RF Optimization Consultant

Koichi Ariyama

******.***@*****.*** • M: +51-977-***-*** • Lima, Peru

http://do.linkedin.com/pub/koichi-ariyama/3b/4a9/364/

4G/LTE MOBILE NETWORKS EXPERT AND TELECOMMUNICATIONS PROFESSIONAL

I am a proactive person and results oriented professional. Self-motivated and ambitious individual with the commitment and flexibility to work in a changing environment, able to cope with the unexpected with the ability to improvise and recognize the needs for change. Telecommunications Engineer with more than 8 years experience in LTE Mobile Networks, worked on the initial tuning and post launch optimization of the first LTE Deployment in America as an RF Engineer. Being part of some managerial positions in the past leading teams that consist of people with different backgrounds has created interpersonal skills that are essential to the attainment of both team and personal goals.

PROFESSIONAL EXPERIENCE

HUAWEI PERU (ENTEL PERU GUL Project) • Full Time • May 2017 – Present

LTE/3G/2G Senior RF Optimization Consultant – Regional Team Leader

South Lima and Central Peru Regional Team Leader in charge of GUL (GSM, UMTS, LTE) KPIs optimization.

Weekly Capacity Assessment review and analysis: Network Capacity.

High Level Optimization Report generation and delivery to customer.

LTE User Throughput KPI Optimization.

CSFB Procedure Optimization.

VoLTE Cases Analysis and Troubleshooting.

LTE MLB (Inter-Frequency Load balance between AWS/APT 700) implementation.

TDD Massive MIMO Clusters Optimization (Ongoing).

Carrier Aggregation Feature Trial implementation support

Mass Event optimization proposals.

NB-IoT Feature Trial development (Ongoing)

ENTEL PERU • Full Time • July 2016 – May 2017

LTE/3G/2G RF Optimization Consultant – Regional Team Leader

South Lima and South Peru Regional Team Leader in charge of GUL (GSM, UMTS, LTE) KPIs optimization.

Responsible for all the Optimization task related to the region assigned.

VIP cases analysis (VIP Customers Complains).

Weekly Capacity Assessment review and analysis: Network Capacity Optimization

Responsible for network elements monitoring, analysis, fine tuning, optimization and troubleshooting, make decisions on how to improve network performance.

Guarantee a successful RNO service delivery.

Network parameters audit and new configuration recommendations proposal.

GUL Top Offender Analysis Report delivery to customer.

High level troubleshooting for LTE/3G/2G networks.

GUL Coverage Optimization.

Mass Event optimization proposals.

Interact with customer in order to satisfy all of their needs in order to improve the optimization process.

Special dates network quality assurance projects (Christmas, holidays, summer, holy week, etc…)

New site planning and optimization.

Small Cell Optimization.

LTE 700 Network Optimization and Interworking assurance with AWS.

GUL Features analysis and KPI monitoring after implementation.

Miscellaneous Task related to Entel Optimization Department.

HUAWEI PERU (ENTEL PERU GUL Project) • Full Time • July 2015 – July 2016

LTE/3G/2G RF Optimization Consultant – Regional Team Leader

South Lima and South Peru Regional Team Leader in charge of GUL (GSM, UMTS, LTE) KPIs optimization.

Responsible for all the Optimization task related to the region assigned.

Task distribution to my team mates in order to deliver on time quality results.

Responsible for network elements monitoring, analysis, fine tuning, optimization and troubleshooting, make decisions on how to improve network performance.

Guarantee a successful RNO service delivery.

Network parameters audit and new configuration recommendations proposal.

GUL Top Offender Analysis Report delivery to customer.

High level troubleshooting for LTE/3G/2G networks.

GUL Coverage Analysis and Recommendations Report delivery to customer.

Mass Event optimization.

Interact with customer in order to satisfy all of their needs in order to optimize and improve their network.

