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5G/VoLTE/LTE NPI Consultant

Location:
United States
Posted:
March 26, 2021

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Resume:

PROFESSIONAL SUMMARY

Senior RF Engineer experienced in both design and optimization. Over fifteen years’ of multi-national progressive experience in radio access network design, optimization, and RF project management on multi-vendor platforms. I have an excellent understanding of VoLTE, LTE, UMTS & GSM RAN architecture, functionalities and interoperability

Senior RF Consultant on LTE/VoLTE at Verizon Wireless, SPRINT/T-Mobile, AT&T

Education

MSc. Modern Digital & Radio Frequency Wireless Communications

UNIVERSITY OF LEEDS, UNITED KINGDOM

BSc. Electrical and Electronic Engineering

KWAME NKRUMAH UNIVERSITY OF SCIENCE AND TECNOLOGY, GHANA

KEY SKILLS

Excellent understanding of VoLTE, LTE, HSPA+/WCDMA/GSM principles, architecture and interoperability.

Excellent knowledge of Ericsson VoLTE/LTE/UMTS/GSM counters, parameters and RAN features

Excellent understanding of layer management in multi-carrier VoLTE/LTE/UMTS networks.

Strong RAN troubleshooting skills – Call flow and Layer 3 messages analysis – for macro sites, DAS sites and small cells in multifaceted networks - VoLTE, LTE, WCDMA, and GSM.

Strong RTWP troubleshooting skills for both macro sites DAS systems and small cells.

Expert knowledge of Ericsson LTE/WCDMA/GSM OSS tools.

Proficiency in use of ENM/OSS Tools, Nexplorer, MCOM, MapInfo, Asset, Business object, NetAct, NPO, TEMS Investigation Data Collection, TEMS Route Analysis and TEMS Discovery, secureCRT, ActixOne, WindCatcher, Wireshark, Business Object, Anritsu Spectrum Analyzer, Geoplan, Atoll and DataPro

Basic knowledge of python VBA and C++ programming.

Good knowledge of eNodeB scripting techniques.

Good knowledge of 5G NR and network architecture/functionalities

Customer experience management; utilizing call tracing tools.

CQI benchmarking utilizing drive data analysis.

Excellent project management skills – project scheduling and planning.

Excellent leadership and organizational qualities.

Excellent analytical and presentation skills.

Employment History

August 2019 – to – August 2020

Senior RF Consultant: VoLTE Optimization Engineer (Sprint Network Vision, Overland Park)

Consulting Company: Global Technology Associates, LLC

Worked with a team of VoLTE RF engineers on Network wide parameter trials that positively impact network KPIs and independently perform RF network optimization activities on my market allocation

Defined best practices and continual process improvements needed to ensure timely and quality delivery

Performed VoLTE parameter audits and recommendations to improve VoLTE performance

Perform VoLTE post-launch optimization, customer complaint investigation and deep dive SIP analysis using TrueCall

Perform drive test Post-processing and SIP/RTP analysis by using Windcatcher, IRISVIEW and TrueCall.

Optimize traffic Management Parameters to ensure Seamless Handover and Performance and also to mitigate Muting/One-Way audio Rate

Prepare KPI reports and documentation based on the Network analysis and provide regular technical updates and status reports

December 2018 – to – May 2019

Senior RF Consultant: Ericsson 2.6MHz 4G LTE Expansion Rollout (Ericsson Ghana on MTN Project)

Consulting Company: Evolved Technology Limited

Liaised with Implementation and Integration Managers to ensure newly integrated sites are as per RF design and meet minimum performance requirements

Supervised and mentored the RF team during LTE Pre Launch RF Optimization, LTE Post Launch RF Optimization and LTE Performance Management.

Prepared reports for the optimized clusters and provided regular technical updates and status reports

Streamlined processes with other heads of departments to ensure deadlines are met and overall achievement of team objectives.

Mentored the LTE RF team and streamlined processes to meet customer demands and expectations.

