RF Optimization & 5G Design Expert

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CURRICULUM VITAE

OMAR MARTINEZ CHAVEZ

Personal

Information

Civil state: Married

Nationality: Mexican

Age: 40 years old

Local Address: ***** ****** ***** **, ** 5102, Houston TX, 77075

Zip. 77075

E-mail: **********@*******.***

Mobile: 832-***-**** & +521**********

LinkedIn: omar-martinez-cahvez-84799357

Education

Titles

Bachelor’s degree in computer system engineering University: Tecnologico de Estudios Superiores de Coacalco

• Computer Systems Engineering

Lenguaje • English (Fluent)

• Spanish (Native Speaker)

EMPLOYMENT HISTORY

Summary – RF Engineer Optimization & Design

• Experience of more than 14 years as RF Optimization LTE/ VoLTE, UMTS and currently 5G, CBRS, DSS, C-Band and as well Design, 4G & 3G technologies

(Greenfield & Infill Design).

• Worked with AT&T Design Guidelines

• Experience in 5G, C-Band, CBRS, DSS, LTE, VoLTE, UMTS

• VoLTE/VoNR Optimization Ericsson TDD/FDD (Accessibility, Retainability, Mobility and Integrity for QCI 1&QCI 5 and improving the SRVCC Handover and issues) Identification of VoLTE issues like lack of dynamic QCI-1 activation, VoLTE required features not activated, SRVCC issues, Carrier Aggregation.

• Knowledge of Samsung, Ericsson, Huawei & Nokia tools for 5G, LTE & WCDMA.

• Drive Test analysis and inference skills with ACTIX, TEMS & X-Cal Solo

• Experience in Network Roll Out projects, Initial Tuning and Post Launch optimization, Related Task, including Search Ring Creation, Candidates Evaluation, Site Selection & Detailed Design.

• Experienced in Design Tool: Forsk Atoll (7 Years), Mentum Planet (2 Years), Arieso (2 Years), TrueCall & TEMS Investigation (3 Years)

• Scope of Work Definition/Clarification based on customer inputs (RFDS, Site Database, Site Survey Reports).

• ACP Setup, C-Band Design, DSS, CBRS & Optimization.

• Atoll experience – Setup Design and Configuration projects (create new sites & add carriers, sites Selection Physical and Logical configuration (Tilts [Electrical/ mechanical], Antenna type, heights, Baseline Parameters).

• I'm used to working hand in hand with the client at their offices

• Management and Lead for 4G & 3G and roll out projects. 2

EXPERIENCE RESUME

Lead, excellent communication and presentation skills - Excellent leadership skills – Rollout vendors coordination, drive and co-ordinate different teams of Drive test and Post-Processing in order to get KPIs of Cluster Acceptance and Network Acceptance – Good understanding of sales and budget administration – good relation with tools and equipment vendors – 5G,LTE and UMTS Radio Network functionality (Expert Level) – Experience with Samsung, Nokia, Ericsson and Huawei technologies – Network Planning experience - New Built Sites coordination – co-ordinate and support elaboration and review of Single Site Verification – Design and Optimization of InBuilding Sites and DAS with minirepeaters – COW proposes – Elaboration and administration of Cell sites Data bases – KPI Analysis to get the contractual target. APEX/NEXT Solutions, USA (HOUSTON, TX)

MAY 2025 – DECEMBER 2025

4G (LTE) RF OPTIMIZATION (VERIZON CTX MARKET's)

• LTE/5G Sites Performance the principal activities after to performed Swap equipment from Nokia to Samsung are ensuring network reliability, Analyze and adjust network parameters (power settings, antenna model, neighbors Relations, azimuths, alarms etc.) to maximize coverage, capacity and quality Service also doing Performance Analysis utilizes tools to monitor network performance, troubleshoot issues and Optimization the main KPIs [Mobility, Integrity, Retainability, Availability, VoLTE/VoNR, Load Balancing and throughput for 4G/5G, CBRS by utilizing Layer 3 Messages and tools such as True Call to minimize interference and maximize performance of the Network. TELEWORLD SOLUTIONS, USA (HOUSTON, TX)

JULY 2021 – FEBRUARY 2025

4G (LTE) RF OPTIMIZATION (VERIZON CGC & CTX MARKET's)

• LTE/5G Sites Performance the principal activities after to performed Swap equipment from Nokia to Samsung are ensuring network reliability, verify (PCI, power settings, antenna model, neighbors Relations, alarms etc.) also review and improve the main KPIs [Mobility, Integrity, Retainability, Availability, VoLTE/VoNR, Load Balancing, SIP_DC and throughput for 4G/5G Networks by utilizing Layer 3 Messages and tools such as True Call] also to provide optimizations proposals like physical and logical parameters in order to achieve the better performance to the Network.

