Senior Rf Design
Resume:
Ousainou Demba
US Citizen
ad9jqm@r.postjobfree.com
https://www.linkedin.com/in/ousainou-demba
Page 1
PROFESSIONAL SUMMARY
Seeking a position of Radio Frequency Engineer, in the field of Mobile Communication in which I will utilize my computing and telecommunication skills in (RF Design,Optimization & Intergration).
PROFESSIONAL EXPERIENCE
ERICSSON, PLANO TX 2020- Present
Senior RF/Integration Engineer for Ericsson DNOC ATS Team
Troubleshooting 5G NR site ENDC drops
Troubleshooting 5G NR ENDC Access Failures
Conduct PIM,VSWR & RSSI troubleshooting with Field Engineer
Verify and correct site configuration issues
Check hardware status for license and parameter settings
Check node bouncing and recommend for any equipment replacement
Troubleshoot TMO Nokia sites for RTWP & VSWR
Troubleshoot performance issue such as drops, accessibility, handover and Throughput
Senior RF Consultant: LTE/VoLTE Network Optimization and Performance Improvement for Sprint, February 26th to March 20th 2020
Review daily performance stats from PRTS for degrading KPIs
Run performance report on the worst sites/cells using Patrol
Run ENM commands to verify alarms, parameter audit, and feature licenses
Review daily Trams tickets to address worst performance sites/cells
Troubleshoot cause of MIMO degradation and provide improvement recommendations
Perform root cause analysis to improve VoLTE Accessibility, Retainability and Mobility for QCI 1; Optimizing VOLTE sites to reduce drops, improving the SRVCC Handover
Troubleshoot cause of LTE Accessibility, Retainability and Mobility degradation and provide recommendations to improve performance
Network performance monitoring and improvement of existing and newly integrated sites, ensuring seamless handover between Ericsson 1900MHz and 800MHz sites and Nokia 2.5GHz sites
Defined LTE parameter settings including multi band load balancing, traffic management, automatic neighbor relation design, LTE power optimization, and carrier aggregation optimization.
Create ACD, CIQ & RFDS using Sprint Vision
CONSULTING ASSIGNMENTS Data Analytics Engineer (RF Deployment)
T-Mobile, Frisco Texas October 1st, 2018 – December 14th, 2018
Create Micro Soft Power BI for the RF Construction team
Provide assistance to Construction Budget team to track PO
Provide Final Reports to the Construction Director
CONSULTING ASSIGNMENTS RF Design & Optimization (RF Deployment)
T-Mobile, Frisco Texas March 3rd, 2017 – September 31st, 2018
Create and Review RFDS with reference to the plumbing diagram
Create and review RFDS for 5G
Verify existing RF radio using BTS Site Manager
Review lease application with reference to the RFDS/Configuration
Review CDs
Create Port Matrix with reference to the RFDS (Design Configuration)
Create RF Configuration in regards to POR and Tower loading of sites
Customize RFDS for non-standard design/Configuration
Coordinate with Site Development for lease validation and design verification
T-Mobile, Austin Texas October 3rd, 2016 – March 2017
Create and Review RFDS with reference to the plumbing diagram
Verify existing RF radio using BTS Site Manager
Validate new site integration using NetAct and BTS Site Manager
Create sites in ASSET and SORT
Validate ASSET site configuration with CIQ information
GMLC and SAS provisioning and site validation
Review CDs and NTPs
Verify Radio module assignment on Nokia RAS/FASA & FASB antennas
Review Portmatrix with reference to the RFDS (Design Configuration)
Create RF Configuration in regards to POR and Tower loading of sites
Review CIQ for final deployment
CONSULTING ASSIGNMENTS RF Design & Optimization ( RF Deployment)
T-Mobile, Beltsville Maryland January 11th, 2016 – September 2016
Cell Site Design visit for L1900 Overlay (Capacity Sites)
Create Design Visit Site package to use for CD review
Identify Potential DAS sites
Design Outdoor & Indoor DAS for Coverage & Capacity Need
Design review for LTE & UMTS using ASSET & ActiveOne
Complete EME study for GSM, UMTS, and LTE sites
Use ASSET to create coverage prediction for Work Orders
Update the site database using SPOT tool
Create Neighbors with New Neighbor Generation Tool for PSC & PCI request
Create and Review RFDS
Build RFDS to the online RFDS Tool
Create CIQ for the LTE modernization project
Verify all the Golden parameters for the new site deployment
Conduct Pre-Lunch drive test for the new site deployment
Optimize the existing sites with the deployment of the new site
ERICSSON, PLANO TX 2010 - 2015
Sprint LTE 2ND Carrier Deployment : July 2015 – November 2015
RF Troubleshooting & Optimization team lead
Optimization and Troubleshooting for Sprint ( Missouri, East Texas, Kansas, Kentucky Markets)
Ensuring LTE/VoLTE site performance degradation after site visit are fixed
