通过分析重大自然灾害或突发性人为事故灾难的应急通信的特征,列举了应急通信应该具备的条件,指出了应急通信的技术保障措施。 By analyzing the characteristics of emergency communications of major natural disasters or sudden human-caused accidents, the conditions that emergency communications should have are listed, and the technical safeguard measures for emergency communications are pointed out.