User equipment and method for scheduling timeline for cancelling uplink transmission
A user equipment and a method for scheduling a timeline for cancelling uplink (UL) transmission are provided. The method includes: transmitting a low priority UL channel scheduled by a first downlink control information (DCI) format; receiving a second DCI format scheduling a high priority UL channel; and cancelling transmission of the low priority UL channel and transmitting the high priority UL channel in response to determining that the high priority UL channel overlaps in time with the low priority UL channel, wherein a starting time of the high priority UL channel and an ending time of the second DCI format are separated by an offset greater than an absolute time duration.
1. A method performed by a user equipment (UE) for scheduling a timeline for cancelling uplink (UL) transmission, the method comprising:
transmitting a low priority UL channel scheduled by a first downlink control information (DCI) format;
receiving a second DCI format scheduling a high priority UL channel; and
cancelling transmission of the low priority UL channel and transmitting the high priority UL channel in response to determining that the high priority UL channel overlaps in time with the low priority UL channel,
wherein a starting time of the high priority UL channel and an ending time of the second DCI format are separated by an offset greater than an absolute time duration.
2. The method of claim 1 , wherein:
the absolute time duration includes a first absolute time duration and a second absolute time duration, and
the first absolute time duration is determined based on a radio resource control (RRC) configuration and the second absolute time duration is determined based on UE capability information.
3. The method of claim 2 , wherein the UE capability information includes a number of symbols, and the second absolute time duration is a length of the number of symbols with a smallest subcarrier spacing (SCS) among an SCS of the first DCI format, an SCS of the second DCI format, an SCS of the low priority UL channel, and an SCS of the high priority UL channel.
4. The method of claim 2 , wherein:
the high priority UL channel is a physical uplink shared channel (PUSCH),
the first absolute time duration is determined based on a first type of the processing time of the PUSCH if the RRC configuration includes a configuration of the first type of the processing time of the PUSCH for a first serving cell of the high priority UL channel, and a configuration of the first type of the processing time of a physical downlink shared channel (PDSCH) for a second serving cell of the low priority UL channel,
the first type of the processing time of the PUSCH is UE processing capability 2 of the PUSCH, and
the first type of the processing time of the PDSCH is UE processing capability 2 of the PDSCH.
5. The method of claim 2 , wherein:
the high priority UL channel is a physical uplink control channel (PUCCH),
the first absolute time duration is determined based on a first type of a processing time of a physical uplink shared channel (PUSCH) if the RRC configuration includes a configuration of a first type of the processing time of a physical downlink shared channel (PDSCH) for a first serving cell of the high priority UL channel, and a configuration of the first type of the processing time of the PDSCH for a second serving cell of the low priority UL channel or the first type of the processing time of the PUSCH for a third serving cell of the low priority UL channel,
the first type of the processing time of the PUSCH is UE processing capability 2 of the PUSCH, and
the first type of the processing time of the PDSCH is UE processing capability 2 of the PDSCH.
6. A user equipment (UE) for scheduling a timeline for cancelling uplink (UL) transmission, the UE comprising:
one or more non-transitory computer-readable media having computer-executable instructions embodied thereon; and
at least one processor coupled to the one or more non-transitory computer-readable media, the at least one processor is configured to execute the computer-executable instructions to:
transmit a low priority UL channel scheduled by a first downlink control information (DCI) format;
receive a second DCI format scheduling a high priority UL channel; and
cancel transmission of the low priority UL channel and transmit the high priority UL channel in response to determining that the high priority UL channel overlaps in time with the low priority UL channel,
wherein a starting time of the high priority UL channel and an ending time of the second DCI format are separated by an offset greater than an absolute time duration.
7. The UE of claim 6 , wherein:
the absolute time duration includes a first absolute time duration and a second absolute time duration, and
the first absolute time duration is determined based on a radio resource control (RRC) configuration and the second absolute time duration is determined based on UE capability information.