Complete a pre/post parameter checks and also GS audit to ensure all parameters are aligned
Ensure carrier aggregation feature is enable and activated and traffic load is fairly balanced between the various carriers
Troubleshoot cause of MIMO degradation and provide improvement recommendations
Perform root cause analysis to improve VoLTE Accessibility, Retainability and Mobility for QCI 1; Optimizing VoLTE sites to reduce drops, improving SRVCC Handover
Troubleshoot cause of LTE Accessibility, Retainability and Mobility degradation and provide recommendations to improve performance
Review and audit parameters for the 2nd carrier sites
Run ENIQ & RF Synch tools to generate performance report for the KPIs
Provision/Commission 4G LTE RAN equipment with GPL parameters
Troubleshoot sites that does not meet the pre-deployment KPIs
Run OSS commands to verify key parameter settings, alarms, etc
Generate No Harm report and submit to customer
Sprint Multi-Band optimization : November 2014 – July 2015
Post launch Activity for Sprint ( Missouri, Markets)
Managed optimization team (12 Engineers and 3 drive teams) and served as interface between Ericsson (RNAM) and the Sprint local RF team
Manage/ Coach 12 engineers (4 contractors, 5 GSC, and 3 OEM) with 6 drive testers
Evaluated every engineer and assigned them with task of their strength ( LTE, CDMA, EVDO, NSN, Reporting, Windcatcher analysis, ENIQ, Cockpit etc)
Schedule the drive testers for the clusters drive (30 clusters)
Trained the GSC engineers to get them up to speed for LTE optimization (Most of them have only CDMA background)
Bridge the team with local Sprint RF team including the RF manager
Communicated every proposed network changes to the Sprint local RF team for both approval and non -approval request/task
Work/support with the Solution Architect to implement all the parameter trails and generate performance report
Schedule weekly meetings with local RF team to provide updates for all our optimization activities
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Ericsson, Plano TX January 2013 to November 2014
LTE Lead RF Engineer for (LTE Tuning & Post Launch Optimization for Sprint Network Vision Project Dallas Market)
Reviewed final RF design and the initial data fill for any discrepancies
Performed parameter audits using Bulk CM export from ERTT
Set-up tuning KPIs with reference to design KPIs
Created exclusion zones with the customer approval
Prepared drive routes for cluster drives, co-ordinated and supervised Drive Test Engineers for effective cluster drive to meet customer expectations
Verified MTU settings of laptop and backhaul for the testing
Performed site shakedown using TEMs Investigation and DRT scanner
Collected drive data to verify handover between sectors
Analyzed drive test data using TEMS discovery to verify Throughput (DL, UL, connections Setup time and Handover success)
Reviewed daily eUtran alarm reports, evaluated site performance using ENIQ, and troubleshot degrading site performance using OSS Amos commands
Troubleshot accessibility, retainability and handover related issues
Performed cluster tuning by ensuring areas of poor RSRP, RSRQ,CINR, and throughputs are optimized
Troubleshot VSWR,PCI Collision, Interference issues
Sprint NASCAR 2013
Lead the LTE deployment and Performance Optimization for the Sprint NASCAR Cows providing coverage for the events.
Ericsson, Plano TX June 2011 to January 2012
RAN Engineering (LTE Tuning)
Reviewing final RF design and the initial data fill for any discrepancies
Set-up tuning KPIs with reference to design KPIs
Created exclusion zones with the customer approval
Created drive route for cluster drive
Verified MTU settings of laptop and backhaul for the testing
Performed site shakedown using TEMs Investigation and DRT scanner
Analyzed drive test data using TEMS discovery and Windcatcher to verify Throughput (DL, UL, and Handover success)
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Ericsson, Plano TX October 2010 _ May 2011
RAN Engineering (LTE Design)
Reviewed Atoll parameter settings using Ericsson Link Curve and Atoll standard
Used ATOLL to run Simulation for Baseline project
Created ACP from the Baseline ATOLL project
Ran ACP for initial KPIs of the Baseline Project
Ran RSRP analysis to review the project/market coverage overview
Selected antenna type, Down-Tilt, Azimuth, and Rad Center to meet the required KPIs
Ran Simulation for RSRQ and SINR
Optimized and designed to meet the require KPIs
Created PICD for final project presentation/review
CONSULTING ASSIGNMENTS
LCC Consultant for Huawei Chantilly, VA September 13th – October 22nd, 2010
Performing ATOLL Model Tuning for Nextel International in Mexico.
