Abstract: A method for adjusting transmit power of a terminal transmitter on a return link between the terminal transmitter and a receiver. The method includes: a) determining on a version of at least one data burst signal comprised in the receive signal, and a first metric is indicative of the amount of non-linear distortion with which the version of the at least one data burst signal is impaired; b) determining on at least a part of the receive signal a second metric indicative of at least one impairment other than the amount of non-linear distortion; c) determining an updated transmit power value for a next data burst signal to be sent from the first terminal transmitter, thereby taking into account the first and second metric.

Abstract: The present invention relates to a method for a logon procedure in a 5GNR non-terrestrial network comprising at least one user equipment, a satellite and either a gNodeB base station or a gNodeB_base station on-board the satellite or a gateway. The method comprises transmitting a logon burst signal from a user equipment of the satellite communication system to the gNodeB base station or gNodeB base station on-board the satellite, whereby the logon burst signal comprises one or more transmit parameter fields, each transmit parameter field corresponding to a signal transmit time or a signal transmit level, or a signal transmit frequency of the logon burst signal in the user equipment.

Abstract: A system for communication via satellite between a gateway and a plurality of terminals comprises: a controller device to calculate a time-frequency plan of burst signals from a terminal and to transmit, based on the time-frequency plan, to the terminal information including configuration information on transmit burst signals; a multi-carrier demodulator structure arranged to receive a resulting signal comprising receive signals and arranged to receive information for the receive signals.