2014年11月 - 現在
● RF Software Related - (2015/01 ~ 2021/11)
*. GSM/WCDMA/LTE/CDMA/TDSCDMA/5GNR-Sub6/5GNR-mmW
*. Modem: AT Command/RF Bringup/QMI-QCRIL_QCRIL_HOOK
*. RF Driver Development
(Including RFFE SW Control, Qualcomm PA/ASM/GRFC/Tuner/Coupler/FBRX)
*. 3rd Party RFFE MIPI Device Porting
(Including PA/ASM/Tuner/Coupler/FBRX)
*. RIL Driver/Modem Driver Design (Power Mngr/SD Card Detection/Phone/Message/Settings ...etc)
*. UIM Driver Integration (SS/DSDS/STK)
*. QCN/NV/MBN/EFS Architecture
*. RF Calibration Process Participant
*. SAR Power Back Off SW Porting/Integration
*. LTE CA/5GNR ENDC(NSA/SA)
*. TE Operation:
- Anrisu TE: 8475A/8820C/8821C
- Keysight TE: E7515B/E6640A/mmW CATR
- 5G mmW Beamforming Char Calibration Process
● Carrier Certification Related (2015/01 ~ 2021/11)
*. Lab Comformance Test (GCF/PTCRB)
*. Carrier Certification Pre-test
*. ATT/Verizon Carrier Certificate Issue Fixing
*. Certification Issue Debug: 3GPP/GCF/PTCRB/ATT/Verizon/Sprint/TMO/Compulsory
● Android Mobile Related(Qualcomm) - (2011/10 ~ 2021/11)
*. Android APP/API/UI/Service/SELinux
*. Android BSP Kernel Driver
*. Android Framework/JNI
*. Battery/Modem Thermal Management
*. LCD/Blutooth Driver porting
*. MSP430 MCU Control (Firmware Intergration)
● Windows OS Related(Qualcomm) - (2011/11 ~ 2019/11)
*. Windows Mobile OS: WE8H, WIN10, WoS
*. Windows KMDF/UMDF Driver
*. Windows Modem WMRIL Driver
*. Windows RF Driver Development
*. Windows Power Management Analysis
*. LCD/Touch Panel Driver Porting
*. Windows on ARM(Snapdragon)
*. Debug Tools: WINDBG/ETW/WPP Trace/Field Medic
● Qualcomm Solution
2G/3G/4G Platform: MSM8974/MSM8992/MSM8909/MSM8996/SDM660/SDM850/QCM4290
Non-WWAN Platform: APQ8909
5G Platform: QCM6490/SM7225
● Experience of Biz Trip
*. WIN10 WINHEC 2015 Workshop at Shenzen in China
*. WIN10 WINHEC 2018 Workshop in Taipei
*. Qualcomm Worksop at Shenhai/ZhangJiang in China
*. On-site support (2015) of Verizon LAB Filed Trial (LA/Irvine)