describes the procedure for remotely initiated media transmission during an MCVideo session by an authorized user. Only two UEs involved in the session are shown for the simplicity.
MCVideo session is established between MCVideo clients (client A and client B) and MCVideo server
Transmission control is established between transmission control participants and transmission control server and there is no ongoing media transmission.
The user of the UE at the transmission control participant A is authorized to remotely initiate a media transmission from transmission control participant B
Transmission control participant A sends a remote transmit media request message to transmission control server including the MCVideo ID of the user at the UE of the transmission control participant B and the MCVideo ID of the user at the UE of the transmission control participant A.
Transmission control server checks whether the user at the UE of transmission control participant A is authorized to remotely initiate a media transmission from transmission control participant B. If authorized, the transmission control server makes the determination on what action (grant, deny, or queue) to take on the request based on transmission control criteria (e.g., group policy) and determines to accept the remotely initiated transmit media request from transmission control participant A.
Transmission control server sends a transmit media granted message to transmission control participant B.
Transmission control server provides a remote transmit media response message to transmission control participant A indicating success (media transmission occurs from transmission control participant B) or a failure reason.
Transmission control participant B starts sending video media over the session established to the transmission control server.