Name

Suresh Kumar Enturu

Email

adjmjh@r.postjobfree.com

Phone

+91-964*******

Experience Summary

A Communication Engineer with over 8 years of Telecom, Modem and Network Testing experience.

Good Knowledge and hands on experience on Wireless Technologies: 5G NR, LTE, LTE-Advanced, UMTS, GSM,

HSPA, HSPA+ GPS, AGPS, NBIOT Based Location Services testing.

Worked on 2G, 3G, LTE, GPS Conformance/Compliance and Carrier Acceptance testing for US Based

Operators (AT&T, Verizon, T-Mobile).

Performed Filed test on EUROPE and EMEA Operators Onsite.

Knowledge of Conformance Testing, Operator (Verizon, AT&T, T-Mobile) Testing for GPS and GCF/PTCRB/Conformance testing, Black box Testing, Application Testing, Protocol Testing, Functional

Testing, System Testing, Stress & Load Testing, Regression Testing.

Worked on different SDLC models like Agile and v-models.

Experienced in Mobile Field Testing, AT-Command Testing, Non-Conformance Testing, Conformance

Testing and SIM STK Testing.

Strong knowledge of Android/RIL/QCRIL Working Knowledge of OTDOA, eOTDOA Logging.

Expertise in LTE/TDSCDMA/UMTS/GPRS/GSM L3, LPP, GTP, LOWI, GTS, LPPe protocols

Complete responsibility for (Testing, analyzing, bug reporting, status reporting and supporting

Development team) for LTE/UMTS/HSDPA/IRAT/GSM/GPRS testing.

Experienced in Mobile Field Testing, AT-Command Testing, Non-Conformance Testing, Conformance Testing and SIM Testing.

Good exposure on various Network Elements and their Interfaces (3G), Protocol Stack L3 layer (RRC, NAS (CC, MM, SM and GMM), L2 (RLC, MAC, FP, PDCP), RANAP (Iu-UP, GTP-U, and GTP-C), NBAP Protocol, SIP: SIP, RTP/RTCP, etc.

Good knowledge of HSDPA and HSUPA.

Understanding of Nodes: ENODEB, MME, SGW, PGW...

Understanding of LTE architecture, LTE attach procedure, EPS bearers.

Knowledgeable on Network & Protocol architecture of GSM/UMTS/LTE mobile technologies.

Understanding of call and message flow in GSM/UMTS/LTE.

Familiar with tracing tools such as QXDM, QPST, Wireshark, QMIC.

Good exposure to Android Mobile OS for L+L, L/W/G+G & W/G+G smart phone Features.

Knowledge of Software Development Life Cycle, Software Testing Life Cycle & Bug Life Cycle with good understanding & experience on Agile & SCRUM Methodology.

Hands on knowledge of AT commands for Handset testing.

Tools Known: Anite, Rhode and Schwartz, Spirent, Anritsu, Quality Center, Spirent ULTS, Spirent PLTS, Spirent RPS, TTCN Workbench, QPST, QXDM, Trace 32, etc...

Programming Language: Basics of C, TTCN3 and Perl and Scripting.

Skill Summary

Education

B.Tech in Electronics and Communications (JNTU).

Tools& Debuggers

Wireshark, JTAG, QXDM, QPST, QMI TestPro, JIRA,, APEX,

PDC, Crashscope, JIRA, Snapper, Lauterbach (T32) and Bugzilla

Protocols

NAS, RRC, RRM, MAC,PHY, SIP, Voip and SDP

Network/UE Simulators

Agilent 8960, Wireless One, Qualcomm TBS and R&S – CMW500, Anritsu, WILDCAT, Spirent, Spirent ULTS, Spirent PLTS, Spirent RPS, Anritsu, LTS, TTCN Workbench, GSS900,

GSS6700 Simulators, SimGen, Position Application, SIM & Anite USAT, Agilent,

COMPRION ITP3, CLA, MA, STT, UTP.

Processors

8939, 8916, 8976, 9x07, 8953, 8998, SDM845, SDM660, SDM670, SM6150, etc.

Project Summary

January 2019 – Till Date

Company: Tata Consultancy Services.

Role: SME – Functional and lab Testing.

Customer: Viavi (Cobham)

Functional and lab Testing of VIAVI Based TM500 Network Emulators.

Project Description:

Conformance and Protocol verification of TM500 Network emulators on GSM, UMTS, LTE, LTE-A, 5G NR technologies.

Roles and Responsibilities:

Performing protocol verification on Multi-RAT (GSM, UMTS, LTE, LTE-A, 5G NR).

Log analysis/ Debugging of lab and Customer reported issues.

