Detach, RRC Establishment, RRC Reestablishment, Measurement, Random Access, Scheduling Request, Discontinuous Reception, Location Update, Routing Area Update Tracking Area Update, Intra Handover, Inter RAT Handover, Active Set Update, MO CSFB,MT CSFB, VOLTE Attach, TTI Bundling.

Responsible for analyzing UE Modem Crash and then narrowing it down to a Module level and then redirecting it to the Intel SE for providing fix for LTE,2G,HSAP,HSPA+,R99,HSDPA,HSUPA

As a leader ensured that product meets carrier and internal requirements and deliverables

Understanding IMC_REGI test environment

Development of Test flow document & Message Sequence Chart

Development of TTCN scripts using TTCN-2

Verification of GCF (TS 34.123.1 Section 8 and 14) and non-GCF Test cases

Debugging of TTCN scripts & System Simulator code.

Technologies

LTE, UMTS and GSM.

Tools

STT, MA, IRTC. R&S CMW500, Spirent, Anite log exposure.

Project 4:

Project Name

ZTE Telecom RAN Test Engineer

Team Size

16

Start Date

November 2009

End Date

Dec 2010

Description

The project involves operationally focusing in test case design, cross-functional test plan reviews, identifying gaps, test case execution, and detailed analysis of results. RAN feature testing and validation of the new releases, debugging of issues seen during performance test. Overall looking into the new features starting from developing the LFD and writing test cases based on the requirement of the customer. Performing regression tests as well as helping RAN team and performing IOT testing. Identifying and resolving issues in minimal time and Co-ordination with development.

Role & Contribution

Responsibilities:

Responsible for commissioning, troubleshooting, and integrating wireless voice and data BSS(BSC/BTS) and EnodeB Network and subsystem for WCDMA,LTE technologies. using tools like (BTS Site Manager), Putty, Element management system etc

Ensured that the performance of the ZTE hardware and software products was tested against company Acceptance test procedures (ATP) and met customer specification.

Created methods of Procedure (MOP) necessary to support hardware expansions and implements software upgrades and patches in customer network.

Trained customer personnel (engineers, technicians and installers) to execute the procedures.

Troubleshot, resolved and escalated system and subsystem configuration, interface, hardware, software and/or data faults.

Managed on-site actions necessary to successfully meet test and verification milestones.

Functional test of ZTE RAN.

ZTE successfully completed Inter-RAT.

UMTS,GSM to LTE Reselection.

PS HO from E-UTRAN to UTRAN.

GBR.

AMBR

Technologies

LTE, 3G

Tools

ZTE Platform tools. ZXPOS CNO1(Communication Network Optimizer), ZXPOS CNA1(Communication Network Analyzer---ZXPOS CNA1)

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