GERARDO ALFREDO ALARCON RIVAS

Saint Paul, MN ****4

Home 612-***-****,

Web https://www.linkedin.com/in/gerardoalfredoalarconrivas/ adg737@r.postjobfree.com

PROFESSIONAL SUMMARY

Proficient RF engineer with 11 years of experience in Wireless (RF) Technologies. Engineer with strong background in cellular technologies ranging from 2G to 4G (LTE, VoLTE, 5G NR, UMTS, HSDPA, HSPA+, GSM, CDMA, EVDO). International exposure with vendors like Ericsson, NSN, Samsung and Huawei. Enthusiastic of new technologies like Big data and Machine learning technologies. Experienced with all stages of the development cycle for internal projects. Well-versed in many programming languages including Java, JavaScript, and Python. Strong background in data manipulation.

SKILLS

· MS Office (reporting) and VBA EXCEL (Programming of Macros).

· Tools for performance and optimization analysis: Truecall (geolocalization data analysis), Iris (trace analysis), nGeniusONE (end to end analysis), optimization based on Cisco CSON tool (PCI optimization & ANR optimization) and utilization of FTT tool to automate capacity and coverage implementations.

· Tools for Post-processing: Accuver XCAP/XCAL, JDSU, Genex Assistant (3.3, 3.5), Tems Route Analysis, Tems Discovery Professional 4.0(Scripting, automatic reporting), SwissQual NQDI, VBA Macros and MapBasic for automatic statistics/Mapping/Plotting, Nemo Windcatcher and AEXIO XEUS.

· Planning and Design (Macro and in-building FemtoCells) using propagation tools like Atoll 3.1, Ibwave for design, Mentum Planet 5.7., Xwizard and AFP Ericsson.

· Tools for field testing: TEMS Investigation (8, 9,12 & 13), Tems Pocket, Anite Nemo outdoor, & GENEX Probe, NQDI & Quallipoc.

· Languages: C++ (Prior experience), Visual Basic (Prior experience), C# (Prior experience) and Java (Prior experience).

· Scripting: Python (Proficient), Java script (proficient), Unix Shell (proficient), VBA office (Proficient) and MapBasic (Proficient) & Git for version control.

· Data Visualization: D3, Tableau, PowerBI and Jupyter using Python libraries (Matplotlib and Seaborn). GIS analysis: MapInfo, Google Earth, ArcGIS and MongoDB Geo.

· Knowledge of 5G technologies (MIMO and 5G NR) from Ericsson/Nokia/Samsung vendor.

· Good understanding of Wireless Operator's end-end Network.

· Knowledge in LTE/UMTS-GSM/CDMA-EVDO Network Architecture.

· Data Analysis abilities to manage OSS (Ericsson, Nokia, Huawei and Samsung) data (CM/PM/CDR) from sources like XML, JSON and Unstructured data, using tools for data manipulation (Python & Alteryx), visualization and python scripting for parsing.

· Experienced with ML and RL algorithms using PyTorch and scikit-learn (Supervised and Unsupervised).

· Experienced with design and optimization of small cells (indoor and outdoor).

· Experienced with RAN CM/PM counters and KPI formulas to fill databases and reports. Macro site design considerations in urban, suburban, and rural environments (Huawei, Ericsson, Samsung and NSN).

· Strong RF design concepts including Model tuning, link budget, site placement / design, candidate reviews and deployment support.

· Experienced with NSN/Samsung/Ericsson/ Huawei/Airspan/Cisco OSS.

· Experienced with Small cell design/Optimization in urban and suburban environments.

· Working experience pre/post-commission activities. Experienced with Maintenance and Upgrades to Cell Site equipment, including integration and commissioning.

· Experienced using Siterra (Sprint) for regulatory Tasks and Site Tracker (Verizon).

· Familiar with processes to create RFDS / CIQ for new modifications and new sites. WORK HISTORY

ITG (Contractor for Sprint), Edina, MN

Rf Engineer, March 2018–March 2020.