Perform verification of protocol stack in accordance with 3GPP standards.

Conformance Test as per Network Emulator and operator requirements.

Test plan and test case design and development.

Created “Technical info sheet” and “Tool Requirements document” for proposed Throughput Analysis Tool for in-house development.

Issue discussion for priority, severity, possible root cause with clients during scrub meetings on conference call.

Testing of Modem Scenarios such as Handovers, Volte calls, Throughput, Carrier Aggregation, CSFB, SRVCC, LAA, VQT, EPDG etc.

Involved in Regression testing, system testing and End-to-End testing.

Debugging on Lab Issues and issue reproduction in offshore operator’s environment.

Other Responsibilities:

SME (Subject Matter Expert) on Telecom technologies which includes, CDMA, EVDO, 2G,3G,LTE and 5G NR.

As an SME training associates from Resource Management Group and placing them in Client Locations.

Conducting offshore recruitment from TCS Pool of resources and training them.

April 2018 – Jan 2019

Company: L&T

Role: Functional and Filed testing.

Customer: Symbol Technologies & Microsoft Corp.

Mobile field Testing (Dubai, France and Germany) on Qualcomm Chipset for Zebra and Microsoft handsets

Project Description:

Project involves performing Field Testing on Microsoft surface, Zebra Creemore tablets and Enterprise Mobile devices in multimode, Multi-RAT (GSM, UMTS, LTE, LTE-A) on Windows / Android platforms.

Roles and Responsibilities:

Performing Field Testing on Microsoft surface, Zebra Creemore tablets and Mobile devices in multimode, Multi-RAT (GSM, UMTS, LTE, LTE-A) on Windows / Android platforms.

Primary log analysis (On field) and on logs taken during Field Testing to identify defects if any.

Perform verification of protocol stack in accordance with 3GPP standards.

Conformance Test as per Network Operator requirements.

Test case planning for Data only enterprise devices (Tablets).

Created “Technical info sheet” and “Tool Requirements document” for proposed Throughput Analysis Tool for in-house development.

Issue discussion for priority, severity, possible root cause with clients during scrub meetings on conference call.

Field test covering all Modem Filed Scenarios such as Handovers, Volte calls, Throughput, Carrier Aggregation, CSFB, SRVCC, LAA, VQT etc.

Involved in Global LTE Field Test, Regression testing, system testing and Stability testing for various android versions Marshmallow, Nougat and Oreo on different Qualcomm chipsets(8965/SDM660).

Debugging on filed/ Lab Issues and issue reproduction in offshore operator’s environment.

Filing JIRAs for the same and following up till closure.

Performed Field Testing in counties – Dubai, France, Germany.

Sep 2016 - Mar 2018

Company: L&T

Role: GPS Conformance Testing

Customer: Qualcomm

GPS/AGPS – GCF/PTCRB Conformance Testing.

Project Description:

This Project Includes GCF and PTCRB testing on GPS modules of Qualcomm’s Modem Chipset. We perform operator specific acceptance testing for (ATT, Verizon and T-Mobile) and GCF/PTCRB conformance testing based on 3GPP requirements over different QUALCOMM chipsets.

Responsibilities:

Testing of 3gpp (37.571-1) LTE, WCDMA, 51.010-7 GSM, NBIOT related positioning and location services and handling GCF/PTCRB certifications using Network simulators like Spirent/R&S/Anritsu.

Operator Specific GPS, AGPS, GLONASS Conformance Testing.

Operator Specific (AT&T, Verizon, T-Mobile) conformance testing using Spirent LTS and TTCN Workbench Test Suites.

Testing the UE with respect to SUPPL2, LPP, RRLP, Otdoa, E-Otdoa, ECID, etc. and Android Location Framework Standards.

Testing UE with respect to the recorded playback scenarios using Spirent GSS6425 PRS Simulator.

Logging and Analysis using QXDM/ELT/TCP Dump/PCAP and field logs.

Field issue resolution/testing. Performing stability related automation testing (24x7) on Linux Android (LA) and Linux Wear (LW) devices.

Nov 2015- Aug 2016

Company: L&T

Role: Test Engineer

Customer:

Intel Mobile Communications.

UE Conformance Testing

Project Description: Project involves the system testing of GSM/WCDMA/LTE stack of various multimode wireless chipset's of Intel Mobile Communication.

Responsibilities:

Log analysis and debugging of GSM/WCDMA MODEM conformance testing and Beyond Conformance (Feature) testing based on 3GPP TS 34.123, 36.xxx.

Test scripts are developed in TTCN2\TTCN3. Debugging is done with the help of UE logs (IMC STT), Network side log (Anite Log viewer), and TTCN logs.

