Harpreet Singh Resume

HARPREET SINGH
Senior RF Engineer
Cell Tel. #: 248-885-5496
Home Tel. #: 209-831-7934
Email: harpreetgrewal82@gmail.com
Professional Summary:
 Sr. RF Engineer with 7+ years of experience in RF Optimization, Design and Performance for wireless
systems.
 Extensive experience in RF Network Optimization activities for a LTE/UMTS and GSM network using
enterprise post-processing & KPI reporting application for cluster/market acceptance.
 Excellent knowledge in Air Interface Protocols, Software & protocol traces for EnodeB, RNC/NodeB to
troubleshoot problem like Call failures/drops, low performance sites, network quality degradation.
 Well experienced with Interference Analysis, Traffic and Capacity Analysis, Antenna tilts and Azimuth
configuration, Handovers, Call Processing flows and Parameter Analysis
 Proficient in RF Optimization and Design Tools like Ericsson OSS, Business object, Moshell Actix
Analyzer, Atoll, TEMS, Agilent, MapInfo and MCOM.
 Have RF Optimization skills including Alarm monitoring, Parameter settings, Data fill, Drive analysis,
Antenna sweeps and Antenna Tilts.
 In depth knowledge to perform co-channel and adjacent channel interference testing and analysis to undertake
network performance improvement (KPIs) and optimization tasks.
 Troubleshoot and optimize the high capacity sites in dense traffic areas, Traffic analysis and provide solution
for capacity growth.
 Good experience in writing macro using visual basic.
 Extensive knowledge of layer 3 messaging in UMTS TEMS Investigation.
 Working knowledge of IP Networking.
 Experience in different drive testing techniques used by AT&T for checking RF Performance, call processing,
troubleshooting and post processing of RF data.
 Played role of Team lead in various design and optimization projects.
 Excellent written and verbal communication skills.
 Good Knowledge of various Object Oriented programming languages like C++, Visual Basic Script etc.
 Solid time management and multitasking skills, which help in conducting project meetings, reviews,
walkthroughs.
 Versatile team player with excellent analytical, presentation and interpersonal skills with an aptitude to learn
new technologies..
Technical Competencies:
Languages : C#, ASP.NET, VB.NET, C, C++, Java, Java Script, HTML, XHTML etc.
Tools : Ericsson OSS, TEMS, Agilent, MapInfo, SQL Analyzer, VISIO, Actix, SQL Profiler, MS
Office
Database : MS Access, Microsoft SQL Server 2005 Oracle and MySQL.
Operating Systems : UNIX, Windows NT / 2000 / XP Pro / Server 2003.
Protocols : TCP/IP, WAP, VoIP, FTP, ATM, UDP Etc.
Hardware Tools : Matlab6.5, Cadence Virtuoso-IC-layout, PSpice, Minitab, NC-Launch, & Tanner11.1
Network Technologies: GSM, UMTS, WiMAX, GPRS, EDGE, CDMA, TDMA, WCDMA, LAN, WAN, MAN, and
LTE.
Equipment : Ericsson RF equipment (RRU, Main UNIT for UMTS /LTE GSM),Nortel GSM equipment

