Abstract: To perform communication using a plurality of cells using different transmission time intervals (TTIs) in an appropriate manner, a user terminal includes a control section for controlling the communication using the plurality of cells including at least a first cell and a second cell using a shorter TTI than a TTI of the first cell, and a reception section for receiving information broadcasted from each of the first and second cells. The user terminal receives system information and/or paging information as the information broadcasted from each cell.

Abstract: The present invention is designed so that frequency bands can be used efficiently depending on what capabilities UEs have. According to one aspect of the present invention, a user terminal includes a receiving section that receives a synchronization signal block transmitted in part of frequency bands in a specific frequency band and a control section that, after random access procedures based on the synchronization signal block, controls transmission and/or receipt in a plurality of frequency bands in the specific frequency band based on a plurality of specific signals transmitted respectively in the plurality of frequency bands.

Abstract: Provided are a user terminal, a feedback method at the user terminal, a base station and a method at the base station. The feedback method at the user terminal includes steps of: calculating first information related to receiving signal quality; combining the first information and a response signal to a hybrid automatic repeat request (HARQ) to be transmitted to a base station to generate a combined signal; carrying out signal processing on the combined signal to generate second information; and transmitting the second information to the base station.

Abstract: A terminal is disclosed that includes a processor that, if the terminal receives downlink control information for scheduling the UL transmission in a secondary CC to which sensing of channel is applied, determines one of a Power Headroom (PH) based on actual transmission or a PH not based on actual transmission irrespective of a result of the sensing. In addition, the terminal includes a transmitter that reports the determined PH.

Abstract: Provided are a beam configuration method, a mobile station and a base station. The beam configuration method performed by a base station according to embodiments of the present invention includes: determining a beam transmission scheme for a mobile station according to performance of the mobile station; and transmitting information to the mobile station according to the beam transmission scheme.

Abstract: To properly perform communication also in the case of using numerology different from that of the existing LTE system, a user terminal has a receiving section that receives a downlink control channel, and a control section that controls detection of a plurality of downlink control channel candidates, where a reference signal used in reception of the downlink control channel and/or an allocation resource block (RB) of downlink control channel candidates is configured to be common between at least two downlink control channel candidates among the plurality of downlink control channel candidates.

Abstract: Transmission power is appropriately controlled for various techniques to be introduced for radio communication. A user terminal includes: a transmission section that transmits an uplink signal; and a control section that controls transmission power of the uplink signal based on at least one of received power of a user terminal specific reference signal to which downlink beam forming has been applied and/or received power of a reference signal associated with the downlink beam forming, and a Transmission Power Control (TPC) command included in downlink control information.

Abstract: The present invention is designed so that frequency bands can be used efficiently depending on what capabilities user terminals have. According to one aspect of the present invention, a user terminal includes a receiving section that receives a plurality of synchronization signal blocks, transmitted in each of a plurality of frequency bands in a specific frequency band, and a control section that controls transmission and/or receipt to use the specific frequency band, based on at least one of the plurality of synchronization signal blocks.

Abstract: To properly perform communication also in the case of using numerology different from that of the existing LTE system, a user terminal, which changes a frequency bandwidth used in transmission and/or reception of a signal to control communication, has a receiving section that receives first downlink control information transmitted in a first frequency bandwidth, and second downlink control information and/or downlink data transmitted in a second frequency bandwidth having a bandwidth of the first frequency bandwidth or more, and a control section that controls reception of the downlink control information and/or the downlink data transmitted in the second frequency bandwidth, based on the first downlink control information.

Abstract: A beam determining method performed in an uplink random access procedure, a user equipment, and a base station are disclosed. The user equipment has a plurality of RX beams, the base station has a plurality of TX beams. A beam determining method performed by a user equipment includes: determining an available RX beam among the plurality of RX beams of the user equipment and an available TX beam among the plurality of TX beams of the base station according to downlink synchronization signals transmitted by the base station; notifying the base station of information indicating the available TX beam of the base station implicitly.

Abstract: In user terminal 20, reception section 204 receives one or more downlink signals mapped to a plurality of signal transmission points in a single carrier, and extraction section 214 extracts at least one of the one or more downlink signals that is assigned to at least one of the signal transmission points that belongs to a resource block group associated with user terminal 20, in which the resource block group is in units of a predetermined number of signal transmission points and the at least one of the one or more downlink signals is extracted based on a definition of the resource block group. This processing makes it possible to multiplex downlink signals for a plurality of terminals in a single-carrier transmission.

