US 12,132,561 B2
Satellite communication system
Alain Rolle, Ghent (BE); and Philippe Delbeke, Wilrijk (BE)
Assigned to ST ENGINEERING IDIRECT (EUROPE) CY NV, Sint-Niklaas (BE)
Filed by ST ENGINEERING IDIRECT (EUROPE) CY NV, Sint-Niklaas (BE)
Filed on Jan. 27, 2022, as Appl. No. 17/586,190.
Application 17/586,190 is a continuation in part of application No. PCT/EP2020/070112, filed on Jul. 16, 2020.
Claims priority of application No. 19188950 (EP), filed on Jul. 29, 2019.
Prior Publication US 2022/0149930 A1, May 12, 2022
Int. Cl. H04W 4/00 (2018.01); H04B 7/185 (2006.01); H04L 1/00 (2006.01); H04L 5/00 (2006.01)
CPC H04B 7/18508 (2013.01) [H04B 7/18515 (2013.01); H04B 7/18586 (2013.01); H04L 1/0057 (2013.01); H04L 5/0005 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A system for communication via satellite between a gateway and a plurality of terminals comprising:
a controller device arranged to calculate a time-frequency plan of one or more transmit burst signals from at least one terminal of a satellite network, satnet, with a given total satnet bandwidth and to 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 the terminal of the first class of terminals to transmit the one or more transmit burst signals in a frame, each transmit burst signal being configured with the configuration information and having a time duration less than or equal to a duration of said frame,
a multi-carrier demodulator structure arranged to receive a resulting signal comprising one or more parallel receive signals corresponding to the one or more transmit burst signals of the at least one terminal of the satnet, said resulting signal having an aggregate occupied bandwidth less than or equal to the given total satnet bandwidth, and arranged to receive from the controller device receive information for the one or more parallel receive signals, said multi-carrier demodulator structure comprising
a channelizer to serialize slice-by-slice the one or more parallel receive signals at an output rate greater than or equal to the given total satnet bandwidth, wherein a slice is formed by a predetermined number of samples of the resulting signal, yielding a serialized stream of one or more sample segments corresponding to the one or more parallel receive signals, said sample segments referring to a slice portion in the frequency and time domain
a processing block arranged to receive the serialized stream of one or more sample segments and arranged to perform
segment-by-segment demodulation of the sample segments based on the sample segment content, on a state indicative of the receive signal to which the sample segment belongs and on the receive information
pre-FEC word aggregation,
demapping and decoding,
wherein the demodulation comprises matched filtering on a segment-by-segment basis, yielding a stream of symbol segments, and
wherein the pre-FEC word aggregation comprises aggregation of symbol segments of the stream which belong to a single forward error correction word.