Tiantong-1 satellite mobile communication system

Tiantong-1 satellite mobile communication system is China's self-developed and built satellite mobile communication system, but also an important part of China's space information infrastructure. The system consists of space segment, ground segment and user terminal. The space segment plans to consist of several geosynchronous orbit mobile communication satellites.

Based on the DFH-4 satellite framework, the Tiantong 1, like its predecessors, is tasked with providing all-weather, round-the-clock, stable and reliable mobile communication services to users in China and its surrounding countries including Brunei, Myanmar, Laos, Thailand, Cambodia, Vietnam, Malaysia, Singapore, Indonesia, Philippines, Palau，Timor-Leste, Japan, North Korea, South Korea, Bangladesh, Bhutan and Nepal，especially to those in places with restricted access to traditional communication networks such as mountains and plateaus.