Professional Experience:
Employer: Amdocs, Inc.
Project Assignment: San Ramon, CA (Contractor AT&T) Jan’ 14 – Till Date
Role: Senior RF Engineer
Job Duties: RF Design Engineer: LTE/UMTS Design for AT&T (Northern California)
Project Scope: Working for AT&T in the Northern California Markets as RF Design Engineer with responsibilities
for new Sites addition to the network ( LTE & UMTS).
Role & Responsibilities:
 Performing design and optimization of given market by following AT&T guidelines to attain design goals for
 single and dual carrier network.
 Getting Technical approval from HQ to obtain funding for NSB’s (new site built)
 Analyzing data sheets of given cluster and perform discrepancy checks for database verification.
 Creating Baseline and optimized model for given cluster using Atoll including design of Computation zone and
Focus zone.
 Review propagation models and validate based on RF Modeling accuracy standards.
 Optimizing current network for coverage & capacity using ACP tool Arieso for UMTS & LTE.
 Performing Neighbor planning and PCI planning using Atoll and M-Patt.
 Improving design KPIs like RSRP, RSRQ, SINR, RSCP, Ec/No using ACP tool and Atoll.
 Review propagation models and validate based on RF Modeling accuracy standards.
 Analyzing traffic spread, clutter class, clutter weight, clutter height, DTM, Antenna model and its gain.
 Performing and analyzing Monte Carlo Simulations for given cluster.
 Pilot pollution removal and tilt optimization.
 Running predications in atoll for CGSA compliance issues
 Analyzing traffic spread, clutter class, clutter weight, clutter height, DTM, Antenna model and its gain.
 Running and analyzing predictions for Coverage by Transmitter, Coverage Reception Analysis (Ec/Io),
Coverage by signal level, Handoff Status, Service Area (Eb/Nt) for downlink and uplink.
 Verification of RF related site engineering drawings.
 Communicating proposed site activities with team members including Site Architect, Equipment Engineer, Site
Acquisition Manger and Planner.
 Review, Amend and Validate RF Site Designs.
 Running propagation maps and Coverage Analysis with various RF tools including Atoll, Actix, Mapinfo, OSS.
 Making presentations for proposed RF sites.
 Run predictions and prepare coverage plots to get GSM coverage with and without existing sites using Atoll.
 Monitoring Alarms, RSSI issue on newly integrated sites.
 Review parameter & tilt changes recommended by vendors to improve performance of sites.
 Coordinating with vendors and zone engineers to resolve RF related issues on the sites.
Employer: Celcite Management Solutions
Project Assignment: San Ramon, CA (Contractor AT&T ) Sept’ 13 – Dec’ 13
Role: Senior RF Engineer
Job Duties : RF Optimization Engineer: LTE/UMTS Optimization for AT&T (Northern California)
Project Scope: Working for AT&T in the Northern California Markets as RF Optimization Engineer with
responsibilities for optimizing of new Carrier Addition to existing sites for LTE & UMTS.
 Establishing and analyzing the requirements of 3G/ LTE solution.
 Planning and executing tasks to optimize LTE RF Clusters in the customer’s network.

 Post Launch support for Accessibility, Retainability, X2 HO Issues, PCI/X2 confusions, UE context failures,
ERAB abnormal releases, ERAB drops.
 Event A2 parameters optimization to reduce the number of Bad Coverage Measurement Reports.
 Troubleshoot UL RSSI, VSWR, alarms, RET connectivity and swapped feeder
 Directly interfacing with the customers to report KPI results and status of the optimization activities measuring
the parameters RSSI, RSRP, RSRQ.
 Ensured LTE RNDCIQ is accurate and updated for scripting.
 Improved KPIs such as CS/PS Accessibility, CS Retainability, SHO/ IRAT/IFHO (Success) Rate, and Load
Sharing, directed retry rate, 3G on 2G etc.
 Analyzed reports to troubleshoot AAL2 congestion, UL RSSI ( Internal & External), T1 Errors, non-HS power
usage among layers, traffic distribution, PRACH propagation delay, compressed mode , Antenna Tilts down
and up-tilts for overshooting sites which creates high pilot pollution, Performed Neighbor Scrubs were regularly
for optimized Inter/Intra IF & IRAT relations.
 Managed operational issues and produced daily alarm summary and issues tracker
 Troubleshoot the areas with poor RF performance. Request Drive tests, analyze data and recommend
network changes as applicable.
 Studying the RF design coverage maps and Drive Test data to find the areas of coverage, interface and pilot
pollution.
 Troubleshooting the problem areas and providing recommendation for the systems performance
enhancements.
 Support KPI before and after site launches, troubleshoot and escalate as needed for the resolution.
 Perform complex data trace analysis to improve LTE performance.
Employer: GCorp International, Inc.
Project Assignment: Pleasanton, CA (Contractor AT&T) Oct’ 12 – Sept’ 13
Role: RF Engineer
Job Duties: LTE/UMTS Optimization
Project Scope: Plan Design & Optimization of UMTS & LTE Network.
 Perform SSVs on the pre-launch LTE sites, by verifying PCI’s, RSRP, RSRQ, and CINR then going with four
different throughput tests on each sector (UDP DL/UL & TCP DL/UL), followed by Intra-handover between the
sectors and the IRAT test.
 Performed Pre & Post Launch Optimization and made parameter value changes like usedFreqThresh2dEcno,
usedFreqThresh2dRscp, qRxlevMin, qRxQual & hoType, critical for performance and optimization and
identifying sector to be as border or core based on the site types.
 Performed parameter changes at RBS & RNC level on regular basis for the improvement of KPIs as well as
maintaining them as per recommended guidelines.
 Consistency checks were performed using RNC exports & KGET files to ensure parameter compliance at Cell
& RNC level.
 Troubleshooting of alarm’s , HW issues and other performance impacting issues
 Identifying swapped feeders and MIMO Swaps and making necessary corrections.
 Identifying poor coverage/too many server areas and provide necessary tilts to improve the coverage.
 Identifying Azimuth/Design discrepancies, Diversity Imbalance Alarms.
 Recommending Tilt Recommendations to improve RSRP/SNR through RET.
 Working with System Performance to reduce Lost Calls, Ineffective Attempts, Failed connection attempts,
Dropped Connections, RRC setup failures, RRC Drops, Context Setup Failures, and Context Drops in assigned
area
 Review of network statistics (Daily Performance Reports) to target areas for improvement by analyzing lost
calls, handoff failures, frequency issues, origination failures.
 Load balancing the traffic in Idle mode and connected mode by adjusting qOffset, cellreselection priority, Intra
and inter frequency HO parameters.
Project Assignment: Pleasanton, CA (Contractor Ericsson) Mar’ 11 – Oct’ 12
Role: Lead RF Engineer

