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公开(公告)号：EP3800807A1
公开(公告)日：2021-04-07
申请号：EP20199118.9
申请日：2020-09-29
发明人： DELARUELLE, Daniel
摘要： The present invention relates to a method for a logon procedure in a satellite communication system comprising at least one terminal, a satellite and either a gateway proxy on-board the satellite or a gateway. The method comprises transmitting a logon burst signal from a terminal of the satellite communication system to the gateway proxy on-board the satellite or the gateway, 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 terminal.
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公开(公告)号：EP3879722A1
公开(公告)日：2021-09-15
申请号：EP21169391.6
申请日：2019-07-29
摘要： 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}.
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公开(公告)号：EP4383590A1
公开(公告)日：2024-06-12
申请号：EP22211556.0
申请日：2022-12-06
CPC分类号： H04W52/52 , H04W52/243
摘要： The present invention relates to a method for adjusting transmit power of a terminal transmitter on a return link between the terminal transmitter and a receiver. The terminal transmitter is one of a plurality of terminal transmitters, wherein each terminal transmitter can send one or more data burst signals. The receiver receives a receive signal being an aggregate of versions of the data burst signals sent from the plurality of terminal transmitters. The method comprises:
a) checking on a version of at least one data burst signal comprised in the receive signal, said at least one data burst signal sent from a first terminal transmitter of said plurality, whether a condition is met that the amount of non-linear distortion power with which the version of the at least one data burst signal is impaired, said non-linear distortion resulting from a power amplifier in the first terminal transmitter, is a given number of dB below the amount of noise power with which the version of the at least one data burst signal is impaired, and
b) determining an updated transmit power value for a next data burst signal to be sent from the first terminal transmitter, depending on the outcome of said checking.
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