Engineer Customer Service

James Le

**** ***** **., ***** ****, Texas *****

Email: **********@*****.***

Phone: 469-***-****.

Professional Summary

●With more than 20 years’ experiences in the different technologies in commercial and military radar and cellular network infrastructures as network architecture, protocols, designing, planning and testing.

●Working experience in Network Architecture and protocols 2G, 3G and 4G, including device managements.

●Working experience in 3GPP/3GPP2/IEEE/CTIA/ITU architecture requirements.

●Hands on Network infrastructure with Nokia//Ericsson and Samsung VoLTE and e911 Mobility CSFB and SRVCC.

●Hands on Samsung LTE Home eNodeB Network infrastructure with Macro eNodeB of Ericsson and Nokia.

●Implemented and hands on experience FCC Type Approval requirements for 2G, 3G and 4G BTS.

●Working hands on Wireless Network Protocols IPSec, SIP, SDP, TCP, UDP, H323, Q931, G.711/729, H.261/263.

●Coding in C language with high level languages Window-CVI and LabView RS232, GPIB and Digital IO interfaces.

●Experienced with Antenna Interface Standard/AISG, Remote Tilt/RET and Common Public Radio Interface/CPRI.

●Knowledgeable with Python, mainly in debug level in Linux Red Hat OS.

●Experienced in RF diplexer and duplexer filters’ designing with and without low noise and high power amplifiers.

●Working hands on OAM/OSS NetAct Rel-8 Linux Red Hat OS Visual software and hardware of Nokia Flexi Architecture; including ALU/5620 SAM/SNMPv3

●Working hands on with equipment as Agilent, Spirent, Anritsu, Rohde & Schwarz TM500, CMU200/300, Network, Signal Analyzers and Generators, Fading Simulators, GPS Simulators and RF Scanner.

●Experienced in HW and SW debugging Boeing AWACS ESM Electronics System Measurements Receivers.

●In August of 2016, completed training of 200-125 CCNA Switching and Routing, Configurations, Static and Dynamic, IGB RIP, OSPF, EIGRP and EGB BGP and EGP. Exam is still in pending since no date is scheduled at Cisco. Cisco Packet Tracer/GNS3 and Lab equipment with Ethernet Interface.

Professional Experiences

Samsung Electronics America

1301 E. Lookout Road, Richardson, TX 75082

Sr. Radio Access Network Infrastructures and Protocols Engineer in Interoperability Testing

October, 2013 – April, 2016 30 months’ contract.

Manager: Richard Cheng +1-469-***-**** Email: ******@***.*******.***

●Implemented the test plan and test case requirements based on 3GPP and 3GPP2 LTE Network Architecture requirements of Macro eNodeB and Home eNodeB; Network Access Control, Packet Routing and Transfer, Mobility Management, Security, Radio Resource Management, Network Management and Device Management Functions

●Hands on integration CDMA and LTE infrastructure of Samsung Home eNodeB with Ericsson and Nokia/ALU.

●Hands on experience Mobility Management Network Interoperability with Samsung, Ericsson and Nokia/ALU.

●Hands on experience WiFi Offload Mobility Management with LTE network infrastructures of Samsung and Cisco.

●Hands on experience with HeNB, HeNB gateway, security gateway, HeNB management system and evolved packet core network elements.

●Expert in Radio Access Network infrastructure troubleshoot and debug with Samsung eFemtocell and rFemtocell.

●Hands on experience in Radio Resource Management, Network Access Control, Packet Routing and Transfer Functions like VoLTE, VoIP, PSTN, e911, MiMo 2x2 TCP and UDP UL/DL throughput, TTI bundling, Round Robin/Fair Scheduling, QoS Resource Type and Parameters of EPC Bearer and Service Data Flow, Load Balancing, Admission Control. Connection Mobility Control, Dynamic Resources Allocation UEs UL and DL, features like Carrier Aggregation Enhancements, Coordinated multipoint transmission and reception and Advanced MIMO schemes.

●Expert in QXDM, XCAL, Wireshark, Samsung and Nokia Python Scripts, tcpdump and LabWindow/CVI.

●Network Managements and protocols OAM/OSS Oracle OS Linux Red Hat commands and Diameters.