Creating Tickets (UTP) for new issues and Tracking of the tickets till closure

Company: L&T

Role: Test Engineer

Customer:

Intel Mobile Communications.

SIM/ SIM STK Testing

Project Description: Project involves the system testing of GSM/WCDMA/LTE stack of various multimode wireless chipset's of Intel Mobile Communication.

Responsibilities:

Log analysis and debugging of GSM/WCDMA MODEM conformance testing and Beyond Conformance (Feature) testing based on 3GPP TS 34.123, 36.xxx.

Test scripts are developed in TTCN2\TTCN3. Debugging is done with the help of UE logs (IMC STT), Network side log (Anite Log viewer), and TTCN logs.

Creating Tickets (UTP) for new issues and Tracking of the tickets till closure

June 2015- Nov 2015

Company: L&T

Role: Test Engineer

Customer:

Intel Mobile Communications.

Stability Testing (Product Development Testing) \ Field Testing .

Project Description: Project involves the system testing of GSM/WCDMA/LTE stack of various multimode wireless chipset's of Intel Mobile Communications (Android Platform).

Responsibilities:

Field and MTBF validation of Intel’s Modem Chipsets (7360, 74xx, 7272, Sofia LTE) covering all features like Voice, Data (Modem) on LTE, UMTS and GSM Networks.

Expertise in working on Android applications.

Involved in executing different OTA test cases using call, messaging and browsing apps.

Involved in executing different multimedia test cases using the apps like camera, music, and video.

Developed Adb scripts for android handsets using python.

Involved in Field testing, Sanity testing, Regression testing, system testing and Stability testing for various Intel based modem only chipsets.

Logging the defects in defect tracking tool for failed and blocking issues.

Part of Field test covering all Modem Scenarios like OOS, W->G, G->W, W-L, CSFB.

Involved in Sanity testing, Regression testing, system testing and Stability testing for various android version like KitKat and Lollypop on different Intel chipsets.

OCT 2014- May 2015

Company: Sasken communication technologies

Role: Test Engineer

Customer:

Qualcomm.

Stability Testing (Product Development Testing)

Project Description: Project involves the system testing of GSM/WCDMA/LTE stack of various multimode wireless chipset's of Intel Mobile Communications (Android Platform).

Responsibilities:

Writing Test Plan Specifications and Validation of Qualcomm’s Modem Chipset covering all features like Voice, Data (Modem) and their interactions with other applications on UMTS and GSM Networks.

Expertise working on Android applications.

Involved in executing different OTA test cases using call, messaging and browsing apps.

Involved in executing different multimedia test cases using the apps like camera, music, and video.

Developed Adb scripts for android handsets.

Involved in Sanity testing, Regression testing, system testing and Stability testing for various Qualcomm chipsets.

Logging the defects in defect tracking tool for failed and blocking issues.

Part of Field test covering all Modem Scenarios like OOS, W->G, G->W.

Involved in Sanity testing, Regression testing, system testing and Stability testing for various android version like KitKat and Lollypop on different Qualcomm chipsets.

Involved in Sanity testing, Regression testing, system testing and Stability testing for various android version like KitKat and Lollypop on different Qualcomm chipsets.

Company: Sasken communication technologies

Role: Test Engineer

Customer:

Qualcomm.

Mobile field Testing.

Project Description: Project involves the system testing of GSM/WCDMA/LTE stack of various multimode wireless chipset's of Intel Mobile Communications (Android Platform).

Responsibilities:

Part of Field test covering all Modem Scenarios like OOS, L-> W, W->L, W->G, G->W.

Involved in Sanity testing, Regression testing, system testing and Stability testing for various android version like KitKat and Lollypop on different Qualcomm chipsets (8916, 8936).

June 2011- July 2014

Company: E2E Corp.

Role: Test Engineer

Customer:

SIP.

SIP Registrar conformance testing.

Project Description: Project involves Conformance testing of a SIP registrar.

Responsibilities:

Writing test cases for SIP functionality to test the features of registrar and ensure Valid, Invalid and Opportune Behaviors.

To check the IUT on several occasions such as Authorization or a Proxy-Authorization which in turn sends an Unauthorized or Proxy Authentication Required responses?

Execution of test cases to check the features such as Binding, Authorization, Authorization failures, etc.,

Design and execution of test cases.

Used Wireshark Protocol analyzer to analyze the results and compare the actual results to that of expected ones.

Studying and analyzing the protocol documents like (RFC 3261, RFC 2543), ETSI TS 102 027-2.

Error or bug reporting using Quality Center.

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