User terminal
In order to, in future radio communication systems, appropriately control activation and deactivation timings of an SCell, even in a case that whichever subcarrier spacing is configured on any carrier, an aspect of a user terminal according to the present disclosure includes a receiving section that receives an activation command or deactivation command for a certain cell, and a control section that applies, at a timing independent of a subcarrier spacing of a carrier on which the activation command or deactivation command is transmitted, an operation corresponding to reception of the activation command and deactivation.
1 . A terminal comprising:
a receiver that receives an activation command for a secondary cell; and
a processor that applies, when the receiver receives the activation command in slot n in a cell, a first action corresponding to a reception of the activation command, at a timing later than slot n+k in the cell,
wherein a value of the k is based on a subcarrier spacing of another cell where a physical uplink control channel (PUCCH) for the secondary cell to be activated by the activation command is transmitted and indicates a number of slots each having a same subcarrier spacing as the slot n in the cell,
wherein the secondary cell is not a primary secondary cell,
wherein the first action corresponding to the reception of the activation command includes another PUCCH transmission on the secondary cell, and
wherein the processor applies, in an earliest slot after the slot n+k that is a first slot after the slot n+k and that does not overlap with the slot n+k, a second action related to CSI reporting of a serving cell which is not active.
2 . A radio communication method for a terminal, comprising:
receiving an activation command for a secondary cell;
applying, when the terminal receives the activation command in slot n in a cell, a first action corresponding to a reception of the activation command, at a timing later than slot n+k in the cell,
wherein a value of the k is based on a subcarrier spacing of another cell where a physical uplink control channel (PUCCH) for the secondary cell to be activated by the activation command is transmitted and indicates a number of slots each having a same subcarrier spacing as the slot n in the cell,
wherein the secondary cell is not a primary secondary cell,
wherein the first action corresponding to the reception of the activation command includes another PUCCH transmission on the secondary cell; and
applying, in an earliest slot after the slot n+k that is a first slot after the slot n+k and that does not overlap with the slot n+k, a second action related to CSI reporting of a serving cell which is not active.
3 . A system comprising a terminal and a base station, wherein
the terminal comprises:
a receiver that receives an activation command for a secondary cell; and
a processor that applies, when the receiver receives the activation command in slot n in a cell, a first action corresponding to a reception of the activation command, at a timing later than slot n+k in the cell,
wherein a value of the k is based on a subcarrier spacing of another cell where a physical uplink control channel (PUCCH) for the secondary cell to be activated by the activation command is transmitted and indicates a number of slots each having a same subcarrier spacing as the slot n in the cell,
wherein the secondary cell is not a primary secondary cell,
wherein the first action corresponding to the reception of the activation command includes another PUCCH transmission on the secondary cell, and
wherein the processor applies, in an earliest slot after the slot n+k that is a first slot after the slot n+k and that does not overlap with the slot n+k, a second action related to CSI reporting of a serving cell which is not active, and
the base station comprises:
a transmitter that transmits, to the terminal, the activation command.