●Hands on experience eNodeB and Network protocols in PHY, MAC, RLC, RRC, PDCP and Cisco Layers 1 to 4.

●Hands on experience in device IOT with Network Infrastructures, Samsung, Nokia/ALU, Ericsson and Cisco.

Ericsson

1460 N. Glenville, Richardson, Texas 75081

Sr. Devices Interoperability Engineer in RF and Application Testing

April, 2013 – October, 2013 6 months’ contract.

Manager: David Goodson +1-972-***-**** Email: *****.*******@*********.***

●Working tool’s experience in XCAL, QXDM, QCAT, Wireshark, iPerf to analyze vendor’s devices Nokia, Samsung, LG, Qualcomm, ZTE, RIM, Foxconn and HTC.

●Hands on experience with CSFB between 2G/3G CDMA 2000, 1xRTT and LTE Networks Mobility Infrastructures.

●Working experience in Network Protocols’ Radius and Diameters with AAA and PGW/HSGW/MME/PCRF servers.

●Hands on experience Network Element troubleshoot and debug UMTS/GSM (GGSN and SGSN), CDMA (eHRPD, HSGW, AAA MIP HA/FA/PPP/PAP/CHAP), LTE (SGW, PGW ePDG, MME) and IMS (VoLTE/SIP/SDP).

●Working experience in Devices Interoperability Architecture of 3GPP/CTIA/3GPP2 requirements with Network Infrastructure’s CDMA Nortel and LTE Ericsson Network Elements like MSC, RNC, MME, SGW, PGW, IMS, HSS, AAA, HSGW, PDSN, PCRF, 2G CDMA BTS of Nortel and LTE eNB of Ericsson.

Nokia

6000 Connection Dr., Irving, Texas 75039

Sr. Radio Access Network Infrastructures Engineer in Integration and Verification

September, 1997 – March, 2013

Manager: Kenn Madsen +1-469-***-**** Email: ****.******@*****.***

●Hands on experience 2G, 3G and 4G Network Mobility infrastructures for Integration and Verification.

●Experienced in 3G and 4G RAN Network infrastructures for R&D Network Trial with AT&T, TMO and Sprint.

●Hands on experience LTE RAN Integration, Verification, Testing based on 3GPP Rel. 8, 9 and 10 Features, Carrier Aggregation Enhancements, Relay Nodes, Coordinated multipoint transmission and reception and Advanced MIMO.

●Experienced in LTE TDD planning, designing test cases, Integration, Verification and Testing in China.

●Implemented FCC Type Approval Conformance Testing requirements with 3G and 4G BTS.

●Experienced in Nokia OAM/OSS/NetAct Linux OS Servers and Flexi System Infrastructures.

●Expert in XCAL, QXDM, QCAT, Wireshark, Python scripts/debug; coding C with WindowCVI/LabView.

●Working experience in the implementation 2G, 3G and 4G test plans and test cases based on 3GPP/3GPP2/ITU/IEEE Architecture Requirements; using DOORS.

●3 years: Designed RF HW filter and passive components for 2G GSM Transmitter and Receiver modules.

●3 years: Developed Automation Tester for 2G, 3G and 4G BTS test cases; using high level language Window-CVI/C

BOEING Defense Corinth, Texas June, 1994 - September, 1997

ESM/Engineering Technical Specialist DoD Clearance’s required

Hands on experience AWACS/ESM products for NATO and US-AIR FORCE. Received Certificate of Achievements AWACS-Commendable Performance.

Experienced in C/Pascal coding; and in debug HW like matching filers in phase/ Sensor/Receivers/RF and IF converters, Digital I/O Signals, using RF equipment like Network, Vector and Spectrum Analyzer, Digital Meters, Digital Scopes and Logic Analyzers.

Siemens Automation Division Arlington, Texas November, 1988 - June, 1994

Customer Service Engineer

Hands on experience Currency, Mail and Package Automation Sorting Systems.

Experienced in System Integration, Calibration and Testing with Electro-Mechanical Sensors, Optical Imaging. Detectors and Servo Motors.

EDUCATION PERSONAL REFERENCES

University of Colorado, Denver

Degree: BS of Electrical Engineer

Attended: 1984 – 1988

Graduated: May, 1988

Status: US Citizen

URI: https://www.linkedin.com/in/james-le-bb2b9b44

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