To support devices with different bandwidth capabilities, a base station configures a first initial bandwidth part (BWP) of a first width within a bandwidth of the first cell (1002) and configures a second initial BWP of a second width, within the bandwidth of the first cell (1004). The base station transmits an indication of the first BWP in the first cell and an indication of the second BWP in the first cell or a second cell, to cause a first user equipment UE having a first bandwidth capability to access the first BWP, and a second UE having a second bandwidth capability to access the second BWP (1006).

A base station according to an embodiment of the present disclosure includes a generation unit (35) that generates a beacon including switching information (41) indicating whether to cooperatively use a frequency channel and a transmission unit (32) that transmits the beacon.

The present disclosure relates to a communication technique for combining, with IoT technology, a 5G communication system for supporting a higher data transmission rate than a 4G system, and a system therefor. The present disclosure may be applied to intelligent services, such as smart homes, smart buildings, smart cities, smart cars or connected cars, health care, digital education, retail businesses, and security and safety related services, on the basis of 5G communication technologies and IoT-related technologies. According to various embodiments of the present invention, a method and an apparatus for effectively transmitting data of a small size in a next-generation mobile communication system may be provided.

A method and an apparatus for transmitting a random access signal. The method includes receiving configuration information, wherein the configuration information indicates a random access preamble length, a random access signal subcarrier spacing, and a data subcarrier spacing, determining a subcarrier quantity parameter k based on at least one of the random access preamble length, the random access signal subcarrier spacing, or the data subcarrier spacing, generating a random access signal based on the subcarrier quantity parameter k, and sending the random access signal.

An information transmission method and a device are provided. The method is performed by an initiating node and includes: sending request to send Request To Send (RTS) information, where the RTS information includes identifier information of a responding node; and receiving confirm to send Confirm To Send (CTS) information from the responding node.

A channel access method, a terminal device, and a network device are provided. The method includes: monitoring a request to send-downlink control channel according to first configuration information of the request to send-downlink control channel; and determining, according to a monitoring result from monitoring the request to send-downlink control channel, whether to perform channel access.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive configuration information indicating at least one of: a configuration for requesting repetition for an uplink shared channel transmitted after receiving a contention-free random access (CFRA) message, or a configuration for dropping one or more repetitions of the uplink shared channel. The UE may request the repetition for the uplink shared channel if the configuration information indicates the configuration for requesting repetition. The UE may transmit the uplink shared channel based at least in part on the configuration information. Numerous other aspects are described.

A first device within a multi-link device having a plurality of wireless links including a first link and a second link, may include one or more processors configured to receive a first frame on the first link while communicating with a second device for transmission of a second frame on the second link. The one or more processors may decode a portion of the first frame to determine a first duration of no medium access. The one or more processors may determine, a second duration comprising a remaining transmission duration on the second link. The one or more processors may determine whether the first duration is greater than or equal to the second duration. In response to the first duration being greater than or equal to the second duration, the one or more processors may defer channel access on the first link until an end of the first duration.

A method and a user equipment (UE) for timing alignment is provided. The method includes maintaining a Timing Advance (TA) value as a first TA value; receiving, from a Base Station (BS), a TA command during a Random Access (RA) procedure; applying the TA command to set the TA value to a second TA value included in the TA command in a case that a first timing alignment timer is not running; determining whether a contention resolution for the RA procedure is successful; and when the contention resolution is not successful, setting the TA value to the first TA value in a case that a Configured Grant-based Small Data Transmission (CG-SDT) procedure is ongoing.

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, a system information block (SIB) that indicates a selected set of message repetition numbers from a plurality of sets of message repetition numbers. The UE may receive, from the base station, a bit field in a random access response (RAR) or downlink control information (DCI) that indicates a selected message repetition number from the selected set of message repetition numbers indicated in the SIB. The UE may transmit, to the base station, a message during a random access procedure based at least in part on the selected message repetition number. Numerous other aspects are described.