Job Duties: Design - Optimization & Tuning
Project Scope: Working as RF Engineer with responsibilities of Optimization and Tuning of UMTS network for
NCAL market (Ericsson Project).
 LTE Pre and Post Launch optimization for AT&T North California market.
 Troubleshoot top offender sites and provide possible cause and resolution.
 Identifying & Fixing UL sync drops.
 Identifying interference issues and troubleshooting the cause of interference and notifying to the concerned
departments.
 Perform neighbor/parameter audits, KPI troubleshooting, site verification, tilt recommendation and Monitored
resource utilization & recommend expansion for ever increasing traffic in the network.
 Recommendations are produced with sound justification for the design review of sites where optimization
techniques were exhausted.
 Post Integration check for newly integrated sites i.e. CCU & IP connectivity, TMA setting etc.
 Implement AT&T gold standard parameters, CPICH alignment.
 Co-ordinate with Integration and construction teams to resolve RSSI & VSWR issues.
 Implementing correct link budget for full build and co-sites.
 Implement Pre drive Mop’s to biased sites.
 Co-ordinate with Post Launch team on layer management and seek customer approval prior to implementing.
 Schedule WNCS recording and do parameter audit before launch of site.
 Review drive test report before submitting to customer and getting approval on drives reports.
 Reports, Escalation of service effecting alarms, open and close alarm cases
 Run predictions and prepare coverage plots to get GSM coverage with and without existing sites using Atoll
software.
Project Assignment: Plano, TX (Contractor Ericsson) Aug’ 10- Mar’ 11
Role: RF Engineer
Job Duties: Optimization & Tuning
 Project Scope: Worked as RF Engineer with responsibilities of Optimization of wireless networks for AT&T
Atlanta (GA) for establishment of UMTS 3G networks.
 Analyzed the collected data to find various trouble areas in the network, overshooting cells, coverage holes,
areas of poor pilot dominance and scrambling code plan collisions.
 Prepared baseline and optimization presentation including recommendation for tilt audit, missing neighbor,
sector swap and propagation plots for tilt change from Atoll (Showing RSCP coverage before and after) etc.
 Prepared Site parameter audits and MapInfo plots for neighbor list (SHO, Inter-carrier, IRAT)
 Performed Handover analysis, Ec/Io Analysis, HSDPA analysis for Download and EUL analysis for
upload,
Access failure analysis and Drop call analysis.
 Planning Site configuration analysis, Neighbor Analysis, Pilot pollution analysis, parameter configuration
and IRAT neighbor analysis.
 Co-channel (C/I) and Adjacent channel (C/A) interference analysis.
 Prepares routes for site and carrier integrations, and system drives.
 Analyzed drive test data using Actix to check Drop, Blocked Calls, Handovers and Pilot Pollution.
 Analyzed coverage & drop call locations to identify issues for comprehensive understanding of progress of
RF optimization.
Employer: MobileComm Professionals Inc.
Project Assignment: San Diego Market (Contractor Ericsson) Mar’ 10- Aug’ 10
Role: RF Engineer
Job Duties: LTE Trail for Cricket

