St Engineering Idirect (europe) Cy Nv

Newtec Cy

Newtec Cy Nv

St Engineering Idirect Cy Nv

Daniel Delaruelle

Dirk Breynaert

Dieter Duyck

Frederik Simoens

Philippe Delbeke

Maximilien d'Oreye De Lantremange

Michiel Mertens

Brecht Reynders

A method for a logon procedure in a 5GNR non-terrestrial network is provided, which includes 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 includes 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. The logon burst signal includes 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.

Logon procedure provide a logon signal

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.

Method for transmit power management on a communication link

An earth station transmitter device is arranged for generating a signal to be transmitted to an earth station receiver device of a satellite communication system. The earth station transmitter device includes: shaping encapsulation for shaping and encapsulating downlink data traffic based on a modulation and coding decodable by an earth station receiver device. The shaping encapsulation is arranged to output downlink baseband frames, and further encapsulation is arranged to receive the downlink baseband frames and to generate uplink baseband frames by segmenting the downlink baseband frames based on a modulation and coding decodable by a satellite receiver device, encoding and modulation means for converting the uplink baseband frames into an uplink transmission signal using the modulation and coding decodable by the satellite receiver device.

Satellite communication transmitter

A method for a logon procedure in a satellite communication system is provided including at least one terminal, a satellite and either a gateway proxy on-board the satellite or a gateway. The method includes transmitting a logon burst signal from a terminal of the satellite communication system to the gateway proxy on-board the satellite or the gateway. The logon burst signal includes 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 terminal.

Logon procedure to provide a logon signal

A receiver device for a communication system is arranged for receiving a signal comprising a plurality of transponder signals each containing a plurality of carrier signals and comprises: an adjustable spectral filter configurable for selecting a desired transponder signal. Means for performing a non-linear transformation on the selected desired transponder signal, whereby the non-linear transformation is represented by a set of parameter values. At least one receive filter configurable to select at least one desired carrier signal of the non-linearly transformed selected desired transponder signal and, performance measuring means for determining one or more performance metrics on at least one carrier signal of the plurality of carrier signals contained in the desired transponder signal to obtain the set of parameter values.

Receiver device and method for non-linear channel compensation

A method of digital modulation comprises generating a stream of modulation symbols in order to produce a modulated signal. The modulation symbols belong to a multi-ring digital signal constellation having all signal points placed on at least two concentric rings. The total number of signal points is larger than 8, and at least one ring has unequally spaced points constructed to form together with at least one neighbouring ring a subset of neighbouring rings. Each signal point of the subset has a unique angular coordinate modulo 2&#x3c0; and the angular spacing of the signal points of the subset is uniform.

Method for designing an amplitude and phase shift keying constellation

Methods and apparatus are described for management of traffic comprising a statistical shaper having a plurality of inputs each for receiving a data stream and a plurality of outputs forming a variable rate bit streams; a multiplexer which combines the bit streams to form an output stream; a modulation stage which is operable to use one or more of a plurality of different modulation schemes to modulate the bit streams onto an output bearer; and, a controller which is operable to control the amount of data arriving at the modulation stage. The controller performs rate control of the data arriving at the modulation stage so that the rate of data output in the output stream from the modulator stage is within a predetermined limit for the transmission channel. For example if the modulation rate for any one bitstream changes, this would alter the rate of data transmission after the modulation stage except that excess data is stored in buffers. For example, by controlling the data rate arriving at the modulator stage, the controller regulates the amount of data stored in buffers at the modulation stage.

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Sint-Niklaas, Belgium

Daniel Delaruelle