• performing customer meetings to present progress of the sites assigned and try to get the sites acceptance from the costumer

• RF Field Engineer, perform ATP on-site tests, troubleshoot, analyze logs and provide recommendations for LTE, CBRS, DSS C-Band and DAS technology also configure the equipment (X-Cal SOLO) to perform tests and deliver reports with the data of the Site information, performance, latency, also Submitting E911: check the accuracy of Atoll prior to submitting and following up on TVW creation.

• DAS Testing Super Bowl XVL(NOLA) event, I performed DAS (Inbuilding Solution) field optimization testing (LTE, CBand and mmWave) in the main venues for the event, also worked in Inbuilding optimization to perform trouble shooting, check parameter for 4G and 5G for the DAS and to provide recommendations to work properly and meet the targets. 3

HUAWEI TECHNOLOGIES, MEXICO

JUNE 2020 – JUNE 2021

4G (LTE) RF OPTIMIZATION & DESIGN (TIGO GUATEMALA & DIGICEL GUYANA)

• Design & optimizing of 200 sites considering forecast traffic, predictions and simulations on UNET tool to achieve the KPI for Market Design Greenfield Sites LTE also performing customer meetings, manage requests or problems and present progress and results regarding of the Design & Cluster optimization

• As a cluster owner, the primary responsibility was to validate/improve KPIs in the cluster after launch sites, to provide recommendations (physical and logical parameters) to improve KPIs

• Verify and Develop the SSV (Single Site Verification) & SST (Single Site Test) in LTE technology also check Cross Feeder, Azimuth, Correct Coordinates, Scrambling Codes, PCI on the Drive Test

EXFO (PERU, TELEFONICA MOVISTAR)

OCTOBER 2019 – MAY 2020

4G (LTE) RF CONSULTANT (Movistar, Peru).

Worked on 3G, LTE & VoLTE technology for the Telefonica Peru customer. RF Consultant for EXFO, I performed the Optimization zones for the different cities of Peru (Lima, Arequipa, Trujillo & Piura) which consist improve KPIs in WCDMA, LTE, VoLTE Ericsson TDD (VoLTE Access Failure Rate, VoLTE Dropped Call Rate, RRC Connection Failure Rate, Average DL UE Throughput, LTE Mobility Execution Success Rate and SINR) LTE & VoLTE Traffic Balancing between Carriers to improve Network Quality using Idle Mode and Connected Mode Parameters, decrease CSFB delay, Carrier Aggregation, RF shaping for Over - shooters based on Drive test (Nemo Handy & TEMS) and TA stats analysis as well I gave Workshop, courses and recommendations to improve the KPIs.

NOKIA (JAPAN, RAKUTEN MOBILE)

FEBRUARY 2019 – JUNE 2019

4G (LTE) RF CONSULTANT (Rakuten, Japan).

Worked on LTE technology for the Rakuten Japan customer. RF Consultant for Nokia, I performed the design for the cities of Tokyo, Nagoya, Osaka

& Kyoto, which consists of verifying candidates for the design contemplated by Nokia LTE and 5G equipment, verify type of antenna, perform site survey, perform the Atoll project setting as well as predictions to verify coverage, have meetings with the client and explain the specific cases of the design as well as the progress of the design, perform the deployment according to the assigned cluster which contemplates the ignition of the site, Design Polygons Creations and Validations for measuring KPIs. Special Events Designs for Hotels, Concerts, Malls including: (indoor/outdoor) Multibeam antennas, Split Sectors also develop the Roll Out and VoLTE Optimization Accessibility, Retainability, Mobility (RRC Setup success rate, ERAB Setup Success rate, IRAT Handover success rate, DL & UL Throughput measurement & Drop calls) and Integrity for QCI 1&QCI 5 and improving the SRVCC Handover and issues) speech and voice quality analysis Including troubleshooting through the Layer 3. Traffic Balancing between Carriers to improve Network Quality using Idle Mode and Connected Mode Parameters, RF shaping for Over - shooters based on Drive test and TA stats analysis. The design of the 5G network continues to be done which leads to perform the Link Budget, verify the mMIMO (Configuration), the DL Margin and Parameters, as well some KPI targets values like SS-RSRP,QOS target, Reference signal / PDSCH SINR target, GOS target, etc

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NAE S.A. DE C.V.

