Ousainou Demba
US Citizen 919-***-**** ******@*******.*** https://www.linkedin.com/in/ousainou-demba
Summary:
RF Design & Optimization Engineer specializing in creating seamless connections between complex systems to enhance functionality, improve efficiency, and drive innovation. History of success translating business needs into technical solutions—connecting software, hardware, and databases to work together smoothly. Working closely with cross-functional teams to troubleshoot, customize, and optimize workflows, ensuring every piece of technology works as a cohesive unit. Eager to use computing and telecommunication skills in (RF Design, Optimization & Integration).
Education:
Master’s in Business Administration (MBA), emphasis in General management, City University, Bellevue WA.
Bachelor of Science (BS) Electrical Engineering, emphasis in Wireless Communication, Washington State University, Pullman WA.
Training/Certification:
IBM certified AI/ML Engineer
AWS Cloud Practitioner Certificate
Ericsson: Cloud Native 101 Certificate
Ericsson: Cloud Native 101: Ecosystem and Architectural Components
Ericsson: Cloud Security Certificate
Ericsson: The Hack - Security Training
Ericsson: Product security and privacy in Ericsson’s product value flow
Ericsson: Differentiating between V-RAN, Open RAN and Cloud RAN
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
Professional Experience:
Ericsson, Plano TX. 2020 – Oct 2024
Senior RAN Integration Engineer for Ericsson DNOC ATS Team.
Troubleshooting 5G NR and LTE site ENDC drops within 5G RAN
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.
Conduct Call Test for accessibility, handover and Throughput
Sprint. Feb 2019 - Mar 2020
Senior RAN/RF Consultant.
Review daily performance stats from PRTS for degrading KPIs.
Run performance report on the worst sites/cells using Patrol.
RF System Design & Optimization
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.
T-Mobile, Frisco, Texas. Jan 2016 - Dec 2018
Consulting Assignments Data Analytics Engineer (RF Deployment).
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.
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.
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).
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. Jul 2015 – Nov 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. Nov 2014 – Jul 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.
Ericsson, Plano TX Oct 2010 - Nov 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, coordinated 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.
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).
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.
Additional Experience:
Huawei Chantilly, VA
LCC Consultant
AT&T Wireless, Pittsburgh, PA
LCC Consultant
ZTE, Kansas, KS
RF Design Engineer
AT&T GSM and UMTS Network (Contractor), Hanover, MD
RF Performance Engineer
Cricket Communications
Cricket Communications, CDMA EVDO & Voice Network, Raleigh, NC
RF Design & Performance Engineer
US Cellular
RF Design Engineer