PHILIP E. IYAMABO

Mobile: +1-419-***-****

E-Mail: addbau@r.postjobfree.com

LinkedIn profile: https://www.linkedin.com/in/philip-iyamabo-2b742659

Experienced RF engineer with extensive background in Network design, Optimization and Performance Management

EDUCATION

UNIVERSITY OF TOLEDO, OH

MSc Electrical Engineering with specialization in wireless communications 2015-2016

CISCO CERTIFIED NETWORK ASSOCIATE 2009

UNIVERSITY OF LAGOS

BSc Electrical Engineering 2008

EXPERIENCE SUMMARY

Over 10 years of wide experience in LTE and VoLTE RF Network Design & Execution, Field Optimization Activities, performance monitoring and improvement activities resource management and technical support.

Network Planning/Design

Coordinated a team for Formulating and implementing strategies for new and live Telecom projects which include managing the complete range of project activities right from conceptualization to installation, testing, maintenance and troubleshooting of networks.

Complete preparation of technical proposal Documents for sign off relating to Radio Network Planning/Design which include nominal and final network planning according to requirements of the client and execution of projects within stipulated time under the budget.

Network Optimization

Successfully improved Coverage, Capacity and quality of network through hardware optimization of antennae tilt and orientation based on recommendations made after analysis of drive-test logs using post processing tools.

Successfully improved Coverage, Capacity and quality of network through soft optimization of network parameters by monitoring the KPI’s and providing necessary parameter adjustment suggestions for network performance improvement.

Solved network issues through troubleshooting layer 3 signalling messages to identify the root cause.

Technical Support

In-depth understanding of Radio propagation, WiMAX, CDMA and LTE.

Organising technical meetings with clients for requirement gathering.

Providing high-end technical support at sites and ensuring high client satisfaction levels through promptly addressing client’s problems.

I have very good troubleshooting skills relation to network performance and optimization issues.

Familiar with Samsung/Ericsson/Nokia Equipment

Provide trainings for team members.

WORK HISTORY

Object Technology Solutions Inc Overland Park, Kansas October 2017 till date

RF Engineer III Sprint Contractor

JOB RESPONSIBILITIES

Analysis of LTE/VoLTE Cluster Drive test logs and making RF shaping and parameter change recommendations to improve coverage and quality on the network

LTE/VoLTE KPI monitoring and Improvement based on top offender evaluation.

Traffic Management parameter optimization.

Feature testing and Trials to improve LTE/VoLTE KPI.

Small Cells optimization for Special Events or in-building coverage solutions

LTE CFR/CDR Top offender Analysis and resolution

Cell Availability monitoring

Link Budgeting and network dimensioning to maximize coverage and capacity,

PCI planning, PRACH planning, Tracking Area planning, Frequency planning, Neighbour planning and creating search ring areas.

Coverage prediction and effective signal analysis using Atoll/Planet for LTE/VoLTE

Propagation model calibration.

Determining the best location for site placement/inter site distance based on Agoop data and morphology

Creating SCIP Packages, RFDS, CIQ, ACD and Desktop reviews

E911 Submissions

Forecasting network needs based on current capacity trend

Work with the Implementation and Operations Teams on the cell site’s antenna and RF equipment configuration and database parameters

Present ideas, technical and non-technical, in a logical, compelling manner in a written format and verbally

Familiar with Samsung/Ericsson/Nokia Equipment

Provide Trainings

Verveba Telecom, Richardson Texas April 2017 to September 2017

RF Design Engineer for AT&T project

JOB RESPONSIBILITIES

Link Budgeting and network dimensioning to maximize coverage and capacity based on client’s requirement, SINR and Throughput

Nominal and Final RF design, Site placements, Antenna orientation and Tilts using MapInfo and Google Earth

Re-design of existing sites parameters relating to antenna tilt, height and orientation to improve coverage and capacity

PCI planning, PRACH planning, Tracking Area planning, Frequency planning, Neighbour planning and creating search ring areas.