ORANGE DOMINICANA • Full Time • November 2012 – July 2015

RF Optimization Engineer and Deputy Manager - 2G/3G UMTS-CDMA-EV-DO/4G LTE

Assists my supervisor in the leading of the team

Coordinate and supervise all the task developed by our contractors and vendors

Coordinate the deployment of the network in terms of integration parameters and radio configuration

ORANGE DOMINICANA • Full Time • November 2011 – July 2015

RF Optimization Engineer - 2G/3G UMTS-CDMA-EV-DO/4G LTE

Santo Domingo Capital city RAN Optimization Manager.

Perform root-cause analysis of RF issues to meet target KPIs.

Customer’s problems investigation.

Troubleshoot system problems such as Pilot pollution, Drop Calls, Dropped Connections, Handover Failures and Interference Issues.

Apply engineering principles to design and optimize network coverage, performance, and capacity

Perform traffic load balancing between carriers/technologies.

Serve as a technical subject matter expert and may be required to do in depth analysis of new features and technologies.

New Features Test in laboratory/live network and implementation.

Compile results and write required engineering reports, test plans and procedures for new Feature, Software Fix and Interoperability testing.

Small-Cell and DAS deployments optimization.

Mass events dimensioning /parameters optimization.

Huawei RAN13 Implementation Project Manager (2012).

Huawei RAN15 Implementation Project Manager (2014).

UMTS Multicarrier Optimization Strategies definition (4 carriers basis).

UMTS Enhanced Fast Dormancy Feature Implementation Engineer (2014).

Network Capacity Dimensioning and Optimization.

America’s first LTE Network deployment RAN initial tuning and optimization (2012).

LTE SON Features Test/Implementation: ANR, MRO, ICIC, PCI Collision Detection (2013).

LTE RAN Sharing Implementation Project Manager and RAN part Implementation Engineer: Merge Orange and Tricom LTE network (2014-2015).

LTE CSFB Implementation Engineer: Allow voice calls on LTE through 3G network (2013).

Perform parameter audits, data fill parameters, conduct, pre-post analysis, and prepare performance reports.

DNDC (National Direction of Drugs Control) • Part Time • October 2011 – July 2013

Sub-Assistant Supervisor (2nd in Charge) of the Drug Cases Analysis Unit

Coordinate intelligence strategies for drug dealing cases

Documentation of all the activities of the department

Assign task to the operational team of the department related to intelligence work

DNCD (National Direction of Drugs Control) • Full Time • October 2009 – October 2010

Sub-Assistant Supervisor (2nd in Charge) of the Denunciation Department / IT Department Supervisor

Manage all the projects related to IT

Direct support to DNCD Director in special assignments

Follow Up of all drugs related denouncement received at the department

Manage the personal of the department

Supervise servers maintenance

ORANGE DOMINICANA • Full Time • August 2009 – October 2009

Benchmarking of GSM Networks in the Dominican Republic

National Telecommunications Benchmark between all the mobile service providers: measure the quality of voice services of all the Mobile Service Providers in Dominican Republic (Codetel, Centenial, Orange)

Drive test around the country (Dominican Republic)

Data post-processing (TEMS)

Results analysis

MENU.COM.DO • Full Time • September 2008 – May 2009

Publicity Salesman

Sales all the website services to all restaurants around the country

Update the website's database

Visit all the customers to measure their satisfaction with the services provided

EDUCATION

Master of Information Technology and Mobile Network Communication “4G Mobile Networks Expert”

BASQUE COUNTRY UNIVERSITY (ETSI-BILBAO) • Spain • 2010 -2011

Maryland International Telecommunications Exchange Program

MARYLAND UNIVERSITY • United States • 2009

Electronic and Telecommunications Engineer

INTEC (INSTITUTO TECNOLÓGICO DE SANTO DOMINGO) • Dominican Republic • 2005 - 2009 • Member of PIES (INTEC Outstanding Students Program) “National Promising Young Student 2005 Award” • Vice-President of CIEC (Communications and Electronic Engineer Committee)

