Satellite communication subsystems and segments

"In satellite communication system, various operations take place. Among which, the main operations are orbit controlling, altitude of satellite, monitoring and controlling of other subsystems.
A satellite communication consists of mainly two segments. Those are space segment and earth segment. so, accordingly there will be two types of subsystems namely, space segment subsystems and earth segment subsystems.
Space Segment Subsystems
The subsystems present in space segment are called as space segment subsystems. Following are the space segment subsystems.
• AOC Subsystem
• TTCM Subsystem
• Power and Antenna Subsystems
• Transponders
Earth Segment Subsystems
• The subsystems present in the ground segment have the ability to access the satellite repeater in order to provide the communication between the users. Earth segment is also called as ground segment.