Method and device for transmission or reception of signal for multiple transport block scheduling
The present invention relates to a method performed in a wireless communication system supporting multiple transport block scheduling, and a device therefor, the method comprising: receiving downlink control information (DCI) for scheduling of one or more transport blocks; on the basis of the number of the transport blocks to be scheduled, which is one, acquiring 2-bit information for a redundancy version of one transport block and 1-bit information for frequency hopping indication of the one transport block, from the DCI; and on the basis of the number of the transport blocks to be scheduled, which is two, acquiring 2-bit information for frequency hopping indication and a redundancy version of two transport blocks, from the DCI.
1. A method performed by a user equipment (UE) in a wireless communication system supporting multiple transport block scheduling, the method comprising:
receiving downlink control information (DCI) for scheduling one or more transport blocks, the DCI including first information regarding a number of the scheduled one or more transport blocks and second information regarding a repetition number of each transport block; and
obtaining information from the DCI based on the number of the scheduled one or more transport blocks,
wherein obtaining the information from the DCI comprises:
based on the number of the scheduled one or more transport blocks being a first number, obtaining first redundancy version (RV) information from 2-bit of the DCI;
based on the number of the scheduled one or more transport blocks being a second number different from the first number and the repetition number not exceeding a threshold, obtaining second RV information from a specific 1-bit of the DCI; and
based on the number of the scheduled one or more transport blocks being the second number and the repetition number exceeding the threshold, (i) obtaining frequency hopping information instead of the second RV information from the specific 1-bit of the DCI and (ii) determining that all the second number of the scheduled one or more transport blocks are related to RV 0 .
2. The method according to claim 1 , wherein the second RV information indicates a redundancy version of 0 or 2.
3. The method according to claim 1 , wherein the first RV information indicates one of redundancy versions of 0, 1, 2, and 3.
4. The method according to claim 1 , wherein the DCI includes new data indicator (NDI) information having a same number of bits as the number of the scheduled one or more transport blocks.
5. The method according to claim 1 , further comprising:
transmitting the one or more transport blocks on a physical uplink shared channel (PUSCH) based on the DCI.
6. The method according to claim 1 , further comprising:
receiving the one or more transport blocks on a physical downlink shared channel (PDSCH) based on the DCI.
7. The method according to claim 6 , wherein the UE is not configured to use 64-quadrature amplitude modulation (64QAM).
8. The method according to claim 1 , wherein the DCI is configured to schedule up to 8 transport blocks.
9. The method according to claim 1 , further comprising:
receiving a higher-layer signal indicating a maximum number of transport blocks scheduled by one DCI.
10. A device configured to perform wireless communication system, the device comprising:
a memory configured to store instructions; and
a processor configured to execute the instructions to perform operations comprising:
receiving downlink control information (DCI) for scheduling one or more transport blocks, the DCI including first information regarding a number of the scheduled one or more transport blocks and second information regarding a repetition number of each transport block; and
obtaining information from the DCI based on the number of the scheduled one or more transport blocks,
wherein obtaining the information from the DCI comprises:
based on the number of the scheduled one or more transport blocks being a first number, obtaining first redundancy version (RV) information from 2-bit of the DCI;
based on the number of the scheduled one or more transport blocks being a second number different from the first number and the repetition number not exceeding a threshold, obtaining second RV information from a specific 1-bit of the DCI; and
based on the number of the scheduled one or more transport blocks being the second number and the repetition number exceeding the threshold, (i) obtaining frequency hopping information instead of the second RV information from the specific 1-bit of the DCI and (ii) determining that all the second number of the scheduled one or more transport blocks are related to RV 0 .
11. A non-transitory medium readable by a processor and storing instructions which, when executed by the processor, are configured to cause the processor to perform the method according to claim 1 .
12. The device according to claim 10 , further comprising:
a transceiver configured to transmit or receive a wireless signal under control of the processor.
13. The device according to claim 10 , wherein the device is a user equipment (UE) configured to operate in a wireless communication system.
14. The device according to claim 10 , wherein the device is application specific integrated circuit (ASIC) or a digital signal processing device.
15. A method performed by a base station (BS) in a wireless communication system supporting multiple transport block scheduling, the method comprising:
generating downlink control information (DCI) for scheduling one or more transport blocks, the DCI including first information regarding a number of the scheduled one or more transport blocks and second information regarding a repetition number of each transport block; and
transmitting the DCI to a user equipment (UE),
wherein generating the DCI comprises:
based on the number of the scheduled one or more transport blocks being a first number, setting first redundancy version (RV) information to 2-bit of the DCI;
based on the number of the scheduled one or more transport blocks being a second number different from the first number and the repetition number not exceeding a threshold, setting second RV information to a specific 1-bit of the DCI; and
based on the number of the scheduled one or more transport blocks being the second number and the repetition number exceeding the threshold, setting frequency hopping information instead of the second RV information to the specific 1-bit of the DCI, wherein all the second number of the scheduled one or more transport blocks are related to RV 0 .
16. A device configured to operate in a wireless communication system, the device comprising:
a memory configured to store instructions; and
a processor configured to execute the instructions to perform operations comprising:
generating downlink control information (DCI) for scheduling one or more transport blocks, the DCI including first information regarding a number of the scheduled one or more transport blocks and second information regarding a repetition number of each transport block; and
transmitting the DCI to a user equipment (UE),
wherein generating the DCI comprises:
based on the number of the scheduled one or more transport blocks being a first number, setting first redundancy version (RV) information to 2-bit of the DCI;
based on the number of the scheduled one or more transport blocks being a second number different from the first number and the repetition number not exceeding a threshold, setting second RV information to a specific 1-bit of the DCI; and
based on the number of the scheduled one or more transport blocks being the second number and the repetition number exceeding the threshold, setting frequency hopping information instead of the second RV information to the specific 1-bit of the DCI, wherein all the second number of the scheduled one or more transport blocks are related to RV 0 .