Abstract: A wireless station that belongs to a communication cell includes a receiver which, in operation, receives a trigger frame transmitted from an access point that belongs to an interference cell and a controller which, in operation, determines, based on at least one parameter included in the trigger frame and reception power value of the trigger frame received at the wireless station, whether the wireless station is allowed to transmit to other wireless station that belongs to the communication cell, wherein the at least one parameter includes a value set based on transmit power value of the trigger frame transmitted from the access point.

Abstract: Provided is a base station capable of appropriately applying precoding to a PDCCH. At the base station (100), a precoding control unit (105) sets a precoding granularity, which indicates a period in which the same precoding is used, to multiple control channels respectively disposed in different time resources. A transmission unit (108) transmits signals of the multiple control channels to a terminal (200) on the basis of the set precoding granularity.

Abstract: The present invention contributes to the provision of a terminal and a transmission method which can improve the efficiency of the repetitive transmission of an uplink signal. The terminal is provided with: a transmission circuit which performs repetitive transmissions of an uplink signal in a plurality of time periods; and a control circuit which controls a time period in which a transmission opportunity of uplink control information is set among the plurality of time periods.

Abstract: A wireless station that belongs to a communication cell includes a receiver which, in operation, receives a trigger frame transmitted from an access point that belongs to an interference cell and a controller which, in operation, determines, based on at least one parameter included in the trigger frame and reception power value of the trigger frame received at the wireless station, whether the wireless station is allowed to transmit to other wireless station that belongs to the communication cell, wherein the at least one parameter includes a value set based on transmit power value of the trigger frame transmitted from the access point.

Abstract: Provided is a terminal capable of improving utilization efficiency of an uplink resource in an unlicensed band. In a terminal (200), a transmission control unit (206) sets, in accordance with at least one of a data size and retransmission of uplink data, a first end position of a time resource which is set for the uplink data to a second end position. A transmission unit (210) transmits the uplink data on the basis of the second end position.

Abstract: A base station that suitably controls retransmission in license-free bands. In the base station (100), a transmission unit (107) sends control information pertaining to retransmission requests for response signals for downlink data and a reception unit (108) receives response signals that have been retransmitted on the basis of the control information. The control information identifies one among a plurality of candidate values pertaining to the number of response signals requested for retransmission. The plurality of candidate values are set on the basis of any one of a plurality of grain sizes.

Abstract: In a terminal (200), a HARQ-ACK generator (208) generates one or more response signals for respective code block groups based on a parameter included in each of a plurality of downlink control signals, the code block groups forming each of a plurality of transport blocks to be assigned by the plurality of downlink control signals, the parameter relating to the number of code block groups. A transmitter (211) collectively transmits the response signals for the respective code block groups. A value of the parameter herein is to be configured, at least using a first granularity coarser than a second granularity in units of the code block groups.

Abstract: A base station that can appropriately perform feedback with regard to data transmission. A base station (100), wherein on the basis of a resource allocation configuration that was configured by a terminal (200), a DFI generation unit (106) determines a transmission method for feedback information that includes a response signal regarding uplink data. A transmission unit (110) transmits the feedback information on the basis of the transmission method.

Abstract: Provided is a base station capable of enhancing signal reception performance. In the base station (100), a control unit (101) generates data signals in unit of fixed length. A transmission unit (107) performs repetitive transmission of a transmission signal including at least one of the data signals in unit of fixed length in a resource that can be set to a plurality of data lengths.

Abstract: Provided is a terminal which can suitably transmit an uplink signal. In a terminal (100), a PC parameter control unit (104) sets a first power control parameter corresponding to a first service, when a prescribed condition relating to a control channel used for transmission of uplink signal allocation is met, and sets a second power control parameter corresponding to a second service, when the prescribed condition is not met. A transmission unit (109) transmits the uplink signal by using transmission power calculated by using the first power control parameter or the second power control parameter.

Abstract: Provided is a base station capable of appropriately applying precoding to a PDCCH. At the base station (100), a precoding control unit (105) sets a precoding granularity, which indicates a period in which the same precoding is used, to multiple control channels respectively disposed in different time resources. A transmission unit (108) transmits signals of the multiple control channels to a terminal (200) on the basis of the set precoding granularity.

Abstract: Provided is a terminal which can suitably apply precoding to a PDCCH. In the terminal (100), when a first CC is notified of scheduling information for each of a first component carrier (CC) and a second CC, a restriction determination unit (105) determines, on the basis of a subcarrier interval of the CC to be scheduled by means of the scheduling information among the first CC and the second CC, the maximum number of blind decodings when the scheduling information is blind-decoded. An extraction unit (102) performs the blind decoding on the basis of the maximum number of blind decodings and extracts the scheduling information.

Abstract: According to the present invention, a base station can dynamically change a repetition transmission method as appropriate. In a base station (100), a repetition control unit (103) determines a data repetition pattern for a terminal (200). A transmission unit (109) repeatedly transmits data (repetition transmission) on the basis of the repetition pattern. The data repetition pattern corresponds to control information to be reported to the terminal (200) by dynamic signaling.

Abstract: Provided are a user equipment, base station and wireless communication methods related to multiplexing of UCI in PUSCH in NR. A user equipment comprises: circuitry operative to process UCI bits to be transmitted according to the comparison of the number M of UCI bits generated based on DL assignment (s) before an UL grant from a base station and the number N of UCI bits generated based on DL assignment (s) after the UL grant with the number P of UCI bits indicated in the UL grant and/or the maximum number Q of bits determined based on at least a configured coding rate, wherein each of M, N, P, Q is an integer equal to or larger than 0; and a transmitter operative to transmit the processed UCI bits in PUSCH at a TTI indicated in the UL grant to the base station.

Abstract: In a terminal (200), a HARQ-ACK generator (208) generates one or more response signals for respective code block groups based on a parameter included in each of a plurality of downlink control signals, the code block groups forming each of a plurality of transport blocks to be assigned by the plurality of downlink control signals, the parameter relating to the number of code block groups. A transmitter (211) collectively transmits the response signals for the respective code block groups. A value of the parameter herein is to be configured, at least using a first granularity coarser than a second granularity in units of the code block groups.

Abstract: In a terminal, based on a first parameter included in each of a plurality of downlink control signals, the first parameter indicating a cumulative count of code block groups (CBGs) configuring each of a plurality of transport blocks (TBs) assigned by the plurality of downlink control signals, a HARQ-ACK generation unit generates a response signal (HARQ-ACK) for each of the code block groups. A transmission unit collectively transmits the response signals for each of the code block groups.

Abstract: A wireless station that belongs to a communication cell includes a receiver which, in operation, receives a trigger frame transmitted from an access point that belongs to an interference cell and a controller which, in operation, determines, based on at least one parameter included in the trigger frame and reception power value of the trigger frame received at the wireless station, whether the wireless station is allowed to transmit to other wireless station that belongs to the communication cell, wherein the at least one parameter includes a value set based on transmit power value of the trigger frame transmitted from the access point.