8. The UE of claim 7 , wherein the UE capability information includes a number of symbols, and the second absolute time duration is a length of the number of symbols with a smallest subcarrier spacing (SCS) among an SCS of the first DCI format, an SCS of the second DCI format, an SCS of the low priority UL channel, and an SCS of the high priority UL channel.
9. The UE of claim 7 , wherein:
the high priority UL channel is a physical uplink shared channel (PUSCH),
the first absolute time duration is determined based on a first type of the processing time of the PUSCH if the RRC configuration includes a configuration of the first type of the processing time of the PUSCH for a first serving cell of the high priority UL channel, and a configuration of the first type of the processing time of a physical downlink shared channel (PDSCH) for a second serving cell of the low priority UL channel,
the first type of the processing time of the PUSCH is UE processing capability 2 of the PUSCH, and
the first type of the processing time of the PDSCH is UE processing capability 2 of the PDSCH.
10. The UE of claim 7 , wherein:
the high priority UL channel is a physical uplink control channel (PUCCH),
the first absolute time duration is determined based on a first type of a processing time of a physical uplink shared channel (PUSCH) if the RRC configuration includes a configuration of a first type of the processing time of a physical downlink shared channel (PDSCH) for a first serving cell of the high priority UL channel, and a configuration of the first type of the processing time of the PDSCH for a second serving cell of the low priority UL channel or the first type of the processing time of the PUSCH for a third serving cell of the low priority UL channel,
the first type of the processing time of the PUSCH is UE processing capability 2 of the PUSCH, and
the first type of the processing time of the PDSCH is UE processing capability 2 of the PDSCH.
11. A method performed by a base station for scheduling a timeline for cancelling uplink (UL) transmission, the method comprising:
receiving a low priority UL channel scheduled by a first downlink control information (DCI) format;
transmitting a second DCI format scheduling a high priority UL channel; and
receiving the high priority UL channel, after transmission of the low priority UL channel is canceled and the high priority UL channel is transmitted in response to determining that the high priority UL channel overlaps in time with the low priority UL channel,
wherein a starting time of the high priority UL channel and an ending time of the second DCI format are separated by an offset greater than an absolute time duration.
12. The method of claim 11 , wherein:
the absolute time duration includes a first absolute time duration and a second absolute time duration, and
the first absolute time duration is determined based on a radio resource control (RRC) configuration and the second absolute time duration is determined based on UE capability information.
13. The method of claim 12 , wherein the UE capability information includes a number of symbols, and the second absolute time duration is a length of the number of symbols with a smallest subcarrier spacing (SCS) among an SCS of the first DCI format, an SCS of the second DCI format, an SCS of the low priority UL channel, and an SCS of the high priority UL channel.
14. The method of claim 12 , wherein:
the high priority UL channel is a physical uplink shared channel (PUSCH),
the first absolute time duration is determined based on a first type of the processing time of the PUSCH if the RRC configuration includes a configuration of the first type of the processing time of the PUSCH for a first serving cell of the high priority UL channel, and a configuration of the first type of the processing time of a physical downlink shared channel (PDSCH) for a second serving cell of the low priority UL channel,
the first type of the processing time of the PUSCH is UE processing capability 2 of the PUSCH,
the first type of the processing time of the PDSCH is UE processing capability 2 of the PDSCH.
15. The method of claim 12 , wherein:
the high priority UL channel is a physical uplink control channel (PUCCH),
the first absolute time duration is determined based on a first type of a processing time of a physical uplink shared channel (PUSCH) if the RRC configuration includes a configuration of a first type of the processing time of a physical downlink shared channel (PDSCH) for a first serving cell of the high priority UL channel, and a configuration of the first type of the processing time of the PDSCH for a second serving cell of the low priority UL channel or the first type of the processing time of the PUSCH for a third serving cell of the low priority UL channel,
the first type of the processing time of the PUSCH is UE processing capability 2 of the PUSCH, and
the first type of the processing time of the PDSCH is UE processing capability 2 of the PDSCH.