A transmission method, comprising: determining (501; 601), by a transmitting end device, first Scheduling Assignment, SA, information and first data to be transmitted, the first SA information at least comprising indication information about a Demodulation Reference Signal, DMRS, sequence for the demodulation of the first data; and transmitting, by the transmitting end device, the first SA information in a first physical layer format and transmitting the first data in a second physical layer format, wherein the transmission method is characterized by further comprising: transmitting, by the transmitting end device, second SA information in a third physical layer format when transmitting the first SA information in the first physical layer format and transmitting the first data in the second physical layer format, when the transmitting end device transmits the first SA information in the first physical layer format, transmits the first data in the second physical layer format and transmits the second SA information in the third physical layer format, a time-frequency resource occupied by the first SA information is comprised in a set of time-frequency resources for second data indicated in the second SA information, wherein the third physical layer format is different from the first physical layer format and the second physical layer format. determining (501; 601), by a transmitting end device, first Scheduling Assignment, SA, information and first data to be transmitted, the first SA information at least comprising indication information about a Demodulation Reference Signal, DMRS, sequence for the demodulation of the first data; and transmitting, by the transmitting end device, the first SA information in a first physical layer format and transmitting the first data in a second physical layer format, wherein the transmission method is characterized by further comprising: transmitting, by the transmitting end device, second SA information in a third physical layer format when transmitting the first SA information in the first physical layer format and transmitting the first data in the second physical layer format, when the transmitting end device transmits the first SA information in the first physical layer format, transmits the first data in the second physical layer format and transmits the second SA information in the third physical layer format, a time-frequency resource occupied by the first SA information is comprised in a set of time-frequency resources for second data indicated in the second SA information, wherein the third physical layer format is different from the first physical layer format and the second physical layer format. transmitting, by the transmitting end device, second SA information in a third physical layer format when transmitting the first SA information in the first physical layer format and transmitting the first data in the second physical layer format, when the transmitting end device transmits the first SA information in the first physical layer format, transmits the first data in the second physical layer format and transmits the second SA information in the third physical layer format, a time-frequency resource occupied by the first SA information is comprised in a set of time-frequency resources for second data indicated in the second SA information, wherein the third physical layer format is different from the first physical layer format and the second physical layer format.