Channel multiplexing method and multiplexed channel transmission method for wireless communication system and device using same

1. A user equipment (UE) of a wireless communication system, the UE comprising:

a communication module; and

a processor configured to control the communication module,

wherein the processor is configured:

to receive a radio resource control (RRC) signal including configuration information related to a monitoring period for an uplink (UL) preemption indicator;

to detect a common physical downlink control channel (PDCCH) including the UL preemption indicator by performing PDCCH monitoring at every monitoring period; and

based on a physical uplink shared channel (PUSCH) transmission being overlapped with at least one resource part indicated by the UL preemption indicator within a reference time-frequency resource, to cancel a portion of the PUSCH transmission based on the at least one resource part,

wherein a starting position of the reference time-frequency resource is determined based on an offset from an ending time of a corresponding PDCCH monitoring, and

wherein the offset is calculated based on a PUSCH processing time.

2. The UE of claim 1 , wherein the reference time-frequency resource excludes a downlink symbol configured according to a semi-static downlink (DL)/UL assignment.

3. The UE of claim 1 , wherein the PUSCH processing time is a minimum time required for the UE to receive a PDCCH for scheduling the PUSCH and to transmit the PUSCH.

4. The UE of claim 1 , wherein the UL preemption indicator includes a bitmap including N bits, and each of the N bits corresponds to a respective one of N resource parts within the reference time-frequency resource,

wherein each of one or more first resource parts among the N resource parts is configured to have P symbols, and each of remaining second resource parts among the N resource parts is configured to have Q symbols,

wherein P and Q are set so that a difference between P and Q is to be at most 1, and

wherein N, P and Q are natural numbers.

5. A method for operating a user equipment (UE) of a wireless communication system, the method comprising:

receiving a radio resource control (RRC) signal including configuration information related to a monitoring period for an uplink (UL) preemption indicator;

detecting a common physical downlink control channel (PDCCH) including the UL preemption indicator by performing PDCCH monitoring at every monitoring period; and

based on a physical uplink shared channel (PUSCH) transmission being overlapped with at least one resource part indicated by the UL preemption indicator within a reference time-frequency resource, canceling a portion of the PUSCH transmission based on the at least one resource part,

wherein a starting position of the reference time-frequency resource is determined based on an offset from an ending time of a corresponding PDCCH monitoring, and

wherein the offset is calculated based on a PUSCH processing time.

6. The method of claim 5 , wherein the reference time-frequency resource excludes include a downlink symbol configured according to a semi-static downlink (DL)/UL assignment.

7. The method of claim 5 , wherein the PUSCH processing time is a minimum time required for the UE to receive a PDCCH for scheduling the PUSCH and to transmit the PUSCH.

8. The method of claim 5 , wherein the UL preemption indicator includes a bitmap including N bits, and each of the N bits corresponds to a respective one of N resource parts within the reference time-frequency resource,

wherein each of one or more first resource parts among the N resource parts is configured to have P symbols, and each of remaining second resource parts among the N resource parts is configured to have Q symbols,

wherein P and Q are set so that a difference between P and Q is to be at most 1, and

wherein N, P and Q are natural numbers.

9. The UE of claim 1 , wherein the UL preemption indicator includes a bitmap including N bits, and each of the N bits corresponds to a respective one of N resource parts within the reference time-frequency resource,

wherein each of mod (S, N) resource parts among the N resource parts includes ceil (S/N) symbols, and each of N-mod (S, N) resource parts among the N resource parts includes floor (S/N) symbols, and

wherein S is a number of symbols within the reference time-frequency resource, N is a natural number, mod ( ) represents a modulo function, ceil ( ) represents a ceiling function, and floor ( ) represents a flooring function.

10. The method of claim 5 , wherein the UL preemption indicator includes a bitmap including N bits, and each of the N bits corresponds to a respective one of N resource parts within the reference time-frequency resource,

wherein each of mod (S, N) resource parts among the N resource parts includes ceil (S/N) symbols, and each of N-mod (S, N) resource parts among the N resource parts includes floor (S/N) symbols, and

wherein S is a number of symbols within the reference time-frequency resource, N is a natural number, mod ( ) represents a modulo function, ceil ( ) represents a ceiling function, and floor ( ) represents a flooring function.

