Method, user equipment, processing device, storage medium, and computer program for transmitting uplink channel, and method and base station for receiving uplink channel

A user equipment (UE) configured to transmit an uplink (UL) channel in a wireless communication system, the UE comprising:

• at least one transceiver;
• at least one processor;
• and
• at least one computer memory operably connected to the at least one processor and configured to store instructions that, when executed, cause the at least one processor to perform operations comprising:
• reporting UE capability information that includes i) information regarding a first additional number (d_1) of symbols needed for cancelling a lower priority UL transmission beyond a physical uplink shared channel (PUSCH) preparation time N_2, and ii) information regarding a second additional number (d_3) of symbols needed on top of N_2+d_1;
• detecting a downlink control information (DCI) format that schedules a transmission of a first uplink channel of larger priority;
• and
• for the transmission of the first uplink channel of larger priority that does not start before T after a last symbol of a physical downlink control channel (PDCCH) carrying the DCI format and based on a determination that the transmission of the first uplink channel of larger priority overlaps in time with a transmission of a second uplink channel of smaller priority,
• cancelling the transmission of the second uplink channel of smaller priority before an earliest symbol that overlaps the transmission of the first uplink channel of larger priority,
• wherein T is a preparation time related to cancellation for the second uplink channel of smaller priority,
• wherein T is determined based on d,
• wherein based on at least one of the first uplink channel of larger priority and the second uplink channel of smaller priority being a physical uplink control channel (PUCCH), d is equal to d_1, where d_1 is determined by the reported UE capability information, and
• wherein based on the first uplink channel of larger priority and the second uplink channel of smaller priority being a first PUSCH of larger priority and a second PUSCH of smaller priority, respectively, d is equal to d_1+d_3, where d_1 and d_3 are determined by the reported UE capability information.

A base station (BS) configured to receive an uplink (UL) channel from a user equipment (UE) in a wireless communication system, the BS comprising:

• at least one transceiver;
• at least one processor;
• and
• at least one computer memory operably connected to the at least one processor and configured to store instructions that, when executed, cause the at least one processor to perform operations comprising:
• receiving, from the UE, UE capability information that includes i) information regarding a first additional number (d_1) of symbols needed for cancelling a lower priority uplink (UL) transmission beyond a physical uplink shared channel (PUSCH) preparation time N_2, and ii) information regarding a second additional number (d_3) of symbols needed on top of N_2+d_1;
• transmitting, to the UE, a downlink control information (DCI) format that schedules a first uplink channel of larger priority;
• and
• for a reception of the first uplink channel of larger priority that does not start before T after a last symbol of a physical downlink control channel (PDCCH) carrying the DCI format and based on a determination that the reception of the first uplink channel of larger priority overlaps in time with a reception of a second uplink channel of smaller priority,
• cancelling the reception of the second uplink channel of smaller priority before an earliest symbol that overlaps the reception of the first uplink channel of larger priority,
• wherein T is a preparation time related to cancellation for the second uplink channel of smaller priority,
• wherein T is determined based on d,
• wherein based on at least one of the first uplink channel of larger priority and the second uplink channel of smaller priority being a physical uplink control channel (PUCCH), d is equal to d_1, where d_1 is determined by the received UE capability information, and
• wherein based on the first uplink channel of larger priority and the second uplink channel of smaller priority being a first PUSCH of larger priority and a second PUSCH of smaller priority, respectively, d is equal to d_1+d_3, where d_1 and d_3 are determined by the received UE capability information.