Regenerative satellite payload with partial decoding of serial concatenated codes

Embodiments provide a transceiver for a satellite, the transceiver comprising a receiver, a digital data stream processor and at least one transmitter. The receiver is configured to receive an uplink data stream from a satellite gateway or another satellite, the data stream carrying a plurality of data packets. The digital data stream processor is configured to process the uplink data stream, to obtain the plurality of data packets, - wherein at least one of the data packets comprises payload data and error correcting data allowing a full error correction of the payload data, wherein the data stream processor is configured to perform no or only a partial error correction of the payload data of the at least one data packet, to obtain a downlink data stream; - or wherein the digital data stream processor is configured to demodulate the uplink data stream, to obtain the plurality of data packets, wherein the data stream processor is configured to decode and error correct at least one of the data packets using error correcting data contained in the data packet, to obtain as decoded and error corrected payload data a pre-encoded data packet comprising payload data and error correcting data for the payload data, and to modulate the pre-encoded data packet comprising the payload data and the error correcting data for the payload data, to obtain a downlink data stream; The at least one transmitter is configured to transmit the downlink data stream to user terminal or another satellite.