11. A base station (BS) of a wireless communication system, the BS comprising:

a communication module; and

a processor configured to control the communication module,

wherein the processor is configured:

to transmit a radio resource control (RRC) signal including configuration information related to a monitoring period for an uplink (UL) preemption indicator;

to transmit a common physical downlink control channel (PDCCH) including the UL preemption indicator during a time duration of PDCCH monitoring at a corresponding monitoring period; and

based on a physical uplink shared channel (PUSCH) reception being overlapped with at least one resource part indicated by the UL preemption indicator within a reference time-frequency resource, to disregard a portion of the PUSCH reception based on the at least one resource part,

wherein a starting position of the reference time-frequency resource is determined based on an offset from an ending time of the PDCCH monitoring, and

wherein the offset is calculated based on a PUSCH processing time.

12. The BS of claim 11 , wherein the reference time-frequency resource excludes a downlink symbol configured according to a semi-static downlink (DL)/UL assignment.

13. The BS of claim 11 , wherein the PUSCH processing time is a minimum time required for a user equipment (UE) to receive a PDCCH for scheduling the PUSCH and to transmit the PUSCH.

14. The BS of claim 11 , wherein the UL preemption indicator includes a bitmap including N bits, and each of the N bits corresponds to a respective one of N resource parts within the reference time-frequency resource,

wherein each of one or more first resource parts among the N resource parts is configured to have P symbols, and each of remaining second resource parts among the N resource parts is configured to have Q symbols,

wherein P and Q are set so that a difference between P and Q is to be at most 1, and

wherein N, P and Q are natural numbers.

15. The BS of claim 11 , wherein the UL preemption indicator includes a bitmap including N bits, and each of the N bits corresponds to a respective one of N resource parts within the reference time-frequency resource,

wherein each of mod (S, N) resource parts among the N resource parts includes ceil (S/N) symbols, and each of N-mod (S, N) resource parts among the N resource parts includes floor (S/N) symbols, and

wherein S is a number of symbols within the reference time-frequency resource, N is a natural number, mod ( ) represents a modulo function, ceil ( ) represents a ceiling function, and floor ( ) represents a flooring function.

16. A method for operating a base station (BS) of a wireless communication system, the method comprising:

transmitting a radio resource control (RRC) signal including configuration information related to a monitoring period for an uplink (UL) preemption indicator;

transmitting a common physical downlink control channel (PDCCH) including the UL preemption indicator during a time duration of PDCCH monitoring at a corresponding monitoring period; and

based on a physical uplink shared channel (PUSCH) reception being overlapped with at least one resource part indicated by the UL preemption indicator within a reference time-frequency resource, disregarding a portion of the PUSCH reception based on the at least one resource part,

wherein a starting position of the reference time-frequency resource is determined based on an offset from an ending time of the PDCCH monitoring, and

wherein the offset is calculated based on a PUSCH processing time.

17. The method of claim 16 , wherein the reference time-frequency resource excludes a downlink symbol configured according to a semi-static downlink (DL)/UL assignment.

18. The method of claim 16 , wherein the PUSCH processing time is a minimum time required for a user equipment (UE) to receive a PDCCH for scheduling the PUSCH and to transmit the PUSCH.

19. The method of claim 16 , wherein the UL preemption indicator includes a bitmap including N bits, and each of the N bits corresponds to a respective one of N resource parts within the reference time-frequency resource,

wherein each of one or more first resource parts among the N resource parts is configured to have P symbols, and each of remaining second resource parts among the N resource parts is configured to have Q symbols,

wherein P and Q are set so that a difference between P and Q is to be at most 1, and

wherein N, P and Q are natural numbers.

20. The method of claim 16 , wherein the UL preemption indicator includes a bitmap including N bits, and each of the N bits corresponds to a respective one of N resource parts within the reference time-frequency resource,

wherein each of mod (S, N) resource parts among the N resource parts includes ceil (S/N) symbols, and each of N-mod (S, N) resource parts among the N resource parts includes floor (S/N) symbols, and

wherein S is a number of symbols within the reference time-frequency resource, N is a natural number, mod ( ) represents a modulo function, ceil ( ) represents a ceiling function, and floor ( ) represents a flooring function.