Abstract: A communication device is a device in which a radio connection state with another communication device changes from an unconnected state to a predetermined connected state by performing a predetermined connection procedure. The communication device acquires predetermined information for transmitting data to the another communication device in the unconnected state. The communication device then transmits the data to the another communication device in the unconnected state based on the predetermined information.

Abstract: A terminal device (200) performs sidelink communication with another terminal device. The terminal device (200) includes a control unit (240). The control unit (240) acquires resource pool information regarding a resource pool allocated by a base station device (100) for sidelink communication with another terminal device. The control unit (240) transmits control information to another terminal device by using at least one of a plurality of sidelink control channels allocated to a slot included in the resource pool in a time axis direction.

Abstract: A mobile device including circuitry configured to: receive one or more synchronization signal blocks periodically transmitted from a base station, each synchronization signal block containing Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS) and Physical Broadcast Channel (PBCH), wherein the PBCH carries a Master Information Block (MIB) which contains information of subcarrier interval for System Information Block type 1 (SIB1); identify an index of a first synchronization signal block among the one or more synchronization signal blocks; and receive Physical Downlink Control Channel (PDCCH) being located in a common search space and including an added Cyclic Redundancy Check (CRC) which is scrambled by System Information Radio Network Temporary Identifier (SI-RNTI), and Physical Downlink Shared Channel (PDSCH) carrying the SIB1, the PDSCH being scheduled by the PDCCH.

Abstract: There is provided a communication apparatus including: a communication unit that performs radio communication; a control unit that controls an operation of sensing resources to be used in a communication scheme used for performing inter-device communication with other devices, in which the control unit controls to sense the resource in a predetermined minimum unit on a time axis.

Abstract: A wireless communication device including an acquisition unit that acquires an information set related to a transmission parameter when transmitting a resource arbitrarily selected from a predetermined resource pool to a transmission target (for example, performing grant-free transmission), and a setting unit that sets the transmission parameter using the information set.

Abstract: A user equipment that includes a radio transceiver that performs wireless communication in an unlicensed band, and circuitry that performs RLM using downlink physical signals, measures a radio link quality, evaluates the radio link quality against thresholds Qout and Qin, indicates out-of-sync to higher layers from a physical layer, indicates in-sync to the higher layers from the physical layer, starts a first timer when the out-of-sync is consecutively indicated to the higher layers from the physical layer, and determines that a radio link failure occurs in a case where the first timer expires without consecutive in-sync indications, and the first timer is different from a second timer used to determine whether a radio link failure occurs in a wireless communication in one or more serving cells in a licensed band.

Abstract: A terminal device that performs communication with a base station, including: a wireless transmitter that transmits an uplink channel using a first signal waveform or a second signal waveform, the first signal waveform is a signal generated without performing a predetermined conversion process, and the second signal waveform is a signal uenerated by performing the predetermined conversion process, in a case where the uplink channel is a predetermined control channel, the second signal waveform is used for transmitting the uplink channel, and in a case where the uplink channel is a predetermined shared channel, either the first signal waveform or the second signal waveform is used for transmitting the uplink channel based on control information uniquely notified from the base station to the terminal device.

Abstract: Method of operating a communications device receiving from a wireless access network a configured grant of physical uplink shared channel, CG-PUSCH, resources of a wireless access interface which includes physical resources of an unlicensed frequency bandwidth. The CG-PUSCH resources provide flexible transmission occasions to transmit uplink transport blocks as a plurality of K repetitions. Each repetition is one of a plurality of redundancy versions, the opportunities of the CG-PUSCH are accessible for transmission according to a contention access procedure. The procedure is performed to transmit the uplink transport blocks as a plurality of K repetitions in the transmission occasions. For each uplink transport block, uplink control information, UCI, is transmitted. The UCI relates to the CG. The CG-UCI provides an indication for the transmitted K plurality of repetitions and is multiplexed into a subset of the transmitted K plurality of repetitions.

Abstract: There is provided a communication system in which a base station apparatus communicates with a terminal apparatus and a communication apparatus flexibly designed to address diverse use cases so as to significantly enhance the transmission efficiency of the system as a whole. The communication apparatus includes an acquisition section that acquires information from an apparatus in wireless communication, and a control section that selects either orthogonal multiple access communication or non-orthogonal multiple access communication for communication with the apparatus on the basis of the information acquired by the acquisition section.

