LTE Optimization / Testing

SUMIT BHATIA

E-Mail: *********@*****.*** ~ Mobile: +91-769*******

Seeking Senior level RF/Testing assignments in IT-Wireless Industry

Professional Synopsis

Seasoned professional with 9 years of rich experience predominantly in Wireless Technologies and Testing

within India, USA and Japan.

Possess a clear understanding of the IT-Wireless industry trends with the distinction of instituting quality

practices to achieve excellence.

Onsite experience at Meritech Co., Ltd. [Tokyo, Japan]

Cleared Scrum Fundamentals Certified Credential from Scrum Study

Completed e-learning program on LTE Air Interface from MobileComm Professionals Inc.

Completed a certification program in LTE RF Optimization from NEX-G Exuberant Solutions

Knowledge & Core Competencies

Expertise in LTE-A (Carrier Aggregation), VoLTE, LTE, 3G and 2G Testing

Very good understanding of Software Development Life cycle

Excellent exposure to all QA Testing Methodologies like functional, scaling, longev ity, performance, soak,

regression, system-integration and conformance testing

Have good exposure to Agile [Scrum] Methodology

Possess excellent skills in designing, developing & executing test-cases

Good Exposure of wireless technologies [LTE/HSPA/WCDMA/EDGE/GSM]

Have experience in writing technical specifications for LTE/WCDMA/GSM Parameters using Log Packets

Hands on Experience in Field testing, IRAT Testing, Handover testing, and Data Throughput/Latency

testing

RF Expertise [Handover Analysis / CSFB Analysis / VoIP Analysis / Call Flow Analysis / Call Drop

Analysis / Low Throughput Analysis / NAS Analysis / SMS Analysis / Cell Selection-Reselection

Procedure / Connection-Release Procedure / Layer 1-Layer 2-Layer 3 Data Validation]

Hands on experience in analyzing Coverage, Interference, Overshooting, Sector Swap, PCI Conflict and PCI

Collision issues

Testing success and failure rate for various LTE parameters such as RRC Setup, ERAB Setup, Mobility

(Intra frequency HO, Inter-Frequency HO, I-RAT HO), Attach-Detach

Knowledge on RRC and NAS Functions [EPS Mobility Management, EPS Session Management & EPS

Connection Management]

Gaining knowledge on LTE RACH Analysis

Tracing QoS Parameters [EPS Bearer ID, EPS Bearer State, Connection ID, Linked EPS Bearer ID, QCI,

MBR, GBR] from Layer3 Messages and Log Packets

Gaining substantial exposure of VoLTE [SIP Call Flow, RTP Analysis, POLQA MOS, QCI]

Skilled with using tools QCAT, QXDM, QPST, Wire Shark, TEMS, ASCOM QVOICE, SwissQual Diversity,

Netpersec, TFS, Bugzilla

Hard-working, aggressive, good team player, quick learner with ability to adapt to changes in domain

An effective communicator with excellent relationship building & interper sonal skills. Strong analytical,

problem solving & organizational abilities. Possess a flexible & detail oriented attitude

Organisational Experience

Company Designation Tenure Role

Understanding the requirements /

Reviewing and Validating Specifications

/ Writing down the specifications / Black

Box Testing / Soak Testing / Performance

Testing / Load Testing / Creating test

plans and test strategies / Documenting

defects / RF Analysis + Solutions / KPI

Meritech Software Calculations / GUI Solutions / Product

Pvt. Ltd. QA Lead - RF February 2013 – till Management-Enhancement / Managing

[Chandigarh, India] Applications date a team of 4

Reviewing and Validating Specifications

/ Black Box Testing / Soak Testing /

Performance Testing / Load Testing /

Meritech Software Creating test plans and test cases /

Pvt. Ltd. Application May 2011 – January Documenting defects / RF Analysis +

[Chandigarh, India] Engineer 2013 Solutions / KPI Validation

Reviewing requirements / Creating Test-

Virtue Group Software October 2008 – cases / Documenting defects / Black Box

[Georgia, USA] Engineer [RF] December 2010 Testing / Drive-testing / Analyzing data

