Method for monitoring uplink cancellation instruction, user equipment, apparatus, computer-readable storage medium, method for transmitting uplink cancellation instruction, and base station
A UE may: receive a configuration regarding a physical downlink control channel (PDCCH) monitoring occasion (MO) for UL CI reception; receive scheduling information for UL transmission; and perform or skip UL CI monitoring for the UL transmission in the PDCCH MO on the basis of the configuration and the scheduling information. Performing or skipping the UL CI monitoring for the UL transmission in the PDCCH MO may comprise: performing the UL CI monitoring for the UL transmission in the PDCCH MO on the basis of the fact that the UL transmission and a reference resource region that may be instructed by a UL CI received in the PDCCH MO overlap at least in terms of time; and skipping the UL CI monitoring for the UL transmission in the PDCCH MO on the basis of the fact that the reference resource region and the UL transmission do not overlap in terms of time.
1. A method of performing uplink cancelation indication (UL CI) monitoring by a user equipment in a wireless communication system, the method comprising:
receiving a configuration regarding a UL CI, the configuration including information related to a physical downlink control channel (PDCCH) monitoring occasion (MO) for reception of the UL CI and information related to a reference resource region, wherein a part of the reference resource region is indicated by the UL CI;
receiving scheduling information for an uplink (UL) transmission;
based on the PDCCH MO being valid for the UL transmission, performing, in the PDCCH MO, UL CI monitoring for the UL transmission; and
based on detecting the UL CI in the PDCCH MO and based on the UL transmission including a resource that overlaps with a resource determined to be canceled based on the UL CI, canceling the UL transmission in the overlapping resource,
wherein the PDCCH MO is determined to be valid for the UL transmission, at least based on i) the reference resource region overlapping at least in time with the resource of the UL transmission and ii) the UL transmission being a transmission with a low priority.
2. The method according to claim 1 , wherein a first symbol of the reference resource region is a first symbol that is after a time gap X from an end of the PDCCH MO, where the time gap X is a minimum processing time for a physical uplink shared channel (PUSCH) of a subcarrier spacing (SCS) configuration of a downlink bandwidth part where the user equipment receives a PDCCH with the UL CI.
3. The method according to claim 1 , wherein the scheduling information is received prior to the reference resource region in a time domain.
4. The method according to claim 2 , wherein the time gap X is obtained from T_proc,2+d, where d is provided by a radio resource control (RRC) signaling, and T_proc,2 is a minimum processing time for PUSCH processing capability 2 with a smallest SCS configuration among SCSs provided in a system information block (SIB) and the SCS configuration of the downlink bandwidth part where the user equipment monitors a PDCCH for UL CI detection on a serving cell.
5. The method according to claim 1 , wherein canceling the UL transmission in the overlapping resource comprises:
based on a forepart of the UL transmission having a demodulation reference signal (DMRS) symbol not included in the overlapping resource, transmitting the forepart of the UL transmission.
6. A user equipment for performing uplink cancelation indication (UL CI) monitoring in a wireless communication system, the user equipment comprising:
at least one transceiver;
at least one processor; and
at least one computer memory operatively connectable to the at least one processor, and storing instructions that when executed causes the at least one processor to perform operations comprising:
receiving a configuration regarding a UL CI, the configuration including information related to a physical downlink control channel (PDCCH) monitoring occasion (MO) for reception of the UL CI and information related to a reference resource region,
wherein a part of the reference resource region is indicated by the UL CI;
receiving scheduling information for an uplink transmission (UL) transmission; and
based on the PDCCH MO being valid for the UL transmission, performing, in the PDCCH MO, UL CI monitoring for the UL transmission; and
based on detecting the UL CI in the PDCCH MO and based on the UL transmission including a resource that overlaps with a resource determined to be canceled based on the UL CI, canceling the UL transmission in the overlapping resource,
wherein the PDCCH MO is determined to be valid for the UL transmission, at least based on i) the reference resource region overlapping at least in time with the resource of the UL transmission and ii) the UL transmission being a transmission with a low priority.
7. The user equipment according to claim 6 , wherein a first symbol of the reference resource region is a first symbol that is after a time gap X from an end of the PDCCH MO, where the time gap X is a minimum processing time for a physical uplink shared channel (PUSCH) of a subcarrier spacing (SCS) configuration of a downlink bandwidth part where the user equipment receives a PDCCH with the UL CI.
8. The user equipment according to claim 7 , wherein the time gap X is obtained from T_proc,2+d, where d is provided by a radio resource control (RRC) signaling, and T_proc,2 is a minimum processing time for PUSCH processing capability 2 with a smallest SCS configuration among SCSs provided in a system information block (SIB) and the SCS configuration of the downlink bandwidth part where the user equipment monitors a PDCCH for UL CI detection on a serving cell.
9. The user equipment according to claim 6 , wherein the scheduling information is received prior to the reference resource region in a time domain.
10. The user equipment according to claim 6 , wherein canceling the UL transmission in the overlapping resource comprises:
based on a forepart of the UL transmission having a demodulation reference signal (DMRS) symbol not included in the overlapping resource, transmitting the forepart of the UL transmission.
11. A method of transmitting uplink cancelation indication (UL CI) by a base station in a wireless communication system, the method comprising:
transmitting a configuration regarding the UL CI, the configuration including information related to a physical downlink control channel (PDCCH) monitoring occasion (MO) for transmission of the UL CI and information related to a reference resource region,
wherein a part of the reference resource region is indicated by the UL CI;
transmitting scheduling information for an uplink (UL) transmission to a user equipment;
based on the PDCCH MO being valid for the UL transmission, performing, in the PDCCH MO, transmission of the UL CI for the UL transmission; and
based on transmitting the UL CI in the PDCCH MO and based on the UL transmission including a resource that overlaps with a resource to be canceled based on the UL CI, canceling a reception of the UL transmission in the overlapping resource,
wherein the PDCCH MO is determined to be valid for the UL transmission, at least based on i) the reference resource region overlapping at least in time with the resource of the UL transmission and ii) the UL transmission being a transmission with a low priority.
12. The method according to claim 11 , wherein a first symbol of the reference resource region is a first symbol that is after a time gap X from an end of the PDCCH MO, where the time gap X is a minimum processing time for a physical uplink shared channel (PUSCH) of a subcarrier spacing (SCS) configuration of a downlink bandwidth part where the user equipment receives a PDCCH with the UL CI.
13. The method according to claim 12 , wherein the time gap X is obtained from T_proc,2+d, where d is provided by a radio resource control (RRC) signaling, and T_proc,2 is a minimum processing time for PUSCH processing capability 2 with a smallest SCS configuration among SCSs provided in a system information block (SIB) and the SCS configuration of the downlink bandwidth part where the user equipment monitors a PDCCH for UL CI detection on a serving cell.
14. The method according to claim 11 , wherein the scheduling information is transmitted prior to the reference resource region in a time domain.
15. The method according to claim 11 , wherein canceling the reception of the UL transmission in the overlapping resource comprises:
based on a forepart of the UL transmission having a demodulation reference signal (DMRS) symbol not included in the overlapping resource, receiving the forepart of the UL transmission.