Abstract: A communication device includes a transmitter that transmits data; and a controller that causes, based on information indicating priority levels of respective radio resources of a plurality of radio resources and a priority level of the data, the transmitter to transmit the data using a radio resource provided with a priority level corresponding to the priority level of the data.

Abstract: Provided is a user equipment in a radio communication system including a base station and the user equipment. The user equipment includes: a reception unit that receives an instruction related to a calculation method of a channel quality indicator, which is to be reported to the base station, from the base station; and a reporting unit that reports an index of a channel quality indicator, which is calculated in accordance with the instruction related to the calculation method of the channel quality indicator, to the base station.

Abstract: A user terminal includes: a reception section that receives a downlink signal including a demodulation reference signal; a signal separation section that separates the demodulation reference signal from the downlink signal based on an expansion pattern obtained by applying a set expansion method to expand a basic pattern; and a channel estimation section that uses the demodulation reference signal to compute a channel estimation value. The basic pattern indicates resource elements to which a demodulation reference signal of 8 layers is mapped, and the expansion pattern indicates resource elements to which a demodulation reference signal of 16 layers is mapped.

Abstract: A user terminal of the present invention includes a receiving section that receives system information including an index value indicating a first offset value that is a value based on a certain bandwidth or zero, and a control section that determines frequency resources for an uplink control channel, based on the first offset value, the frequency resources frequency-hopping in the certain bandwidth.

Abstract: A user equipment for communicating with a base station in a radio communication system that supports narrow band communication is disclosed including a receiver that receives, from the base station via a first frequency band, information for identifying a second frequency band. A synchronization signal and broadcast information are transmitted on the first frequency band, and the synchronization signal and the broadcast information are not transmitted on the second frequency band. The user equipment further includes a processor that identifies a center frequency of the second frequency band based on the received information.

Abstract: A user apparatus has a request unit configured to transmit a scheduling request to a base station apparatus, an acquisition unit configured to receive information indicative of a resource pool based on the scheduling request from the base station apparatus, and a communication unit configured to perform sidelink transmission to another user apparatus using the resource pool.

Abstract: A user terminal includes a transmitting section that transmits a random access preamble in a carrier for which listening before transmission is employed, and a control section that controls transmission of the random access preamble, based on configuration information different from certain configuration information to be used for at least one of random access in a case of not supporting communication in the carrier and random access in a carrier for which listening before transmission is not employed.

Abstract: The present invention is designed so that cross-carrier scheduling is carried out adequately even when the number of component carriers that can be configured in a user terminal is expanded compared to that of existing systems. A user terminal can communicate by using six or more component carriers, and has a receiving section that receives downlink control information including a carrier indicator field (CIF); and a control section that controls a receiving process of a downlink shared channel and/or a transmission process of an uplink shared channel in a predetermined component carrier based on the CIF, and the receiving section receives downlink control information including the same CIF value from different component carriers; and the control section determines the predetermined component carrier, considering an offset that is configured to a CIF value of each component carrier that transmits downlink control information including the CIF.

Abstract: A user terminal according to one aspect of the present disclosure includes: a receiving section that receives downlink control information on a downlink control channel, the downlink control information including information related to activation of a cell and information related to a trigger of channel state measurement; and a control section that controls the activation of the cell based on the information related to the activation, and controls the channel state measurement of the cell based on the information related to the trigger of the channel state measurement. According to the one aspect of the present disclosure, it is possible to control activation at a high speed.

Abstract: Provided is a user equipment in a radio communication system including a base station and the user equipment. The user equipment includes: an acquisition unit that acquires a first transmission power parameter in a case of using OFDM in an uplink and a second transmission power parameter in a case of using DFT-s-OFDM in the uplink; and a control unit that controls transmission power of an uplink signal by using the first transmission power parameter in a case of using ODFM in the uplink, and controls transmission power of the uplink signal by using the second transmission power parameter in a case of using DFT-s-OFDM in the uplink.

