Method and apparatus for scheduling in a wireless communication system

1. A method for determining link direction of resources in a wireless communication system, the method performed by a user equipment (UE) and comprising:

receiving frame configuration information from a base station, wherein the frame configuration information informs at least one of a default resource and a flexible resource in a frame, wherein the default resource is a downlink resource or an uplink resource and the flexible resource is a resource which can be used as a downlink resource or an uplink resource;

receiving downlink control information (DCI) format from the base station; and

communicating with the base station based on a link direction of the flexible resource in the frame determined by both the frame configuration information and the DCI format.

2. The method of claim 1 , wherein based on the DCI format informing the UE to transmit an uplink transmission to the base station, the link direction of the flexible resource is determined as an uplink.

3. The method of claim 1 , wherein based on the DCI format informing the UE to receive a downlink transmission from the base station, the link direction of the flexible resource is determined as a downlink.

4. The method of claim 1 , wherein the default resource informed as a downlink or an uplink by the frame configuration information cannot be informed, by the DCI format, as an uplink or a downlink respectively, and

wherein the flexible resource can be informed as a downlink or an uplink by the DCI format.

5. The method of claim 1 , wherein the frame configuration information is received through a radio resource control (RRC) message.

6. The method of claim 1 , wherein the DCI format is received through a physical downlink control channel (PDCCH).

7. A user equipment (UE) comprising:

a transceiver;

at least one processor; and

at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:

receiving, via the transceiver, frame configuration information from a base station, wherein the frame configuration information informs at least one of a default resource and a flexible resource in a frame, wherein the default resource is a downlink resource or an uplink resource and the flexible resource is a resource which can be used as a downlink resource or an uplink resourced;

receiving, via the transceiver, downlink control information (DCI) format from the base station; and

communicating with the base station via the transceiver based on a link direction of the flexible resource in the frame determined by both the frame configuration information and the DCI format.

8. The UE of claim 7 , wherein based on the DCI format informing the UE to transmit an uplink transmission to the base station, the link direction of the flexible resource is determined as an uplink.

9. The UE of claim 7 , wherein based on the DCI format informing the UE to receive a downlink transmission from the base station, the link direction of the flexible resource is determined as a downlink.

10. The UE of claim 7 , wherein the default resource informed as a downlink or an uplink by the frame configuration information cannot be informed, by the DCI format, as an uplink or a downlink respectively, and

wherein the flexible resource can be informed as a downlink or an uplink by the DCI format.

11. The UE of claim 7 , wherein the frame configuration information is received through a radio resource control (RRC) message.

12. The UE of claim 7 , wherein the DCI format is received through a physical downlink control channel (PDCCH).

13. A processing apparatus configured to control a user equipment (UE), the processing apparatus comprising:

at least one processor; and

at least one computer memory operably connectable to the at least one processor and storing instructions that, based on being executed by the at least one processor, perform operations comprising:

receiving frame configuration information from a base station, wherein the frame configuration information informs at least one of a default resource and a flexible resource in a frame, wherein the default resource is a downlink resource or an uplink resource and the flexible resource is a resource which can be used as a downlink resource or an uplink resource;

receiving downlink control information (DCI) format from the base station; and

communicating with the base station based on a link direction of the flexible resource in the frame determined by both the frame configuration information and the DCI format.

14. The processing apparatus of claim 13 , wherein based on the DCI format informing the UE to transmit an uplink transmission to the base station, the link direction of the flexible resource is determined as an uplink.

15. The processing apparatus of claim 13 , wherein based on the DCI format informing the UE to receive a downlink transmission from the base station, the link direction of the flexible resource is determined as a downlink.

16. The processing apparatus of claim 13 , wherein the default resource informed as a downlink or an uplink by the frame configuration information cannot be informed, by the DCI format, as an uplink or a downlink respectively, and

wherein the flexible resource can be informed as a downlink or an uplink by the DCI format.

17. The processing apparatus of claim 13 , wherein the frame configuration information is received through a radio resource control (RRC) message.

18. The processing apparatus of claim 13 , wherein the DCI format is received through a physical downlink control channel (PDCCH).