SARBJIT S BHANGU

acw43u@r.postjobfree.com

Cell: 720-***-****

Professional Summary

* ***** ** ********** ** RF Design, Optimization, Troubleshooting, and performance monitoring for wireless communication.

Fully proficient with RF engineering principles (RF communications theory, design principles, network optimization, propagation modeling and prediction, etc.) and vendor capability assessment.

Comprehensive knowledge of GSM, UMTS and LTE networks.

Proficient with Ericsson GSM / UMTS / LTE OSS & Moshell Commands.

Good knowledge of BTS, MCPA, TMA, RRH and Antenna Structures, RF Cabling and fiber interfaces.

Good Understanding of Site configuration (RF Plumbing/Radios/Antenna/Hardware).

Extensive knowledge of layer 3 messaging in UMTS TEMS Investigation.

Experience in Drive Data Processing tools like Windcatcher 3.5.4.0, eDAT & TEMS Discovery & Actix Analyzer.

Well versed with Drive Test Tools like TEMS Investigation, JDSU and MapInfo.

Proficient in MS office applications: Excel (including macros, pivot tables and Visual Basic, Word, PowerPoint, Access as applied to actual project solutions, Outlook, Visio, Project)

Good knowledge of programming languages C, C++, Perl, Java, ActiveX, .NET and MATLAB.

Working experience with test equipment including RF sources, pulse generators, spectrum analyzers, vector network analyzers and power meters.

Excellent written and verbal communication skills.

Excellent team player, self-motivated, quick learner having good debugging, problem solving & analytical skills, and trouble-shooting capabilities.

Good knowledge of iBwave design tool.

Professional Experience

RF Design Engineer (Feb’2016-Present)

AT&T (MasTec) Denver

LTE/UMTS Design / Scoping / Site Planning.

Worked on Auto-Forms to prepare and update RFDS for CO, WY and MT market to support LTE/UMTS Carrier add, NSB and Antenna SWAPs /ADDs.

Creating RFDS, Plumbing Diagrams (VISIO diagram), defining Antenna installation and recommending equipment for existing and proposed sites as per requirement in Autoforms.

Verify the selection type of Antenna, Height, Tilt and Azimuth depending upon requirements of coverage and capacity from customer.

Use Atoll (design tool) output to create Site, transmitter and cell database.

Site survey, equipment analysis and design review of proposed RF sites.

Actively involved in RF scoping of LTE, UMTS and NSBs.

Discussed the cell sites physical configurations with field engineers.

Tools/Environment: Autoform, VISIO, Atoll, RMAP and Quantum.

RF Engineer (Sept’2015-Jan’2016)

Centerline Solutions

Create benchmark and carrier specific reports for GSM/UMTS/CDMA/LTE networks; recommend technical solutions on performance issues and upgradability.

Process drives data for benchmark and carrier specific network performance evaluation using Windcatcher.

Design In Building solutions using iBwave Tool for WCDMA/UMTS/LTE technologies.

Delivering quality indoor RF design by selecting optimum solution considering technology, antenna selection, building layout etc.

Performed RF design link budget analysis.

Create Pre-SMRs (System Modification Request) on carrier add for Verizon SW region markets.

Follow diagrams and Verizon’s proprietary tools (GeoPlan, C-iT) for data integrity.

Evaluate FCC compliance with Human Exposure to Radio Frequency Electro-magnetic fields (EME Analysis) for major carriers across USA.

Tools/Environment: Windcatcher 3.5.4.0; JDSU Model W1314B; MapInfo; GeoPlan; C-iT; Roofview; Google Earth Pro.

RF Performance Engineer (Aug’2014 to Aug’2015)

AT&T SFL Market

LTE/ UMTS / GSM Network RF Performance; End to end RF and system performance improvements on AT&T LTE/ 3G/2G network for SFL Market

Analyze daily network statistics to identify and solve network performance issues.

Monitor cell site performance using metrics and KPI’s, providing evaluation, recommendation and implementation of changes to improve network efficiency and performance.

Provides RF Optimization support for the network integration of a new element like New Site built, Sector Addition, UMTS carrier addition and LTE over the existing network; which includes both pre and post launch optimization.

Responsible for analyzing the worst CQI offenders; providing mid-term and long term solution.

Perform root-cause analysis of issues to meet target KPIs or performance improvement.

Recommend parameter changes to improve performance and prepare status reports.

Identify overshooting sectors, recommend/implement changes in order to optimize Overall KPIs.

Tools/Environment: Business Object; Ericsson OSS; Nokia GSM OSS; Central Ticketing System;

AT&T Internal Tools (Quantum; RMAP; Autoform; Realtime RSSI, etc.)