Abstract: A radio communication apparatus functioning as a transmitter in a radio communication system including the transmitter and a receiver includes a first data generation unit that generates first data which are to be transmitted in accordance with a first transmission scheme, a second data generation unit that generates second data which are to be transmitted in accordance with a second transmission scheme, and a transmission unit that, when the second data are generated during transmission of the first data, punctures a portion in which a predetermined signal is transmitted in a resource allocated for the transmission of the first data, transmits the first data in an unpunctured portion, and transmits the second data in the punctured portion.

Abstract: To appropriately control communication using at least one of a synchronization signal block and a reference signal even when communication is performed using a BWP, according to one aspect of the present disclosure, there is provided a user terminal including: a receiving section that receives at least one of a synchronization signal block and a given reference signal in a given bandwidth part (BWP); and a control section that decides whether to apply a synchronization signal block to a specific operation based on at least one of information regarding a frequency position of a synchronization signal block commonly reported by a serving cell and information regarding a frequency position of a synchronization signal block in the BWP.

Abstract: A terminal is disclosed including a receiver that monitors downlink control channel candidates in a predetermined frequency bandwidth out of a plurality of frequency bandwidths; and a processor that performs a control to change the predetermined frequency bandwidth in accordance with a predetermined timer. In another aspect, a radio communication method is also disclosed.

Abstract: To suitably perform communication using a new control unit, even in the case of using the new control unit comprised of the number of subcarriers different from that of the existing resource block, a user terminal according to one aspect of the present invention is characterized by having a receiving section that receives information on a first resource unit comprised of subcarriers lower in number than a predetermined number, and a control section which identifies a frequency region of a second resource unit comprised of the same number of subcarriers as the predetermined number based on the information, and controls communication using the first resource unit inside the frequency region.

Abstract: A user terminal includes: a receiving section that receives at least one of a transmission request signal and a receivable signal according to a second radio communication standard in a carrier that applies listening to transmission of a first radio communication standard; and a control section that controls the listening based on a time parameter indicated in at least one of the transmission request signal and the receivable signal. According to an aspect of the present disclosure, it is possible to improve a collision avoidance rate of data transmitted according to a listening result.

Abstract: A communication device includes a transmitter that transmits data; and a controller that generates, in response to a predetermined trigger, a request signal including information on a time and frequency location of a radio resource to be used by the transmitter.

Abstract: A user terminal that includes a receiver that receives a synchronization signal in accordance with timing information provided from a network and a processor that controls a measurement of a channel state information reference signal (CSI-RS). The CSI-RS corresponds to the received synchronization signal, and is based on information about a time-frequency resource configuration and a scrambling ID of the CSI-RS provided from the network.

Abstract: A communication device includes a receiving unit that receives at least one of configuration information of a same center frequency used for downlink reception and sidelink reception in one slot or configuration information of a same center frequency used for uplink transmission and sidelink transmission in the one slot; and a control unit that configures, based on the received configuration information, at least one of the same center frequency for the downlink reception and the sidelink reception in the one slot or the same center frequency for the uplink transmission and the sidelink transmission in the one slot.

Abstract: In user terminal 20, reception section 202 and signal separation section 204 receive a data signal and a demodulation reference signal mapped to a downlink resource, and demodulation and decoding section 208 uses the demodulation reference signal to demodulate the data signal. A correction reference signal is mapped to the downlink resource according to a parameter related to user terminal 20 signaled to user terminal 20. Reception section 202 and signal separation section 204 specify a mapping pattern of the correction reference signal based on the parameter, and demodulation and decoding section 208 uses the correction reference signal to demodulate the data signal.

Abstract: Provided is a user terminal to be used in a future wireless communication system which bundles a plurality of slots (sub-frames) in a time direction. When applying bundling, a Front-loaded DMRS (Demodulation Reference Signal) is mapped to the rear of a control channel in a leading slot, and in second and subsequent slots, mapping is carried out on the basis of a rule to prevent conflict between the Front-loaded DMRS and the control channel. A control unit (203) of a user terminal (20) stipulates, in second and subsequent slots, the mapping configuration of the Front-loaded DMRS (the existence of mapping and/or the mapping position) on the basis of the aforementioned rules.