Relay initialization method for aviation V2V communication

The invention discloses a relay initialization method for aviation V2V communication, and the method comprises the following steps: S1, judging whether a potential helper user becomes a relay or not according to a relay selection requirement, and maintaining an RRC_CONNECTED state with a base station if the potential helper user becomes the relay; S2, enabling the base station to send the unmanned aerial vehicle identifier of the potential helper user to the unmanned aerial vehicle system traffic management, and informing the unmanned aerial vehicle system traffic management that the potential helper user becomes a relay; S3, enabling unmanned aerial vehicle system traffic management to perform route planning on the potential helper user, and the potential helper user updates own flight path information; S4, enabling the potential helper user to relay the announcement broadcast to the service requester user. The method can be suitable for relay initialization of a 3GPP protocol system, and effectively solves