FIELD: radio communication system.
SUBSTANCE: terminal containing the transmitter transmits random access preamble transmissions that apply to the random access procedure with the possibility of collision to perform beam failure recovery (BFR). It receives a random access response using a spatial filter applied to the transmission of the random access preamble for transmission of the uplink control channel (PUCCH), in a time interval starting 28 symbols from the last symbol of the physical downlink control channel (PDCCH) in which the random access response is first received before receiving configuration information of another spatial filter.
EFFECT: improvement of efficiency of information transmission.
4 cl, 7 dwg
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