(The following topics include but are not limited to)
Topic 1: Communication Technology
Wireless Communication Technology
Optical Communication Technology
satellite communication system
Mobile communication technology
Short distance communication technology
Communication signal processing
Communication chip design
Evolution of Communication Standards
Topic 2: Network Optimization
Network performance analysis
Network resource optimization
Network topology optimization
Routing protocol optimization
Load balancing technology
Network coverage optimization
Network energy-saving optimization
Optimization algorithm application
Topic 3: Information Security
Cryptology applies 
Network Security Protection
Data privacy protection
Identity authentication technology
Access control mechanism
Malicious code detection
Security protocol design
Security situation awareness