Project Scope: Worked as RF Engineer with responsibilities of executing different test cases as per customer
requirements.
 Link Budget Analysis and calculation for path loss.
 Perform latency testing for measuring basic network response time.
 Mobility throughput testing under different RF conditions as well as different power and Load setting on
e-NodeB.
 Performance comparison on SIMO, MIMO & TX diversity.
 Analysis of layer 3 messages for trouble-shooting.
 Monitor system performance on 50% up-link load.
 Execute Iperf commands and call tracing.
 Post Process TEMS and Iperf data to check the performance and plot graphs.
Project Assignment: Los Angeles Market (Contractor Ericsson) Apr’ 09- Mar’ 10
Role: RF/Test Engineer
Job Duties: IuB over IP FOA
Project Scope: Assisted Ericsson team in RAN Backhaul migration to IP on AT&T network as field test Engineer.
 Check field performance of network using TEMS investigation.
 Perform Throughput Testing UL/DL, Latency testing pre and post migration.
 Perform various parameter testing Pre and Post migration.
 Compare the result Pre and Post to check if migration is successful.
 Perform different Test as Soft/ softer handover, IuR, IFHO, and IRAT etc.
Project Assignment: Los Angeles Market (Contractor Ericsson) Oct’ 08- Mar’ 09
Role: RF Engineer
Job Duties: Network Optimization At&t 3G Network Los Angeles (Second carrier 1900)
Project Scope: Analyzed and optimized the network for AT&T 3G (UMTS) network in Los Angeles, pre launch and
post launch (1900 Band 2nd Carrier).
Role & Responsibilities
 Radio network tuning & optimization of the network.
 Performs system drive tests, for new site integrations, carrier additions, and other optimization routes as
required.
 Maintain the KPI under given threshold.
 To identify the coverage holes or/and problem areas.
 Perform RF drive testing to carry out propagation and signal measurement.
 Working on TEMS Investigation collect UE physical measurements (SC, RSCP and Ec /No) for the active
cells.
 Generate reports for network performance requirements.
 Post processing of drive logs & extraction of network information.
 Prepare and update maps for coverage analysis.
 Verify radio quality (BLER) requirement on several different radio services, verify handover functionality,
verify the network, site functioning properly, antenna positions, antenna directions or tilt and swapped
feeder.
 Post process drive tests, prepares and maintains site drive test folders.

Project Assignment: Irvine, CA Jan’ 07- Aug’ 07
Role: RF Engineer (Intern Position)
Job Duties: Network Optimization At&t 3G Network Los Angeles (First carrier 850)
Project Scope: Analyzed and optimized the network for AT&T 3G (UMTS) network in Los Angeles, pre launch and
post launch (850 Band 1st Carrier).
Role & Responsibilities
 Radio network tuning & optimization of the network.
 Performs system drive tests, for new site integrations, carrier additions, and other optimization routes as
required.
 Neighbor definition for newly integrated sites.
 Perform RF drive testing to carry out propagation and signal measurement.
 Working on TEMS Investigation collect UE physical measurements (SC, RSCP and Ec /No) for the active
cells.
 Post process drive tests, prepares and maintains site drive test folders.
Educational Qualifications:
 Master of Science in Computer Engineering
Wayne State University, Detroit, Michigan
2006-2008
Related Course Work:
Optical Communication Networks, Parallel and Distributed System, Network Programming, Matrix Computation,
Caching and Presetting Techniques and Machine Learning (Artificial intelligence).
 BS in Computer Engineering
Punjab Technical University, Punjab, India
2001-2004
Relational Database Management System (RDBMS)-I, II, DAA (Design and analysis of algorithm),
Programming in C++, System Analysis and Design, Computer Architecture, Operating System, Computer
Graphics, Internet Protocol.
 Diploma in Computer Science
Guru Nanak Dev Polytechnic, Ludhiana, India
1998-2001
Digital Electronics, Computer Networks, Fault Diagnosis, Computer Peripherals and Interfaces,
Industrial Management, Data Structure, System Analysis and Design, Microprocessors, Basic Electronics and
Electrical Engineering, Applied Mathematics and Operating Systems etc.

Harpreet Singh Resume

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