A terminal apparatus transmits a PUCCH in a certain slot, and receives multiple DCI formats on a set of PDCCH monitoring occasions corresponding to the certain slot. In a case that multiple PUCCHs exist in the certain slot and that the multiple PUCCHs include a first PUCCH including a first type HARQ-ACK codebook and a second PUCCH including a second type HARQ-ACK codebook, the second PUCCH is not transmitted.

A terminal includes a control unit configured to determine, in a case where a first transmission of transmitting an HARQ (Hybrid Automatic Repeat Request) response received from another terminal to a base station overlaps in at least in a time domain with a second transmission to a base station, at least one of a priority and a priority order, of each transmission, and to determine control associated with the first transmission and the second transmission, based on the priorities, and a transmission unit configured to perform the control associated with the first transmission and the second transmission, based on the determination, and the control unit changes control associated with determination of priority order of transmissions, based on a configuration associated with communication.

Disclosed are an information sending method, information receiving method, apparatus, and device. The information sending method includes: receiving a physical sidelink feedback channel (PSFCH); determining a first duration; and sending a physical uplink control channel (PUCCH) or a physical uplink shared channel (PUSCH) not earlier than a first moment, where the first moment is a moment the first duration after an end moment of receiving the PSFCH. A terminal device does not send the PUCCH or the PUSCH before the moment the first duration after the end moment of receiving the PSFCH. Because the terminal device can determine the first duration, it is ensured that the terminal device may have sufficient time to process the PUCCH or the PUSCH. The PUCCH or the PUSCH may be used to carry sidelink hybrid automatic repeat request (HARQ) information, and the HARQ information may be generated based on the received PSFCH.

The technology of this application provides a control information transmission method, so that sizes of different downlink control information (DCI) can be aligned, thereby reducing types of DCI sizes and reducing power consumption when a terminal detects DCI. The method includes a terminal device detecting first DCI in a first search space, where the first DCI is used to indicate an active bandwidth part (BWP) of the terminal device, a size of the first DCI and a size of second DCI are aligned, the second DCI can be sent by a network device to the terminal device in a first common search space, and the second DCI is used to schedule a system message, a paging message, or a random access response (RAR).

A method may include determining a slot for hybrid automatic repeat request feedback based on one or more downlink assignments. The method may also include determining one or more sets of communication channels with associated start and length indicators for which hybrid automatic repeat requests will be bundled based on a resource assignment table and a hybrid automatic repeat request bundling configuration parameter. The method may further include determining one or more sets of candidate communication channel slots based on K1 values and the resource assignment table. Further, the method may include selecting a start and length indicator for each communication channel set from a corresponding resource assignment row. The method may also include removing unselected start and length indicators and candidate communication channel slots without a selected start and length indicator.

Methods, systems, and devices for wireless communication are described. Some wireless communications systems may support codebook structures for multiplexing single-bit feedback and multi-bit feedback in a same uplink feedback message. A user equipment (UE) may receive a first downlink message associated with single-bit feedback and a second downlink message associated with multi-bit feedback. The first downlink message and the second downlink message may have a common uplink transmission opportunity for transmitting feedback pertaining to the downlink messages. The UE may generate a codebook that supports inclusion of both the single-bit feedback and the multi-bit feedback for the first and second downlink messages. The UE may transmit the feedback message during the common uplink transmission opportunity based on the codebook.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a request to transmit one or more canceled hybrid automatic repeat request (HARQ) codebooks, the one or more canceled HARQ codebooks having been scheduled for transmission within a time window preceding receiving the request. The UE may transmit the one or more canceled HARQ codebooks via one or more resources associated with the request. Numerous other aspects are described.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a semi-persistent scheduling (SPS) downlink communication. The UE may detect a collision between a configured uplink resource associated with a hybrid automatic repeat request acknowledgement (HARQ-ACK) for the SPS downlink communication and a candidate synchronization signal block (SSB) position. The UE may transmit the HARQ-ACK for the SPS downlink communication in the configured uplink resource or in a deferred uplink resource in connection with detecting the collision. Numerous other aspects are described.

This disclosure provides systems, methods, and devices for wireless communication that support mechanisms for semi-persistent scheduling (SPS) and hybrid automatic repeat request (HARQ) feedback skipping for user equipment (UE)-initiated transmissions. A UE configured for extended reality (XR) operations and an SPS configuration including a plurality of SPS occasions, each SPS occasion configured with at least one downlink resource and at least one uplink resource, collects pose information related to at least one SPS occasion. The UE determines, based on the pose information, to skip at least one SPS occasion. The UE sends an indication of the determination to skip the at least one SPS occasion to a base station. The indication is transmitted in a preconfigured uplink resource or may be piggyback an uplink transmission. The base station may reallocate the resources configured for the at least one SPS occasion based on receiving the indication.

A communication device for handling a hybrid automatic repeat request (HARQ) transmission, comprises at least one storage device; and at least one processing circuit, coupled to the at least one storage device, wherein the at least one storage device stores instructions, and the at least one processing circuit is configured to execute the instructions of: receiving a configuration from a network, wherein the configuration comprises a time domain resource allocation (TDRA) table and a set of a plurality of timing values; and receiving a downlink (DL) control information (DCI) from the network, wherein the DCI indicates a row of the TDRA table for at least one physical DL shared channel (PDSCH) reception and indicates a timing value of the set of the plurality of timing values for the HARQ transmission corresponding to the at least one PDSCH reception.