Physical layer key technologies of rail traffic broadband mobile communication systems 并列题名：Physical layer key technologies of rail traffic broadband mobile communication systems Radio resource management of rail traffic broadband mobile communication system Principles and key technologies of multi-carrier broadband mobile communications Tenna technologies and applications in mobile communication system 并列题名：Tenna technologies and applications in mobile communication system Self-organization networking techniques in broadband mobile communication systems Self-organization networking techniques in broadband mobile communication systems. 并列题名：Self-organization networking techniques in broadband mobile communication systems Network technologies of space TT&C communication system