IP Library › Granted Patent US 12665726
Granted Patent B2
US 12665726 · App. 18/280,112 · Granted Jun 23, 2026

Method and apparatus for transmitting and receiving uplink control information in a wireless communication system

Inventors: Youngdae Lee (Seoul, KR); Suckchel Yang (Seoul, KR); Seonwook Kim (Seoul, KR)
Assignee: LG ELECTRONICS INC.
H04L5/0055H04W72/11H04W72/21
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Quick Facts
Patent No.
US 12665726
App. No.
18/280,112
Granted
Jun 23, 2026
Kind
B2
Abstract

A method and apparatus for transmitting and receiving uplink control information in a wireless communication system are disclosed. A method performed by a user equipment in a wireless communication system according to an embodiment of the present disclosure may comprise the steps of: receiving configuration information on one or more SPS configurations; and performing SPS PDSCH reception based on a specific SPS configuration among the one or more SPS configurations. Here, each of the one or more SPS configurations may be associated with one of a first HARQ-ACK mode based on a ACK value and a NACK value, and a second HARQ-ACK mode based on a NACK value. Based on the PUCCH resource related to HARQ-ACK transmission for the SPS PDSCH reception being invalid, the HARQ-ACK transmission may be deferred or dropped according to a HARQ-ACK mode associated with the specific SPS configuration.

Claims (40)

1 . A method comprising:

receiving, by a user equipment (UE), configuration information for one or more semi-persistent scheduling (SPS) configurations; and

performing SPS physical downlink shared channel (PDSCH) reception based on at least one SPS configuration among the one or more SPS configurations,

wherein each of the at least one SPS configuration is related to one of a first hybrid automatic repeat request (HARQ)-ACK mode based on an acknowledgment (ACK) value and a non-acknowledgement (NACK) value, and a second HARQ-ACK mode based on a NACK value, and

wherein, based on a PUCCH resource related to a HARQ-ACK transmission for the SPS PDSCH being invalid, the HARQ-ACK transmission is deferred or dropped according to a HARQ-ACK mode for the at least one SPS configuration.

2 . The method of claim 1 ,

wherein, based on the at least one SPS configuration being related to the first HARQ-ACK mode, the HARQ-ACK transmission is deferred.

3 . The method of claim 1 ,

wherein, based on the at least one SPS configuration being related to the second HARQ-ACK mode, the HARQ-ACK transmission is dropped.

4 . The method of claim 1 ,

wherein, based on the at least one SPS configuration being related to the second HARQ-ACK mode, the HARQ-ACK transmission is transformed to the first HARQ-ACK mode and deferred.

5 . The method of claim 1 ,

wherein, based on the HARQ-ACK transmission being deferred, the deferred HARQ-ACK transmission is performed in a subsequent valid physical uplink control channel (PUCCH) slot.

6 . The method of claim 5 ,

wherein the subsequent valid PUCCH slot corresponds to one of the PUCCH resources related to the first HARQ-ACK mode.

7 . The method of claim 6 ,

wherein the PUCCH resources related to the first HARQ-ACK mode are configured through higher layer signaling.

8 . The method of claim 5 ,

wherein the subsequent valid PUCCH slot is indicated by multicast downlink control information (DCI) format based on the first HARQ-ACK mode.

9 . The method of claim 1 ,

wherein the one or more SPS configurations include a first SPS configuration for a unicast SPS PDSCH and a second SPS configuration for a multicast SPS PDSCH, and

wherein the at least one SPS configuration corresponds to the second SPS configuration.

10 . The method of claim 9 ,

wherein the at least one SPS configuration include parameters related to SPS HARQ deferral.

11 . An apparatus for a user equipment in a wireless communication system, the apparatus comprising:

at least one transceiver for transmitting and receiving a wireless signal; and

at least one processor for controlling the at least one transceiver,

wherein the at least one processor is configured to:

receive configuration information for one or more semi-persistent scheduling (SPS) configurations; and

perform SPS physical downlink shared channel (PDSCH) reception based on a at least one SPS configuration among the one or more SPS configurations,

wherein each of the at least one SPS configuration is related to one of a first hybrid automatic repeat request (HARQ)-ACK mode based on an acknowledgment (ACK) value and a non-acknowledgement (NACK) value, and a second HARQ-ACK mode based on a NACK value, and

wherein, based on a PUCCH resource related to a HARQ-ACK transmission for the SPS PDSCH being invalid, the HARQ-ACK transmission is deferred or dropped according to a HARQ-ACK mode for the at least one SPS configuration.

12 . A base station in a wireless communication system, the base station comprising:

at least one transceiver for transmitting and receiving a wireless signal; and

at least one processor for controlling the at least one transceiver,

wherein the at least one processor is configured to:

transmit configuration information on one or more semi-persistent scheduling (SPS) configurations; and

perform a SPS physical downlink shared channel (PDSCH) transmission based on a at least one SPS configuration among the one or more SPS configurations,

wherein each of the at least one SPS configuration is related to one of a first hybrid automatic repeat request (HARQ)-ACK mode based on an acknowledgment (ACK) value and a non-acknowledgement (NACK) value, and a second HARQ-ACK mode based on a NACK value, and

wherein, based on a PUCCH resource related to a HARQ-ACK transmission for the SPS PDSCH being invalid, the HARQ-ACK transmission is deferred or dropped according to a HARQ-ACK mode for the at least one SPS configuration.