Lim Senheng

Experience

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  First ccambodia

  Jan 2016 - Dec 2016

  Technical Specialist

  • Maintenance the computer and network.• Assist with network and security management • Assist with data storage architecture and systems development • Assist with end user system update and monitoring. Including spyware removal and testing, virus checking, ensuring backup of data files, monitor printers, copiers, and fax machines to make sure they are working properly and getting regular maintenance.• Do spot check on data errors of bundling database• Data entry of Training on short term (STM) and long-term birth spacing method (LTM) into database and specifically by recognizing the initial and refresher training.• Remove duplicate data between existing database and new entry database Show less

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  Cellcard (CamGSM PLC.)

  Sept 2016 - Feb 2022

  • Expertise in LTE│LTE-A│VoLTE│3G│2G Optimization and Planning• Knowledgeable in 5G-NR• Expertise in ZTE EMS, NOKIA OSS NetAct, HUAWEI (U2020, mAOS , Nastar ) for KPI monitoring• Frequency/PSC/PCI/PRACH/Neighbors Planning• Manage GUL swap project from Nokia to Huawei (230 sites) and ALU to Huawei (60 sites). Ensure network stability and smooth workflow throughout the project by mapping pre- and post- parameters, KPIs, strategy and features, and by checking & accepting the SSV/cluster•Manage GUL swap project from ALU to NOKIA(1500 sites) . Ensure network stability and smooth workflow throughout the project by mapping pre- and post- parameters, KPIs, strategy and features, and by checking & accepting the SSV/cluster• E2E plan, design, and optimization for 2CC & 3CC deployment throughout the network and 450 sites 4CC activation in the central area through GSM TRX deduction study and frequency re-farming• Improve VoLTE capacity & quality by activating Semi-Persistent Scheduling (SPS), TTI Bundling, RLC Segmentation, RoHC, and eSRVCC• Providing Support to RF team for Network optimization activities and troubleshooting of fault & complete operation & maintenance of various sites.• Improved DL user throughput 10 % by PUCCH IRC optimization feature activation• Improved DL user throughput 2% and improved interference 25 By Power control Optimization threshold• DL Traffic increase 26% and UL user throughput increase 10% by 2ms TTI + Frequency equalization +HSUPA 16 optimization feature activation ( 1500 NOKIA )• L1800 Reframing by shutdown DCS1800 for upgraded L1800 from 10Mhz to 15 MHz on Huawei networkoptimizing• Skillful in TEMS Investigation, Dingli, and Actix Data Analysis.• Familiar with LTE Core Network Element and Functionalities.• Expertise in Atoll/Mapinfo for network optimization and planning• Working with Multi-Vendors Project (HUAWEI/NOKIA/ZTE)• Extensive background in STEM (Science, Technology, Engineering, and Mathematics) Show less

  • Senior Radio Engineer

    Jan 2021 - Feb 2022

  • Radio Engineer

    Sept 2016 - Feb 2022
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  Smart Axiata

  Mar 2022 - now

  Radio Network Planning & Optimization Engineer

  • Coordinates all technical activities dedicated to the network planning, network performance optimization and network extension, following the aim, to provide the best quality of the network performance in all aspects including interconnection with other operators• Coordinates the processes of network planning and optimization, including traffic measurementsfor all interfaces• Responsible for coordination and execution of technical policies and programs related to the support of uninterruptible service of the network with the best performance• Develops and uses special software tools for statistics analysis• Planning of network configurations, based on the results of the statistics analysis• Preparation of frequency plan• Planning of network expansions by preparing the Bill of Quantity for equipment purchases• Preparation of periodical network performance reports Show less