ตำแหน่ง RF Engineer

บริษัท บริษทั อินเวนเทคจํากัด

ที่อยู่บริษัท 211/263 หมู่ที่2 ตําบลแม่เหียะ อําเภอเมือง จังหวัดเชียงใหม่ 50100

เงินเดือน สำหรับสมาชิกเท่านั้น

ลักษณะงานที่ทำ
Work Experience
MAC Envi Technology Co., Ltd
Huawei Technologies (Thailand): Thailand True One Stop RF Optimization project
(TRUE U850,GL900,L1800,UL2100Mhz Project) May 2018 – Present
Responsible: North of East region (UPC4)
- Main responsibility as RF area north of east: BRR CYP NKR and SRN
- Plan drive test routes for SSO and Cluster Pre-optimization using MapInfo Professional
- Plan and draw the route and send to customer for approval (SSO and Cluster)
- Justify to customer for any coverage/site issue so that it can be signed and ready for Cluster optimization
- Propose for electrical/mechanical tilting and azimuth changes to improve coverage
- Investigate on poor coverage area based on pilot pollution and best server analysis and propose solution to improve network quality
- Investigate and optimize serving cells based on Google Earth, TSSR and Site Audit data.
- Improve dominancy of serving cells and confine the coverage of every cells to reduce pilot pollution and overshooting
- Analyze, justify and solve call events for CS and PS (call attempt failures, call dropped, PDP Context Failed/Dropped, File Transfer Failed/Dropped)
- Perform pilot pollution optimization, SHO/ISHO optimization and detailed drive test analysis using L3 and RRC messages.
- Improve dominancy of serving cells to improve the HSDPA, HSUPA throughput.
- Review and solve very far neighbor and one-way neighbor
- Propose exclusion areas for SSO/PAC optimization reporting.
- Load RNC Performance Data and Configuration Files into excel for check current neighbor couple, Power, RET
- Investigate on customer complaint services
- Check for alarm/traffic/congestion
- Propose solution to improve/solve the site/network issue.
- Present acceptance report to customer (SSV, SSO, Pre-Acceptance)

January 2018 – April 2018 RF Optimization Engineer (DTAC Trinet Ph Ehm and New site Project)
- Main responsibility as RF area north of east: BRM NMA CPM and SRN
- Plan drive test routes for SSO and Cluster Pre-optimization using MapInfo Professional
- Plan and draw the route and send to customer for approval (SSO and Cluster)
- Justify to customer for any coverage/site issue so that it can be signed and ready for Cluster optimization
- Investigate on poor coverage area based on pilot pollution and best server analysis and propose solution to improve network quality
- Perform cluster Acceptance as test cause.
- Perform SSV as test cause and Report.
- Review log file drive test reports.

Huawei Technologies (Thailand): Thailand True One Stop RF Optimization project
(TRUE U850,GL900,L1800,UL2100Mhz Project) January 2015 – December 2017
Responsible: EAST region
- Main responsibility cluster as RF area East of Thailand
- Plan and draw the route and send to customer for approval (SSO and Cluster)
- Justify to customer for any coverage/site issue so that it can be signed and ready for Cluster and SSO optimization
- Propose for electrical/mechanical tilting and azimuth changes to improve coverage
- Investigate on poor coverage area based on pilot pollution and best server analysis and propose solution to improve network quality
- Investigate and optimize serving cells based on Google Earth, TSSR and Site Audit data
- Tuning 4GEnhancement High band as per target.
- Tuning SSO Single site Low band and High band as per target.
- Tuning Split sector for low throughput site as per target.
- OMC (Operation Maintenance Center) to optimization neighbours, tuning parameter, change PCI
conflict and support drive test.
- Complaint handling and propose solution to solve customer problem.
- Troubleshooting CVT (Coverage validation test), cross sector, Interference, throughput,
RTWP, alarm.
- Do the KPI’s Acceptance test/Report to be achieved target.
- Tracking progress in optimization tracking
- To do SSV report for LTE900, 1800, 2100 & GSM900 & UMTS850, 2100 for East region.
- To do PAC cluster report for LTE900, 1800, 2100 & GSM900 & UMTS850, 2100 for East region.
- Support to analyze KPI Benchmark Report of TRUE,AIS,DTAC.
- Support to analyze CVT Report GL900 and L1800 drive test problem by Program Azenqos.
- Support to analyze SSO/PAT Report LTE&U2100 drive test problem.
- Support to analyze CVT Report Split ant U850 and L+U2100 drive test problem.
- Support to analyze DT KPI Report LTE&U2100 Isolate.
- List Neighboring U850,UL2100 using U2000&M2000.

