The present disclosure provides methods and systems for allocation of contention based data transmission (CBDT) resource blocks in a non-terrestrial network. The method comprises: determining if the CBDT resource blocks are to be configured for allocation to a plurality of user equipments (UEs) based on at least one of a plurality of parameters. The method comprises determining if a fixed number of CBDT resource blocks from the CBDT resource blocks are to be used for the allocation based on the determination using at least one of the plurality of parameters. The method comprises allocating a number of CBDT resource blocks in one of a fixed manner or a dynamic manner, wherein the number of CBDT resource blocks are allocated in the fixed manner, based on the fixed numbers of CBDT resource blocks being used for the allocation, and the number of CBDT resource blocks are allocated in the dynamic manner, based on the fixed numbers of CBDT resource blocks not being used for the allocation.

Provided are a random access method and device, a user equipment and a storage medium. The method includes: determining listen-before-talk (LBT) priority levels for performing an LBT mechanism corresponding to messages transmitted during a random access process, and/or LBT priority levels of an LBT mechanism corresponding to different physical random access channel (PRACH) formats; and transmitting the messages for random access by means of the determined LBT priority levels corresponding to the messages and/or LBT priority levels corresponding to different PRACH formats after successfully performing the LBT mechanism. In such a way, the problem of the need of optimizing random access for a user equipment in the related art is resolved, thereby optimizing random access and improving the random access success rate.

Apparatuses, methods, and systems are disclosed for determining a priority order based on an uplink transmission parameter. One apparatus includes a receiver that receives an uplink grant corresponding to an uplink transmission parameter. The apparatus includes a processor that determines a priority order of multiple logical channels based on an uplink transmission parameter priority corresponding to the uplink transmission parameter and a logical channel priority of the multiple logical channels. The processor assigns resources to logical channels of the multiple logical channels based on the priority order.

Disclosed herein are a method for transmitting and receiving uplink control information between a terminal and a base station in a wireless communication system and devices supporting the same. Particularly, disclosed herein are a method for transmitting and receiving uplink control information between a terminal and a base station on a physical uplink shared channel (PUSCH) without data (e.g., UL-SCH) and operation of devices supporting the same.

Methods, systems, and devices for wireless communications are described that provide for transmission of random access preambles from a UE based at least in part on a synchronization signal block (SSB) that is received from a base station. A random access response may be transmitted from the base station based at least in part on a random access resource that is used for the random access preamble, an SSB associated with the random access resource, an SSB index, or combinations thereof. In some cases, two or more SSBs may be mapped to a single random access resource, and a single random access radio network temporary identifier (RA-RNTI), or two or more RA-RNTIs, may be used for each of the two or more SSBs. In some cases, a single random access response message contains information for each UE that transmits a random access preamble in the single random access resource.

Non-Orthogonal Multiple Access (NOMA) transmissions are described herein in which sequence collision is mitigated or eliminated by exploiting the randomness nature of user specific reference bits and data bits. Further, methods, systems, and devices that use NOMA for small data transmissions are disclosed.

An information processing method and a device are provided. The method includes: receiving, by a terminal device, a random access response grant, where the random access response grant includes a resource allocation field, and when the random access response grant is used for scheduling of a first Msg3, the resource allocation field includes four bits, the resource allocation field performs resource indication in narrowband based on an uplink resource allocation type 0, and the resource allocation field is capable of indicating resource allocation of one of one resource block, two resource blocks, three resource blocks, or six resource blocks in the narrowband; determining, by the terminal device based on the resource allocation field, a resource block allocated to the terminal device; and sending, by the terminal device, the first Msg3 or the second Msg3 to a network device on the allocated resource block.

Methods, systems, and devices for wireless communications are described. A first wireless device may receive, from a second wireless device, a first downlink grant scheduling a first downlink resource for a delay-sensitive packet. The first wireless device may monitor the first downlink resource for the delay-sensitive packet from the second wireless device and identify a first routing identifier indicating at least a third wireless device in the first downlink grant. The first wireless device may transmit, to the third wireless device, a second downlink grant scheduling a second downlink resource and including a second routing identifier based on the first routing identifier. In some cases, the first wireless node may send a scheduling grant to the third wireless device for transmission of a delay-sensitive packet for a next hop before completion of processing of the packet received from the second wireless device.

Enhanced transmission opportunities are disclosed for sounding reference signals (SRS). The enhancements may provide more flexibility in scheduling SRS transmission and more SRS transmission opportunities. An additional offset may be defined and dynamically communicated to a user equipment (UE) to use either to override or in additional to a semi-statically communicated standard offset when scheduling the SRS transmission opportunity based on an SRS trigger slot or another granted slot. The UE may further treat each combination of timing information as a separate SRS opportunity or may define a window between two signaled timing offsets within which the UE may attempt SRS transmissions.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive a single downlink control information (DCI) message. The UE may map a bit sequence in the single DCI message to a configuration set that includes multiple downlink semi-persistent scheduling configurations or multiple uplink configured grant configurations to be jointly activated or released. Numerous other aspects are provided.