Discontinuous reception operation method
The present specification proposes a discontinuous reception operation method characterized by: in a wireless communication system, a terminal in which a plurality of cells are configured performing a physical downlink control channel (PDCCH) monitoring on-duration; receiving bandwidth part (BWP) setting information, wherein the BWP setting information informs a specific BWP; receiving a PDCCH on the basis of the PDCCH monitoring, wherein the PDCCH includes dormant indication information for a specific cell from among the plurality of cells of the terminal; and activating the specific BWP on the basis of the dormant indication information indicating non-dormancy.
1. A method performed by a user equipment (UE) for which a primary cell (PCell) and a secondary cell (SCell) are configured, the method comprising:
receiving bandwidth part (BWP) configuration information,
wherein the BWP configuration information informs a specific BWP to be activated; and
detecting downlink control information (DCI) in a reception of a physical downlink control channel (PDCCH) on the PCell,
wherein the DCI includes SCell dormancy information,
wherein the SCell dormancy information includes a bit, which corresponds to a secondary cell group including the SCell, having a value for dormancy or a value for non-dormancy, and
wherein based on a current active BWP being a dormant BWP, the value for the non-dormancy for the bit informs the UE of an activation of the specific BWP provided by the BWP configuration information.
2. The method of claim 1 , wherein the UE does not perform PDCCH monitoring or does not receive a physical downlink shared channel (PDSCH) on the dormant BWP.
3. The method of claim 1 , wherein the dormant BWP is a BWP set by higher layer signaling.
4. The method of claim 1 , wherein a maximum number of BWPs configurable for a cell for the UE is four.
5. The method of claim 1 , wherein the UE receives a physical downlink shared channel (PDSCH) or the PDCCH on the specific BWP.
6. The method of claim 1 , wherein the PCell is a cell in which the UE performs an initial connection establishment procedure or a connection re-establishment procedure, and the SCell is a cell in which additional radio resources are provided to the UE.
7. A user equipment (UE) for which a primary cell (PCell) and a secondary cell (SCell) are configured, the UE comprising:
one or more memories storing instructions;
one or more transceivers; and
one or more processors coupling the one or more memories and the one or more transceivers,
wherein the one or more processors execute the instructions to:
receive bandwidth part (BWP) configuration information,
wherein the BWP configuration information informs a specific BWP to be activated; and
detecting downlink control information (DCI) in a reception of a physical downlink control channel (PDCCH) on the PCell,
wherein the DCI includes SCell dormancy information,
wherein the SCell dormancy information includes a bit, which corresponds to a secondary cell group including the SCell, having a value for dormancy or a value for non-dormancy, and
wherein based on a current active BWP being a dormant BWP, the value for the non-dormancy for the bit informs the UE of an activation of the specific BWP provided by the BWP configuration information.
8. An apparatus configured to control a user equipment (UE) for which a primary cell (PCell) and a secondary cell (SCell) are configured, the apparatus comprising:
one or more processors; and
one or more memories operably coupled by the one or more processors and storing instructions,
wherein the one or more processors execute the instructions to:
receive bandwidth part (BWP) configuration information,
wherein the BWP configuration information informs a specific BWP to be activated; and
detecting downlink control information (DCI) in a reception of a physical downlink control channel (PDCCH) on the PCell,
wherein the DCI includes SCell dormancy information,
wherein the SCell dormancy information includes a bit, which corresponds to a secondary cell group including the SCell, having a value for dormancy or a value for non-dormancy, and
wherein based on a current active BWP being a dormant BWP, the value for the non-dormancy for the bit informs the UE of an activation of the specific BWP provided by the BWP configuration information.