A UE receives, from a base station or a component of the base station, at least one DL grant after a reception of an UL grant, the at least one DL grant being associated with a DL cDAI value and a DL tDAI value, the UL grant being associated with an UL tDAI value and scheduling a plurality of PUSCH repetitions. The UE calculates a total number of DL grants sent to the UE based on the DL cDAI value. The UE adjusts the total number of DL grants if there is a difference between the total number of DL grants and the UL tDAI value. The UE transmits, to the base station, a HARQ codebook in at least one of the plurality of PUSCH repetitions, a size of the HARQ codebook being based on the adjusted total number of DL grants.

This application discloses methods an apparatuses for sending and receiving uplink control information in the field of communications technology. In some implementations, a terminal device may receive first downlink control information (DCI) from a network device; determine, based on the received first DCI, that an uplink shared channel scheduled by using the first DCI is used to send only uplink control information (UCI); and send first UCI to the network device through the uplink shared channel scheduled by using the first DCI. In other words, the network device indicates to the terminal device by using DCI so that the terminal device can determine, based on an indication of the network device, whether the uplink shared channel scheduled by using the DCI is used to send only the UCI.

A user terminal according to one aspect of the present disclosure includes: a transmitting/receiving section that performs transmission and reception by using a first Component Carrier (CC) that uses a first Sub-Carrier Spacing (SCS), and a second CC that uses a second SCS larger than the first SCS; and a control section that, when a semi-static Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) codebook related to both of the first CC and the second CC is transmitted on an uplink shared channel of the second CC, deletes an HARQ-ACK bit corresponding to a downlink shared channel candidate that does not satisfy a requirement of processing time. According to one aspect of the present disclosure, it is possible to appropriately transmit HARQ-ACK even when a semi-static HARQ-ACK codebook is configured.

Methods for uplink feedback information transmission, a terminal device, and a network device. A method includes the following. A terminal device receives first downlink data and second downlink data, where a first ACK/NACK resource corresponding to first ACK/NACK information of the first downlink data and a second ACK/NACK resource corresponding to second ACK/NACK information of the second downlink data occupy the same time-domain resource. The terminal device transmits the first ACK/NACK information and/or the second ACK/NACK information on the time-domain resource.

Methods, systems, and devices for wireless communications are described. A base station may transmit a downlink control transmission and multiple downlink data transmissions to a user equipment (UE). The UE may schedule an uplink data transmission based on the downlink control transmission and may schedule transmission acknowledgement messages based on the multiple downlink data transmissions. The UE may identify that the scheduled uplink data transmission overlaps with the scheduled transmission acknowledgement messages. The UE may generate one or more acknowledgement codebooks for transmission of the multiple transmission acknowledgment messages and may multiplex the one or more acknowledgement codebooks with the uplink data transmission on the uplink data channel. In some cases, the UE may multiplex the codebooks based on determining that a set of timing thresholds are satisfied by an earliest of the multiple transmission acknowledgement messages and the uplink data transmission with respect to one or more downlink transmissions.

A method of resolving an uplink collision and pre-empting portions of an uplink channel is provided. A UE receives an uplink cancellation indication from a base station. The UE identifies that a UCI transmission on a PUCCH transmission overlaps with a second uplink transmission. The UE determines whether to apply the ULCI to the PUCCH transmission and the second uplink transmission before or after applying a multiplexing rule to resolve the collision. The UE transmits an uplink communication to the base station based on the ULCI and the multiplexing rule.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive downlink control information (DCI) carrying information indicating an updated configuration for the UE, wherein the DCI is associated with a hybrid automatic repeat request (HARQ) process for which HARQ feedback regarding the DCI is disabled. The UE may transmit the HARQ feedback regarding the DCI based at least in part on the DCI carrying the information indicating the updated configuration. Numerous other aspects are described.

A terminal and a method performed by the terminal in a wireless communication system are provided. The method includes receiving a RRC message including information related to a SPS HARQ deferral, performing at least one of multiplexing or prioritization among a first PUCCH and one or more uplink channels when the first PUCCH overlaps with the one or more uplink channels, identifying a PUCCH resource for a PUCCH transmission with HARQ-ACK information for SPS PDSCH receptions based on a result of performing at least one of the multiplexing or the prioritization in a first slot, determining a second slot based on the RRC message, when the PUCCH resource overlaps with at least one of a downlink symbol, an SS/PBCH block or a CORESET0, and transmitting the HARQ-ACK information for the SPS PDSCH receptions in the second slot.

The present application discloses a method for transmitting an uplink signal and a terminal device, including: receiving, by a terminal device, uplink grant information transmitted by a network device, where the uplink grant information is used to instruct the terminal device to transmit a first uplink channel in a first sub-slot and to transmit a second uplink channel in a second sub-slot, where the first uplink channel comprises first uplink data and does not comprise a reference signal, the second uplink channel comprises the first reference signal, the first sub-slot and the second sub-slot are adjacent sub-slot on a first carrier, the first sub-slot is located previous to the second sub-slot, and the first reference signal is used to demodulate the first uplink data; determining, by the terminal device, whether to transmit the first uplink channel in the first sub-slot according to a priority of an uplink channel.

Methods and apparatus for combining received uplink transmissions. In an embodiment, a method is provided that includes receiving a descrambled resource element associated with selected second channel state information (CSI2) and receiving a descrambling sequence used to generate the descrambled RE. The method also includes rescrambling the descrambled RE using the descrambling sequence to generate a rescrambled RE and modifying the descrambling sequence to generate a modified descrambling sequence. The method also includes descrambling the rescrambled RE with the modified descrambling sequence to generate a modified descrambled RE and accumulating the modified descrambled RE to form a combined CSI2 value.