Co-ordinated and Supervised Drive Test Engineers for New LTE Sites

Optimized areas of poor RSRQ, weak RSRP and improved SINR distribution for both pre-Launch and Post Launch clusters

Analyzed OSS, traffic and drive test data and recommended physical/parameter changes to improve performance;

April 2017 – to – November 2018

Senior RF Consultant: LTE/VoLTE Network Optimization and Performance Improvement (Sprint Network Vision, Okahoma City, Oklahoma)

Consulting Company: Global Technology Associates, LLC

Team Lead for Antenna Modification and Carrier Additions Project, ensuring LTE/VoLTE site performance degradations after site visits are fixed

Completed a pre/post parameter checks and also performed GS audit to ensure all parameters are aligned

Ensured carrier aggregation feature is enabled and activated and traffic load is fairly balanced between the various carriers

Troubleshoot cause of MIMO degradation and provide improvement recommendations

Performed 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 provided recommendations to improve performance

Ran simulations of live RF performance network using RF propagation tools and RF model tuning to optimize the LTE network

Improved SINR and Throughput distribution within the assigned cluster using advance automation optimization and predictive tools to automatically shape the RF network footprints and consequently minimize interference by modification of cost effective network parameters

Used Drive Test data to supplement the coverage predictions and simulations to capture coverage holes

Defined LTE parameter settings including multi band load balancing, traffic management, automatic neighbor relation design, LTE power optimization, and carrier aggregation optimization.

Identified impact of LTE parameter and new feature changes to determine optimal network configurations

Used Live data from the network to provide traffic density distribution to prioritize geographical areas with higher traffic density, thus, enabling comparable analytics of higher/lower traffic density during optimization for RF Shaping and CINR improvement, thereby achieving a better overall network performance

Created and analyzed network KPI data reports, identify trends and report results with supporting data to other engineering teams and managers

Created RFDS, NST, CIQ forms to support new and existing site designs and upgrades

Prepared reports for the optimized clusters and provide regular technical updates and status reports

January 2017 – to – April 2017

Senior RF Consultant: RF Shaping and SINR Improvement (AT&T – Los Angeles, California)

Consulting Company: HAIN Solutions, Inc.

Ran simulations of live RF performance network using RF propagation tools and RF model tuning to optimize the LTE network

Improved Created RFDS, NST, CIQ forms to support new and existing site designs and upgrades

Prepared reports for the optimized clusters and provide regular technical updates and status reports

SINR and Throughput distribution within the assigned cluster using advance automation optimization and predictive tools to automatically shape the RF network footprints and consequently minimize interference by modification of cost effective network parameters

Used Drive Test data to supplement the coverage predictions and simulations to capture coverage holes

Used Live data from the network to provide traffic density distribution to prioritize geographical areas with higher traffic density, thus, enabling comparable analytics of higher/lower traffic density during optimization for RF Shaping and CINR improvement, thereby achieving a better overall network performance

January 2016 – to – September 2016

Senior RF Consultant: Ericsson LTE Optimization Team Lead (Ericsson Ghana on MTN Project)

Consulting Company: Evolved Technology Limited

Responsible for mentoring the RF team during LTE Pre Launch RF Optimization, LTE Post Launch RF Optimization and LTE Performance Management.

Ensure newly integrated sites are as per RF design and meet minimum performance requirements

Prepared reports for the optimized clusters and provided regular technical updates and status reports

Streamlined processes with other heads of departments to ensure deadlines are met and overall achievement of team objectives.

Mentored the LTE RF team and streamlined processes to meet customer demands and expectations.

Co-ordinated and Supervised Drive Test Engineers for both New LTE Sites and Cluster

Optimized areas of poor RSRQ, weak RSRP and improved SINR distribution for both pre Launch and Post Launch clusters

Analyzed OSS, traffic and drive test data and recommended physical/parameter changes to improve performance;

January 2015 – to – January 2016

Senior RF Consultant: Network Design and System Performance Engineer ( Verizon Wireless Network, North Carolina)

Consulting Company: MobileNet Services, Inc.

Collected and used hourly/daily service measurement data to optimize the network and reduced VoLTE/LTE lost calls and ineffective attempts;

Developed standardized post-drive analysis reports for clusters and single sites, including RSRP, RSRQ, and SINR; heatmaps for poor coverage, optimization opportunities, parameter deltas across carriers

Effected parameter changes to balance traffic between 700 and 2100 carriers for optimum performance

Troubleshoot/resolved PIM and/or VSWR issues within the base station lines and antenna system.