Verifying CW drive test data and convert it to UTM Zones
Import CW drive test data into Atoll
Filter the clutter using filtering assistant in Atoll
Calibrate the K value within the Forsk Atoll recommended ranges
LCC Consultant for AT&T Wireless, Pittsburgh, PA June 16th – August 9th, 2010
Sr. RF Engineer Work on CGSA project filing for FCC license
Extensive use of ATOLL & 850 Engineering Data Reporting Toolkit
Verifying the contours of the existing license and the new extension agreement using Atoll
Create coverage plots for Extension Agreement using Atoll
Identify all the down-tilt of the sectors included on the Extension Agreement.
Create FCC Contours for the New CGSA using ATOLL
ZTE, Kansas, KS May 10th – June 14th, 2010
RF Design Engineer
Responsible for Sprint CDMA RFP design for Raleigh/Durham using Planet EV
Create Rapid Planning, Traffic map, and Monte Carlo for the RFP
AT&T GSM and UMTS Network (Contractor), Hanover, MD Feb 2009 – May 7th 2010
RF Performance Engineer
Responsible for the GSM and UMTS network in Washington and Baltimore areas
Resolved customer complaint, regarding drops, no service, or slow connectivity
Involve collecting drive test data using Tems
Processed and Analyzed data in Actix
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Monitored site in OSS for traffic, drop, and T1 issue using AT&T MML tool
Create Trident for future sites using ATOLL, Trident Tool, and Topo Map
Perform 911 test during switch upgrade and new site integration
Conduct training for newly hired drive testers
CRICKET COMMUNICATIONS 20017 - 2009
CRICKET COMMUNICATIONS, CDMA EVDO & Voice Network Raleigh, NC Apr 2007 – Jan 2009
RF Design & Performance Engineer
Managed, and support general contractors for the Raleigh and Burlington Networks build
Attend antenna and line sweeps to verify proper connection
Involve in the 2007 Cricket Raleigh market launch
Conduct network baseline drive test and analyze the data for network optimization using Windcatcher
Analyze daily network Statistic using Schema mentor tool
Performance RF optimization analysis and change of parameter (MCTA, Handoff, PTO(power)) base on drive test and site stats reports
Provide daily and weekly report to management of the network performance
Resolve customer complaint, regarding drops, no service, or site issue
Developed PN offset plan for Raleigh market
Daily update Siterra database with cell site information
Monitor daily network statistics for dropped calls, ineffective attempts, fail hand down, and hard handoff
Attend weekly meeting with regional manager
Provide quarterly marketing maps to Sales & Marketing team
US Cellular 2000 – 2007
RF Design Engineer
Involve in site design using Planet EV propagation tool
Performed candidate analysis, site selection, field site visit, inspected construction drawings
Calculated link budget for power balance
Designing and optimizing new and existing cell sites in Washington and Oregon markets
Projects include capacity forecasting, carrier deployment, capital budgeting, managing the construction of new cell sites
Design and optimization of CDMA repeater sites in coverage hole areas
Design MW line of sight using PathLoss tool for rural sites with no T1 available
Measure the distance and Freznel zone to the select the MW radio frequency
Performed neighbor list tuning array (NLTA) using CSVS logs
Drive test analysis, propagation modeling, and site candidate Selection
Performed CDMA RF optimization in rural and suburban morphologies
Performed propagation model tuning for different morphologies
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Performed capacity planning exercise to ensure effective resource allocation
Performed FAA aeronautical obstruction clearance, FCC AM interference analysis and RF emissions health and safety analysis
Developed frequency plan and PN offset for WA4 RSA
Designed and Optimized CDMA overlay of Idaho 5 and 6 RSA TDMA and AMPS networks
Led USCC NW engineering team for E-911 implementation process
EDUCATION
Master’s in Business Administration (MBA), emphasis in General management, City University, Bellevue WA
Bachelor of Science in Electrical Engineering, emphasis in Wireless Communication, Washington State University, Pullman WA
TRAINING/CERTIFICATION:
AWS Cloud Practitioner Certificate
Ericsson Customer Project Management Certification (CPM)
Ericsson VOLTE Technology Certification
Ericsson LTE Technology Certification
Ericsson IP Technology Certification (Routing & Switching)
Ericsson LTE L11B Performance Management, Tuning and Optimization
Ericsson LTE L11B Configuration and Functionality
Windcatcher Plus
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