Helen Zeng's Email Addresses & Phone Numbers

Senior Network Consultant, GSM/UMTS Optimization @ Cerion Inc. GSM/UMTS Network OptimizationLead in Kansas and Missouri UMTS network optimization (ALU RNC)* Capacity analysis and optimization on ALU 5200 and 9370 RNCs, TMU and RAB; based on traffic input.* NodeB rehome plan, ATM link analysis, PG load balancing. * Utilize Oracle PL/SQL, Perl to process data. Familiar with AT&T’s...

Senior Network Consultant, GSM/UMTS Optimization @ Cerion Inc. GSM/UMTS Network OptimizationLead in Kansas and Missouri UMTS network optimization (ALU RNC)* Capacity analysis and optimization on ALU 5200 and 9370 RNCs, TMU and RAB; based on traffic input.* NodeB rehome plan, ATM link analysis, PG load balancing. * Utilize Oracle PL/SQL, Perl to process data. Familiar with AT&T’s Prospect , NDRPRO database.Lead in India New Delhi GSM network optimization trial (Ericsson BSC)* Optimal border plan for BSCs with consideration of BSC capacity and handover. * Capacity analysis. Busy hour traffic analysis.* Network KPI, QoS/GoS improvement.Texas HLR service (Ericsson RNC, Ericsson 2G/3G SGSN, Nortel 3G MSC)* HLR CPU, SS7 signaling load analysis, along with inter system LUs/RAUs/IRATs between 2G-3G, 3G-3G MSC/SGSN.* Shelf level load balancing on Ericsson RNC.Indonesia Telkomsel network optimization trial (NSN RNC and BSC)* Limited experience on Nokia-Siemens RNC and BSC. From March 2009 to June 2010 (1 year 4 months) Dallas/Fort Worth AreaSenior Member of Scientific Staff, CDMA/IS41/Internet/UMTS @ Nortel Networks Senior system engineer （for 2 years):AWG (AT&T Wireless Group) network engineering for GSM/GPRS and TDMA markets;Wireless Internet 3G UMTS network architecture and planning. Business and network consulting. Internet Data Center design, VoIP network architecture. Senior software developer, CDMA Packet MSC (for 9+ years):Participated in the high level design, detailed design, documentation, coding and testing for CDMA packet MSC software. Debugged software when needed. Activities included general call processing, handoff, vertical features, maintenance, OAM, various IS41, SS7 related projects. Team leadership since 2005, in multiple projects.Expertise in: * Authored customer visible project functional specification.* Packet MSC OAM.* Paging, SMS Border Cell Paging.* Capacity prediction. Call unblocking.* TrFO (Transcoder Free Operation).* H.248, 3GPP/2, IS41, SS7. From August 1997 to January 2009 (11 years 6 months) Dallas/Fort Worth AreaPrincipal Data Scientist & Big Data Engineer @ AT&T CDO, Labs & CTO Feb 2019, joined AT&T CDO (Chief Data Office), in Palo Alto. Worked as Principal Big Data Engineer. Led Machine Learning effort and developed models by utilizing Geo located RAN data (iQI), skilled in processing/computing on billions of real-time records using data lake platform. Software implementation for data pipeline (metrics to measures), 5G data analysis etc. Jul 2016-Jan 2019, in AT&T Labs and CTO (Chief Technology Office), in San Ramon, worked as Principal Data Scientist. I specialized in Radio Access Architecture and Analytics. Brought RF domain knowledge accumulated in previous jobs, applied Data Science skills to solve RF related problems, contributed software skills to help fit algorithms into AT&T ECOMP/ONAP architecture.Involved in:. RAN big data analytics (macro, small cell, IoT, drones, etc.) . RF lab testing . 