When a space vehicle is flying at ultra-high speed in the atmosphere, a plasma sheath may form around it due to aerodynamic heating or ablation. This will affect the communication characteristics of the space vehicle. Further, it will result in serious communication disruption and hence threaten the safety of the space vehicle. The new generation of space vehicles of our country will fly in the atmosphere for longer time at higher speed. Moreover, because of their complex trajectory, real-time communication and control are needed. Therefore, the problem of communication disruption should be solved thoroughly. The possibility of using the methods such as distribution optimization of antenna location and ground telemetry equipment, millimeter-wave and terahertz wave communication, external magnetic field and laser communication to solve blackout and the problems to be faced are studied.