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 user equipment (UE) in a wireless communication system, the method comprising:
receiving one or more physical downlink control channels (PDCCHs) each carrying downlink control information (DCI) including a downlink assignment index (DAI) related to downlink (DL) scheduling;
performing, in one or more serving cells, a reception of each downlink data related to each of the one or more PDCCHs; and
transmitting an acknowledgement/negative acknowledgement (ACK/NACK) response for the reception of each downlink data,
wherein a value of the DAI denotes an accumulated number that is counted for each pair of {each serving cell related to each downlink data, each PDCCH monitoring timing related to each DL scheduling}.
2. The method of claim 1 , wherein the value of the DAI denotes the accumulated number that is counted, up to a current PDCCH monitoring timing where a corresponding PDCCH is present.
3. The method of claim 2 , further comprising:
receiving second DCI for scheduling a physical uplink shared channel (PUSCH),
wherein the ACK/NACK response is transmitted through the PUSCH scheduled by the second DCI, and the ACK/NACK response is generated based on a second DAI included in the second DCI.
4. The method of claim 1 , wherein a maximum number of serving cells supported by the UE is greater than 5.
5. The method of claim 1 , wherein the control information is generated based on a semi-statically configured maximum number of downlink data which can be scheduled by each DCI for DL scheduling.
6. A non-transitory computer readable medium storing a program for performing the method of claim 1 .
7. A device for wireless communication, the device comprising:
a memory configured to store instructions; and
a processor configured to perform operations by executing the instructions, the operations comprising:
receiving one or more physical downlink control channels (PDCCHs) each carrying downlink control information (DCI) including a downlink assignment index (DAI) related to downlink (DL) scheduling;
performing, in one or more serving cells, a reception of each downlink data related to each of the one or more PDCCHs; and
transmitting an acknowledgement/negative acknowledgement (ACK/NACK) response for the reception of each downlink data,
wherein a value of the DAI denotes an accumulated number that is counted for each pair of {each serving cell related to each downlink data, each PDCCH monitoring timing related to each DL scheduling}.
8. The device of claim 7 , further comprising:
a transceiver and
wherein the device is a user equipment (UE) configured to operate in a wireless communication system.
9. The device of claim 7 , wherein the device is an application specific integrated circuit (ASIC) or a digital signal processing device configured to control a user equipment (UE) in a wireless communication system.
10. A method for receiving control information by a base station (BS) in a wireless communication system, the method comprising:
transmitting one or more physical downlink control channels (PDCCHs) each carrying downlink control information (DCI) including a downlink assignment index (DAI) related to downlink (DL) scheduling;
performing, in one or more serving cells, a transmission of each downlink data related to each of the one or more PDCCHs; and
receiving an acknowledgement/negative acknowledgement (ACK/NACK) response for the transmission of each downlink data,
wherein a value of the DAI denotes an accumulated number that is counted for each pair of {each serving cell related to each downlink data, each PDCCH transmission timing related to each DL scheduling}.
11. The method of claim 10 , wherein the value of the DAI denotes the accumulated number that is counted, up to a current PDCCH transmission timing where a corresponding PDCCH is present.
12. The method of claim 11 , further comprising:
transmitting second DCI for scheduling a physical uplink shared channel (PUSCH),
wherein the ACK/NACK response is received through the PUSCH scheduled by the second DCI, and the ACK/NACK response is obtained based on a second DAI included in the second DCI.
13. The method of claim 10 , wherein a maximum number of serving cells supported by the BS is greater than 5.
14. The method of claim 10 , wherein the control information is obtained based on a semi-statically configured maximum number of downlink data which can be scheduled by each DCI for DL scheduling.
15. A non-transitory computer readable medium storing a program for performing the method of claim 10 .
16. A device for wireless communication, the device comprising:
a memory configured to store instructions; and
a processor configured to perform operations by executing the instructions, the operations comprising:
transmitting one or more physical downlink control channels (PDCCHs) each carrying downlink control information (DCI) including a downlink assignment index (DAI) related to downlink (DL) scheduling;
performing, in one or more serving cells, a transmission of each downlink data related to each of the one or more PDCCHs; and
receiving an acknowledgement/negative acknowledgement (ACK/NACK) response for the transmission of each downlink data,
wherein a value of the DAI denotes an accumulated number that is counted for each pair of {each serving cell related to each downlink data, each PDCCH transmission timing related to each DL scheduling}.
17. The device of claim 16 , further comprising:
a transceiver and
wherein the device is a base station (BS) configured to operate in a wireless communication system.
18. The device of claim 16 , wherein the device is an application specific integrated circuit (ASIC) or a digital signal processing device configured to control a base station (BS) in a wireless communication system.