Method for transmitting uplink control information and apparatus therefor
A method for transmitting uplink control information and an apparatus therefor are disclosed. In a method for transmitting uplink control information using a physical uplink shared channel (PUSCH) in a wireless communication system, the method is performed by a terminal and includes receiving downlink control information including an accumulated number of physical downlink shared channels (PDSCH) transmissions associated with a cell group configured for the terminal, coding the uplink control information using the accumulated number of PDSCH transmissions, and transmitting the coded uplink control information using the PUSCH.
1. A method for transmitting control information by a terminal in a wireless communication system, the method comprising:
receiving a first downlink control information (DCI) for downlink (DL) scheduling, the first DCI including a DL downlink assignment index (DAI);
receiving a downlink data indicated by the first DCI; and
transmitting the control information through a physical uplink shared channel (PUSCH), the control information including acknowledgement/negative acknowledgement (ACK/NACK) response about the downlink data,
wherein the control information is generated based on an uplink (UL) DAI in a second DCI for scheduling the PUSCH, and
wherein the DL DAI indicates a value related to an accumulated number of DCIs related with downlink scheduling, across a cell group including a plurality of cells, up to a DCI timing corresponding to the first DCI, during a downlink duration.
2. The method of claim 1 , wherein the wireless communication system supports more than 5 downlink cells.
3. The method of claim 1 , wherein the control information is generated further based on a semi-statically configured maximum number of downlink data which can be scheduled by each DCI for DL scheduling.
4. A method for receiving control information by a base station in a wireless communication system, the method comprising:
transmitting a first downlink control information (DCI) for downlink, DL, scheduling, the first DCI including a DL downlink assignment index, DAI;
transmitting a downlink data indicated by the first DCI; and
receiving the control information through a physical uplink shared channel (PUSCH), the control information including acknowledgement/negative acknowledgement (ACK/NACK) response about the downlink data,
wherein the control information is generated based on an uplink (UL) DAI in a second DCI for scheduling the PUSCH, and
wherein the DL DAI indicates a value related to an accumulated number of DCIs related with downlink scheduling, across a cell group including a plurality of cells, up to a DCI timing corresponding to the first DCI, during a downlink duration.
5. The method of claim 4 , wherein the wireless communication system supports more than 5 downlink cells.
6. The method of claim 4 , wherein the control information is generated further based on a semi-statically configured maximum number of downlink data which can be scheduled by each DCI for DL scheduling.
7. A terminal configured to transmit control information in a wireless communication system, the terminal comprising:
a radio frequency (RF) unit; and
a processor configured to control the RF unit,
wherein the processor is configured to receive a first downlink control information (DCI) for downlink (DL) scheduling, the first DCI including a DL downlink assignment index (DAI),
receive a downlink data indicated by the first DCI, and
transmit the control information through a physical uplink shared channel (PUSCH), the control information including acknowledgement/negative acknowledgement (ACK/NACK) response about the downlink data,
wherein the control information is generated based on a uplink (UL) DAI in a second DCI for scheduling the PUSCH, and
wherein the DL DAI indicates a value related to an accumulated number of DCIs related with downlink scheduling, across a cell group including a plurality of cells, up to a DCI timing corresponding to the first DCI, during a downlink duration.
8. The terminal of claim 7 , wherein the wireless communication system supports more than 5 downlink cells.
9. The terminal of claim 7 , wherein the control information is generated further based on a semi-statically configured maximum number of downlink data which can be scheduled by each DCI for DL scheduling.
10. A base station configured to receive control information in a wireless communication system, the base station comprising:
a radio frequency (RF) unit; and
a processor configured to control the RF unit,
wherein the processor is configured to transmit a first downlink control information (DCI) for downlink (DL) scheduling, the first DCI including a DL downlink assignment index (DAI)
transmit a downlink data indicated by the first DCI, and
receive the control information through a physical uplink shared channel (PUSCH), the control information including acknowledgement/negative acknowledgement (ACK/NACK) response about the downlink data,
wherein the control information is generated based on a uplink (UL) DAI in a second DCI for scheduling the PUSCH, and
wherein the DL DAI indicates a value related to an accumulated number of DCIs related with downlink scheduling, across a cell group including a plurality of cells, up to a DCI timing corresponding to the first DCI, during a downlink duration.
11. The base station of claim 10 , wherein the wireless communication system supports more than 5 downlink cells.
12. The base station of claim 10 , wherein the control information is generated further based on a semi-statically configured maximum number of downlink data which can be scheduled by each DCI for DL scheduling.