SATELLITE COMMUNICATION SYSTEM

The present invention relates to a controller device (106) for use in a system (100) for communication via satellite (102) between a gateway (101) and a plurality of terminals (103). The controller device comprises calculation means arranged to calculate a time-frequency plan for transmitting one or more burst signals from at least one terminal of a satellite network and is arranged to transmit transmit information to each terminal of the at least one terminal based on the calculated time-frequency plan in order to allow the terminal to transmit a transmit burst signal comprising one or more forward error correction words, said transmit information for a first class of terminals comprising configuration information on one or more transmit burst signals so allowing said terminal of said first class of terminals to transmit said one or more transmit burst signals in a frame, each transmit burst signal being configured with said configuration information and having a time duration less than or equal to a duration of the frame, wherein the configuration information comprises information on at least one of {a symbol rate based on signal quality, power based on signal quality, location of groups of pilot symbols, size of groups of pilot symbols in the transmit burst signal, a preamble}.