A method by which a terminal transmits data in an unlicensed band, and an apparatus using the method are provided. The method comprises: transmitting data to a base station through a physical uplink shared channel (PUSCH) in the unlicensed band; and receiving, from the base station, acknowledgement/negative acknowledgement (ACK/NACK) information about the data in the unlicensed band, wherein the terminal receives, from the base station, timeline information notifying of a time relationship between the PUSCH transmission time point and the ACK/NACK information reception time point.

A wireless device may receive an indication that repetition of downlink control information (DCI) is scheduled via a first monitoring occasion and a second monitoring occasion. The wireless device may transmit one or more feedback information bits via an uplink resource. The one or more feedback information bits may be based on a downlink assignment index (DAI) corresponding to the earlier of the first monitoring occasion and the second monitoring occasion.

A method of operating a terminal device in a wireless telecommunications system, the method comprising: attempting to decode a transmission of data to the terminal device; determining whether or not the data was successfully decoded; and transmitting acknowledgement signalling indicating whether or not the data was successfully decoded on radio resources that are determined by taking account of whether or not the data was successfully decoded.

A method for performing radio communication by a first apparatus, and an apparatus for supporting same may be provided. The method may comprise the steps of: obtaining second bits by attaching cyclic redundancy check (CRC) bits to first bits associated with second sidelink control information (SCI); obtaining third bits on the basis of channel coding for the second bits; obtaining fourth bits by performing rate matching on the third bits on the basis of the number of modulation symbols, wherein the number of modulation symbols is obtained on the basis of the number of first bits, the number of CRC bits, a beta-offset value included in first SCI associated with the second SCI, an alpha value configured for each resource pool, the number of symbols associated with transmission of a physical sidelink shared channel (PSSCH), the number of resource elements (Res) associated with transmission of the second SCI for each symbol, and a gamma value, the gamma value being the number of vacant REs in a resource block (RB) to which a last symbol associated with the second SCI belongs; and transmitting the second SCI to a second apparatus via the PSSCH on the basis of scrambling, modulation, and mapping for the fourth bits.

A terminal according to an aspect of the present disclosure includes: a reception section that receives downlink control information for triggering feedback of a one-shot HARQ-ACK; and a control section that controls feedback of HARQ-ACKs each corresponding to one of a plurality of service types or HARQ-ACKs having different priorities by using different codebooks in a case where the feedback of the HARQ-ACK is performed on the basis of the downlink information.

Methods and apparatuses for signal transmission and reception are provided for a wireless communication system. Information for configuring a plurality of physical uplink control channel (PUCCH) resources is transmitted to a terminal. Downlink control information (DCI) is transmitted to the terminal on a physical downlink control channel (PDCCH). The DCI includes a resource indicator for indicating a PUCCH resource among the plurality of PUCCH resources. Uplink control information (UCI) is received from the terminal on the PUCCH resource indicated by the resource indicator.

Provided are a channel conflict processing method and apparatus, a device, and a storage medium. The channel conflict processing method includes: in the case where a transmission resource on a high-priority uplink channel of a UE and a transmission resource on a low-priority uplink channel of the UE overlap in time domain, determining the start position for transmission cancellation of the low-priority uplink channel; and canceling the transmission resource on the low-priority uplink channel according to the start position for transmission cancellation.

Wireless communications systems and methods related to acknowledgement/negative-acknowledgement (ACK/NACK) transmissions with different reliability levels are provided. A user equipment (UE) receives, from a base station (BS), a negative acknowledgement (NACK) transmission configuration. The UE receives, from the BS, a data transmission. The UE transmits, to the BS, a physical uplink control channel (PUCCH) signal including a NACK for the data transmission based on the received NACK transmission configuration. Other aspects and features are also described.

This application discloses an information feedback method, a resource scheduling method, a terminal, and a network device. The information feedback method includes: performing HARQ-ACK feedback for multicast downlink transmission and unicast downlink transmission in one time unit.

A wireless device receives a physical downlink control channel (PDCCH) that may include a downlink control information (DCI) scheduling a physical downlink shared channel (PDSCH). In an embodiment, the PDCCH may include PDCCH candidates from search space sets, associated with control resource sets (coresets), that are configured for repetition. The wireless device may also receive a transport block via the PDSCH, where the resource block (RB) numbering of the PDSCH starts from a lowest RB of a coreset with the lowest index among the coresets.