Method for very high throughput satellite data transmission

A method for transmitting data by satellite between a gateway station and user terminals, the data being transmitted to the satellite by the gateway station over an uplink UL in the form of a succession of frames and retransmitted by the satellite over a downlink DL to the user terminals, the retransmission of the data over the downlink DL being performed after modulation with a carrier frequency dedicated to the corresponding downlink DL, the method consisting, in the gateway station, in segmenting, assembling and encapsulating the data in different successive basic frames UL BB-Frames, that can be transmitted over the uplink, each basic frame UL BB-Frame comprising a header field UL BBHeader, dedicated to the uplink UL, and a data field UL DATAFIELD to be sent over the uplink UL, then in coding and in modulating the data of each basic frame UL BB-Frame to construct frames UL PL-Frames and in sending the UL PL-Frames over the uplink UL, wherein the method further comprises:

• a first additional preprocessing step consisting, in the gateway station, in pre-segmenting the data as a function of the carrier frequency which is dedicated to them on the downlink DL and in encapsulating the pre-segmented data in successive basic frames DL BB-Frames, that can be transmitted over the downlink, the encapsulation of each basic frame DL BB-Frame of the downlink consisting in adding a transport header DL BB-TH dedicated to the downlink,
• and a second additional step consisting, in the gateway station, in incorporating the different basic frames DL BB-Frames of the downlink, associated with their respective transport headers DL BB-TH, in the data field of the different basic frames UL BB-Frames of the uplink.