Buffer Status Reports (BSR), by which the network is made aware of uplink transmission needs of wirless devices, are specifically enabled to be transmitted using 2-step Random Access (RA), to reduce latency and network resource use. In one embodiment, 2-step RA configurations tailored to B SR-transmissions are introduced. These may, for example, use a subset of the configured resources in the configured 2-step RA resources for B SR. In another embodiment, conditions for triggering B SR over 2-step RA, depending on the traffic, are introduced. For example, the priority or the the delay budget of the traffic may be used to determine whether a BSR over 2-step RA should be triggered. In another embodiment, simplified procedures when receiving the response to MsgA are introduced. These may include, for example, not transmitting a full MsgB, but rather having the UE receive an UL grant.

The present invention relates to a wireless communication method and a wireless communication terminal for wideband link setup, and more particularly, a wireless communication method and a wireless communication terminal for increasing data communication efficiency by extending a data transmission bandwidth of a terminal. To this end, provided are a wireless communication method of a terminal, including: obtaining first primary channel information of a basic service set (BSS) with which the terminal is associated; performing clear channel assessment (CCA) for one or more secondary channels of the BSS; and setting a second primary channel among one or more secondary channels determined to be idle based on a result of the CCA, and a wireless communication terminal using the same.

User equipment may request to communicate with a basestation over a contention-based wireless communication channel. The basestation and the user equipment may perform a multiple-step random access protocol to determine whether the user equipment may communicate over the wireless communication channel. The architecture, e.g., the fields and structure of the messages sent by the basestation may indicate the content and type of those same messages.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine, based at least in part on a configuration of a first random access channel associated with a macro cell, one or more parameters of a configuration of a second random access channel associated with a small cell provided by the base station. The base station may transmit an indication of the one or more parameters of the configuration of the second random access channel. Numerous other aspects are provided.

Embodiments disclosed herein provide favored channel access for STAs whose transmissions have failed or collided. After a first collision or transmission failure, a STA receives prioritized access in order to re-transmit a PPDU. If an initial transmission of the PPDU is unsuccessful (e.g., the initial transmission fails or if the PPDU collides with another transmission), for retransmission of the PPDU, the STA may update the EDCA parameters to EDCA parameters for prioritized access, may determine a backoff for accessing the wireless medium, and may retransmit the PPDU based on the EDCA parameters for prioritized access (i.e., using the updated EDCA parameters). The EDCA parameters for prioritized access may be configured to give the STA a higher probability of accessing the wireless medium for a PPDU retransmission than use of the initial EDCA parameters.

The methods, devices, and systems discussed herein involve a mobile wireless communication device (WCD) receiving a signal containing an indicator upon entering a first area that is near a potential safety scenario, such as an intersection. In response to receiving the signal, the WCD initiates a Random-Access Channel (RACH) procedure, which triggers initiation of a collision-avoidance procedure. In some examples, the collision-avoidance procedure includes abase station transmitting a safety message that indicates the presence of the mobile WCD. In other examples, the collision-avoidance procedure includes the mobile WCD transmitting a device-to-device (D2D) safety message using D2D resources. In further examples, the collision-avoidance procedure includes the mobile WCD sensing D2D resources in order to detect D2D transmissions from a D2D-capable device.

A wireless communications protocol in which multiple-link operations provide enhanced efficiency in particular for non-simultaneous transmit receive (NSTR) communications between stations (STAs) of multiple-link devices (MLDs). When MLD1 is the TXOP holder of Link1 and the channel is accessed on Link2 by MLD2 for transmitting to MLD1; MLD2 immediately transmits over Link2 to MLD1, if MLD1 is receiving on Link1. MLD2 transmits a frame over Link2 to occupy the channel if MLD1 is transmitting on Link1, then when MLD1 is receiving on Link1 then MLD2 transmits another frame to MLD1.

A node in a wireless mesh network determines that a threshold level of duplicate network protocol data units (PDUs) are received. Further, the node receives one or more network PDUs comprising respective segments of transport data in a transport PDU. The node relays a subset of the received one or more network PDUs comprising respective segments to one or more neighboring nodes. The subset is relayed based on determination that the node has received a threshold level of duplicate network PDUs.

Techniques and examples of design for initial access in New Radio (NR) unlicensed spectrum (NR-U) are described. An apparatus receives from a base station of a wireless network which transmits one or multiple synchronization signal and PBCH blocks (SS/PBCH blocks) whose indices are indicated in a cyclic-wrapped order subject to a result of listen-before-talk (LBT) in NR-U. The apparatus also transmits a random access request on random access channel (RACH) resources allocated by the base station.

A data transmission method and apparatus, and a non-transitory computer-readable storage medium are disclosed. The data transmission method may include: sending, by a first communication node, a radio frame comprising indication information to a second communication node, wherein the second communication node is associated with a third communication node, the third communication node and the first communication node perform joint transmission, and the indication information is configured to instruct a fourth communication node other than the second communication node, after receiving the radio frame, to determine whether to compete for channel access according to the indication information.