Milan Shrestha

**** ****** *****, *******, ***** 76021

aczh0h@r.postjobfree.com 817-***-****

Professional Summary

Solid understanding and experience on GSM, CDMA, UMTS & LTE technologies, along with the main software tools and equipment used in Telecom, such as QXDM, ACTIX, MapInfo, TEMS Discovery, Nemo, JDSU, Mentum Planet, ATOLL, Autoforms.

Hands on experience in conducting RF projects from planning, designing, tuning/optimization, to integration, RF Data Sheet, understanding of design of GSM, UMTS, LTE technologies, knowledge of analyzing Data Sheet designs and implementing the changes to improve the network performance when needed.

Expert in analyzing drive test log files, creating and analyzing RFDS/Plumbing diagram, thematic Map and KPI reports using Mapinfo professional and Actix.

Exposure to VoIP (VoLTE) issues analysis using Wireshark Specialties Radio Network Performance/Optimization.

Good understanding of outdoor DAS Systems, TMAs, Duplexers, Diplexers, Couplers, Feeders & Cables.

Good understanding of antenna, antenna polarization, noise density, spectrum analysis, signal interference and analysis

Proficient in using RF lab equipment as spectrum analyzer, VNA, power meter, different types of radios, frequency generator etc...

Working experience in Reverb chamber

Good understanding of Comcast Wi-Fi site survey and planning tool.

Ability to generate, capture and analyze protocol traces.

Good networking protocol knowledge: TCP/UDP, HTTP & IPv4/6, SNMP

Exposure to Cisco Router (CCNA certified)

Strong experience on developing and executing test plans according to requirement of project.

Excellent customer interface skills working with Wireless Services providers and end Enterprise customers.

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

EXPERIENCE

Qualcomm Inc.: April 2016-Present RF ENGINEER

Responsible for LL1, ML1, RRC, Lower layer analysis of LTE and VoLTE using QXDM, QCAT, APEX

Responsible for executing field-test data on latest devices and software, collecting KPI data and troubleshooting

Analyze and conduct study and test on RF trace call, RTT and BPLMN

Working with multidiscipline team (software development, system design, and Customer support, ASIC Design etc.) to test and commercialize mobile device products.

Conducting sanity test, identifying and reporting results/issues

Perform sanity drive and route scouting, collect the data logs, analyze and evaluate network quality

Perform Carrier Aggregation test and analyze the logs

Perform Throughput test in different RF scenario e.g. near cell, Edge cell, Far Edge cell etc...

MobileNet Services, Inc.: September 2014-Feb 2016

RF ENGINEER

Alcatel-Lucent market for Sprint and AT&T LTE/UMTS/VoLTE support:

Perform radio propagation modeling (using drive test logs) and prediction to determine cell site location, determining equipment and power configurations, forecasting channel capacity requirements, planning and optimizing system traffic and developing design standards to ensure system quality (Atoll tool-AT&T and Mentum Planet- Sprint)

Creating Radio Frequency Data Sheet (RFDS) using Autoforms tool for NSBs (New Site Builds), existing sites, carrier addition, cell site of the Future, rework and the updates with different Technologies as GSM, CDMA, UMTS, and LTE for AT&T markets and some telecom operators.

Generate and evaluate coverage areas and interference prediction maps, analysis on effects of path loss on the received signal strength in various signal propagation environments

Design plumbing diagrams using Microsoft Visio for various hardware configurations showing all equipment used at the cell site: Antennas, TMA, AISG, MCPA, RET unit, RXAIT, Diplexers, and RBS (ALU) based on customer needs. .

Working on PICD and ICD phase of the RFDS design for creating, updating, promoting sites via Autoforms (AT&T Tool), collectively taking inputs from Audit sheet using Siterra and other tools and updating existing site configurations, setting up the conference calls with AT&T and telecom vendors for all the issues that comes in the sites.