JICA Training Program for Students of Japanese Language

NEGISHI JICA CENTER • Kanagawa, Japan • 2002

PROJECTS

Initial Tuning and Optimization of Latin America first LTE Commercial Deployment • Role: RF Optimization Engineer • Company: Orange Dominicana 2012 • Duration: 3 Months

LTE SON Features Implementation Project (ANR, MRO, ICIC, PCI Collision Detection) • Role: Optimization Engineer • Company: Orange Dominicana 2013 • Duration: 3 Months

RAN13 Implementation Project • Role: Project Manager • Company: Orange Dominicana 2012 • Duration: 5 Months

LTE-3G PS Handover Implementation Project • Role: Project Manager • Company: Orange Dominicana 2013 • Duration: 3 Months

LTE-3G CSFB Implementation Project • Role: Project Manager • Company: Orange Dominicana 2013 • Duration: 4 Month

RAN15 Implementation Project • Role: Consultant • Company: Orange Dominicana 2014 • Duration: 5 Months

GWCN Implementation Project (LTE RAN Sharing Orange/Tricom)• Role: RAN Architecture Designer and implementation Engineer • Company: Orange Dominicana 2014 • Duration: 3 Months

20 MHz Allocation to Orange LTE Network• Role: RAN Architecture Designer and implementation Engineer • Company: Orange Dominicana 2014 • Duration: 3 Months

COURSES

EPS Mobile Communications Systems Fundamentals (LTE/SAE) ( ETSI – Bilbao, Spain 2010)

Seminar on Antenna Design (ETSI – Bilbao, Spain 2010)

Journey Hands on Wireless & Mobile (TECNALIA – Bilbao, Spain 2010)

Compact Antennas for Mobile Communications and Mobile Networks ( ETSI – Bilbao, Spain 2010)

Digital Communications in Mobile Wireless Networks ( ETSI – Bilbao, Spain 2010)

Radio Coverage Measurements ( ETSI – Bilbao, Spain 2010)

Mobile Internet ( ETSI – Bilbao, Spain 2010)

Mobile Networks Planning and Dimensioning ( ETSI – Bilbao, Spain 2010)

Radio over Fiber ( ETSI – Bilbao, Spain 2011)

Optical Networks Communications ( ETSI – Bilbao, Spain 2011)

Communications Theory in Mobile Networks ( ETSI – Bilbao, Spain 2010)

Advanced Security Issues in On Demand Resource Provisioning and Cloud Computing (ETSI – Bilbao, Spain 2011)

Electromagnetic Fields and Radiation: Interaction with Humans (ETSI – Bilbao, Spain 2011)

Advanced Frequency Error Correction and Digital Modulation Techniques, Principles and Implementation Issues (ETSI – Bilbao, Spain 2011)

AIRCOM International – ASSET GSM/GPRS Tool (Orange Dominicana 2012)

AIRCOM International – ASSET LTE/LTE-A Tool (Orange Dominicana 2013)

AIRCOM International – Advanced LTE Optimization Training (Orange Dominicana 2013)

Huawei - UMTS/LTE Troubleshooting with iM2000 (Orange Dominicana 2013)

Huawei – Advanced RF Optimization Training for LTE U2000 (Orange Dominicana 2015)

RESEARCH PROJECTS

Performance Study of LTE Handover Procedure (ETSI-Bilbao, Spain 2010 - 2011)

SKILLS

Vast acknowledgement of the following programming languages and telecommunications software:

Huawei FMA

Huawei ASP

Huawei U2000/PRS

Huawei CME

Huawei GIS

Huawei NASTAR

Astellia Systems

E// CNA (Cell Net Admin)

E// Radio Optimization Tool

E// PMR

Assistant

Probe

Matlab

OptiSystem

OPNET

Asset (AIRCOM)

E// OPS

Netimizer DMA

Radio Mobile

MS Project

Mapinfo

Actix

V3D Equal One

WindCatcher

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