Generating prediction plot for Coverage, Capacity and interference estimations using Atoll

Providing preliminary LTE Network/Cluster design using MapInfo and Google earth

Preparing Design proposals and reports for approval

Providing suitable suggestions regarding implementation of features i.e. HARQ, MIMO, IRC, ICIC, TTI bundling, UL Comp to improve coverage and capacity

Forecasting network needs based on current capacity trend

Drive test route creation

Collecting and post processing of Cluster drive test log files using Actix

Collecting and analysing Drive test logs and make optimization recommendations on antenna adjustments to improve the RSRP, RSRQ, SI NR, balance load, improve PRB utilization, RRC Connection Failure Rate, Data ERAB Drop Rate, DL/UL Throughput, Intra-eNodeB HO Failures, and VoLTE ERAB Drop Rate

Neighbour List optimization

Provide Training for new and lower level employees

Huawei Technologies Co, Nig Plc July 2009 – Dec 2014

RF Design and Optimization Team Lead

PROJECTS HANDLED AND JOB RESPONSIBILITIES

SWiFT Nigeria LTE Project

Lagos, Nigeria (230 LTE TDD Sites)

RF Design and Optimization Team Lead (Feb 2013-Dec 2014)

Link Budgeting and network dimensioning to maximize coverage and capacity based on client’s requirement, SINR and Throughput

Nominal and Final RF design, Site placements, Antenna orientation and Tilts using MapInfo and Google Earth

Supervising Technical Site Surveys (TSS) for nominal planned sites to identify potential candidates and RF redesigns keeping in view the topography and population

PCI planning, PRACH planning, Tracking Area planning, Frequency planning, Neighbour planning and creating search ring areas.

Providing preliminary LTE Network/Cluster design using MapInfo and Google earth

Single site verification tests and acceptance

Managing a Team to carryout Pre-Launch Cluster Optimization and post Launch Cluster Optimization to improve coverage and capacity

Managing a Team of Drive-test Engineers, to carry out Drive-tests cluster by cluster

Collecting and analysing Drive test logs and make optimization recommendations on antenna adjustments to improve the RSRP, RSRQ, SI NR, balance load, improve KPI relating to PRB utilization, RRC Connection Success Rate, Data ERAB Drop Rate, DL/UL Throughput, Intra-eNodeB HO, and VoLTE ERAB Drop Rate

Responsible for collecting and using hourly/daily service measurement data and activation of features/system parameters to optimize the network and improve the KPI relating to RRC Connection Success Rate, Data ERAB Drop Rate, DL/UL Throughput, Intra-eNodeB Hand over, and VoLTE ERAB Drop Rate

Network performance improvement by analysing worst cells and making recommendations on RF related parameters

Providing suitable suggestions regarding implementation of features i.e. HARQ, MIMO, IRC, ICIC, TTI bundling, UL Comp to improve coverage and capacity

Creating coverage maps on MapInfo based on data from drive test

Neighbor List optimization

Forecasting network needs based on current capacity trend

Carrier Aggregation Optimization

Organise weekly meetings with customer to understand the concern and explain on topics that are not clear

Trainings team members on 4G Principles and Radio Network Design/optimization

Handling customer complaints

Spectranet Nigeria LTE Project

Lagos, Nigeria (175 WiMAX 16e Sites Upgrade to LTE TDD Sites)

RF Design and Optimization Team Lead (July 2012- Feb 2013)

Development of strategies on best approach to migrate from WiMAX to LTE using existing frequency

Link Budgeting and network dimensioning to maximize coverage and capacity based on client’s requirement, SINR and Throughput

Nominal and Final RF design, Site placements, Antenna orientation and Tilts using MapInfo and Google Earth

Supervising Technical Site Surveys (TSS) for nominal planned sites to identify potential candidates and RF redesigns keeping in view the topography and population

PCI planning, PRACH planning, Tracking Area planning, Frequency planning, Neighbour planning and creating search ring areas.

Providing preliminary 4G Network/Cluster design using MapInfo and Google earth

Generating prediction/simulation plot for coverage and interference using Atoll and overlaying on MapInfo

Creating coverage maps on MapInfo based on data from drive test.

MTN Cameroon WiMAX Project

Douala and Yaoundé, Cameroon (226 WiMAX 16e Sites)

RF Design and Optimization Team Lead (Jan 2012- July 2012)

Nominal and Final RF design, Site placements, Antenna orientation and Tilts using MapInfo and Google Earth with following System parameters: TDD duplexing, 3.5 GHz Spectrum, 5 MHz Channel BW, 1x3x4 Frequency Reuse and 4x4 MIMO system

Link Budgeting and network dimensioning to maximize coverage and capacity based on client’s requirement, SINR and Throughput

Generating different Prediction/Simulation plots, such as: RSSI (Effective Signal Analysis), Coverage by C/(I+N), Coverage by Transmitter (Best Server) for planned sites.

Conducting Technical Site Surveys (TSS) for nominal planned sites to identify potential candidates and RF redesigns keeping in view the obstacle locations and roof edge clearance

RF Parameters planning for new sites such as: Preamble Index, Frequency, CDMA Codes, Neighbour planning and creating search ring areas.