· Created/Completed SCIP Approval, RFDS, NST, CIQ forms to support new and existing site designs and upgrades.

· Tested coverage problems and requirements for coverage and capacity cells.

· Worked in creating data pipelines in Alteryx for report creation and analytics.

· Developed Python scripts to automate data ingestion and OSS automation.

· Analyzed of propagation maps with tools like MapInfo and ATOLL for site candidate comparison, propagation and coverage review and selection.

· Perform post-commission, Commissioning, Integration, Maintenance and Upgrades to LTE cell site equipment.

· Developed scripts in VBA and Python to reduce the time and automate some tasks.

· Performed radio engineering evaluations for system planning and site acquisition.

· Reviewed cell sites and designs for upgrades/modifications.

· Created automation tools in Alteryx to optimize the integration between tools.

· Worked in preparing capacity report for the region.

· Reviewed performance of VoLTE to implement optimization changes.

· Tested performance of new sites.

· Optimized network based on top offender analysis, cluster evaluation (DT & KPIs analysis).

· Optimized VoLTE service after initial launch (MOS, Audio Gaps & Dropped connections).

· Performed optimization of multi-vendor environment (Nokia, Samsung & Airspan).

· Performed parameter audits and implementation of recent changes in the network (Nokia, Samsung & Airspan).

· Updated and managed Customer Information questionnaires (CIQ) for modifications or updates in the network.

· Performed frequency re-tuning for LTE and CDMA

Infotree, Inc, Portland (Contractor for Verizon), USA, Oregon Rf Engineer, November 2016 - May. 2017

· Analyzed coverage problems and new requirements for coverage and capacity cells.

· Created propagation maps with tools like MapInfo and ATOLL for site candidate comparison, propagation and coverage review.

· Reviewed site performance KPIs and design for upgrades/modifications.

· Designed Macro site in urban, sub-urban, and rural environments.

· Developed of scripts in VBA and Python to reduce the time and automate some tasks.

· Worked with Siterra and SiteTracker to create new projects and to audit information.

· Created search rings for the new projects of macro and small cells (outdoor and indoor) using tools like TrueCall, Atoll and broken sectors reports.

· Created site designs in RFDS and completed plumbing diagrams.

· Performed radio engineering evaluations for system planning and site acquisition.

· Reviewed cell sites and designs for upgrades/modifications.

· Worked in the design of CRAN clusters of Macro and Small Cells to increase capacity.

· Conducted RFE testing required reports and documents to ensure 100% compliance to RFE mitigation standards within the allotted time frame.

· Created automation tools in VBA to optimize the integration between tools.

· Worked in the capacity report for the region.

· Analyzed KPIs to investigate problems with network quality that can be solved with new sites or with site upgrades.

· Helped design team to interact with performance engineers to assess new upgrades on the network.

· Created RFDS and CIQ for integration/ commissioning Phase. Verveba Telecom, Mexico City, Mexico

Tool Developer, July 2016 - October 2016

· Identified, analyzed, and interpreted trends or patterns in large complex data sets (Mostly XML files of 1 GB from Ericsson OSS for PM and CM data).

· Located and defined new process improvement opportunities to reduce time on audits and performance analysis.

· Organized with management how to prioritize business and information needs.

· Developed and implemented databases, data collection systems, data analytics and other strategies that optimize statistical efficiency and quality.

· Coded scripts in python to update databases (MySQL), creations of reports (excel and Jupyter) and parsing of raw data (XML from network logs).

· Designed visualization dashboards in D3(dynamic dashboards), Tableau and Jupyter for managers.

· Adapted and changed standard techniques, procedures and criteria to solve complex problems. Designed and developed schema data models. Transformed project data requirements into project data models. Micronet, Mexico City, Mexico

Small Cells Optimization engineer, Feb 2016 - June 2016

· Perform site surveys to test the location and identify requirements for system design, including RF data collection and review of requirements.