March 2014 – December 2014 RF Optimization Engineer (AIS 3G 2100 Project)
Responsible: North region
- Do RF cluster tuning from drive test log file and provide solution to customer.
- SSV/SSO report, RF cluster optimization report, PAT and FAT report.
- Analysis database for test about scrambing code.
- Check Physical Layer(Layer 1) from test about scrambing code ,RSCP, Ec/No, Ec/Io ,Soft handover.
- Optimization for physical :: antenna height , direction , tilting ,ect.
- Review SSV report for check signal quality.
- Analysis poor performance by using Actix analyzer, Nemo analyzer and MapInfo program.

December 2013 – March 2014 NOC Engineer (AIS 3G 2100 Project)
- Support SSV testing work using M2000 (Script running, site activate/deactivate,
parameter checking)
- Adjust E-tilt, RETSUBUNIT for changed coverage main lobe of beam power.
- Support SSV and drive test work to Check using Huawei M2000.
- Review drive test reports.

May 2013 – December 2013 Drive test Engineer (AIS 3G 2100/True move 3G 850 MHz Project)
Responsible: North region
- Drive Test team leader
- Drive test site by site (SSV,CVT) 3G new site to be on air and report.
- Drive test from route using Nemo (Outdoor)
- Drive test scanning Idel mode using Nemo (Outdoor) no script.
- Stationary test outdoor VDO call , Short call , HSPA ,UL ,DL using Nemo (Outdoor).
- Preparation of Cell Ref files for drive test activity to team.
- Drive Test for network quality checking after 3G cluster ready to test.
- RF optimization: antenna adjustment (Changing E-Tilt and Azimuth) and report.
- Data analysis for finding discrepancy in network from drive test log file by using NEMO analyzer.
- Write route for test site by site.

Training
- GUL Radio Principle Interworking & Related Features for partners.
- LTE Training such LTE Background Introduction, LTE Network Architecture, LTE Channel Concept and Physical Layer Design, MIMO, Radom Access.
- UMTS Training such as UMTS Network Architecture, UTRAN Architecture, Partloss, Multiple Access Technology, UMTS Handover and others.
- GSM/WCDMA Radio Network Planning and Optimization including RF Tools, GENEX Assistant,
Actix Analyzer, Huawei M2000, NEMO Outdoor ,NEMO Analyzer, Map info.
- Drive test: Make VOL, VOS, HSUPA, SCANER and HDPA for Analyzed result of RSCP, EcIo, Download Throughput, Upload Throughput, Pilot pollution, Handover and call.

ตำแหน่ง ฝึกงาน

บริษัท บริษัทห้างหุ้นส่วนจำกัด สตาร์ โอ.เอ. แอนด์ คอมมูนิเคชั่น

ที่อยู่บริษัท ที่อยู่ : 189-193 ถ.บรมอาสน์ ต.ท่าอิฐ อ.เมือง จ.อุตรดิตถ์ 53000

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บริษัท การไฟฟ้าส่วนภูมิภาค

ที่อยู่บริษัท การไฟฟ้าส่วนภูมิภาค ต.เเสนตอ อ. น้ำปาด จ.อุตรดิตถ์

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