Data transmission method for ultra low-latency, highly-reliable communication in wireless communication system, and device therefor
Provided are a data transmission method for ultra low-latency, highly-reliable communication in a wireless communication system, and a device therefor. A method for transmitting data in a wireless communication system comprises the steps of: receiving, from a base station, information relating to the number of repeated transmissions with respect to uplink data; configuring a plurality of physical uplink shared channels (PUSCH) corresponding to the number of repeated transmissions, wherein the uplink data is likewise mapped to the plurality of PUSCH; and sequentially transmitting the plurality of PUSCH in a single slot, wherein the plurality of PUSCH comprises a first PUSCH and a second PUSCH, and a first frequency resource for the transmission of the first PUSCH and a second frequency resource for the transmission of the second PUSCH can be changed so as to differ from one another in the single slot.
1. A method of transmitting data in a wireless communication system, the method comprising:
receiving, from a base station, information regarding a number of repeated transmission of physical uplink shared channel (PUSCH) for uplink data;
transmitting a plurality of PUSCHs corresponding to the number of repeated transmission of the PUSCH for uplink data within one slot, wherein the plurality of PUSCHs include a first PUSCH and a second PUSCH; and
receiving, from the base station, hybrid automatic retransmission request-acknowledge (HARQ-ACK) for any one of the first PUSCH and the second PUSCH,
wherein frequency hopping is applied to each transmission of the first PUSCH transmission and the second PUSCH transmission,
wherein the repeated transmission of the PUSCH includes a case where the repeated transmission of the PUSCH is performed based on an uplink grant and a case where the repeated transmission of the PUSCH is performed without the uplink grant, and
wherein a signaling which indicates a format regarding the repeated transmission of the PUSCH is different according to whether the uplink grant is present or not.
2. The method of claim 1 , further comprising;
receiving information on a configuration for activating or deactivating the repeated transmission of the PUSCH from the base station.
3. The method of claim 1 , wherein the information on the repeated transmission number of the PUSCH is generated based on a channel quality indicator (CQI) report received from the user equipment.
4. The method of claim 1 , wherein:
the information on the repeated transmission number of the PUSCH is included in downlink control information (DCI) received from the base station, and the DCI comprises information on a plurality of modulation and coding schemes (MCSs), the information on the plurality of MCSs includes information on MCS applied to the first PUSCH and information on an MCS applied to the second PUSCH.
5. The method of claim 4 , wherein an MCS having a level higher than that of the first PUSCH is applied to the second PUSCH.
6. A method of receiving data in a wireless communication system, the method comprising:
transmitting, from a user equipment, information regarding a number of repeated transmission of physical uplink shared channel (PUSCH) for uplink data;
receiving a plurality of PUSCHs corresponding to the number of repeated transmission of the PUSCH for uplink data within one slot, wherein the plurality of PUSCHs include a first PUSCH and a second PUSCH, and
transmitting, from the user equipment, hybrid automatic retransmission request-acknowledge (HARQ-ACK) for any one of the first PUSCH and the second PUSCH,
wherein frequency hopping is applied to each transmission of the first PUSCH transmission and the second PUSCH transmission,
wherein the repeated transmission of the PUSCH includes a case where the repeated transmission of the PUSCH is performed based on an uplink grant and a case where the repeated transmission of the PUSCH is performed without the uplink grant, and
wherein a signaling which indicates a format regarding the repeated transmission of the PUSCH is different according to whether the uplink grant is present or not.
7. The method of claim 6 , further comprising;
transmitting information on a configuration for activating or deactivating the repeated transmission of the PUSCH from the user equipment.
8. The method of claim 6 , wherein the information on the repeated transmission number of the PUSCH is generated based on a channel quality indicator (CQI) report received from the user equipment.
9. The method of claim 6 , wherein:
the information on the repeated transmission number of the PUSCH is included in downlink control information (DCI) received from the base station, and the DCI comprises information on a plurality of modulation and coding schemes (MCSs), the information on the plurality of MCSs includes information on MCS applied to the first PUSCH and information on an MCS applied to the second PUSCH.
10. The method of claim 9 , wherein an MCS having a level higher than that of the first PUSCH is applied to the second PUSCH.
11. A communication device, comprising:
a memory; and
a processor operably coupled to the memory,
where the processor is configured to:
cause the device to receive, from a base station, information regarding a number of repeated transmission of physical uplink shared channel (PUSCH) for uplink data;
cause the device to transmit a plurality of PUSCHs corresponding to the number of repeated transmission of the PUSCH for uplink data within one slot, wherein the plurality of PUSCHs include a first PUSCH and a second PUSCH; and
cause the device to receive, from the base station, hybrid automatic retransmission request-acknowledge (HARQ-ACK) for any one of the first PUSCH and the second PUSCH,
wherein frequency hopping is applied to each transmission of the first PUSCH transmission and the second PUSCH transmission,
wherein the repeated transmission of the PUSCH includes a case where the repeated transmission of the PUSCH is performed based on an uplink grant and a case where the repeated transmission of the PUSCH is performed without the uplink grant, and
wherein a signaling which indicates a format regarding the repeated transmission of the PUSCH is different according to whether the uplink grant is present or not.
12. The communication device of claim 11 , further comprising:
cause the device to receive information on a configuration for activating or deactivating the repeated transmission of the PUSCH from the base station.
13. The communication device of claim 11 , wherein the information on the repeated transmission number of the PUSCH is generated based on a channel quality indicator (CQI) report received from the user equipment.
14. The communication device of claim 11 , wherein:
the information on the repeated transmission number of the PUSCH is included in downlink control information (DCI) received from the base station, and the DCI comprises information on a plurality of modulation and coding schemes (MCSs), the information on the plurality of MCSs includes information on MCS applied to the first PUSCH and information on an MCS applied to the second PUSCH.
15. The communication device of claim 14 , wherein an MCS having a level higher than that of the first PUSCH is applied to the second PUSCH.