Aspects of the present disclosure provide techniques configuring half duplex UEs (HD-UEs) to implement supplementary downlink (SDL) in band combination that may be in same or different frequency range designations (e.g., FR1 or FR2). Particularly, in order to compensate for the loss of downlink coverage and improve load balancing, aspects of the present disclosure configure the UE to perform random-access channel (RACH), a procedure that is a shared channel used by wireless terminals to access the mobile network, on the anchor carrier in time division duplex (TDD) band and after initial access, the UE may be configured to switch to SDL to receive subsequent downlink signals.

A user equipment of a wireless communication system is disclosed. The user equipment includes a communication module, and a processor. The processor is configured to transmit a radio frame divided into a plurality of subframes through the communication module, and perform a UL transmission in a partial subframe having a duration shorter than one subframe duration to the base station based on at least one of an indication of a base station and a result of a channel access of the wireless communication system.

A resource assignment method, a related device, and an apparatus. The method includes: receiving, by a terminal from a network device, a resource assignment indication used to indicate frequency domain resource assignment, where the resource assignment indication is used to indicate a plurality of first resource units assigned to the terminal and that the plurality of first resource units are categorized into one or more groups, where a quantity of first resource units in each group is a product of powers of 2, 3, and 5; and performing, by the terminal, discrete Fourier transform based on the plurality of first resource units. According to the resource assignment method, flexible resource assignment can be performed, and spectrum utilization can be improved.

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for narrowband communications using frequency hopping in an unlicensed frequency band. In some implementations, a base station (BS) may transmit downlink (DL) data using a sequence of DL hopping frames on a corresponding sequence of unique hopping channels associated with a DL frequency hopping pattern. In some implementations, each user equipment (UE) of one or more UEs may transmit uplink (UL) data using a sequence of UL hopping frames on a corresponding sequence of unique hopping channels associated with a different UL frequency hopping pattern.

A method by which a first device performs wireless communication and an apparatus for supporting same are provided. The method comprises the steps of: determining a selection window; selecting Y candidate slots within the selection window; determining at least one slot related to the Y candidate slots, on the basis of a resource reservation period value set for a resource pool; selecting at least one sidelink (SL) resource from among SL resources included in the Y candidate slots, on the basis of sensing the at least one slot; and performing SL communication on the basis of the at least one SL resource, wherein the value of Y may be a positive integer.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station over a set of component carriers according to a carrier aggregation configuration. In some cases, the UE may receive an indication of one or more groups of units, where each group may include one or more component carriers and/or one or more time intervals of each component carrier. The UE may receive downlink control information (DCI) including one or more fields that are common to a group of units that may schedule a set of data transmissions over the one or more groups of units such that the single DCI may schedule multiple component carriers (e.g., two or more) over one or more time intervals. The UE may transmit or receive the set of data transmissions (e.g., uplink or downlink data transmissions) over the scheduled units based on receiving the DCI.

The disclosure relates to a method and apparatus by which a transmission terminal allocates resources in a vehicle-to-everything (V2X) system. An operating method of a terminal in a wireless communication system may include identifying a first candidate resource set for sidelink communication in a first resource selection window, through sensing based on first sidelink control information (SCI) received in a first sensing window, identifying a second candidate resource set for sidelink communication in a second resource selection window, through sensing based on second SCI received in a second sensing window, determining, based on the second SCI, whether to perform pre-emption or re-evaluation for a first resource, and when it is determined to perform the pre-emption or the re-evaluation for the first resource, triggering re-selection of resources for sidelink communication, and reporting the first resource for which the pre-emption or the re-evaluation has been performed, and the second candidate resource set to a higher layer of the terminal.

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may communicate with a base station using a beamforming configuration, according to a transmission configuration indicator (TCI) configuration. The UE may receive a message including a TCI configuration. The UE may determine based on the TCI configuration, a TCI pool for a TCI state type of a set of TCI state types and a set of CCs. The UE may then perform the wireless communication via a directional beam based on the TCI pool for the TCI state type and the set of component carriers (CCs).

A data sending method and a terminal device are provided. The data sending method is applied to a terminal device and includes sending placeholder data in a guard period of a slot, an idle duration of the guard period being less than or equal to a target sensing duration. The placeholder data is sent in the guard period of the slot, such that a duration of the guard period may be reduced and a possibility of a transmission resource being preempted by other terminal devices may be reduced, or even avoid the transmission resource being preempted by the other terminal devices.

A communication method and a related apparatus. The method includes: a terminal device receives first indication information sent by a network device. When the first indication information indicates a channel unoccupied time of the network device, within the channel unoccupied time, the terminal device skips performing downlink measurement, skips receiving the downlink data, skips sending a HARQ feedback corresponding to the downlink data, or determines that a downlink measurement result is invalid. Unnecessary measurement can be reduced, a downlink measurement failure caused because a network side does not preempt a channel can be excluded, and measurement efficiency and accuracy of a measurement result can be improved.