Abstract: An aspect of a user terminal according to the present invention includes: a receiving section that receives downlink shared channels respectively transmitted from a plurality of transmission/reception points; and a control section that performs control to apply a same type of a codebook for a transmission confirmation signal to a plurality of pieces of retransmission control information for each of the downlink shared channels, and include the plurality of pieces of retransmission control information in a same codebook for the transmission confirmation signal and transmit the same codebook for the transmission confirmation signal.

Abstract: A user terminal includes: a control section that determines a set of one or more candidate occasions for reception of a downlink shared channel available in a time unit, based on a Hybrid Automatic Repeat reQuest-ACKnowledge (HARQ-ACK) timing value using a same or different time unit between a plurality of services and a format of the time unit; and a transmitting section that transmits a codebook being determined based on the set of the one or more candidate occasions.

Abstract: A user terminal includes: a control section that determines a set of one or more candidate occasions for reception of a downlink shared channel available in a time unit, based on a HARQ-ACK timing value using the time unit shorter than a slot and a format of the time unit; and a transmitting section that transmits a codebook being determined based on the set of the one or more candidate occasions.

Abstract: A user terminal includes: a control section that controls monitoring of one search space set or a plurality of search space sets associated with a plurality of control resource sets; and a receiving section that receives downlink control information that is mapped on a downlink control channel candidate included in the one search space set or a plurality of downlink control channel candidates respectively included in the plurality of search space sets.

Abstract: To properly control half-duplex communication in future radio communication systems, a user terminal according to one aspect of the present disclosure has a receiving section that receives slot format information for designating a slot format of a cell, and a control section that determines a slot format in each cell based on at least one of content designated by each slot format information and a signal type used in transmission of each slot format information, in the case of receiving a plurality of pieces of slot format information.

Abstract: To appropriately control half-duplex communication in a future radio communication system, one aspect of a user terminal according to the present disclosure includes: a reception section that receives slot format information that indicates a slot format of a cell; and a control section, when transmission and reception in transmission directions are instructed, performs control to perform transmission and reception in a given cell and to not perform transmission and reception in another cell based on a method for instructing transmission and reception in each cell, the transmission directions being different between a plurality of cells for which slot formats are configured to flexible.

Abstract: A user terminal according to one aspect of the present disclosure includes: a receiving section that receives a plurality of downlink control information that indicate time units in a slot; and a control section that determines at least one of a codebook and an uplink control channel resource, the codebook being mapped with a plurality of transmission acknowledgement information for a plurality of downlink shared channels respectively scheduled by the plurality of downlink control information, and the uplink control channel resource being used to transmit the plurality of transmission acknowledgement information.

Abstract: A terminal includes: a reception section that receives adjustment information for adjusting a communication timing based on a reference time; and a control section that controls a granularity of adjusting the communication timing according to a size of the adjustment information.

Abstract: In order to appropriately control repetition transmission using one or more transmission/reception points, user terminal according to one aspect of the present disclosure includes: a control section that determines a given condition applied to each repetition of repetition transmission based on a set of transmission parameters configured for each repetition and information included in downlink control information instructing the repetition transmission; and a receiving section that receives a downlink shared channel repeatedly transmitted from one or more transmission/reception points based on the given condition.

Abstract: Provided is a terminal that includes a reception section which receives adjustment information for adjusting a communication timing that is based on a reference point in time, and a control section which determines a specific timing for receiving the adjustment information.

Abstract: According to one aspect of the present disclosure, a user terminal includes a control section that determines, when an uplink control channel (PUCCH) repetition and a dynamic hybrid automatic repeat reQuest acknowledgement (HARQ-ACK) codebook are configured, a codebook for PUCCH transmission per slot based on at least one of a total downlink assignment index (T-DAI), a counter downlink assignment index (C-DAI), a timing from reception of a physical downlink shared channel (PDSCH) to transmission of the HARQ-ACK corresponding to the PDSCH and repetition factor, and a transmitting section that transmits HARQ-ACK based on the codebook by applying PUCCH repetition to the HARQ-ACK. According to one aspect of the present disclosure, it is possible to appropriately transmit the UCI even when the PUCCH repetition is used.

