A radio communication terminal that increases the ACK/NACK resource utilization efficiency while preventing ACK/NACK collision, and that causes no unnecessary reduction of the PUSCH band in a system that transmits E-PDCCH control information. The radio communication terminal adopts a configuration including a receiving section that receives a control signal including an ACK/NACK index via an enhanced physical downlink control channel (E-PDCCH) transmitted using one configuration from among one or a plurality of configuration candidates, a control section that selects a resource to be used for an ACK/NACK signal of downlink data from among specified resources specified beforehand based on E-PDCCH configuration information used for transmission or reception of the E-PDCCH and the ACK/NACK index, and a transmitting section that transmits the ACK/NACK signal using the selected specified resource.

A control device may be configured to delay an attachment procedure while attachment messages are being transmitted over the network. The control device may be configured to initiate an attachment procedure with a router device on a network at the end a back-off period of time. The attachment procedure may include transmitting attachment messages (e.g., parent request messages) that enable the control device to transmit and receive messages over the network through the router device. During the back-off period of time, the control device may determine an attachment message is received from another control device on the network. And, if an attachment message (e.g., a parent request messages and/or a link request message) is received from another control device, the control device may increase the back-off period of time (e.g., delaying when the control device initiates its attachment procedure).

Methods, systems, and devices for wireless communications are described. Interference between random access channel (RACH) transmissions and Industrial Internet of Things (IIoT) transmissions may be avoided with a RACH occasion forbidden mask and a dynamic indication of availability of downlink retransmission resources. A user equipment (UE) may receive an indication of a RACH configuration and a forbidden mask associated with the RACH configuration. The UE may identify, from a set of random access occasions indicated by the RACH configuration, a subset of allowed random access occasions based on the forbidden mask. The UE may transmit a random access message during at least one allowed random access occasion of the subset. Additionally or alternatively, a base station may determine whether one or more transmissions on a component carrier (CC) were successful, and transmit downlink control information (DCI) indicating whether a set of random access occasions are available on the CC.

A multi-link device (MLD) in a wireless local area network (WLAN) system is proposed. The MLD may include an access point (AP) MLD. The AP MLD may receive receiving, from a non-simultaneous transmit and receive (Non-STR) station (STA) MLD, a multilink aggregation request signal through a first link. The multilink aggregation request signal may include first information related to a second link for which aggregation is requested and second information related to a transmission opportunity (TXOP) to be set in the second link. The AP MLD may obtain the TXOP based on the second information in the second link. The AP MLD may transmit, to the Non-STR STA MLD, a first multilink aggregation response signal through the first link and a second multilink aggregation response signal through the second link.

A method includes: A multi-link device performs first channel contention on a first link, where an initial value of a backoff counter in the first channel contention is determined based on a first value of a contention window. The multi-link device may perform second channel contention on the first link when a value of the backoff counter becomes 0 in the first channel contention and the multi-link device does not perform transmission on the first link, where an initial value of the backoff counter in the second channel contention is determined based on a second value of the contention window, and the second value is equal to the first value or a minimum value of the contention window.

A channel contention method includes performing, by a first station and a second station of a multi-link device (MLD), channel contention based on a first enhanced distributed channel access (EDCA) parameter; generating, by the first station and the second station, a point coordination function (PCF) inter-frame space (PIFS) access timer when the first station performs EDCA access and the second station performs PIFS access; and performing, by the first station and the second station, channel contention based on a second EDCA parameter before the PIFS access timer backs off to 0.

Provided are a signal processing method and apparatus, a first communication node, a second communication node, and a storage medium. The signal processing method includes acquiring N first sequences, combining the N first sequences to obtain a second sequence, and generating a signal according to the second sequence. N is an integer greater than or equal to 2.

A random access method, a device, and a medium. The random access method includes: receiving configuration information, the configuration information being used to instruct to enable a back-off function of a random access process; and switching from a two-step random access to a four-step random access by a back-off in response to a synchronization signal and PBCH block (SSB) based random access meeting a target condition.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may generate a report for one or more two-step random access channel (RACH) procedures between the UE and a base station (BS), wherein the RACH report includes at least one of an indication of a quantity of message A (MsgA) payloads transmitted during the one or more two-step RACH procedures on each beam of one or more beams associated with the BS, an indication of one or more parameters associated with each MsgA communication transmitted during the one or more two-step RACH procedures, or an indication of whether a respective signal strength for each beam, associated with the one or more two-step RACH procedures, satisfies a signal strength threshold. The UE may transmit the report to the BS. Numerous other aspects are provided.

The present application provides a method and a device in a node used for wireless communications. A node receives first information and second information, the second information being used to determine a first timing offset value; determines a first timing compensation value, and transmits a first signal; herein, a time interval length between a start time for transmission of the first signal and a reference time is equal to a target timing compensation value, where the start time for the first signal transmission is earlier than the reference time, the reference time being a boundary time for a reference time-domain resource unit, the first information is used to determine a time-domain position of the reference time-domain resource unit; the first timing compensation value and the first timing offset value are jointly used to determine the target timing compensation value. The present application can improve the random access performance.