JULY 2017 – JANUARY 2019

4G (LTE) & 3G (WCDMA) RF CONSULTANT.

Worked on LTE and WCDMA technology for the AT&T Mexico customer. RF Consultant for AT&T Network Experience Area, the main responsibilities where customer meeting perform Executive & Analysis Reports how sponsor events, concerts, Subway coverage, etc. also give recommendations for improve KPIs and solve problems of the AT&T Network with Ericsson Equipment (Delay, Latency, Packet Loss, LTE Return, Drop Calls, Mobility, Availability. Responsible for improving LTE / VoLTE KPIs like Accessibility, Retainability, Mobility (RRC Setup success rate, ERAB Setup Success rate, IRAT Handover success rate, DL & UL Throughput measurement & Drop calls) and improving the SRVCC Handover and issues), Mobility analysis Identification of VoLTE issues Including troubleshooting through the Layer 3 for the LTE & WCDMA technologies to found problems on the AT&T Mexico Network. ERICSSON TELECOM, S.A. DE C.V.

JULY 2011 – MAY 2017

4G (LTE) RF OPTIMIZATION (October 2016 - May 2017) Cluster Owner LTE for (Sao Paulo, Brazil Market), customer VIVO

• Responsible of Rollout team Customer meeting, handling request or issues, resource Planning, management and distribution of assignment for the LTE & WCDMA sites

(1st & 2nd Carrier) In the bands ( 2100 & 1800 MHz) Verify alarms, setting power, Cross Feeder, Azimuth, Correct Coordinates, Scrambling Codes & PCI also I work to tuning the worst cells for improve de KPIs (Retainability, Availability, Mobility, Integrity, etc) according with the Scope of the customer. Professional

Experience

RF OPTIMIZATION(LTE) (September 2015 - October 2016) Develop the PRE-SSV and Optimization for the following technologies (LTE & WCDMA) for the SWAP in the markets of Tijuana, Mexicali, Tecate, La Paz, Los Cabos, Hermosillo & Ciudad Juarez for the AT&T Mexico.

• As cluster owner, my main responsibility was to validate/improve the KPIs in the cluster after swapped, provide recommendations (Physigcal & logical parameters) for improve the KPIs

• Verify and Develop the PRE-SSV in these technologies LTE, WCDMA & GSM also check Cross Feeder, Azimuth, Correct Coordinates, Scramblig Codes, PCI & BCCH on the Drive Test with the TEMS Discovery tool and supporting the Window SWAP how verify the logs of the Drive Test and talk with the Testers about of the routes, issues or problems found in the drive test.

• The scope of work is for Optimization and Planning-Design with equipment Huawei and Ericsson in LTE, 3G and 2G Technologies RNDCIQ LTE / WCDMA PROJECT. (Nov 2012 - Oct 2013)

Worked development RNDCIQ on LTE / WCDMA for Markets of USA, Central

(Sn. Antonio, Houston, Austin) & South-east (North Florida / South Florida) for the customer AT&T

Customer meeting, handling request or issues, resource Planning, distribution of assignment, Analyzing and verifying customer inputs (RFDS, checklist).

Performing RNDCIQ and provide configurations of equipment to WCDMA & LTE

(1C, 2C & 3C) Technology for different Region assigned to AT&T customer.

Performing of RNDCIQ (input used to create scripts in order to a site can be integrated, scripts to load it into OSS and also serves as an input for Transport Network Design (TND); It contains most of the RF parameters, neighbors, physical site information, etc.), is required for all new site and carrier add, rehomes, cabinet swaps, etc. and used as a basis for optimization. 5

Professional

Experience

4G (LTE) RF PLANNING & DESIGN.

Worked on LTE for Market of USA (South, North Texas Carolina) for the customer AT&T

Design & Optimizing ICD & LTCD of 250 sites considering forecast traffic, predictions and simulations Monte Carlo from Atoll to achieve the KPI for Market for Market, RSRP(-113), RSRQ (-15 dB at 50% Load and -18 dB at 100% Load), SINR (DL)(5 dB, 10dB & 20dB), 2, 4 & 7 Server as improved the Throughput DL., The optimize and Design is in base of the Guide Lines of AT&T ND-369.