Abstract: For appropriately transmitting a delivery acknowledgement signal even in a case where at least one of a transmission timing and a resource of the delivery acknowledgement signal is flexibly set, a base station according to an aspect of the present disclosure includes a transmitting section that transmits downlink control information used for scheduling a downlink shared channel, a receiving section that receives a delivery acknowledgement signal for the downlink shared channel, and a control section that performs, when the delivery acknowledgement signal is transmitted using a downlink allocation index included in the downlink control information for each group determined based on an uplink control channel resource designated using the downlink control information, control so that different uplink control channel resources in same slot are not designated by the downlink control information.

Abstract: A user equipment includes a receiving unit that receives information indicating a resource to be used for inter-terminal direct communication; and a transmitting unit that executes a transmission in the inter-terminal direct communication based on the information indicating the resource, wherein the information indicating the resource is a semi-static UE (User Equipment) dedicated configuration or a dynamic configuration that includes information in which the resource to be used for the inter-terminal direct communication is overwritten on an uplink resource or a flexible resource that is to be time division multiplexed in a semi-static UE common configuration.

Abstract: For appropriately transmitting a delivery acknowledgement signal in a case where at least one of a transmission timing and a resource of the delivery acknowledgement signal is flexibly set, a user terminal according to an aspect of the present disclosure includes a receiving section that receives a downlink shared channel scheduled using downlink control information, a transmitting section that transmits a delivery acknowledgement signal for the downlink shared channel, and a control section that controls transmission of the delivery acknowledgement signal using a downlink allocation index included in the downlink control information for each group determined based on a transmission slot for an uplink control channel designated by the downlink control information or for each group determined based on an uplink control channel resource designated by the downlink control information.

Abstract: The present invention is designed so that the transmission of A/Ns can be controlled properly when the reference value for the timing for transmitting signals is controlled in radio base stations and/or user terminals. A user terminal, according to the present invention, has a receiving section that receives a downlink (DL) shared channel, and a control section that controls transmission of retransmission control information in response to the DL shared channel. The control section controls the transmission of the retransmission control information based on a reference value that is configured for timing for transmitting the retransmission control information.

Abstract: A user terminal according to an aspect of the present disclosure includes a receiving section that receives, in monitoring occasions with a certain period, downlink control information indicating a slot format for a certain cell, and a control section that determines the slot format for a slot or a symbol before a next monitoring occasion in a case where the certain cell is activated. This allows communication in TDD to be appropriately controlled.

Abstract: According to one aspect of the present disclosure, a base station includes a transmitting section that transmits an uplink control channel (PUCCH: Physical Uplink Control Channel) repetition and configuration information for configuring a dynamic hybrid automatic repeat reQuest acknowledgement (HARQ-ACK) codebook to a user terminal, and a control section that controls scheduling of at least one of downlink control information and a downlink shared channel for the user terminal so that the user terminal uses one PUCCH format or a codebook that does not exceed a given codebook size in a given period to perform the PUCCH repetition. According to one aspect of the present disclosure, it is possible to appropriately transmit the UCI even when the PUCCH repetition is used.

Abstract: A user terminal according to one aspect of the present disclosure includes: a transmitting/receiving section that performs transmission and reception by using a first Component Carrier (CC) that uses a first Sub-Carrier Spacing (SCS), and a second CC that uses a second SCS larger than the first SCS; and a control section that, when a semi-static Hybrid Automatic Repeat reQuest Acknowledgement (HARQ-ACK) codebook related to both of the first CC and the second CC is transmitted on an uplink shared channel of the second CC, deletes an HARQ-ACK bit corresponding to a downlink shared channel candidate that does not satisfy a requirement of processing time. According to one aspect of the present disclosure, it is possible to appropriately transmit HARQ-ACK even when a semi-static HARQ-ACK codebook is configured.

Abstract: A user terminal according to one aspect of the present disclosure includes: a receiving section that receives downlink control information using a certain downlink control information format; and a control section that determines activation or deactivation of a secondary cell, based on the downlink control information. According to one aspect of the present disclosure, it is possible to control activation at higher speed.

Abstract: A base station according to an aspect of the present disclosure includes a transmitting section that transmits, in monitoring occasions with a certain period, downlink control information indicating a slot format for a certain cell, and a control section that controls transmission of the downlink control information in at least one of a plurality of cells including the certain cell. This allows communication in TDD to be appropriately controlled.