· Review of cell sites and design for upgrades/modifications.

· Analyze design considerations and perform system design to eliminate coverage holes and to optimize capacity/coverage.

· Assess site design efficiency related to handover/handoff management and inter-technology handover/handoff.

· Work closely with Design Team defining customer design requirements and deliverables.

· Perform RF performance activities in customer projects independently, according to the project plan and in project managers' guidance.

· Analysis of neighbor relations and implementation of corrections.

· Customer problem investigation.

· Provide inputs for cost tracking.

· Integration/Commissioning of small cells (Cisco/SpiderCloud equipment). Link Consulting Services, Edina, MN

RF Engineer, September 2014 - December 2015

· Performed parameter audits, data fill parameters, conducted pre-post analysis, and prepared performance reports.

· Analyzed drive test data and proposed software and hardware recommendations to optimize and improve network performance.

· Looked for areas to improve LTE network performance and to meet network KPIs.

· Monitored network statistics, troubleshoot issue sites and resolved capacity issues.

· Performed RF & RAN optimization/performance activities according to project plan with project manager guidance.

· Performed LTE/LTE-A/CDMA/EVDO carrier turn up, multi-carrier optimization, PCI/PN planning & Neighbor list optimization.

· Experienced with data processing software WindCatcher.

· Identified and resolved data performance issues - e.g. outage, latency, throughput, failed connection attempts, and drop connections.

· Performed Parameter Audits and definition of inconsistency checks with Samsung equipment.

· Analyzed coverage holes with OSS, DT tools and Design Tools (Planet and Siterra).

· Automatized tasks with the creation of bash scripts, SQL, Python, VBA and MapInfo tools (Creation of scripts, audits, parameter compliance).

· Optimized of the clusters using planet with the ACP module.

· Performed meetings with the client in a market level to discuss problems related to the project (face-to-face meetings and videoconference).

· Analyzed new releases/features in network elements as eNodeB and core elements.

· Analyzed trace logs to find problems related to interfaces between MME, SGW and PDW.

· Performed test of new equipment in the network before the launch to commercial status.

· Created and updated of DB in MySQL to organize information from the OSS to generate reports based in KPIs and Parameter audits.

· Developed MapBasic scripts to generate reports and audits based in MapInfo info. Telefonica, Mexico City, Mexico

RF Planning and Optimization engineer, February 2014 - June 2014

· Analyzed site performance after integration using drive test measurements of tools like NQDI and Quallipoc.

· Optimized network following the criteria (98%) for the quality of service.

· Monitored network statistics, troubleshoot sites, and resolved capacity issues.

· Planned neighbor relationships using tools like atoll and Ericsson Xwizard.

· Created Scripts to put on air new sites, initial parameters, and neighbor relations for Ericsson/ Huawei equipment.

· Optimized sites with KPIs monitoring.

· Analyzed problems of Cross Feeders, Pilot Pollution, overshooting and other problems related to integrating new sites.

· Analyzed traffic statistics of the network for traffic balance of multi-carriers’ cells.

· Analyzed Connection performance measurement and cell performance measurement reports by RNC measurements for the client using Imanager M2000.

· Planned and created scripts for site re-homing to balance RNCs capacity.

· Planned and ran refarming of frequencies with AFP (Ericsson/Optimi) tool, audited RF parameters for mapping and comparison for problems.

· Created Load of license for nodes B.

· Upgraded firmware of nodes B.

· Audited Troubleshooting of accessibility and retainability.

· Configured new sites and added new equipment to the sites (boards, licenses and RF equipment), turned on, integrated and optimized new cellular sites.

· Looked areas to improve WCDMA/LTE network performance.

· Worked with Implementation and operational support teams to resolve any hardware/technical issues and implement changes.