Abstract: The present technology relates to a communication device and a communication method capable of achieving low-delay communication stably on an unlicensed band. The communication device includes a first communication unit configured to communicate on a first frequency band that is an unlicensed band and a second communication unit configured to communicate on a second frequency band that is an unlicensed band different from the first frequency band. A controller of the communication device is configured to control transmission of data using either one frequency band of communication on the first frequency band or communication on the second frequency band on the basis of information regarding a resource on the second frequency band transmitted from a first communication device. The present technology is applicable to, for example, a communication device and the like that conducts wireless communication standardized by IEEE 802.11.

Abstract: A communication device includes: a communication unit that performs wireless communication; a notification unit that notifies another communication device of first information regarding setting related to measurement of a communication environment with the other communication device transmitting a reference signal, on the basis of predetermined conditions; and an acquisition unit that acquires second information regarding the setting from the other communication device.

Abstract: Provided are a communication device and a communication method capable of further improving the quality between radio links in a communication system in which a base station device and the communication device communicate with each other. A communication device (50) according to the present disclosure includes a receiver (511a) and a transmitter (512d). The receiver (511a) receives a synchronization signal transmitted from a base station device (20, 30). The transmitter (512d) transmits a physical random access channel (PRACH) including a feature capable of uniquely identifying the synchronization signal received by a receiver (511a) and/or a PRACH resource to the base station device (20, 30).

Abstract: A wireless communication device (200) performs sidelink communication by a plurality of the wireless communication devices (200). The wireless communication device (200) includes a control unit (240). The control unit (240) acquires determination information for determining a plurality of master devices (200M) that communicate with a base station (100) in sidelink communication. The control unit (240) determines whether or not an own device is one of the plurality of master devices (200M) based on the determination information.

Abstract: There is provided a wireless communication device capable of making the wireless communication link more stable in a communication system using an unlicensed band. There is provided a wireless communication device including a determination unit (243) configured to determine whether a channel is clear or busy, a communication unit (220) configured to transmit an uplink signal of a RACH procedure, and a setting unit (243) configured to set at least a first resource and a second resource to transmit the uplink signal, in which the first resource is selected from a set of resources set by information in an RRC layer, and the second resource is designated by downlink information in a physical layer.

Abstract: A method of transmitting control information, the method comprising selecting third uplink communication resources for the transmission of first control information having a first priority and second control information having a second priority different from the first priority, selecting a first subset of the third uplink communication resources for the transmission of the first control information, selecting a second subset of the third uplink communication resources for the transmission of the second control information, independently encoding the first control information and the second control information, and transmitting to an infrastructure equipment the encoded first control information using the first subset of the third uplink communication resources and the encoded second control information using the second subset of the third uplink communication resources.

Abstract: A communication device includes a reception unit that receives, from the base station, a physical control signal used to control a physical layer of the communication device, the physical control signal including beam information about a beam used for communication between the communication device and the terminal device; and a communication control unit that controls a beam used for communication between the communication device and the terminal device based on the beam information.

Abstract: Provided is a terminal device including a measuring unit that performs downlink measurement on the basis of a downlink reference signal, and a transmitting unit that transmits a first uplink reference signal on the basis of first setting related to measurement for radio resource management. The transmitting unit transmits the first uplink reference signal in a case in which a first condition is satisfied, and the measuring unit performs the downlink measurement in a case in which a second condition is satisfied.

Abstract: Provided is a communication apparatus (200) including: an acquisition unit (241) that acquires, from a base station apparatus (100), information for operating as a master for controlling a sidelink communication between other apparatuses; and a control unit (240) that performs a process for operating as the master on the basis of the information acquired by the acquisition unit.

Abstract: A method of operating a communications device comprises determining that the communications device can transmit data via communications resources of an unlicensed channel of a wireless access interface, which is shared in time with at least one of an infrastructure equipment of a wireless communications network and one or more other communications devices which can also transmit in the unlicensed channel. The transmission of the data by the communications device is arranged in time according to a fixed frame period (FFP) including a channel occupancy time (COT) for transmitting the data and an idle period. The communications device can transmit the data on the unlicensed channel by detecting that none of the infrastructure equipment and the one or more other communications devices are transmitting on the unlicensed channel as part of a contentious channel access phase.

Abstract: To provide a wireless communication device which enables reliable detection of a downlink without using a CRS. There is provided a wireless communication device including a communication unit (220) configured to perform wireless communication using an unlicensed band, and a detecting unit (241) configured to detect a downlink on the basis of a second downlink signal different from a first downlink signal which is periodically transmitted, in which the detecting unit starts PDCCH monitoring after detecting a downlink.