The present technology relates to a communication device and a communication method that enable the occupancy condition of a transmission channel to be recognized with ease. There is provided a communication device including a controller configured to perform controlling of transmitting a data signal to another communication device via a transmission channel, in which the controller performs controlling of selecting a training pattern corresponding to an occupancy time of the transmission channel among a plurality of types of training patterns and transmitting a signal with the selected training pattern attached to the another communication device via the transmission channel. The present technology can be applied to, for example, a wireless LAN system.

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 STR in a wireless LAN that supports multi-links are disclosed. An operating method of a first communication node comprises the steps of: transmitting a first frame to a second communication node through a first link from among multi-links; receiving, from the second communication node, a response frame for the first frame through the first link; checking a channel occupancy time in a second link from among the multi-links on the basis of first information included in the response frame; and performing a sensing operation in a preset section after the end of the channel occupancy time in the second link.

The present invention relates to a method of performing a Random Access (RA) procedure in a user equipment (UE) in a wireless communication system. Especially, the method includes the steps of configuring at least one first bandwidth part (BWP) on which the RA procedure is performed for transmitting data in a Radio Resource Control (RRC) INACTIVE state; configuring a second BWP on which the RA procedure is performed for shifting to a RRC CONNECTED state from the RRC INACTIVE state; performing the RA procedure on the at least one first BWP when the UE determines to transmit the data in the RRC INACTIVE state; and performing the RA procedure on the second BWP when the UE determines to shift to the RRC CONNECTED state from the RRC INACTIVE state.

Provided in embodiments of the present disclosure are a data transmission method, and a terminal. The method includes: when a terminal meets a first condition of using a first scheme to transmit data, using the first scheme to transmit data; when the terminal meets a second condition of using a second scheme to transmit data, using the second scheme to transmit data; or when the terminal meets the first condition of using the first scheme to transmit data and the second condition of using the second scheme to transmit data, using any one of the first scheme and the second scheme to transmit data, wherein the first scheme is a scheme without radio resource control (RRC) signaling, and the second scheme is one of direct data transmission schemes other than the first scheme. The embodiments of the present disclosure realize selection of a data transmission scheme in a process of transmitting small data.

Embodiments of this application disclose a channel puncture mode indication method and a related apparatus, which are applied to a wireless local area network (WLAN) system, for example, a WLAN system supporting 802.11be. The method includes: An access point sends a multi-user request to send MU-RTS frame, where the MU-RTS frame includes a common information field, the common information field includes channel puncture information, and the channel puncture information indicates whether at least one 20 MHz channel is occupied.

Provided in embodiments of the present disclosure are a wireless communication method, a terminal device, and a network device. The wireless communication method includes: determining, by a terminal device, a start time of a time window for random access according to a first Round Trip Time (RTT) offset value, or determining, by the terminal device, the start time of the time window for random access according to a first RTT offset value group. Each RTT offset value in the first RTT offset value group corresponds to an RTT interval, respectively.

A terminal includes a receiving unit that receives control information transmitted on a second cell, the control information including information used to assign a resource for a downlink shared channel reception or a resource for an uplink shared channel transmission in a first cell; and a control unit that determines at least one of a measurement of a channel state information reference signal (CSI-RS), a measurement of a tracking reference signal (TRS), a transmission of a sounding reference signal (SRS), or a transmission of a physical random access channel (PRACH) is triggered, regardless of a content of information other than the information used to assign the resource included in the control information.

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.