Performed VoLTE/LTE drivetest, and post-drive analysis and provided recommendations in response to complaints and trouble tickets

Collected, tracked and reported performance-impacting alarms in the network

Signed off system performance engineering tasks in Siterra after completion and approval

Conducted drive test and collected data whilst resolving customer complaints using Datapro tool

Carried out data analysis/post-processing with tools such as Irisview,Windcatcher/ActixOne/MapInfo

Utilized mapping software such as MapInfo, ArcGIS to aid optimization of the network

Utilized propagation and optimization modeling tools such as GeoPlan and Atoll

August 2014 – to – January 2015

Senior RF Consultant: LTE Design, Pre and Post Launch Optimization Engineer (AT&T, WABA Market)

Consulting Company: MobileNet Services, Inc.

Created search polygons, generated coverage predictions and updated cell/transmitter tables with recommended parameter changes

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 Centre 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

Co-ordinate and Supervise Drive Test Engineers for both New LTE Sites and Cluster Drives

Prepare Cluster and SSV reports and submit for customer review and acceptance

Optimize areas of poor RSRQ, weak RSRP and improve SINR distribution for both pre Launch and Post Launch clusters

Perform root cause analysis for events such as Drops, Handover, TNOL (Time Not on LTE) and Access failures using ACTIX for post processing and event analysis for both pre Launch and Post Launch clusters

Mentor the LTE RF team and streamline processes to meet customer demands and expectations.

March 2014 – to – July 2014

Senior RF Consultant: Ericsson LTE Post Launch Optimization Engineer of Sprint Nokia/Ericsson Multi-Band Network (Sprint Network Vision, Texas)

Consulting Company: MobileNet Services, Inc.

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

Performed extensive parameter optimization to improve network performance

Provided guidance on LTE Site Parameters and Neighbor Planning, LTE Parameters and Neighbor Tune-up, LTE Database / Tools preparation and maintenance, LTE Site Engineering, LTE interaction with other technologies (UMTS).

Provided solutions, processes and methodologies to allow the market team to meet the LTE Pre-Launch / Post Launch Performance KPI's.

Troubleshoot VSWR,PCI Collision, Interference issues

Analyzed OSS, traffic and drive test data and recommended physical/parameter changes to improve performance;

Prepared regular technical updates and status reports, and maintained optimization change logs;

Interfaced with all levels of management and collaborate with other groups

Co-ordinated and Supervised Drive Test Engineers for both New LTE Sites and Cluster Drives

Optimized areas of poor RSRQ, weak RSRP and improve SINR distribution for both pre Launch and Post Launch clusters

Performed root cause analysis for events such as Drops, Handover, TNOL (Time Not on LTE) and Access failures using TEMS Discovery for post processing and event analysis for both pre Launch and Post Launch clusters

Mentored the LTE RF team and streamline processes to meet customer demands and expectations.

Prepared reports for the optimized clusters and provided regular technical updates and status reports

December 2013 – to – February 2014

Senior RF Consultant: ALU LTE Pre and Post Launch Optimization Engineer (AT&T, WABA Market)

Consulting Company: MobileNet Services, Inc.

Co-ordinated and Supervised Drive Test Engineers for both New LTE Sites and Cluster Drives

Prepared Cluster and SSV reports and submitted for customer review and acceptance

Optimized areas of poor RSRQ, weak RSRP and improved SINR distribution for both pre Launch and Post Launch clusters

Performed root cause analysis for events such as Drops, Handover, TNOL (Time Not on LTE) and Access failures using ACTIX for post processing and event analysis for both pre Launch and Post Launch clusters

Mentored the LTE RF team and streamlined processes to meet customer demands and expectations.

Prepared reports for the optimised clusters and provided regular technical updates and status reports

November 2012 – December 2013

Senior RF Consultant: Ericsson LTE Post Launch Optimization Engineer (Sprint Network Vision - Houston, East & West Texas, Albuquerque, San Antonio Markets)

Consulting Company: MobileNet Services, Inc.

Responsible for mentoring the RF team during LTE Pre Launch RF Optimization, LTE Post Launch RF Optimization and LTE Performance Management.

Network performance monitoring and improvement and newly integrated site shakedown support

Provided guidance on LTE Site Parameters and Neighbor Planning, LTE Parameters and Neighbor Tune-up, LTE Database / Tools preparation and maintenance, LTE Site Engineering, LTE interaction with other technologies (UMTS).

Provided solutions, processes and methodologies to allow the market team to meet the LTE Pre-Launch / Post Launch Performance KPI's.

