Method, device, and system for transmitting or receiving physical uplink shared channel (PUSCH) in wireless communication system
View Patent ↗There is disclosed a method for transmitting a physical uplink shared channel (PUSCH) to a base station by a user equipment in a wireless communication system. The user equipment may receive a first physical downlink control channel (PDCCH) including first downlink control information (DCI) from the base station, and release the activated configuration for repetitive transmission of the PUSCH based on the received DCI.
1. A method performed by a user equipment in a wireless communication system, the method comprising:
receiving a physical downlink control channel (PDCCH) including downlink control information (DCI) format from a base station,
wherein the DCI format includes a frequency domain resource assignment (FDRA) field, a modulation and coding scheme (MCS) field, and a redundancy version (RV) field,
wherein, when multiple semi-persistent scheduling physical downlink shared channel (SPS PDSCH) configurations are provided, the use of the DCI format to release some or all of the multiple SPS PDSCH configurations is determined based on a value of the FDRA field according to a FDRA type; and
releasing the some or all of the multiple SPS PDSCH configurations based on the DCI format when the multiple SPS PDSCH configurations are provided and the DCI format is used to release the some or all of the multiple SPS PDSCH configurations;
wherein the use of the DCI format to release the some or all of the multiple SPS PDSCH configurations is determined depending on whether all bits of the FDRA field are set to ‘0’ when a dynamic switch is configured in which the FDRA type is determined according to a value of a most significant bit (MSB) of the FDRA field.
2. The method of claim 1 ,
wherein the DCI format is used to release the some or all of the multiple SPS PDSCH configurations depending on whether all bits of the FDRA field are set to ‘0’ when the FDRA type is a bitmap-based resource allocation type.
3. The method of claim 2 ,
wherein a resource allocation scheme for the user equipment is a scheme indicating whether to allocate a resource block group (RBG) using a bitmap when the FDRA type is the bitmap-based resource allocation type.
4. The method of claim 1 ,
wherein the DCI format is used to release the some or all of the multiple SPS PDSCH configurations depending on whether all bits of the FDRA field are set to ‘1’ when the FDRA type is a resource indicator value (RIV)-based resource allocation type.
5. The method of claim 4 ,
wherein a resource allocation scheme for the user equipment is a scheme indicating a start and a length of an allocated resource block (RB) set when the FDRA type is the RIV-based resource allocation type.
6. The method of claim 1 ,
wherein the use of the DCI format to release the some or all of the multiple SPS PDSCH configurations is determined by further considering the MCS field and the RV field.
7. The method of claim 1 ,
wherein the DCI format further includes a hybrid automatic repeat request (HARQ) process number field,
wherein the HARQ process number field is considered to determine whether the DCI format is used to release a single SPS PDSCH configuration when the single SPS PDSCH configuration is provided, and
wherein the HARQ process number field is not considered to determine whether the DCI format is used to release the some or all of the multiple SPS PDSCH configurations when the multiple SPS PDSCH configurations are provided.
8. A user equipment configured to operate in a wireless communication system, the user equipment comprising:
a communication module; and
a processor controlling the communication module, wherein the processor is configured to:
receive a physical downlink control channel (PDCCH) including downlink control information (DCI) format from a base station,
wherein the DCI format includes a frequency domain resource assignment (FDRA) field, a modulation and coding scheme (MCS) field, and a redundancy version (RV) field,
wherein, when multiple semi-persistent scheduling physical downlink shared channel (SPS PDSCH) configurations are provided, the use of the DCI format to release some or all of the multiple SPS PDSCH configurations is determined based on a value of the FDRA field according to a FDRA type; and
release the some or all of the multiple SPS PDSCH configurations based on the DCI format when the multiple SPS PDSCH configurations are provided and the DCI format is used to release the some or all of the multiple SPS PDSCH configurations;
wherein the use of the DCI format to release the some or all of the multiple SPS PDSCH configurations is determined depending on whether all bits of the FDRA field are set to ‘0’ when a dynamic switch is configured in which the FDRA type is determined according to a value of a most significant bit (MSB) of the FDRA field.
9. The user equipment of claim 8 ,
wherein the DCI format is used to release the some or all of the multiple SPS PDSCH configurations depending on whether all bits of the FDRA field are set to ‘0’ when the FDRA type is a bitmap-based resource allocation type.
10. The user equipment of claim 9 ,
wherein a resource allocation scheme for the user equipment is a scheme indicating whether to allocate a resource block group (RBG) using a bit map when the FDRA type is the bitmap-based resource allocation type.
11. The user equipment of claim 8 ,
wherein the DCI format is used to release the some or all of the multiple SPS PDSCH configurations depending on whether all bits of the FDRA field are set to ‘1’ when the FDRA type is a resource indicator value (RIV)-based resource allocation type.
12. The user equipment of claim 9 ,
wherein a resource allocation scheme for the user equipment is a scheme indicating a start and a length of an allocated resource block (RB) set when the FDRA type is the RIV-based resource allocation type.
13. The user equipment of claim 8 ,
wherein the use of the DCI format to release the some or all of the multiple SPS PDSCH configurations is determined by further considering the MCS field and the RV field.
14. The user equipment of claim 8 ,
wherein the DCI format further includes a hybrid automatic repeat request (HARQ) process number field,
wherein the HARQ process number field is considered to determine whether the DCI format is used to release a single SPS PDSCH configuration when the single SPS PDSCH configuration is provided, and
wherein the HARQ process number field is not considered to determine whether the DCI format is used to release the some or all of the multiple SPS PDSCH configurations when the multiple SPS PDSCH configurations are configured provided.