Analyze propagation modeling and “drive test” measurements and make recommendations for site optimizations.

Coordinate with clients to deploy the resources for the drive testing to meet the requirements.

Perform Drive Testing for AT&T 4G LTE including Single Site Verification (SSVs) using NEMO and JDSU Software (GNG, Anova 2.0/3.0).

Perform In-Building test for AT&T 4G LTE and UMTS using JDSU.

Perform various handover analyses such as PCI verification, Azimuth Verification, Sector Swap Analysis, TCP throughput analysis (UL/DL) using Speed test, NEMO and JDSU Software.

Experienced with RF tools such as PCTel MX RF Scanner, W1314A-E12 NGR RF, Sierra UE, HTC UE, MS Street and Trips, Street Atlas.

Trained entry-level testers in JDSU software.

Performed Cluster Drive, Stationary, Mobility, Intra, Inter and IRAT tests.

Completed the AT&T- Alcatel Lucent Project in South Dakota, North Dakota, Wisconsin, Iowa, Nebraska and Minnesota.

Performed E911 Call Tests so as to ensure correct call back number, location and phase of call.

Involved in FFA (Form Factor Accurate) testing for LTE Advanced Technology in Minneapolis, MN and Grand Forks, ND using JDSU and QXDM software.

Carrier aggregation test in Grand Forks, ND and Duluth, MN area

Involved in VoLTE test in Minneapolis market using QXDM.

Performed MME (Mobility Management Entity) Call Testing in Minneapolis.

Lubbock, Texas MYCOMM project for AT&T LTE/UMTS support:

Used MAPINFO tool to create drive routes around ATT cellular site for performing drive testing

Analyzed logs in ACTIX tool for identifying issues in coverage area

Mississippi/Oklahoma/Missouri Sprint Channel Retune:

Supported in performing of frequencies retuning, RF parameters tuning to achieve acceptance of the cascade.

Performed verification of the PN offset of the cascade after retuning, report to the senior Engineers

Prepared data and drop call study and report it.

Houston COMCAST WIFI Project:

Performed survey and implementation of WIFI hotspot in different city of Houston.

Performed site survey, plan using software tool (AP Tracker), installation of the hotspot and equipments on site and commissioning of Wireless system successfully.

Performed monitoring, analyzing and clearing all faults reported by these systems.

Guided and supported corrective maintenance for Field Technician.

Established and maintained excellent customer relationships by providing regular follow-up and support

San Marcos ATC (American Tower) project for Verizon:

Performed outdoor DAS-System verification test

Performed Baseline measurement of system noise floor in different frequency band/CW testing/Optimized RU noise floor

Performed downlink/uplink functionality test to verify all the active and passive DAS equipment is installed correctly and is functioning to meet the design link budget

Performed DAS commissioning and RF validation test

Performed GSM/UMTS/LTE MIMO-SISO indoor coverage planning to meet capacity and coverage needs

Performed benchmark walk tests utilizing TEMS for UMTS & LTE

Worked closely with the construction & engineering team on DAS installation and system troubleshoot

Performed pre-optimization shake down testing to ensure signal levels

DAS Verification and optimization to optimize UL RSSI and balance DL/UL power by tuning DAS system gains and attenuation, antenna tilts, 850/1900 DL power balancing

Data post processing and plots production utilizing TEMS Discovery

Qualcomm Inc.: September 2013 to September 2014 RF Engineer

Dallas Market Modem stability test support:

Tested carrier aggregation for AT&T in LTE network.

Drive data collection for clusters, search ring areas, post processing

Log analysis of CDMA, GSM, LTE, VOLTE, SVLTE and SRLTE for troubleshooting and network performance

Monitored traffic analysis, dropped calls, blocked calls, handovers, and channel congestions.