Troubleshoot VSWR,PCI Collision, Interference issues

Analyzed OSS, traffic and drive test data and recommend physical/parameter changes to improve performance;

Prepared regular technical updates and status reports, and maintain optimization change logs;

Interfaced with all levels of management and collaborate with other groups

September 2011 – August 2012

Senior RF Consultant: Ericsson 3G/HSPA UTRAN Tuning and Optimisation Engineer (Ericsson Nigeria on MTN & Airtel Project)

Consulting Company: First Point Group

Back office tuning and Optimisation Engineer for 3G Network with HSDPA;

Co-ordinated and Supervised Drive Test Engineers for both New 3G Sites and Cluster Drives

Performed cluster tuning by optimizing areas of poor EcNo, weak RSCP, pilot pollution and performing root cause analysis for events such as Drops and Access failures for both CS and PS (HSDPA/EUL) calls using TEMS Discovery for post processing and event analysis.

Performed pre-launch cell parameter audits to ensure configured parameters are aligned with approved standard towards meeting cluster launch KPI targets

Delivering Network optimization recommendations based on live data KPI, Statistics drive test analysis.

February 2011 – August 2011 (Ericsson USA)

Senior RF Consultant: Ericsson UMTS NPI of AT&T 3G/HSPA UTRAN Network

Consulting Company: First Point Group

Network Performance Monitoring and Improvement of different RAB services (CS, PS, HSDPA, and EUL) using live data KPI, Statistics and tools

Experienced with the OSS (WNCS, Common Explorer, Element manager etc.)

Experienced with multi-carrier (up to fourth carrier) networks (Traffic balancing between 850/1900 carriers on daily basis).

Problematic areas and Features Optimization both cell and RNC level, Power and Code congestion, Load Sharing, Inter-Intra freq HO, iRAT, CPICH power, UL RSSI, Pilot Pollution

Troubleshoot performance degradation of Inverse Multiplexing of ATM cells and T1/E1 and provide recommendations

Troubleshoot Aal2QosProfile and AtmTrafficDescriptors to ascertain planned configuration for both NobeB and RNC

Optimize Physical parameters like Azimuth, mechanical & electrical tilt, height of antenna, and horizontal & vertical beam width to improve quality.

Newly launched cells Initial Settings, neighbors, verification of correct functionalities

Analyze Retainability, Accessibility and Packet drops issues, provide recommendations to meet KPIs

Traffic analysis using daily traffic report

October 2009 – February 2011

2G/3G RF Optimization Supervisor for Airtel 3G/HSPA UTRAN Network, Ghana

Back office Tuning and Optimisation Engineer for Zain 2G/3G Network with HSDPA; also supervise and train junior RF engineers

Analyzing & Rectifying neighbour discrepancies, adjacent Co-BSIC and missing neighbours

Interference analysis of Co-channel and Adjacent Channels

Optimizing Physical parameters like Antenna type, mechanical & electrical tilt, and height of antenna, cable type, and horizontal & vertical beam width to improve quality.

Conducting drive test for EDGE and GPRS

Perform Log files analysis using layer 3 messages

Delivering Network optimization recommendations based on drive test analysis.

Reporting KPIs statistics

Traffic analysis using daily traffic report

Poor RSCP and EcNo analysis and recommendation to improve coverage.

Drop calls, Access Failure Rates, Packet drops analysis and provide recommendations to meet KPIs

R99 and HSDPA stationary test analysis

Pilot pollution and IRAT HO analysis

Coordination with RNC engineer for site status.

April 2009 - July 2009 (Ericsson Ghana on Airtel Project)

RF Consultant: Ericsson 3G Tuning Team lead for Airtel 3G/HSPA UTRAN Network

Works in tuning team back office for Airtel 3G Network with HSDPA; also as adhoc support to 2G tuning activities

Performs cluster drivetest post- processing and analysis, generates output plot files, statistics (UTRAN PM Counters) and reports, and ensures consistency both on software and hardware configurations.

Provides recommendations to achieve Cluster Drive KPI sign- off, including UTRAN and Inter- RAT parameter trials and driving alarms/faults towards resolution in coordination with O&M.

November 2008 - April 2009 (Ericsson Ghana on Airtel Project)

Senior Ericsson 3G Drive Test and Optimisation Engineer for Airtel 3G/HSPA UTRAN Network

Delivering drive testing Data Collection and Analysis and Initial Tuning for 2G and 3G sites network

3G RF Drive & Data collection

Field drive test for cluster tuning, Drive Test execution, post processing of drive test data, drive test analysis and recommendations.

