Radio communication system and communication method

A communication method in a radio communication system including a transmission apparatus configured to transmit a video signal by radio and a plurality of reception apparatuses configured to receive the video signal transmitted from the transmission apparatus by radio, the communication method comprising:

• a step of storing, in a storage section, information for identifying that a priority related to transmission of the video signal, which is set in each of the plurality of reception apparatuses, is either a first priority or a second priority lower than the first priority;
• a step of detecting by an error detection section a presence or absence of occurrence of a communication error related to transmission and reception of the video signal;
• a step of determining, by a determination section, when the occurrence of the communication error related to the transmission and reception of the video signal is detected by the error detection section, whether or not there is a reception apparatus in which the priority is set to the first priority among the reception apparatuses in which the communication error related to the transmission and reception of the video signal is occurring, with reference to the information stored in the storage section;
• and
• a step of performing, by a control section, control for retransmitting the video signal to the plurality of reception apparatuses only in a case where there is a reception apparatus in which the priority is set to the first priority among the reception apparatuses in which the communication error related to the transmission and reception of the video signal is occurring, based on a determination result of the determination section.