Abstract: A user equipment in a radio communication system including the user equipment and a base station, including: an uplink transmission power information calculation unit configured to calculate uplink transmission power information of a serving cell using a parameter that may be changed dynamically; and a signal transmission unit configured to include, in control information in which the uplink transmission power information is set, identification information for identifying a parameter used for calculation of the uplink transmission power information, and to transmit the control information in which the identification information is included to the base station.

Abstract: Provided is a user terminal which is used in a future wireless communication system which bundles a plurality of slots (sub-frames) in the time direction. When applying bundling, in the leading slot, Additional DMRS (Demodulation Reference Signal) is mapped according to channel quality (factors which lead to a deterioration in quality, such as Doppler shift, propagation environment, etc.), and in second and subsequent slots, the existence of Additional DMRS mapping or the mapping position is selected on the basis of rules concerning Additional DMRS mapping. The control unit (203) of the user terminal (20) specifies, in second and subsequent slots, the existence of Additional DMRS mapping and the mapping position on the basis of the aforementioned rules.

Abstract: A base station apparatus including: a transmission unit that transmits a first activation signal, which is an activation signal that becomes a trigger for monitoring a paging occasion, for each group of grouped user equipments and transmits a second activation signal, which is a activation signal common to multiple groups, wherein the transmission unit transmits, to the user equipment, information instructing whether to perform monitoring of the second activation signal or information indirectly instructing whether to perform monitoring of the second activation signal.

Abstract: A user equipment includes a receiving unit that receives, from a base station apparatus, a resource configuration used for uplink and downlink in time division duplex and information indicating an allocation pattern of a resource used for uplink and downlink in time division duplex in a radio access technology that differs from a radio access technology of the user equipment; a control unit that determines, based on the resource configuration and the information indicating the allocation pattern, a resource used for the uplink and the downlink in the time division duplex used by the user equipment; and a communication unit that performs communication with the base station apparatus on the determined resource used for the uplink and the downlink in the time division duplex.

Abstract: A user terminal according to one aspect of the present disclosure includes: a transmission section that transmits an uplink control channel over multiple slots; and a control section that, when changing an active Bandwidth Part (BWP) during the transmission of the uplink control channel, controls the transmission of the uplink control channel after the BWP changing. According to the one aspect of the present disclosure, it is possible to prevent a communication throughput from lowering even when a BWP is switched.

Abstract: A user equipment including: a transmission unit that transmits a signal to a base station apparatus using a preconfigured uplink resource; a reception unit that receives a signal from the base station apparatus; and a control unit that starts or restarts a predetermined timer in response to receiving the signal from the base station apparatus.

Abstract: A user terminal is disclosed including a transmitting/receiving section that performs transmission and reception by Time Division Duplex (TDD) by using a DL/UL frequency band pair that has a UL frequency band and a DL frequency band configured in a frequency direction in a carrier; and a control section that performs control to switch between a first DL/UL frequency band pair and a second DL/UL frequency band pair, and performs the transmission and the reception. In another aspect, a radio communication method of a user terminal is also disclosed.

Abstract: A terminal is disclosed including a receiver that receives a demodulation reference signal; and a processor that controls reception of the demodulation reference signal based on a parameter related to mapping of the demodulation reference signal, wherein when the parameter is configured to a specific value, a specific multiplexing method for the demodulation reference signal is supported. In other aspects, another terminal is also disclosed.

Abstract: Techniques for receiving repeatedly transmitted broadcast information appropriately are disclosed. One aspect of the present invention relates to a base station including a communication control unit configured to control radio communication with user equipment and a broadcast information transmission unit configured to transmit broadcast information, wherein the broadcast information transmission unit includes scheduling information for second system information in first system information and broadcasts the second system information in accordance with the scheduling information.

Abstract: To appropriately communicate even when a shortened TTI is applied. A user terminal that communicates using a first Transmission Time Interval (TTI) and a second TTI whose TTI length is shorter than a TTI length of the first TTI, includes a receiving section that receives an L1/L2 control channel transmitted from a radio base station, and a control section that controls receiving of a first L1/L2 control channel transmitted for each first TTI and a second L1/L2 control channel transmitted at the second TTI.

