A method for operating a plurality of antenna panels, the method comprising: maintaining, by a wireless communication device, a plurality of leading time values, the plurality of leading time values indicating a plurality of leading time durations, wherein a leading time is a time period between a time the wireless communication device receives a command that leads to at least one change in the RX beam and/or antenna panel status and a time that the at least one change actually occurs; receiving, by the wireless communication device, an indicator for antenna panel status information from a base station, BS, wherein the antenna panel status information contains information about how many antenna panels at the wireless communication device are used for performing data reception and/or transmission of a channel or a reference signal, or about how many antenna panels at the wireless communication device are utilized in a particular time period; applying, by the wireless communication device, one of the plurality of leading time values to turn on or off at least one of the plurality of antenna panels based on the indicator for antenna panel status information; receiving, by the wireless communication device, a scheduling offset value from the BS, the scheduling offset value comprising at least one of a K0 parameter for a Downlink, DL, channel for determining a Physical Downlink Shared Channel, PDSCH, reception offset and a K2 parameter for an Uplink, UL, channel for determining a Physical Uplink Share Channel, PUSCH, transmission offset, wherein the K0 parameter indicates a number of slots for a normal leading time case in which the wireless communication device does not require to turn one of its antenna panels, or only need to turn on M1 antenna panels, and wherein the K2 parameter indicates a number of slots for a long leading time case in which wireless communication device needs to turn on all of its antenna panels, or needs to turn on M2 antenna panels, where M2 is greater than M1; and determining, by the wireless communication device, that the scheduling offset value is invalid, when a time duration indicated by the scheduling offset value is less than the leading time duration indicated by the applied leading time value, wherein, when the scheduling offset value is invalid, the wireless communication device is not able to transmit and/or receive a DL or UL channel or a reference signal. maintaining, by a wireless communication device, a plurality of leading time values, the plurality of leading time values indicating a plurality of leading time durations, wherein a leading time is a time period between a time the wireless communication device receives a command that leads to at least one change in the RX beam and/or antenna panel status and a time that the at least one change actually occurs; receiving, by the wireless communication device, an indicator for antenna panel status information from a base station, BS, wherein the antenna panel status information contains information about how many antenna panels at the wireless communication device are used for performing data reception and/or transmission of a channel or a reference signal, or about how many antenna panels at the wireless communication device are utilized in a particular time period; applying, by the wireless communication device, one of the plurality of leading time values to turn on or off at least one of the plurality of antenna panels based on the indicator for antenna panel status information; receiving, by the wireless communication device, a scheduling offset value from the BS, the scheduling offset value comprising at least one of a K0 parameter for a Downlink, DL, channel for determining a Physical Downlink Shared Channel, PDSCH, reception offset and a K2 parameter for an Uplink, UL, channel for determining a Physical Uplink Share Channel, PUSCH, transmission offset, wherein the K0 parameter indicates a number of slots for a normal leading time case in which the wireless communication device does not require to turn one of its antenna panels, or only need to turn on M1 antenna panels, and wherein the K2 parameter indicates a number of slots for a long leading time case in which wireless communication device needs to turn on all of its antenna panels, or needs to turn on M2 antenna panels, where M2 is greater than M1; and determining, by the wireless communication device, that the scheduling offset value is invalid, when a time duration indicated by the scheduling offset value is less than the leading time duration indicated by the applied leading time value, wherein, when the scheduling offset value is invalid, the wireless communication device is not able to transmit and/or receive a DL or UL channel or a reference signal.