a first receiver, which receives a first information block and a first signaling, the first information block comprises a MAC CE, and the first signaling comprises DCI; and

a first processor, which operates a first signal;

wherein the first information block is used to activate M first-type indexes of N first-type indexes, M being a positive integer greater than 1, and N being a positive integer no less than M;

the first information block indicates a TCI codepoint corresponding to each first-type index of the M first-type indexes; the M first-type indexes are used to determine M1 information elements out of N1 information elements, and the M first-type indexes are used to determine M2 information elements out of N2 information elements, M1 and M2 respectively being positive integers greater than 1 and no greater than M, N1 being a positive integer no less than M1, and N2 being a positive integer no less than M2; the N1 is no greater than a first threshold, and the N2 is no greater than a second threshold; the first threshold and the second threshold are positive integers, respectively; the first threshold is unequal to the second threshold; the N1 information elements and the N2 information elements are respectively TCI states configured for downlink data transmissions and uplink data transmissions; any information element of the N1 information elements and the N2 information elements comprises a first-type index and a second-type index set, and each second-type index set comprises one or more second-type indexes, of which each second-type index indicates a reference signal resource; a reference signal resource indicated by any second-type index comprised by any information element of the N1 information elements and the N2 information elements is one of a CSI-RS resource, a SRS resource, or a synchronisation signal/physical broadcast channel block resource; the first signaling comprises scheduling information of the first signal, and the first signaling indicates a first information element; the operating action is receiving or transmitting; when the operating action is receiving, the first signaling indicates the first information element out of the M1 information elements, and a second-type index set comprised by the first information element is used to determine Rx parameters of the first signal; when the operating action is transmitting, the first signaling indicates the first information element out of the M2 information elements, and a second-type index set comprised by the first information element is used to determine Tx parameters of the first signal; the Rx parameters comprise large-scale properties of a channel over which the first signal is conveyed, and the large-scale properties comprise one or more of delay spread, Doppler spread, Doppler shift, average gain, average delay or Spatial Rx parameters; the Tx parameters comprise a spatial domain transmission filter; the first information block is transmitted on a PDSCH, the first signaling is transmitted on a PDCCH.