Method and device for transmitting data
The present application provides a method for transmitting data, which includes the following. A UE detects a physical downlink control channel, PDCCH, on a configured control resource set; the UE analyzes the detected PDCCH, and determines a method for dividing code blocks, CBs, and a method for rate matching of a physical downlink shared channel, PDSCH, and receives the PDSCH accordingly. By the method of the present application, when a service with a low delay requirement punches the time-frequency resources of other services, a performance of the other services is improved as much as possible, and the resource utilization rate is improved as much as possible.
1. A method of a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a base station, a physical downlink shared channel (PDSCH) based on a physical downlink control channel (PDCCH) including a downlink control information (DCI) format;
generating hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the PDSCH based on whether the DCI format is a first DCI format supporting code block group (CBG) or a second DCI format for fallback; and
transmitting the HARQ-ACK information to the base station,
wherein the generating of the HARQ-ACK information for the PDSCH comprises:
in case that the DCI format is the first DCI format supporting CBG, generating a HARQ-ACK information bit per (CBG, and
in case that the DCI format is the second DCI format for fallback, generating a HARQ-ACK information bit per transport block.
2. The method of claim 1 ,
wherein the PDSCH includes M CBGs per transport block, and
wherein C code blocks in the transport block are grouped to the M CBGs.
3. The method of claim 2 , wherein the generating of the HARQ-ACK information for the PDSCH comprises, in case that the DCI format is the first DCI format supporting CBG, generating M HARQ-ACK information bits per transport block.
4. The method of claim 2 , further comprising:
receiving, from the base station, a higher layer signaling including information of a maximum number of CBGs per transport block; and
determining the M CBGs per transport block based on the information of the maximum number of CBGs per transport block.
5. A method of a base station in a wireless communication system, the method comprising:
transmitting, to a user equipment (UE), a physical downlink shared channel (PDSCH) based on a physical downlink control channel (PDCCH) including a downlink control information (DCI) format; and
receiving hybrid automatic request acknowledgement (HARQ-ACK) information for the PDSCH from the UE,
wherein the HARQ-ACK information for the PDSCH is generated based on whether the DCI format is a first DCI format supporting code block group (CBG) or a second DCI format for fallback,
wherein in case that the DCI format is the first DCI format supporting CBG, the HARQ-ACK information includes a HARQ-ACK information bit per CBG, and
wherein in case that the DCI format is the second DCI format for fallback, the HARQ-ACK information includes a HARQ-ACK information bit per transport block.
6. The method of claim 5 ,
wherein the PDSCH includes CBGs per transport block, and
wherein C code blocks in the transport block are grouped to the M CBGs.
7. The method of claim 6 , wherein in case that the DCI format is the first DCI format supporting CBG, the HARQ-ACK information includes M HARQ-ACK information bits per transport block.
8. The method of claim 6 , further comprising:
transmitting, to the UE, a higher layer signaling including information of a maximum number of CBGs per transport block,
wherein the M CBGs per transport block is determined based on the information of the maximum number of CBGs per transport block.
9. A user equipment (UE) in a wireless communication system, the UE comprising:
a transceiver; and
at least one processor configured to:
receive, from a base station, a physical downlink shared channel (PDSCH) based on a physical downlink control channel (PDCCH) including a downlink control information (DCI) form;
generate hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the PDSCH based on whether the DCI format is a first DCI format supporting code block group (CBG) or a second DCI format for fallback; and
transmit the HARQ-ACK information to the base station,
wherein the at least one processor is further configured to generate the HARQ-ACK information by:
in case that the DCI format is the first DCI format supporting CBG, generating a HARQ-ACK information bit per CBG, and
in case that the DCI format is the second DCI format for fallback, generating a HARQ-ACK information bit per transport block.
10. The UE of claim 9 ,
wherein the PDSCH includes M CBGs per transport block, and
wherein C code blocks in the transport block are grouped to the M CBGs.
11. The UE of claim 10 , wherein the at least one processor is further configured to in case that the DCI format is the first DCI format supporting CBG, generate M HARQ-ACK information bits per transport block.
12. The UE of claim 10 , wherein the at least one processor is further configured to:
receive, from the base station, a higher layer signaling including information of a maximum number of CBGs per transport block; and
determine the M CBGs per transport block based on the information of the maximum number of CBGs per transport block.
13. A base station in a wireless communication system, the base station comprising:
a transceiver; and
at least one processor configured to:
transmit, to a user equipment (UE), a physical downlink shared channel (PDSCH) based on a physical downlink control channel (PDCCH) including a downlink control information (DCI) format, and
receive hybrid automatic request acknowledgement (HARQ-ACK) information for the PDSCH from the UE,
wherein the HARQ-ACK information for the PDSCH is generated based on whether the DCI format is a first DCI format supporting code block group (CBG) or a second DCI format for fallback,
wherein in case that the DCI format is the first DCI format supporting CBG, the HARQ-ACK information includes a HARQ-ACK information bit per CBG, and
wherein in case that the DCI format is the second DCI format for fallback, the HARQ-ACK information includes a HARQ-ACK information bit per transport block.
14. The base station of claim 13 ,
wherein the PDSCH includes M CBGs per transport block, and
wherein C code blocks in the transport block are grouped to the M CBGs.
15. The base station of claim 14 , wherein in case that the DCI format is the first DCI format supporting CBG, the HARQ-ACK information includes M HARQ-ACK information bits per transport block.
16. The base station of claim 14 ,
wherein the at least one processor is further configured to transmit, to the UE, a higher layer signaling including information of a maximum number of CBGs per transport block, and
wherein the M CBGs per transport block is determined based on the information of the maximum number of CBGs per transport block.