Abstract: A user equipment includes a control unit that sets an operation mode of the user equipment to an idle mode; and a transmission unit that transmits, while a time alignment retained by the control unit is valid, information indicating presence of the user equipment on each of transmission resources with a predetermined frequency in a time direction, from among a plurality of transmission resources that is preconfigured for transmitting data in the idle mode and arranged in the time direction, wherein the transmission unit stops transmitting the information indicating the presence of the user equipment in response detecting that the time alignment is invalid.

Abstract: To suppress continuation of deterioration of communication quality due to beam failure, also in the case of using beam forming in both transmission and reception, a user terminal according to one aspect of the present invention is characterized by having a control section that controls a transmission beam, and a transmission section that transmits a signal using the transmission beam, where when the control section updates the transmission beam, the transmission section transmits information about transmission beam update, using an updated transmission beam.

Abstract: A radio communication method according to an aspect of the present invention includes: receiving, at a first base station, at least a part of downlink control information via a downlink shared channel from a second base station; receiving, at user terminal, downlink control information via a downlink control channel from the first base station; and controlling, at the user terminal, reception of a downlink shared channel from the first base station or transmission of an uplink shared channel to the first base station on the basis of the downlink control information.

Abstract: There are provided a user terminal, a radio base station, and a radio communication method in which a wake-up signal (WUS) is capable of being suitably introduced under the presence of multiple user terminals. The user terminal includes a reception section which receives a wake-up signal, and a control section which detects an identifier associated with the wake-up signal and controls, based on the detected identifier, reception of a control signal associated with the wake-up signal. The number of the wake-up signals is smaller than a number relating to a terminal group.

Abstract: Provided is a user equipment including a transmitting unit that indicates release information of a wireless communication system supported by the user equipment to another user equipment and a receiving unit that receives release information of a wireless communication system supported by the another user equipment from the another user equipment. The another user equipment supports terminal-to-terminal direct communication.

Abstract: In order to appropriately control communication even in a case where a large number of terminals exists in a radio communication system, an aspect of a terminal of the present disclosure include: a transmitting/receiving section that performs transmission and reception with another terminal; and a control section that performs control to share at least one of information regarding a transmission configuration indicator state (TCI state), information regarding quasi-co-location (QCL), and position information with the another terminal.

Abstract: Embodiments of the present invention provide a user equipment and a base station that may be used in a wireless communication system, or a method executed by a user equipment, a method executed by a base station. The user equipment in the embodiments of the present invention includes: an obtaining unit, configured to obtain a basic sequence table, the basic sequence table comprising at least two sequences; a receiving unit, configured to receive sequence selection information related to an operation to be executed by the user equipment; and a control unit, configured to determine an operation sequence for the operation according to the basic sequence table and the sequence selection information.

Abstract: A user equipment includes a control unit that sets an operation mode of the user equipment to an idle mode; a transmission unit that transmits data by using a preconfigured radio resource for transmitting data in the idle mode; and a reception unit that receives transmission acknowledgement information for the data by monitoring at least one search space from a paging search space or an additional search space that is to be monitored in the idle mode.

Abstract: The present invention is designed so that, in a non-stand-alone radio communication system, multiple UL signals of varying RATs are transmitted properly. According to the present invention, a user terminal has a transmission section that transmits both a first uplink (UL) signal of a first radio access technology (RAT) and a second UL signal of a second RAT, or a single UL signal in which the first UL signal and the second UL signal are multiplexed, by using a UL carrier of the first RAT, and a control section that controls frequency division multiplexing and/or time division multiplexing of the first UL signal and the second UL signal in the UL carrier, or multiplexing of the first UL signal and the second UL signal in the single UL signal.

Abstract: The present invention is designed so that beamforming can be executed properly even when user terminals are in idle mode. A user terminal according to the present invention communicates with a radio base station that uses a plurality of beam patterns, and has a receiving section that performs a receiving process for paging information which is transmitted in varying beam patterns, in a paging time period comprised of a plurality of unit periods, and a transmission section that transmits a response signal in response to receipt of the paging information.