CS voice short call to access call setup performance and to study the UE idle and active mode behavior

CS voice long call to perform retainability tests and IRAT handover performance

Packet Interactive Call made to a FTP server to determine throughput and retransmissions on uplink and downlink. The RAB is configured to transition through the various R.99/HSDPA RAB connections

Identify and mitigate pilot pollution, handover issues (IRAT, Soft, Softer),Swapped Sectors, Tx and Rx Feeder Cables

Check for DT equipment setup, perform basic DC analysis; execute drive testing for further troubleshooting as and when required

Carry out site surveys to identify RF equipment location and antenna orientation.

Perform Site Hardware Verifications; Site Audit

MTN, Ghana January 2004 - September 2007

Radio Frequency Planning and Optimization Engineer

Monitor and analyzes network daily statistics from OSS (R06B) and various Key Performance Indicators (KPI) such as drop call rate, Handover success rate, call set up success rate etc.

Order measurements on the OSS using, MTR, CTR, and using other applications like RNO, BUSINESS OBJECT, CNA, FOX, FAS, NOX, NETSCAPE for frequency optimization, neighbor optimization, handover success rate and any other radio parameter.

Diagnose all RF related problems such as interference, Drop call, HO failure, missing neighbors, omissions of BCCH channels in idle and active BA list, etc.

Run consistency check regularly to correct all inconsistencies in the BSS parameters.

Network dimensioning e.g. SDCCH, LAC, BSIC, HSN, DTX UL/DL, RAC etc.

HCS definition for all cells in the network.

Frequency plan for new sites based on FLP(Fractional Load Planning)

Preparation of Cell Design Data for new sites implementation.

Repeater Installation for areas with coverage gaps and important areas without coverage.

Perform drive tests using Ericsson’s TEMS Investigation tool for GSM and GPRS/EDGE. Analyze Drive tests log files using MapInfo and making fine-tuning by changing BSS parameters, antenna tilt, antenna reduction, azimuth, frequency, etc.

Design CDD in both Baseband Hopping and Synthesizer Freq. Hopping depending on Hopping method used in respective BSCs and also for MBC sites.

Analyze GPRS drive test to check parameters PDP, throughput, coding scheme, routing area updating, and making recommendations about the number of dedicated PDCH to be defined in the network.

Perform surveys for new sites of Base Transceiver Stations to identify RF equipment location and Antenna Orientation, Height, Down-tilt and Power reduction.

Network design in terms of BSC, MSC allocation during expansion.

Budget Preparation for the acquisition of Radio Equipment for Expansion work on the network.

Changing and Renewing Frequency Plan for cells in new or problematic areas based on FLP in some BSCs.

Tuning, optimizing and radio performance for the newly integrated sites.

Implementation of Multiband Cells feature (MBC).

Implementation of FLP (FRACTION LOAD PLANNING).

Optimization of the cells that have MBC and SFH implemented

Benchmarking of MTN network with other national operators.

Implementation of AMR (ADAPTIVE MULTI RATE).

Professional Training

Participant of ERICSSON USA BOOTCAMP for LTE TUNING which Highlighted;

Basic LTE Network Architecture

Alarm Troubleshooting

CEX,AMOS,MOSHELL,Parameter Changes

LTE OSS UETR_CTR

Parameter Audit_Nexplorer_OSS

Random Access and Retainability Tuning

Return Loss and VSWR Power Measurements

WCDMA Optimisation

GPRS EDGE Radio Network Dimensioning & Performance, (LZU 108 5202/1 R3A)

Ericsson Telecom AB

GSM OSS Radio Network Optimization, (LZU 108 5963 R1B)

Ericsson Telecom AB

E101 ASSET3g Tool User and E104 ILSA Tool User Workshop

Aircom International

Drive Test &Analysis Tool

TEMS Investigation Data Collection

TEMS Route Analysis and TEMS Discovery

Windcatcher

Actix Analyzer/ActixOne

MapInfo and MCOM Softwares

JDSU

NEMO

GEOPLAN

ATOLL

DATAPRO

Planning Tools

Asset, PlanetEV, Atoll, MapInfo Professional, MCOM

Optimization/Performance Analysis Tool

WINFIOL, BUSINESS OBJECTS, ENIQ,QUANTUM,NEPA, NEXPLORER, MAPINFO, MCOM,OSS, CITRIX,AMOS/MOSHELL, CACP, NEWTUN,IRISVIEW, NetAct

References

Available upon request



Contact this candidate