A terminal according to one embodiment of the present invention determines and reports a specific codebook-based HARQ-ACK on the basis of the result of receiving a plurality of PDSCHs, and, on the basis of a first-type codebook-based HARQ-ACK having been set for scheduling of the plurality of PDSCHs, the terminal can perform first start symbol and length indicator value (SLIV) pruning on the basis of a set of the SLIVs of PDSCHs, which can be potentially scheduled on each slot of a bundling window determined on the basis of a plurality of candidate PDSCH-to-HARQ feedback timing values, and perform second SLIV pruning on the basis of a set of the SLIVs of PDSCHs, which can be potentially scheduled even on at least one slot that does not belong to the bundling window.

Methods, systems, and devices for wireless communication are described. A first wireless device may establish a sidelink communications link with a second wireless device. The first wireless device may transmit, to the second wireless device, an indication of a capability to support a configuration for phase continuity between multiple physical channel transmissions of the sidelink communication link. The first wireless device may transmit one or more physical channel transmissions, which each may be associated with a set of one or more demodulation reference signals (DMRSs) to the second wireless device in accordance with the indicated configuration for phase continuity between the physical channel transmissions. The second wireless device may determine channel parameters associated with the one or more physical channel transmissions based on a joint channel estimation associated with the one or more sets of DMRSs.

A method performed by a UE is provided. The method includes receiving a first DCI format for scheduling at least one HARQ-ACK codebook in at least one first PUCCH in at least one first slot; receiving a second DCI format in a second slot, the second DCI format (i) for scheduling a retransmission of the HARQ-ACK codebook in a second PUCCH and (ii) indicating a first slot offset; and transmitting the first HARQ-ACK codebook scheduled in one of the at least one first slot via the second PUCCH. If the first slot offset is a positive value, the first slot is determined by counting backward a number of slots indicated by the first slot offset from the second slot. If the first slot offset is a negative value, the first slot is determined by counting forward the number of slots indicated by the first slot offset from the second slot.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a relay user equipment (UE) may receive, from a base station, a downlink control information (DCI) message scheduling a first transmission between a source node and the relay UE and a second transmission between the relay UE and a destination node. The UE may transmit, to the base station, at least one of: feedback regarding at least one of the first transmission or the second transmission, or the second transmission. 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 an indication of a first set of resources associated with a semi-persistent scheduling (SPS) acknowledgement/negative acknowledgement (A/N) feedback message, wherein the SPS A/N feedback message is deferred to a second set of resources by the UE. The UE may receive an indication of a third set of resources associated with a dynamic A/N feedback message, wherein the second set of resources and the third set of resources are associated with a collision. The UE may perform an action based on the second set of resources and the third set of resources being associated with the collision. The UE may transmit at least one of the SPS A/N feedback message or the dynamic A/N feedback message based on performing the action. Numerous other aspects are described.

A method by a UE for performing a random access procedure is provided. The method comprises transmitting a MSGA, monitoring a MSGB-RNTI within a MSGB window starting from an earliest symbol of an earliest PDCCH occasion after the MSGA transmission, receiving the MSGB in a first slot, the MSGB including a success RAR that contains a HARQ Feedback Timing Indicator, a Physical Uplink Control Channel (PUCCH) Resource Indicator, and a UE Contention Resolution Identity, determining, by a MAC entity, to instruct a lower layer to transmit a HARQ feedback in a second slot in response to the reception of the success RAR, delivering, by the MAC entity, the HARQ Feedback Timing Indicator and the PUCCH Resource Indicator to the lower layer, and performing, by the lower layer, a HARQ feedback delivery on an uplink (UL) resource.

Embodiments of the disclosure provide a method and device for performing communication. The method comprises: determining a target transmission pattern from a set of candidate transmission patterns, wherein each of the candidate transmission patterns contains a DL transmission part and/or a UL transmission part, and the candidate transmission patterns differ from one another in terms of time durations of the respective DL transmission parts and/or the UL transmission parts; and performing communication between a network device and a terminal device by using the target transmission pattern.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may determine that a base station has scheduled the UE for one or more downlink transmissions, each of the one or more downlink transmissions having an associated repetition factor that corresponds to one of a plurality of configured repetition factors configured at the UE. The UE may identify an applied repetition factor to apply to feedback codebook generation for the one or more downlink transmissions. The UE may generate a feedback codebook for reporting feedback for the one or more downlink transmissions, the feedback codebook populated based at least in part on the applied repetition factor and on whether the one or more downlink transmissions were successfully received and decoded. The UE may transmit to the base station a feedback report that includes the feedback codebook.

Wireless communication between a user equipment (UE) and a base station may occur on unlicensed spectrum. When wirelessly communicating on unlicensed spectrum, there is an expectation that there may be interference from others devices also transmitting on the same resources in the unlicensed spectrum. Systems and methods are therefore disclosed that aim to facilitate wireless communication in unlicensed spectrum. In some embodiments, systems and method are disclosed that are directed to the transmission of uplink control information (UCI) in unlicensed spectrum. The UCI may be or include hybrid automatic repeat request (HARQ) feedback. The HARQ feedback may correspond to a downlink data transmission that was also sent on unlicensed spectrum.

A communication method and system for converging a 5.sup.th-Generation (5G) communication system for supporting higher data rates beyond a 4.sup.th-Generation (4G) system with a technology for Internet of Things (IoT) are provided. The communication method and system may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. A method and apparatus for determining a reception area of a packet in a V2X system are provided. In described aspects, a reception terminal may receive location information of a transmitting terminal and range information of transmitted data, and may determine whether to provide feedback regarding the transmitted data based on the location information and the range information.