Analysis of Physical/MAC layers and Call Processing concepts in one or more of the following air interface standards CDMA2000, 1xEV-DO (Rev 0/A/B), GSM/ GPRS /EDGE / Rel99/ Rel5 / HSDPA/ HSUPA/HSPA+, LTE

Analysis of SIP and IMS

Performed a variety of duties for analyzing the scripts of the android and android kitkat by using different software provided by Qualcomm

Provided support to the different teams of scripting by analyzing wireless handsets and newly developed scripts for various air interface standards

Analysis of RF propagation, Voice and Data test for AT&T, Verizon, Sprint and T-Mobile.

Used tools: QXDM, Apex

Flextronics RF Test Engineer

Longview, Texas (May 2013 - September 2014)

Performed a variety of duties in support of production test operations in Reverb chamber.

Set up test apparatus and conducted simple tests of production electronic assemblies and units following established methods, procedures, standards, and sequences.

Performed System level RF test on Microwave Packet Radios (MPR 9500 IDU and ODU) and Microwave Digital radio (MDR 8000). Tuning different frequency band of Power Amplifiers (PA)

Worked closely for creating data services.

Involved in deleting, updating and editing data structures as market requirements.

Responsible for testing and troubleshooting radios at systems levels at frequencies of 6 GHz and 11 GHz. Test methodologies includes provisioning of radios, enabling core cards, Ethernet slots and DS1 or DS3 test slots, measuring various power levels and threshold values, perform ATPC, BER test, Ethernet test.

Initially worked on tuning the two or three stage Power Amplifiers of the radios. Process includes checking the Bias Voltage to the transistor, Output power of Power Amplifier, Placing tuning chips on trace to maintain gain flatness in Bandwidth, and check for Inter-modulation Distortion.

South Dakota School of Mines and Technology Graduate Teaching Assistantship

South Dakota (August 2011-December 2012)

Managed and graded homework and lab assignment in “Computer Networks” using OPNET GURU tool

Graded homework and lab assignment in “Electric and Magnetic Fields”

Deep study in “Cognitive Radio Network”, “Spectrum analysis”

Kathmandu City College (KCC) CCNA Instructor

Kathmandu, Nepal (2010)

Responsible for Network Management and Planning, designing internal and external networks using extensive knowledge of LAN/WAN, configuring, handling troubleshooting of various CISCO routing and switching topologies. Familiar with 1700 and 3500 series CISCO routers/switches.

Instructed configuration of cisco routers/switches with different routing protocols, theory behind the networking sector in CCNA Lab.

Experienced with 802.11 a/b/g/n.

Experience with LAN switching, Routing protocols, TCP/IP.

Nepal Telecom Internship RF Engineer

Kathmandu, Nepal (2008-2009)

• Designed "GIS based GSM Coverage Prediction Model" to predict the GSM signal strength at a particular location. Determined the rate of attenuation of GSM signal at the edge of the coverage area.

• Analyzed drive test data to find out the root cause of the malfunctions using ACTIX tool.

• Improve KPI to optimize cluster area using changes in antenna tilt, azimuth, and software parameters.

• Optimized drop call, block call and call setup failure.

• Troubleshooting of network congestion, handoff and call drop related issues and network optimization using post processing tools.

• RF testing, mobile handoff testing, analysis of mobile signal strength, ESN testing, GSM architecture, evaluating mobile radio propagation

TECHNICAL SKILLS

RF Tools: Actix, Qualcomm Extensible Diagnostic Monitor (QXDM), QCAT, MapInfo, Delorme Street Atlas, Google Earth. JDSU, NIMO, Praxsym/PCTEL, Spectrum Analyzer, TEMS, ATOLL, Wireshark, Planet 5.6/5.8, Autoforms, MS Visio, Apex

Languages: C, C++, MATLAB, Basic knowledge of Perl, Python

Software: MS Office (Access, Word, Excel, Outlook), Adobe Applications

Certification:

CCNA

EDUCATION

Master of Science in Electrical Engineering, South Dakota School of Mines and Technology; December 2012

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