METHOD FOR TRANSMIT POWER CONTROL IN A COMMUNICATION SYSTEM

    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

    IPC分类号: H04B7/155 H04W52/52

    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.

    SATELLITE COMMUNICATION SYSTEM
    13.
    发明公开

    公开(公告)号:EP3772187A1

    公开(公告)日:2021-02-03

    申请号:EP19188950.0

    申请日:2019-07-29

    IPC分类号: H04B7/185 H04L5/00

    摘要: The present invention relates to a system (100) for communication via satellite (102) between a gateway (101) and a plurality of terminals (103). The system comprises :
    - a controller device (106) to calculate a time-frequency plan of burst signals from a terminal and to transmit transmit, based on the time-frequency plan, to the terminal information comprising configuration information on transmit burst signals
    - a multi-carrier demodulator structure (107) arranged to receive a resulting signal (104) comprising one or more receive signals and arranged to receive receive information for the receive signals, said multi-carrier demodulator structure comprising one or more multi-carrier demodulator devices, each with
    - a channelizer (1002) to serialize the receive signals, yielding a serialized stream of sample segments corresponding to the receive signals,
    - a processing block to receive that stream of sample segments and to perform
    * 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 said receive information,
    * pre-FEC word aggregation,
    * demapping and decoding.