5G . SON . SD RAN/NFV . Vendor solution/RFP evaluation Data Science skills on top of the RF skills:-- Machine Learning/Artificial Intelligence-- Hadoop MapReduce, Spark-- Perl, Python, Matlab, statistics with R-- AWS cloud computing-- Database: Vertica, Hive-- Git, Maven, IntelliJMajor achievements:-- Had 1 patent granted and 3 patents pending, in small cell, machine learning, anomaly detection, and 5G & edge computing areas. -- Received VP selection of 'Big Win' 2 times, for my Machine Learning work. -- Developed the 1st successful RAN use case of Machine Learning micro-service on Docker using Acumos platform. -- My Machine Learning model went to production and was applied on more than 20 markets to solve real problems, and expanding to nation wide. From July 2016 to February 2020 (3 years 8 months) Palo Alto, CaliforniaRF Engineering Technical Lead, LTE/Wi-Fi/IoT/Smart Grid/5G @ Ericsson Ericsson key contributor award recipient (for Ericsson's highest performing employees).07/2010-04/2011 contractor with Fusion Solutions.04/2011-06/2016 full time employee.My most proud accomplishments:-- Had proven record of helping Ericsson bring new business or win the bid. •Had significant contribution in Ericsson winning Turkcell LTE nationwide project in 2015. Led team to do RF design, presented in customer-bidder technical debate meeting, had multi-day customer workshop, to show Ericsson RF design strategy and technical details. •Lead engineer in Motorola RICS public safety RF design preSales. Presented to customer, our design impressed the customer, we won the deal finally.-- Technical lead of AT&T RF design national team. Led RF design tool modeling, technical discussions, innovation.Expertise:-- Capacity, coverage, link budget analysis.-- HetNet (Macro, Small Cell, Wi-Fi, In-building) design. -- Wrote paper on 'Wi-Fi offload LTE comprehensive strategy'. Developed modeling of outdoor Wi-Fi performance and capacity. Advised Ericsson EDOS team on Wi-Fi modeling implementation.-- Expert in Atoll. Ericsson point of contact for Atoll. Mentor other RF design engineers.-- Led technical innovation, new methods of modeling, such as, eMBMS, beamforming, carrier-aggregation. Led technical discussion internally and with external 3rd party tool providers.-- Done lots of PreSales support projects. Worked with solution or sales managers, CTO office to come up with consulting service proposals.-- Had experience on leading/advising international projects, i.e. Turkey, Mexico. Led LTE RF design preSales. -- Lead engineer in Ericsson IoT/Smart Grid network design. Played key role in several Smart Grid network design projects since 2014, familiar with EDX.-- 5G propagation model exploration.IBS design, did 2 complete IBS design projects.UMTS RF design.UMTS post launch optimization for Chicago market. From July 2010 to June 2016 (6 years) Dallas/Fort Worth Area(Senior Manager) Staff Consulting Solutions Architect-Telco and Edge Cloud @ VMware Directly engage with Teleco/Service Providers in technical preSales activities.Act as a business unit technical SME on VMware Intelligent Operations & Service Delivery products and technologies.Solution areas include: LTE, 5G, O-Ran, ML/AI, NFV/CNF.- Proof of Concept activities to support preSales. Build and deploy Kubernetes clusters for LTE/5G applications as SaaS offering.- Cross-product collaboration to strengthen the platform’s capabilities. Platform evolution. Working with multiple product teams within VMWare and Dell.- Product integration to support Telco Cloud Automation, Operation, to be aligned with VMWare overall IaaS, CaaS, SaaS, PaaS strategy. - Innovation activities related to 5G, ML. - RFx response for '5G Data Analytics' topics. Worked with various product teams within VMWare and Dell to deliver comprehensive solution package. Gave customer presentation.- Submitted one patent disclosure in the area of LTE/5G Data analytics in Sep.- Published a paper in SCTE'20 Cable-tec Expo: "Employing neural networks for improved root cause analysis in service provider clouds".- Obtained 'Certified Kubernetes Administrator' in Aug.- Received one Spotlight Award in Apr. Palo Alto, California