FIELD: mobile communication systems.
SUBSTANCE: invention can be used for beam reconstruction. Terminal comprises transmission section configured to transmit beam recovery request signal, and a control section configured to control transmission of said beam recovery request signal based on the received power, measured using channel state information reference signal (CSI-RS) or synchronization signal unit (SS) resource, which are connected on base of quasi-collation (QCL) with reference signal of downlink control signal demodulation.
EFFECT: technical result is improvement of system performance.
6 cl, 13 dwg
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