Spillage Analysis, Proposed the better antenna type and propagation model

Perform Cluster Certificates for the 250 sites of the Design

Perform the presentation of the ICD (Initial Cluster Design) for Delivering of Customer

4G (LTE) RF PLANNING & DESIGN. (May 2012 - August 2012) Worked on LTE Network for the customer GCI_Fairbanks, Alaska

Greenfield Design & Optimizing of 90 sites considering forecast traffic, predictions and simulations Monte Carlo from Atoll to achieve the KPI for Market, RSRP the target was 90% of the final Area, RSRQ, SINR (DL), 2, 4 & 7 Server as improved the Throughput DL.

Atoll ACP Setup & Optimization.

Propose the better antenna type and propagation model, PCI Planning

Perform the final presentation of the Design for Delivering of Customer. 4G (WCDMA) RF PLANNING & DESIGN TEAM LEADER. (July 2011 – May 2012) Worked on UMTS Network of South Texas Market for AT&T

Team leader of 10 Engineers Design and Optimizing 4th and 5th carriers of the UMTS considering forecasts traffic, predictions and simulations from Atoll to achieve the KPI for Market, handover, pilot pollution, EC/IO and RSCP According to the guidelines of AT&T (ND-0311).

Design and Optimizing 3rd and 4th carriers of the UMTS considering forecasts traffic, predictions and simulations from Atoll to achieve the KPI for Market, handover, pilot pollution, EC/IO and RSCP, the Design is in base to Guidelines of AT&T (ND-311).

Neighbors Relationship PCI Planning; Generation of INTRA, INTER and IRAT relationship for the 674 Design and Full Design Sites involved in the project. All the relation were generated according to their corresponding Layer Management, On Air Sites restrictions and customer concerns. NOKIA SIEMENS DELIVERY

APRIL 2010 – JULY 2011 D.F. Mexico

2G RF PLANNING & OPTIMIZATION.

2G Planning Engineering for add new sites like allocation of frequencies for more capacity.

Changes of frequencies to improve the performance of the Network, to realize Retunes of the different markets to improve the quality and capacity.

Validation of new sites like the optimum height types and change of antennas.

Delivering monthly reports to legal area about radio electric spectrum assigned to Nextel Mexico.

Optimization of 2G KPI Network (Blocking, SQE, RSSI, Dropped Calls, Indoor Coverage, RF Utilization) programming monitoring of Radio Bases, accomplishment of Drive Test Post Process (

Perform Drive Test (Process & Post- Process), Site Audit & Site Survey

RF Design for coverage in new markets and improve coverage with new sites in current markets.

6

Planning and execution to improve the cover in events sponsored by Nextel. TECHNICAL TRAINING

• LTE Radio Network Design Overview. (November 2015)

• LTE Performance Management & Optimization overview. (January 2016)

• Coverage and Capacity in LTE. (June 2016)

• 5G Nominal Radio Planning Analysis overview (APRIL 2019)

Seminar 5G NR: Standards, Fundamentals, Procedures and Tests & amp; Measurement (September 2019)

Software & Tools

MAPINFO, UNIX, Samsung Tools (USM, XLP, Samsung Optimus & NMT), X Cal SOLO, TrueCall, Python, SQL

Moshell, Amos / Ericsson Network Manager / OSS Common Explorer

U2020/ Genex Probe / Assistant/ mAOS/ GENEX Assistan, USM, XLPT

Software to perform Drive Test: NITRO, ACTIX Analyzer, INVEX, WindCatcher; TEMS Investigation, TEMS Discovery, GENEX Assistant, X-Cal Solo

Atoll, UNET, xWizard, CellOpt, Mentum Planet, Anritsu, ACP, ITK, SMART & Arieso.

Verizon Tools: USM, XLPT, Conquest for the RF portion of the CQ, Fuze Planning/Canvas, and Fuze Reporting.

SKILLS

Excellent leadership, communication and presentation skills

Experience on design, planning, optimization and handling network improvement on Radio networks

Strong verbal and written communication skill and the ability to work in a team environment

Good knowledge of RAN Design and Optimization

Leader and manage of teams.

Focus to attend costumers.

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