FIELD: physics.
SUBSTANCE: invention relates to communication engineering and can be used to control a filter circuit in a signal transmission device. That is ensured by receiving an indication of a plurality of channels used for transmitting uplink transmission signals in a portion of frequency band uplink transmissions. Besides, maximum value of frequency is determined among all frequencies used by multiple channels based on indication and filter response in filter circuit used for separation of upstream transfer signals from signals of downstream transmissions in communication device based on certain value of highest frequency.
EFFECT: technical result consists in improvement of transmission quality.
20 cl, 6 dwg
