A data transmission method and device are provided. The method comprises a non-access stratum of a terminal device obtains description information of data to be transmitted; the non-access stratum determines, according to a mapping relationship between preset data description information and reliability transmission indication information, and the description information of the data to be transmitted, the reliability transmission indication information corresponding to the data to be transmitted, the reliability transmission indication information being used for indicating whether to perform reliability transmission on the data to be transmitted; transmitting, by the NAS, the reliable transmission indication information corresponding to the data to be transmitted to an access stratum of the terminal device, and performing, by the terminal device, transmission of the data to be transmitted.

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.

Logic may enable client devices or access points to relay medium access control (MAC) frames. Logic may extend the range of IEEE 802.11 devices, such as IEEE 802.11ah devices.

Apparatuses and methods are disclosed for sidelink (SL) communication. One method of apparatus includes determining a first resources pool for SL communication which includes SL transmission resources and SL reception resources, and transmitting resources information to a relay UE. Wherein, the first resources pool is a SL subframes pool or a SL SPS configurations pool, and the resources information is the first resource pool or a resource pair selected by the apparatus for SL communications.

A method to prioritize sidelink logical channel (SL LCH) during destination UE selection for sidelink Logical Channel Prioritization (LCP) procedure in NR sidelink communication is proposed to avoid resource starvation. A TX UE prioritizes an RX UE having at least one SL LCH that has not satisfied a required minimum bit rate during destination UE selection when allocating SL resource to a new MAC PDU for SL transmission. The TX UE maintains a value Bj for each SL LCH j, where Bj>0 indicates that the logical channel has not met the requirement of prioritized bit rate. If at least one destination UE has SL LCH with data available for transmission and with Bj>0, then the selected destination UE is the one has the highest-priority SL LCH with data available for transmission and with Bj>0.

A method for a first device to perform wireless communication and a device supporting same. The method may include the steps of: receiving, from a base station, a time division duplex uplink-downlink (TDD UL-DL) configuration including information related to a UL resource; receiving, from the base station, information related to the start of sidelink (SL) symbols, information related to the number of the SL symbols, and a bitmap indicating one or more slots included in an SL resource pool; and determining the SL resource pool.

A method and device are disclosed from the perspective of a User Equipment-to-User Equipment (UE-to-UE) Relay to forward sidelink UE capability information. In one embodiment, the method includes the UE-to-UE Relay receiving a first sidelink UE capability information from a first UE. The method further includes the UE-to-UE Relay transmitting the first sidelink UE capability information of the first UE and a second sidelink UE capability information of the UE-to-UE Relay to a second UE or transmits a combined sidelink UE capability information to the second UE, wherein the combined sidelink UE capability information is derived from the first sidelink UE capability information and the second sidelink UE capability information.

Methods, systems, and devices for wireless communications are described. A first user equipment (UE) in a wireless communications system, such as a vehicle-to-everything (V2X) communications systems, may communicate over sidelink to other UEs. The first UE may receive, from a base station, control signaling indicating a sidelink resource pool allocated for sidelink communication between the first UE and a second UE. The first UE may transmit an indication that superposition coding may be used to generate a concurrent sidelink and uplink transmission. The first UE may then transmit the concurrent sidelink and uplink transmission within a resource of the sidelink resource pool based on the indication. The second UE may decode the sidelink portion of the transmission, and the base station may decode the uplink portion of the transmission.

Methods, systems, and devices for wireless communications are described. Generally, the described techniques provide for determining shared resources associated with one or more user equipments (UEs) for sidelink communications, including control resources and data resources. A first UE may determine a first set of control resources in a first frequency band corresponding to a first group of UEs including the first UE. The first UE may transmit a sidelink request to reserve a subset of data resources to a second UE in the first group of UEs. The first UE may monitor for one or more sidelink responses indicating a positive sidelink response to the sidelink request, a negative sidelink response to the sidelink request, or both. The first UE may determine, based on monitoring for the one or more sidelink responses, whether to transmit a sidelink confirmation indicating a reservation of the data resources to the second UE.

A method for performing wireless communication by an apparatus and an apparatus for supporting same are provided. The method may comprise: receiving information related to a plurality of resource pools from the base station; and monitoring a plurality of sidelink (SL) downlink control information (DCIs) related with each of the plurality of resource pools, wherein the plurality of SL DCIs include information for scheduling SL resources on the plurality of resource pools, wherein, before at least one zero bit is appended to the plurality of SL DCIs, a size of a first SL DCI is a largest among sizes of the plurality of SL DCIs, and wherein, based on that the plurality of resource pools are configured for the device, the sizes of the plurality of SL DCIs to which the at least one zero bit is appended are same as the size of the first SL DCI.