Method and apparatus for determining transmission timing in wireless communication system

1. A method for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK) information by a user equipment (UE) in a wireless communication system, the method comprising:

receiving a physical downlink control channel (PDCCH) including information for downlink semi-persistent scheduling (DL SPS) release from a base station; and

transmitting an uplink channel including HARQ-ACK information for the PDCCH including the information for DL SPS release to the base station,

wherein a first symbol of the uplink channel is transmitted at least after a processing time (T proc,3 ) from when a last symbol of the PDCCH is received,

wherein the processing time is determined based on a smaller subcarrier spacing value between a subcarrier spacing value of the PDCCH and a subcarrier spacing value of the uplink channel, and

wherein the subcarrier spacing value is a parameter (μ) indicating numerology associated with subcarrier spacing.

2. The method of claim 1 , wherein the uplink channel is a physical uplink shared channel (PUSCH) in which the HARQ-ACK information is multiplexed.

3. The method of claim 1 ,

wherein the processing time (T proc,3 ) is calculated based on T proc,3 =(N 3 +d 3 )·(2048+144)·κ·2 −μ ·T C ,

wherein d 3 is 1,

wherein μ is the smaller subcarrier spacing value between the subcarrier spacing value (μ PDCCH ) of the PDCCH and the subcarrier spacing value (μ UL ) of the uplink channel,

wherein N 3 is determined based on μ,

wherein T C is calculated based on T C =1/(Δf max ·N f ), in which Δf max is 480·10 3 Hz, and N f is 4096, and

wherein κ is κ=T s /T c =64, T s is 1/(Δf ref ·N f,ref ), Δf ref is 15·10 3 Hz, and N f,ref is 2048.

4. The method of claim 3 ,

wherein when μ is 0, N 3 is 10,

wherein when μ is 1, N 3 is 12,

wherein when μ is 2, N 3 is 22, and

wherein when μ is 3, N 3 is 25.

5. The method of claim 1 , wherein the first symbol of the uplink channel is transmitted not before a first symbol with a cyclic prefix (CP) starting after the processing time from when the last symbol of the PDCCH is received.

6. The method of claim 1 , wherein the PDCCH comprises downlink control information (DCI) including the information for DL SPS release.

7. The method of claim 1 , wherein the HARQ-ACK information comprises acknowledgement (ACK) information or negative acknowledgement (NACK) information of the PDCCH including the information for DL SPS release.

8. A user equipment (UE), the UE comprising:

a transceiver; and

at least one processor configured to:

control the transceiver to receive a physical downlink control channel (PDCCH) including information for downlink semi-persistent scheduling (DL SPS) release from a base station; and

control the transceiver to transmit an uplink channel including hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the PDCCH including the information for DL SPS release to the base station,

wherein a first symbol of the uplink channel is transmitted at least after a processing time (T proc,3 ) from when a last symbol of the PDCCH is received,

wherein the processing time is determined based on a smaller subcarrier spacing value between a subcarrier spacing value of the PDCCH and a subcarrier spacing value of the uplink channel, and

wherein the subcarrier spacing value is a parameter (μ) indicating numerology associated with subcarrier spacing.

9. The UE of claim 8 , wherein the uplink channel is a physical uplink shared channel (PUSCH) in which the HARQ-ACK information is multiplexed.

10. The UE of claim 8 ,

wherein the processing time (T proc,3 ) is calculated based on T proc,3 =(N 3 +d 3 )·(2048+144)·κ 19 2 −μ ·T C ,

wherein d 3 is 1,

wherein μ is the smaller subcarrier spacing value between the subcarrier spacing value (μ PDCCH ) of the PDCCH and the subcarrier spacing value (μ UL ) of the uplink channel,

wherein N 3 is determined based on μ,

wherein T C is calculated based on T C =1/(Δf max ·N f ), in which Δf max is 480·10 3 Hz, and N f is 4096, and

wherein κ is κ=T s /T c =64, T s is 1/(Δf ref ·N f,ref ), Δf ref is 15·10 3 Hz, and N f,ref is 2048.

11. The UE of claim 10 ,

wherein when μ is 0, N 3 is 10,

wherein when μ is 1, N 3 is 12,

wherein when μ is 2, N 3 is 22, and

wherein when μ is 3, N 3 is 25.

12. The UE of claim 8 , wherein the first symbol of the uplink channel is transmitted not before a first symbol with a cyclic prefix (CP) starting after the processing time from when the last symbol of the PDCCH is received.

13. The UE of claim 8 , wherein the PDCCH comprises downlink control information (DCI) including the information for DL SPS release.

14. The UE of claim 8 , wherein the HARQ-ACK information comprises acknowledgement (ACK) information or negative acknowledgement (NACK) information of the PDCCH including the information for DL SPS release.

15. A method for receiving hybrid automatic repeat request acknowledgement (HARQ-ACK) information by a base station in a wireless communication system, the method comprising:

transmitting a physical downlink control channel (PDCCH) including information for downlink semi-persistent scheduling (DL SPS) release to a user equipment (UE); and

receiving an uplink channel including HARQ-ACK information for the PDCCH including the information for DL SPS release from the UE,

wherein a first symbol of the uplink channel is received at least after a processing time (T proc,3 ) from when a last symbol of the PDCCH is transmitted,

wherein the processing time is determined based on a smaller subcarrier spacing value between a subcarrier spacing value of the PDCCH and a subcarrier spacing value of the uplink channel, and

wherein the subcarrier spacing value is a parameter (μ) indicating numerology associated with subcarrier spacing.

16. The method of claim 15 , wherein the uplink channel is a physical uplink shared channel (PUSCH) in which the HARQ-ACK information is multiplexed.

17. The method of claim 15 ,

wherein the processing time (T proc,3 ) is calculated based on T proc,3 =(N 3 +d 3 )·(2048+144)·κ·2 −μ ·T C ,

wherein d 3 is 1,

wherein μ is the smaller subcarrier spacing value between the subcarrier spacing value (μ PDCCH ) of the PDCCH and the subcarrier spacing value (μ UL ) of the uplink channel,

wherein N 3 is determined based on μ,

wherein T C is calculated based on T C =1/(Δf max ·N f ), in which Δf max is 480·10 3 Hz, and N f is 4096, and

wherein κ is κ=T s /T c =64, T s is 1/(Δf ref ·N f,ref ), Δf ref is 15·10 3 Hz, and N f,ref is 2048.

18. The method of claim 17 ,

wherein when μ is 0, N 3 is 10,

wherein when μ is 1, N 3 is 12,

wherein when μ is 2, N 3 is 22, and

wherein when μ is 3, N 3 is 25.

19. The method of claim 15 , wherein the first symbol of the uplink channel is received not before a first symbol with a cyclic prefix (CP) starting after the processing time from when the last symbol of the PDCCH is transmitted.

20. A base station, the base station comprising:

a transceiver; and

at least one processor configured to:

control the transceiver to transmit a physical downlink control channel (PDCCH) including information for downlink semi-persistent scheduling (DL SPS) release to a user equipment (UE); and

control the transceiver to receive an uplink channel including hybrid automatic repeat request acknowledgement (HARQ-ACK) information for the PDCCH including the information for DL SPS release from the UE,

wherein a first symbol of the uplink channel is received at least after a processing time (T proc,3 ) from when a last symbol of the PDCCH is transmitted,

wherein the processing time is determined based on a smaller subcarrier spacing value between a subcarrier spacing value of the PDCCH and a subcarrier spacing value of the uplink channel, and

wherein the subcarrier spacing value is a parameter (μ) indicating numerology associated with subcarrier spacing.