Railway MCVideo system group call video transmission control method

The invention discloses a method for controlling group calling video transmission of a railway MCVideo system, which can meet the authority control requirements of various user terminals in the application scene of railway trunking communication and dispatching communication services, is beneficial to more reasonable application of railway private network resources, and can ensure the feasibility, controllability and high efficiency of video transmission in railway video group calling. Specifically, different video transmission permissions can be respectively configured for different types of user terminals according to characteristics and application strategies of the user terminals, and a more perfect video sending control, transmission notification and receiving control method (collectively referred to as a video transmission control method) is provided on this basis. Through the user video transmission permission configuration and video transmission control method, the railway clustering and dispatching c