5G/6G protocol specifications and technologies researching, providing and designing test and simulation solutions for operators, power customers, etc, with Dotouch high performance test instruments.

Respnsibility:Participate in 4G LTE L1/L2 Software Platform and Algorithms Design, System Verification, Problem Reproduction and Location for Docomo customized eNBProject Experience-- Mastery and application of 4G air interface protocol and system architecture, in-depth understanding of the data structure and process synchronization of PHY platform in physical layer, in-depth understanding of the correspondence between L1/L2/L3 protocol units and upper and lower channels, the research of L1/L2 algorithm, the research of L3 protocol and algorithm, mastery and application of EPC interface standards and protocols in core network--DOCOMO Customized 4G eNB Architecture Design, L1/L2/L3 Software Architecture Design and Distribution Method on Control and Business Cards--Functional Aided Design and Verification of 4G UE Simulator, Debugging and Testing between 4G UE Simulator and 4G eNB--Automated programming test based on LUA script in WTS environment, maximum call and traffic model of cell--DOCOMO Field Problem Log and Database Analysis, Customer Problem Reproduction, Location and Solution--DCA Analysis of 4G System Problems, Improvement and Optimization of 4G Software Function and System Performance--Mastery of 5G NR System Architecture and Connection for Nokia 5G Airscale System Equipment in NSA ModeProject Difficulties4G Air Interface Protocol and System Architecture, Functional Aided Design and Verification for 4G UE Simulator, 4G L1/L2/L3 Protocol and Algorithms, Docomo 4G eNB Database Configuration and Analysis, System Problem Discovery, Location and Solution, Field Problems’ ReproductionMajor achievements--Functional Aided Design and Verification for 4G UE Simulator--Design and validation of L1/L2 system platform and algorithm--Start-up of automated testing project for 4G platform--Reproduction and location of serious call drop-off problems in DOCOMO client laboratory and field on 4G Macro and LRC eNB platforms

Responsibilities:End-to-end verification of Nokia 2G system and handover function verification between 2G and 3G systemProject Experience:--2G BSC/BTS Laboratory Planning, Construction, Equipment Purchase and Maintenance--Nokia Flexi 2G BSC/BTS Base Station Controller and Base Station System Software and Cell Business Parameter Configuration--Parameter Configuration and Terminal Switching between Nokia 2G and DingQiao 3G TD-SCDMA Cells--Functional Automation Programming Simulation Test of High Speed Railway and Multi-link Automatic Recovery Function Test of Base Station--BSC A Interface Signaling Analysis and System Performance Analysis--The Finnish R&D Center studied for two weeks (high-speed train function and base station multi-link automatic recovery function)--Software testing project management and network planning and optimizationProject Difficulties:--Flexi BSC software system parameter configuration, TD-SCDMA software cell parameter configuration--Functional Automation Simulation Programming of BTS High Speed Railway (C Language) and Application of Fader Signal AttenuatorMajor achievements:--Planning and Construction of Nokia JiuXianQiao 2G End2End Verification Laboratory and Switching Configuration of 3G TD-SCDMA cells--High-speed Railway function simulation project and base station multi-link automatic recovery function project completed

Resposibilities:Analysis and Development of Location Function Requirements of China Mobile 2.5G Mobile NetworkFunctional Analysis and Design of Motorola 2G BSC/BTS and Verification of Large Configuration FunctionProject Experience:Code Implementation of Location Function in China Mobile 2.5G Mobile Network (C Language Programming)Motorola 2G BSC/BTS Card Function and Software Distribution Design, System Function Requirement Analysis and VerificationSystem Function Verification in Motorola 2G BSC/BTS Large Configuration EnvironmentSoftware Configuration and Analysis of Motorola 2G BSC/BTS Different Base Station Types and Inter-cell HandoverMastering and Application of CMM Software Capability MaturityThree months' study at 2G R&D Center in USAProject Difficulties:Interface programming between 2.5G mobile network location function and SS7Software Distribution Design of BSC Base Station ControllerHandover between Cells under Different Conditions and Coding Compatibility of Half-Rate TelephonesMajor achievements:Analysis, Realization, Design Optimization and Verification of Base Station System FunctionStart-up of Base Station Automation Programming Test ProjectLarge BSC/BTS Configuration Project Transfer (From American R&D Center to China R&D Center)