Abstract: There is provided a wireless communication device including a determination unit configured to determine whether a channel is clear or busy, and a transmission processing unit configured to transmit a hybrid ARQ (HARQ) to a communication device of a communication partner, in which the HARQ is transmitted using a first resource or a second resource, and in a case where transmission of the HARQ using the first resource has been failed through the determination by the carrier sense unit, the transmission processing unit transmits a HARQ using the second resource.

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 is provided which allows proper management of location information for a terminal moving in the air to reduce the power consumption of the terminal and to prevent the terminal from affecting communication. A wireless communication device is provided which includes a determination unit that determines whether the device is a device moving on the ground or a device moving in the air, a neighboring cell determination unit that determines whether or not identification information of a paging area acquired through common information transmitted from a base station is the same as identification information of a paging area for which an update was performed last time when the determination unit determines that the device is moving in the air, and a control unit that determines presence or absence of need for a paging area update on the basis of a condition for initiating a paging area update when the determination unit determines that the device is moving in the air.

Abstract: A communication device (20) includes a processing unit (232) that performs a NOMA transmission process on a partial range of transmission data to be transmitted to another communication device (40), the NOMA transmission process being signal processing for non-orthogonal multiple access, and a transmitting unit (235) that transmits data obtained after the NOMA transmission process to the another communication device.

Abstract: A communication device includes an obtaining unit that obtains predetermined information which is different than terminal IDs enabling identification of each of a plurality of communication devices with which another communication device performs radio communication; and a generating unit that, based on the predetermined information, generates common recognition information to be shared with the other communication device.

Abstract: A terminal device (2) according to the present disclosure includes a control unit (203). The control unit (203) acquires, from a base station apparatus (1), information about a signal waveform for use, of a plurality of signal waveforms including a single carrier signal, the signal waveform for use being used for downlink communication with the base station apparatus (1), the information being transmitted by using a predetermined signal waveform of the plurality of signal waveforms. The control unit (203) performs the downlink communication with the base station apparatus (1) by using the signal waveform for use, on the basis of the information.

Abstract: To provide a wireless communication apparatus that makes it possible to perform wireless communication more efficiently by switching setting or the like for transmission or reception in accordance with whether the wireless communication is non-orthogonal multiple access or orthogonal multiple access. [Solution] There is provided a wireless communication apparatus including: a communication section that performs wireless communication; and a control section that selects setting to be used for transmission control or reception control by the communication section in accordance with whether the wireless communication is non-orthogonal multiple access or orthogonal multiple access.

Abstract: A communication apparatus includes an acquisition unit to acquire, from a base station apparatus being connected, switching information including information used for wireless communication with a movably configured base station apparatus to be a switching destination candidate, a determination unit to determine whether or not to switch a base station apparatus to be a connection destination, and a connection unit to, upon determining by the determination unit to switch the base station apparatus to be the connection destination, execute connection to the base station apparatus to be the switching destination candidate on a basis of the switching information.

Abstract: [Object] To provide a communication device that enables degradation in the quality of communication between a base station device and a terminal device to be avoided when a sidelink channel is set. [Solution] There is provided a communication device including: a control unit configured to allocate a predetermined gap to a boundary of a resource of a channel to be used in inter-device communication with a resource other than the resource of the channel in a communication system in which signals from different transmission sources are mixed and placed.

Abstract: A method of operating a communications device in a wireless communications network comprises transmitting a random access message on a wireless access interface, the random access message comprising a selected random access preamble. The method further comprises receiving a resource allocation message comprising an indication of downlink communications resources allocated for the transmission of a random access response message combined with a radio network terminal identifier which identifies the communications device which transmitted the random access message, determining that the resource allocation message identifies the communications device, and in response to determining that the resource allocation message identities the communications device, decoding the signals transmitted using the allocated downlink communications resources.

Abstract: [Object] To enable multiplexing configurations of a plurality of uplink control channels in a preferred mode in a communication system in which a base station device and a terminal device communicate with each other. [Solution] A communication device includes: a communication unit configured to perform wireless communication; and a control unit configured to selectively switch between a first physical channel and a second physical channel in which both conditions of the number of symbols and the number of resource blocks are different from each other and which are allocated during a predetermined period in a time direction to transmit control information to a base station.

Abstract: A communication device includes: a communication unit that performs wireless communication; and a control unit (103) that performs control so that a plurality of synchronization signals is patterned and arranged in regions to which resources of the wireless communication are allocated and is transmitted to another terminal device, the plurality of synchronization signals being associated with each of a plurality of beams allocated to be available for inter-device communication between different terminal devices, in which the control unit (103) performs control so that a pattern in which the plurality of synchronization signals is arranged is switched according to a predetermined condition.

Abstract: [Object] To provide a mechanism that makes it possible to reduce overhead of control information and flexibly control terminal devices. [Solution] There is provided a base station device including a transmission processing unit configured to transmit first control information including information specific to a terminal group, to the terminal group including one or more terminal devices, and transmit second control information to the terminal group on a basis of the information specific to the terminal group.

Abstract: A control unit receives at least one of a plurality of synchronization signals transmitted after undergoing beam sweeping via a wireless communication unit. The beam sweeping includes each of the plurality of synchronization signals forming a different beam and transmitted from the base station during a predetermined period of time. The control unit determines, from a plurality of pieces of beam sweeping configuration information, one piece of the configuration information based on priority between a plurality of types of beam sweeping and receives the synchronization signal or report the received synchronization signal to the base station using the one piece of the configuration information determined based on the priority. The number of the synchronization signals transmitted during a predetermined period of time varies among the plurality of pieces of beam sweeping configuration information.

Abstract: Provided is a mechanism which is capable of improving wireless link quality regarding transmission from a terminal device on the ground to a non-ground station device. A terminal device including a control unit configured to acquire information regarding a type of a base station device and control a transmission timing of a signal to the base station device on the basis of the information regarding the type of the base station device.

Abstract: A communication control device (30) according to the present disclosure includes a control unit (34). The control unit (34) notifies at least one of a first communication device (401) and a second communication device (402) of information on carrier sense in sidelink communication in an unlicensed band between the first communication device (401) and the second communication device (402).

Abstract: It is possible to accommodate various communication traffics in a more suitable manner in inter-device communication such as V2X communication. A communication device (100) includes: a communication unit (220) that performs wireless communication; an acquisition unit (243) that acquires information regarding a control resource set from another device, the control resource set including one or more control resources allocated to a partial area included in a control area and defined for every purpose of resources allocated to a data area; and a control unit (241) that extracts the control resource set according to the acquired information regarding the control resource set and controls inter-device communication with another communication device via the wireless communication on the basis of the control resource set.

Abstract: A communication device includes: a communication unit that, while wirelessly communicating in a first communication mode using a first resource of a predetermined frequency channel, wirelessly communicates in a second communication mode in which a lower delay is required than in the first communication mode using a second resource at least partially overlapping the first resource on a frequency axis and a time axis; and a notification unit that notifies a reception destination in the first communication mode, of the second resource.

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: In a wireless communication terminal (50) that performs repetition transmission in which predetermined data is repeatedly transmitted, a wireless communication unit (51) receives continuation information which is information on continuation of the repetition transmission before and after handover, and a control unit (55) performs the repetition transmission after the handover based on the continuation information.