· Implemented additional features, tuned radio network parameters, performed Multi-Layer (3 carriers using a network with three operators) management and multi-frequency networks. Dual carrier turned up for some sites, multi-carrier optimization, PSC and Frequency planning, Paging Group planning, Neighbor list optimizations.

· Planned LTE PCI/PN, Neighbor list and HO for IRAT areas.

· Optimized of multi-vendor HO areas (Huawei- Ericsson).

· Planned and designed of indoor smart cells for buildings and the HO with the macro sites.

· Performed Microwave path analysis for the planning of new sites and micro-cells (Unlimited spectrum). Networkers, Mexico City, Mexico

RF Optimization Engineer Contractor, February 2013 - January 2014

· Analyzed site performance after integration using drive test.

· Studied traffic and resource utilization figures and made suggestions for optimization.

· Planned neighbor relationships using tools like Forks Atoll and Huawei Unet (cloned version of Atoll by Huawei). Made Scripts to put on air new sites, initial parameters, and neighbor relations in M2000.

· Optimized delivery sites with KPIs monitoring.

· Worked with DT Partner Coordinator for walk test and drive test.

· Validated partner services from DT and CQT test for the client.

· Analyzed problems of Cross Feeders, Pilot Pollution, overshooting and other problems related to the aggregation of nodes/cells.

· Analyzed traffic statistics of the network for traffic Balance of multi-carriers.

· Analyzed Connection performance measurement and cell performance measurement reports by RNC measurements for the client using Huawei Nastar and Huawei M2000.

· Audited RF parameters for mapping and comparison for problems.

· Changed parameter for traffic balance with multi-carrier (three carriers) cells.

· Followed problems with traffic for the client.

· Monitored and analyzed post-launch critical KPIs retainability, accessibility, integrity, mobility, IRAT HO optimization, and new feature activation of new sites after the integration. Link Consulting, Chihuahua, Mexico

RF Optimization Engineer Contractor, September 2011 - January 2013

· Reported VIP areas looking at the quality of service and analyzed the events in the DT/CQT.

· Validated reports of integration of sites (SSV and cluster).

· Post-processed Drive Test logs and developed reports with tools like Tipp macro and home-made tools, TEMS investigation and TEMS discovery professional.

· Analyzed of Drive Test to search issues and critical zones with TEMS discovery, MapInfo 11 and TEMS investigation 13.

· Coordinated Drive Test teams for the client.

· Recommended changes to improve the service based on the Drive Test and KPI Monitoring tools. OSC, Quito, Ecuador

RF Engineer, February 2011 - May. 2011

· Planned rural sites in GSM.

· Performed coverage studies of neighbor’s sites.

· Performed optical test in the MW links to build the site.

· Performed Technical Site Surveys (TSS) of MW links on the remote sites and proposed the distribution of the new equipment and microwave for the new site.

· Proposed RF antenna orientation for the new site based with the RF study and the principal places of the town.

· Reported TSS, site acquisition for the new site based in requirement of civil works, RF studies and line of sight of the MW links.

· Experienced in preparing documents for the design of new GSM cell sites.

· Performed candidate information reports related to leasing and land using viability for new site. Used tools for measurements for the new site and for the TSS of the MW link. OSC, Piedras Negras, Coahuila, Mexico

Drive Tester, August 2010 - December 2010

· Drive testing activities.

Link Consulting, Chihuahua, Mexico

RNPI Jr, December 2008 - October 2009

· Analyzed the log-files/traces probe from network elements and probes.

· Perform Drive Test and Analysis using TEMS, TEMS Discovery and Actix Hands on experience with 2G/3G Drive testing and its logs analysis and field issues solving.

· Analyzed (in 2G/3G) interference, call drops, handover failures, RSRP Quality, RSRQ level, etc. EDUCATION

Georgia Tech, Atlanta Georgia, United States

Master of Science, Computer Science (Machine Learning Specialization), 2019-2022 Universidad Autónoma de Chihuahua, Chihuahua, México Bachelor of Science, Computer Science, May. 2008

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