- Lead the team to drive state-of-the-art automation technologies. - Construct the framework and automate everything which could improve engineering productivity such as testing, log analysis, and process.

***IMS registration group leader with 6 members***IMS/VoLTE coordinator for IOT/chip certification『5G/VoNR』 - PDU Session, QoS - 5G roaming『Dual LTE Dual VoLTE』 - SR-DSDS (Single Receiver - Dual SIM Dual Standby) - The first one to complete the interoperability test of dual 4G VoLTE on the China Mobile network(CMCC) in the world. - Dual SIM Dual IMS registration service - Support VoLTE+VoLTE/VoLTE+WiFi Calling/WiFi Calling+WiFi Calling with single active call 『IMS/VoLTE』 - VoLTE Roaming - S8 Home Routed (S8HR) and Local Breakout (LBO-HR, LBO-VR) - IR.92, TS24.229, TS34.229 - ISIM/USIM access for IMS registration - IMS Registration (IMS AKA authentication) - IMS PDN/Media Bearer Management, P-CSCF discovery - Emergency call (Emergency registration, service category) - Modem Protocol/Android System Integration - World-Wide IMS launch supporting - Operator/Network Vendor IOT Experience (North America-TMOUS, China-CMCC, Japan-NTT DoCoMo) - Test Machine (Anritsu MD8475/MD8430/MD8480, Agilent PXT, R&S CMW500)『WiFi Calling』 - IR.51 - WiFi PDN/ePDG management - WiFi <​-> 3GPP Network handover/selection『4G/LTE Protocol Stack』 - TS27.007 chapter 10, AT commands of packet domain - PDP context management (Activation, Modification, Deactivation) - TFT/ QoS modification, translation『Connnection Manager』 - control 2G/3G/4G handover (timing and algorithm)