Robert Y. Email & Phone Number

Richardson, Texas, United States

Redmond, Washington, United States

• Commissioned 5G small cell service node (eNodeB) and centralized unit (gNodeB) for AT&T Redmond WTC lab, Verizon West Lake lab, and FFA (First Field Application), encompassing mmWave and C-Band Corning in-building solution (IBS) solution.• Developed comprehensive TOL. Tested and presented results in customer GA calls. Conducted testing on PHY/MAC/RRC/PDCP layer, CAT-M/NBIoT modems, IoT interoperability testing with SecGW/MME/RAN of Ericsson and Nokia, including EMS (Element Management… Show more • Commissioned 5G small cell service node (eNodeB) and centralized unit (gNodeB) for AT&T Redmond WTC lab, Verizon West Lake lab, and FFA (First Field Application), encompassing mmWave and C-Band Corning in-building solution (IBS) solution.• Developed comprehensive TOL. Tested and presented results in customer GA calls. Conducted testing on PHY/MAC/RRC/PDCP layer, CAT-M/NBIoT modems, IoT interoperability testing with SecGW/MME/RAN of Ericsson and Nokia, including EMS (Element Management System).• Authored Method of Procedure (MOP), showcasing effective leadership in providing technical expertise and knowledge transfer.• Conducted diverse test activities involving debug log, Wireshark (PCAP), QXDM, and XCAL log analysis of Uu, S1AP, X2AP, ENDC, adhering to 3GPP standards. • Implemented vRAN based on Kubernetes.• Configured Ruckus switch for site network setup. Show less

Reston, Virginia, United States

• Contract with Orchestra Technology. • Successfully conducted timely testing of Casa and AirSpan LTE small cell eNodeB, focusing on aspects such as IPSec, software upgrades, throughput, mobility, VoLTE/SIP, and MOCN in Sprint and later T-Mobile Lab.• Proficiently utilized tools including OSS, network analyzers, spectrum analyzers, layer 2 and 3 trace, AeroFlex, and Prisma.

Stockholm Sweden And Piscataway Nj

• Tested and demonstrated the 5G mmWave (28 GHz) testbed prototype system, encompassing virtualized Radio Access Network (vRAN) and Baseband Unit (BBU) Hotel for Vzw lab.• Conducted troubleshooting and testing of the Intel 5G Mobile Test Platform (MTP) device. Activities involved restoring MTP, flashing Field Programmable Gate Arrays (FPGA), loading configuration scripts, and testing protocol conformance.• Installed, commissioned, and integrated the NSA ambulating demo system… Show more • Tested and demonstrated the 5G mmWave (28 GHz) testbed prototype system, encompassing virtualized Radio Access Network (vRAN) and Baseband Unit (BBU) Hotel for Vzw lab.• Conducted troubleshooting and testing of the Intel 5G Mobile Test Platform (MTP) device. Activities involved restoring MTP, flashing Field Programmable Gate Arrays (FPGA), loading configuration scripts, and testing protocol conformance.• Installed, commissioned, and integrated the NSA ambulating demo system, encompassing Active Antenna Unit (AAU), and New Radio (NR) in OPPO UE IoT Project. Tested latest Qualcomm and MediaTek modem.• Performed inter-operability testing with UE/chipset vendors in Ericsson and customer labs, developing test plans, customizing installation scripts, collecting and analyzing baseband logs, and locating end-to-end traffic issues (e.g., S1 link failure, carriers and cells disable, NR leg attach failure, low throughput, etc.)• Integrated an ambulating end-to-end (E2E) ecosystem, delivering Enterprise Core (EC) 2.0, switch, router, Juniper firewall, synchronization/GPS, and DC/AC power supply, with minimal remote support.• Led an agile team, supervising new engineers to test and tune RAN efficiently, surpassing the planned number of test cases, resulting in an unexpected sales contract duplication.• Verified test cases, including throughput, bandwidth, Multi-Input Multi-Output (MIMO) combinations, and band combinations (e.g., B3+n41, B1+n78, Hybrid Automatic Repeat reQuest retransmission - HARQ, etc.).• Verified Radio Frequency (RF) propagation model behaviors of different radio units and UEs.• Orchestrated the setup of an end-to-end trial system to support the first Ireland national 5G call for Vodafone.• Earned the customer's confidence in our Fixed Wireless Access (FWA) solution, playing a pivotal role in their decision to deploy thousands of 5G base stations within a short timeframe. Show less

Montreal Canada

• Tested and showcased Ericsson 4G TDD Massive MIMO 64T64R on the 2300 MHz Ericsson Radio System testbed for True Thailand.• Tested Ericsson LTE RAN NB-IoT trial products in the Ericsson Product Development Unit (PDU) lab.• Executed LTE NPI RAN projects with AT&T, T-Mobile, and Bell Mobility for feature testing and demonstration.• Conducted hands-on activities, including analyzing feature feasibility and limitations, creating feature and service deployment procedures, conducting… Show more • Tested and showcased Ericsson 4G TDD Massive MIMO 64T64R on the 2300 MHz Ericsson Radio System testbed for True Thailand.• Tested Ericsson LTE RAN NB-IoT trial products in the Ericsson Product Development Unit (PDU) lab.• Executed LTE NPI RAN projects with AT&T, T-Mobile, and Bell Mobility for feature testing and demonstration.• Conducted hands-on activities, including analyzing feature feasibility and limitations, creating feature and service deployment procedures, conducting drive tests. Show less

Stockholm Sweden And Montreal Canada

• Successfully resolved over 300 Customer Service Requests (CSRs), addressing critical issues for global customers.• Recovered more than 50 global and North American customer network outages. Authored Root Cause Analysis (RCA) reports and established pre-emptive support to anticipate dimensioning and capacity issues.• Achieved PLM (tier 3) certification in Kista, Sweden, showcasing advanced expertise and commitment.• Generated a class A business lead by successfully selling a… Show more • Successfully resolved over 300 Customer Service Requests (CSRs), addressing critical issues for global customers.• Recovered more than 50 global and North American customer network outages. Authored Root Cause Analysis (RCA) reports and established pre-emptive support to anticipate dimensioning and capacity issues.• Achieved PLM (tier 3) certification in Kista, Sweden, showcasing advanced expertise and commitment.• Generated a class A business lead by successfully selling a security management solution, securing a purchase order valued at $130,000 USD. This initiative significantly contributed to reducing customer Capital Expenditures (CAPEX) and Operating Expenses (OPEX). Show less

Pleasanton Ca, Seattle Wa, And Montreal Canada

Integrated and troubleshoot UMTS Terrestrial Radio Access Network (UTRAN) issues for Cingular and T-Mobile.

Beijing, China

Tested and demonstrated OSS, RNC and RBS in WCDMA trial project for China Mobile and China Unicom

Guangzhou, Guangdong, China

Commissioned, integrated, and upgraded MSC, HLR, BSC, RBS, MGW of GSM for China Mobile and China Unicom.