Abstract: An electrical connection device includes a first connector (C1) having a first housing (10), a second connector (C2) having a second housing (20) for receiving the insertion of the first housing (10), and a connection detecting tool (30). The first housing (10) includes a housing body (12), a lock (14) having a tool restraining portion (14d) and a displacement restricting portion (16) for blocking an insertion allowing displacement of the lock (14). The connection detecting tool (30) is held at an operating position to resiliently deform the displacement restricting portion (16) to allow the insertion allowing displacement. The tool restraining portion (14d) restrains the connection detecting tool (30) at the operating position so as not to be separable while allowing the separation of the connection detecting tool (30) from the operating position as the lock (14) resiliently returns to a lock position.

Abstract: A user terminal that communicates with a plurality of cell groups (CG), each group being formed with one or more cells to use different frequency bands, and a control section that selects at least one cell, from the cells where uplink control signals can be allocated, which are configured in each CG, and controls the cell to transmit the uplink control signals. When information to indicate cross-carrier scheduling (CCS) is included in a downlink control signal, the control section decides whether or not the cell having received the downlink control signal and the cell that is designated by the information to indicate CCS belong to the same CG, and selects the cell based on this decision. Thus, the decrease of overall system performance can be reduced even when CCS and uplink control signal transmission in secondary cells are employed at the same time.

Abstract: The present invention is designed so that adequate communication is allowed even when system information is changed. The present invention provides a receiving section that receives a DL signal, which includes information that orders a modification of system information, and a control section that controls the modification of the system information based on the DL signal, and, when information related to content of the modification of the system information is included in the information ordering the modification, the control section changes a part or all of the system information based on the information related to the content of the modification. Also, in the modification order information, information to indicate that the system information is not changed and information to indicate the content of the modification when the system information is changed are defined as different pieces of bit information in the same bit field.

Abstract: In order to realize appropriate communications in a next-generation communication system, the present invention provides a user terminal having: a reception section that receives a synchronization signal and broadcast signals; and a control section that uses the synchronization signal as a basis to specify a radio resource and/or a communication parameter of a radio access scheme used for transmission of at least one of the broadcast signals.

Abstract: The present invention is designed so that downlink and/or uplink control information are transmitted and received properly in communication in which beamforming is used. A user terminal has a receiving section that receives a control channel candidate in a control channel field where a plurality of control channel candidates are able to be mapped in one subframe, and a control section that exerts control to decode control information based on the control channel candidate received in the receiving section. In the control channel field, different beams are associated with different symbols, and the control channel candidate is mapped to at least one of the different symbols.

Abstract: The present invention is designed so that it is possible to communicate adequately depending on user terminal-specific capabilities, in a system where wide frequency bands are supported. A user terminal has a receiving section that receives band information, which indicates a prospective downlink (DL) band, which is a band where a DL signal might be allocated, and/or a prospective uplink (UL) band, which is a band where a UL signal might be allocated, and a control section that configures the DL band candidate and/or the UL band candidate in a user terminal-specific manner based on the band information.

Abstract: To enable communication to be performed with a communication scheme suitable for the future radio communication system where a plurality of user terminals is multiplexed in the power domain, a user terminal of the present invention is provided with a reception section that receives a downlink (DL) signal to the user terminal, and a decoding section that decodes the DL signal to the user terminal, where at least one of a cyclic prefix (CP) length, symbol length and transmission time interval (TTI) length is different between the DL signal to the user terminal and a DL signal to another user terminal multiplexed in the power domain.

Abstract: A user equipment (UE) is disclosed including a receiver that receives, from a base station (BS), Zero Power (ZP) Channel State Information-Reference Signal (CSI-RS) resource configuration information and a ZP CSI-RS. The ZP CSI-RS is transmitted as a periodic ZP CSI-RS, a semi-persistent ZP CSI-RS, or an aperiodic ZP CSI-RS. When the ZP-CSI-RS is transmitted as the periodic ZP CSI-RS or the semi-persistent ZP CSI-RS, the ZP CSI-RS resource configuration information designates periodicity and a timing offset for the periodic ZP CSI RS or the semi-persistent ZP-CSI-RS. The receiver receives the ZP CSI-RS based on a ZP CSI RS resource specified using the periodicity and the timing offset. When the ZP CSI-RS is transmitted as the aperiodic ZP CSI-RS, the receiver receives DCI that triggers the aperiodic ZP CSI-RS. The receiver receives the ZP CSI-RS based on a ZP CSI-RS resource specified using the DCI.

Abstract: The present invention is designed to allow communication based on appropriate numerologies even when multiple numerologies are used. According to one aspect of the present invention, a user terminal has a receiving section that monitors downlink control information by assuming a plurality of communication parameters that relate to a frequency domain and/or a time domain, and a control section that judges that at least part of parameters that relate to a search space for monitoring the downlink control information is different, for each of the communication parameters.