A device operable in a wireless communication system, the device comprising processing circuitry configured to: determine, idle resource elements in a P2 procedure and/or a P3 procedure, the P2 procedure and the P3 procedure being beam sweeping procedures, based on a channel state information-reference signal, CSI-RS, mapping structure, wherein only transmission beam sweeping is performed in the P2 procedure, only reception beam sweeping is performed in the P3 procedure, and the idle resource elements are resource elements which are not occupied by CSI-RS in OFDM symbols occupied by CSI-RS; and control, in performing the P2 procedure and/or the P3 procedure, a base station to utilize the idle resource elements to transmit data and/or control information to user equipment; the device being characterised in that the processing circuitry is further configured to: determine, according to the number of user equipments triggering the base station to perform the P2 procedure and/or the P3 procedure, whether to activate utilization of the idle resource elements in the P2 procedure and/or the P3 procedure and to notify a determination result to each user equipment; and control, for each user equipment, the base station to transmit data and/or control information to the user equipment by utilizing the idle resource elements, if it is determined to activate utilization of the idle resource elements. determine, idle resource elements in a P2 procedure and/or a P3 procedure, the P2 procedure and the P3 procedure being beam sweeping procedures, based on a channel state information-reference signal, CSI-RS, mapping structure, wherein only transmission beam sweeping is performed in the P2 procedure, only reception beam sweeping is performed in the P3 procedure, and the idle resource elements are resource elements which are not occupied by CSI-RS in OFDM symbols occupied by CSI-RS; and control, in performing the P2 procedure and/or the P3 procedure, a base station to utilize the idle resource elements to transmit data and/or control information to user equipment; the device being characterised in that the processing circuitry is further configured to: determine, according to the number of user equipments triggering the base station to perform the P2 procedure and/or the P3 procedure, whether to activate utilization of the idle resource elements in the P2 procedure and/or the P3 procedure and to notify a determination result to each user equipment; and control, for each user equipment, the base station to transmit data and/or control information to the user equipment by utilizing the idle resource elements, if it is determined to activate utilization of the idle resource elements. determine, according to the number of user equipments triggering the base station to perform the P2 procedure and/or the P3 procedure, whether to activate utilization of the idle resource elements in the P2 procedure and/or the P3 procedure and to notify a determination result to each user equipment; and control, for each user equipment, the base station to transmit data and/or control information to the user equipment by utilizing the idle resource elements, if it is determined to activate utilization of the idle resource elements. <EOS>