UTRAN Engineer

AT&T Georgia Market (Nov’2012 to July’2014)

Provide guidance to field Engineer while troubleshooting hardware failures on Ericsson RBS, and Line/Antenna system.

Modify parameters (EDT/CPICH, Power) as per Instructions by Performance Team in an effort to optimize network.

Calculate Line Losses (Attenuations) as per the RFDS & implement it accordingly in OSS.

Responsible for clearing RBS External Alarms/TMA Alarms/Hardware Issue & Interference issues (RSSI,VSWR)

Generating Daily Alarm analysis Report and Root cause report for Pre Launched sites.

Efficiently worked on RET migration from CCU to EnodeB project by creating/editing RET MOs in OSS.

Complete Pre & Post checks of site before opening and closing trouble ticket.

Monitoring, troubleshooting and improving voice and data network performance/KPIs (such Accessibility, Retainability, Throughput, Voice Quality, interference, capacity, utilization, etc.) for AT&T Wireless network.

Identify/troubleshoot top sources of network degradation (Accessibility/Retainability). Perform traffic load balancing between carriers/technologies.

Generate Shell scripts necessary for optimization

Tools/Environment: Ericsson OSS (LTE/UMTS/GSM); GSM Ericsson OMT; MS Office; Central Ticketing System

AT&T Internal Tools (Quantum; RMAP; Autoform; Realtime RSSI, etc.)

RF Engineer I

ALU LTE Pre-Launch Tuning (AT&T Colorado Market) (June’2012 to Nov’2012)

Working with Project Management Team to address any project issues and avoid delays

Responsible for full site shakedowns, verifying RSRP, SINR, PCI and azimuths.

Technical support on low throughput sites (UDP & TCP UL/DL), troubleshooting with ALU Tiger Team in investigating the packet loss.

Identify the network issues by analyzing the drive test data using eDAT Analyzer and perform the necessary changes.

Analyze IRAT and make necessary changes on neighbor relations and thresholds.

Perform neighbor changes and tilt changes based on the drive test and terrain data.

Analyzing drive test data using maps, charts, and workbooks within post-processing tools eDAT,

Create cluster boundaries, site maps and drive test routes for each cluster using MapInfo

Validate the site verification based on drive test data.

Prepare Drive Data reports & presentation, and build strategic approaches to problem solving.

Prepared shake down reports for 370 eNodeB in Denver market, and directly work with AT&T PE on a cluster level.

Maintained market trackers for site shakedowns and troubleshooting sites and generated reports for ALU Market lead/Manager.

Associate RF Engineer

Avion Systems (For AT&T) Georgia and North Carolina Market (July’2011-June’2012)

Performed Go/No-Go tests to launch AT&T’s UMTS networks with acceptable performance in cell site and cluster level environment.

Tested for congestion, drops, blocks, RACH errors, and monitored active set, missing neighbors, scrambling codes, signal strength (CPICH-Ec/Io & CPICH RSCP) and general quality for UMTS.

Proficient with Drive Testing & configuration of Data collection tools like TEMS Investigation 11.0.1 & Agilent E6474A-X 14.2.

Tested KPIs such as CS & PS, IRAT, SHO, RRC setup, RAB drop, RAB success, CS drop, PS drop, RSSI.

Involved in post processing and quality analysis of Drive data and Scanner data using ACTIX.

Analyzed the drive test data to do fine-tuning of antenna tilt, azimuth, frequency planning, Pilot pollution, Interference Analysis, optimize neighbor list for network enhancement.

Performed various test scenarios like IRAT testing, IFHO testing, Stationary and Site Verification.

Created Drive routes using MapInfo, Street Atlas and Microsoft Street and Trips for cluster and market drives during Network Deployment and Optimization.

RF Field Engineer:

Quadgen Wireless (For AT&T) Michigan, St Louis and Iowa Market (Feb’2011-June’2011)

Study RF design coverage maps and identify problem areas in terms of coverage, interference, or pilot pollution.

Work with RF design engineer to understand the cluster definition, customer expectation, and network configuration.

Analyze the data & do drop analysis, & send recommendations to the customer with the help of RF Lead.

Plan and execute tasks to optimize clusters for the customer network during the deployment phase.

Cluster optimization: Add or delete neighbors required using Map Info, Identify the coverage holes, pilot pollution & terrain issues.

Amend or draw the drive routes & send it to the drive teams.

Participate in providing input to the RF sections in the deployment plan, and site logistical needs.

Troubleshoot areas with poor RF performance. Request drive tests, analyze data, and recommend network changes as applicable

Prepare teams for the drives; ensure good co-ordination to finish task on time.

Education

Masters in Computer Science, Punjab Technical University, India.

B.S in Computer Science, GNDU Amritsar, India.

Work Status US Citizen

References Can be provided on request.

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