Supervising 3D modelling drawings /

Preparing simulation environment to

Design World Inc. June 2001– March understand applications / Analyzing

[Pune, India] CAD Engineer 2004 design specifications

KEY RESULT AREAS:

Skills / Tools

Reviewing system requirement / specification documents

LTE / HSUPA /

Validation of Specifications

HSDPA / WCDMA /

GSM Writing down the Specifications

Helping team members understand the technical issues

LTE-A / VoLTE / CSFB

Designing and creating test plans / test cases to verify platform SW

LTE Network

functionality against system specification

Optimization / Link

Budget Working with SW developers closely to debug, troubleshoot and resolve

problems

3GPP

Documenting defects in TFS

QCAT

Re-testing previously failed test cases to verify fixes in a timely manner

QXDM Monitoring and tracking test progress to meet delivery schedule

Regression-test previously tested functionality to ensure no breakage

TEMS

Perform soak testing / load testing / performance testing to ensure bugs or

ATOLL

memory leaks do not appear

ACTIX Involved in Product Management to chart out product roadmap

Wireshark

Product training for Sales teams

Read and understand 3GPP/Qualcomm documents & provide RF

Solutions [Reassessment of existing logics + Doing the corrections] /

Research on new Logics/KPIs

Perform internal testing as well as live drive testing for wireless network

and protocol measurements for various techno logies, GSM, WCDMA,

HSPA and LTE using Qualcomm chipset based phones/data devices, such

as Samsung, Huawei, Sierra Wireless

RF Analysis [Handover / Call Flow / VoIP / Call Drop / Low Throughput /

Reestablishment-Cell Update Procedure / L1 Data / Layer 3 Messages]

Current Projects

Sigma-PA

Sigma-PA is a Windows application that processes and analyses measured data [LTE/WCDMA/GSM] by

Sigma-LA, Sigma-ML and other drive test tools. Intelligent analysis makes troubleshooting easy and

convenient. Sigma-PA also supports log data collected by Qualcomm's QXDM and other similar tools.

Automatic analysis function helps investigating intricate network hiccups. For example, by analyzing L2 and

L3 messages inter and intra frequency handover points can be detected and protocols and cell site information

can be displayed on the handover failure points.

Sigma-ML

Sigma-ML is an Android application running on smart phones to measure and troubleshoot mobile wireless

network. It automatically downloads data via FTP and HTTP and measures Throughput, RSSI and other

network parameters [LTE/WCDMA/GSM]. With options installed, Sigma-ML collects L1, L2, and L3 log data

from the phone, analyzes & displays it in real -time and saves it to the SD card simultaneously. Performs several

kinds of tests including FTP DL/UL, HTTP DL, Voice Call Origination/Termination, and SMS Test.

Sigma-LA

Sigma-LA is a Windows application that captures monitors and saves RF log data from UEs, scan receivers and

GPS devices. Up to 4 UE data, 2 scan receiver data and one GPS data can be captured simultaneously. Sigma -

LA can also playback saved data after the data collection session has ended. L3 message can be decoded in real

time and can be displayed with decoded tree structure. Cell site information can be displayed on a map as well.

i-Spot

iSpot is a generic product that measures the performance of the radio interface for 3G wireles s network. By

collecting the test data for optimization and benchmarking, and for measurements various requirements, such

as drive test indoor or outdoor fixed-point measurement.

Qualifications

M.S. in Engineering Management from Louisiana Tech University [2005 – 2007, USA]

B.E. in Mechanical Engineering from Pune [1997 – 2001, India]

Personal Details

Date of Birth : 27th November, 1979

Address : G-303, Maya Garden PH-3, VIP Road, Zirakpur, Punjab

Contact this candidate