Managing a Team to carry out Single site verification tests, throughput tests

Managing a Team of Drive-test Engineers, to carry out Drive-tests cluster by cluster

Analyse Drive Test logs and make optimization recommendations on antenna adjustments to improve the RSSI and SI NR

Managing a Team to carryout Pre-Launch Cluster Optimization and post Launch Cluster Optimization to improve coverage and capacity

Network performance improvement activities which involves fine tuning of Physical parameters (Tilt, Azimuth, Height) and System parameters (Power, Frequency, TDD Ratio, Signalling REP, Idle Mode etc.) in order to optimize network performance and resources.

To generate the reports for SSV and Cluster Optimization for whole network

Interface to customer for all RF Optimization related issues.

Troubleshooting Access, throughput and Interference related issues

Togo Telecoms CDMA Project

Lomé, Togo (60 CDMA sites)

RF Optimization Engineer (Nov 2011-Jan 2012)

Carrying out cluster Drive-tests

Post processing of Drive test log files to analyse drop calls, poor service issues and perform optimization activities through antenna adjustments azimuth and tilts to improve the KPI

Preparing technical report for network optimization, which includes traffic statistics data and drive test analysed data which compares Pre-Drive test data and Post-Drive test data

Signal trace analysis to find and add missing neighbours

MTN Nigeria WiMAX Project

Lagos, Abuja and P. Harcourt, Nigeria (340 WiMAX 16e Sites)

RF Design and Optimization Team Lead (July2010- Nov 2011)

Nominal and Final RF design, Site placements, Antenna orientation and Tilts using MapInfo and Google Earth with following System parameters: TDD duplexing, 3.6 GHz Spectrum, 5 MHz Channel BW, 1x3x6 Frequency Reuse and 4x4 MIMO system

RF design for new sites to improve capacity and coverage which includes Site placements, Antenna orientation and Tilts

Link Budgeting and network dimensioning to maximize coverage and capacity based on client’s requirement, SINR and Throughput

Generating Prediction/Simulation plots, such as: RSSI (Effective Signal Analysis), Coverage by C/(I+N), Coverage by Transmitter (Best Server)

Conducting Technical Site Surveys (TSS) for nominal planned sites to identify potential candidates and RF redesigns keeping in view the obstacle locations and roof edge clearance

RF Parameters planning for new sites such as: Preamble Index, Frequency, CDMA Codes, Neighbour planning and creating search ring areas.

Single site verification and acceptance

Managing a team to perform cluster Drive tests

Generate Cluster and SSV Optimization reports for whole network

Generating Coverage map based on Results from Drive-Test.

Troubleshooting network access issues, Low throughput issues, Congestion issues and Interference issues

Training team members for WiMAX technology.

Interface to customer for all RF Optimization related issues.

Handling RF Related customer complaints and remote user trace

Analysis of Call History Records to identify users experiencing poor performance and Recommending solutions to improve the user’s performance

KPI Monitoring/reporting and identification of congested/over utilized cells in the network

Network performance improvement activities which involves fine tuning of Physical parameters (Tilt, Azimuth, Height) and System parameters (Power, Frequency, TDD Ratio, Signalling REP, Idle Mode etc) in order to optimize network performance and resources

SWiFT Nigeria WiMAX Project

Lagos, Nigeria

RF Optimization Engineer (Nov 2009- July 2010)

RF Parameters planning for new sites such as: Preamble Index, Frequency, CDMA Codes, Neighbour planning and creating search ring areas.

Interface to customer for all RF Optimization related issues.

Single Site Verification Tests and acceptance

Generate SSV reports

MULTI-LINKS Nigeria CDMA Project

Lagos, Nigeria

Site Survey/Audit and Drive-Test Trainee Engineer (July 2009- Nov 2009)

Planning of CDMA antennas orientation: Heights & Tilts, changing of parameters like Pilot Power

Neighbour planning for new sites integrated into the network.

Preparing technical site survey (TSS) reports and carrying out RF survey for new site acquisition.

Post processing and analysis of Drive log files for sudden drop calls, Quality issues

Preparing technical report for network optimization, which includes traffic statistics data and drive test analysed data.

Daily KPI monitoring for network performance in both BSC level and cell-carrier level

KPIs analysis and optimization for network performance monitoring by modification of RF parameters

Neighbour optimization to reduce call drop

Preparing technical weekly report.

SKILLS

CDMA/WiMAX/LTE RF Design, optimization and KPI management for new and mature network

RFDS

Parameters and feature Optimization

Atoll

MapInfo

Actix

TEMS

Genex Probe/Assistant

MS Excel, Word, PowerPoint

Google Earth

Good analytical skills

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