Abstract: There is provided a work machine which can improve accuracy of control of an actuator when a pressure difference between a hydraulic pump and the actuator is large and the demanded flow rate of the actuator is small. An auxiliary flow rate controller is configured such that an opening area of a main valve changes between a maximum opening area and zero according to the opening area of a pilot variable restrictor when the opening area of the pilot variable restrictor is equal to or more than a predetermined opening area and that the opening area of the main valve is zero irrespective of the opening area of the pilot variable restrictor when the opening area of the pilot variable restrictor is less than the predetermined opening area.

Abstract: A wireless relay device includes: a communication unit configured to relay a downlink wireless signal or an uplink wireless signal; a reception unit configured to receive information related to a control of relaying of the downlink wireless signal or the uplink wireless signal; and a control unit configured to perform the control of relaying the downlink wireless signal or the uplink wireless signal based on the control information during a period from reception of the received control information or from a start of application of the received control information until after a specified period.

Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives configuration information including one or more of time resource configurations and/or frequency resource configurations; and a control section that determines, based on the configuration information and an ID related to a Public Land Mobile Network (PLMN), at least one of a time resource and a frequency resource to be used for at least one of a downlink signal and an uplink signal. An aspect of the present disclosure allows operation of communication to be flexibly performed between operators.

Abstract: A terminal includes: a communication unit configured to perform communication with a base station that can perform transmission and reception using a same time and frequency resource based on configuration of an uplink resource and a downlink resource; and a control unit configured to control an operation of the communication unit based on a gap between a timing of uplink transmission performed in the uplink resource and a timing of downlink reception performed in the downlink resource.

Abstract: A terminal according to one aspect of the present disclosure includes a receiving section that receives at least one of configuration information of a pattern of resources unavailable for a DL in certain time resources and indication information related to the pattern of the resources, and a control section that performs control to perform DL reception in resources other than the resources unavailable for the DL, and performs control not to perform the DL reception in the resources unavailable for the DL, based on at least one of the configuration information and the indication information. According to one aspect of the present disclosure, use efficiency of resources can be enhanced.

Abstract: A wireless relay device includes: a communication unit configured to relay a downlink wireless signal or an uplink wireless signal; a transmission unit configured to transmit information indicating a capability related to a relay of the downlink wireless signal or the uplink wireless signal; a reception unit configured to receive information indicating an amplification value or transmission power after the relay in accordance with the capability related to the relay; and a control unit configured to perform a control of amplifying the downlink wireless signal or the uplink wireless signal to be relayed, based on the information indicating the amplification value or the transmission power after the relay.

Abstract: A wireless relay device includes: a communication unit configured to relay a downlink wireless signal and an uplink wireless signal: a reception unit configured to receive a signal including control information and identification information for identifying a transmission destination of a signal including the control information in downlink; and a control unit configured to decode the signal including the control information, based on the identification information and perform a control based on the control information.

Abstract: A base station includes: a transmission unit configured to transmit signals that are associated with indexes and that include a synchronization signal and broadcast information to a plurality of wireless relay devices; and a control unit configured to control an operation related to transmission of the signals that are associated with the indexes. The control unit configures the signals that are associated with the indexes based on a number of the plurality of wireless relay devices.

Abstract: A wireless relay device includes: a reception unit configured to receive information indicating an activation or deactivation of a communication using relaying by a plurality of wireless relay devices from a base station, another wireless relay device, or a terminal; and a control unit configured to activate or deactivate a relaying function of the wireless relay device itself, based on the information indicating the activation or deactivation. The information indicating the activation or deactivation includes a number of hops in the communication.

Abstract: A wireless relay device includes: a communication unit configured to relay a downlink wireless signal or an uplink wireless signal; a reception unit configured to receive control information indicating a beam to be applied for each of resources via a downlink; and a control unit configured to determine a beam to be applied to the downlink wireless signal or the uplink wireless signal to be relayed, based on the control information.

Abstract: A communication device includes: a communication unit configured to transmit or receive a downlink signal or an uplink signal; and a control unit configured to determine a default beam in a wireless communication. In a case where a beam to be applied to the downlink signal or the uplink signal is changed from the default beam, the control unit changes the beam to be applied to the downlink signal or the uplink signal back to the determined default beam.

Abstract: A terminal includes: a reception unit configured to receive a first signal to which a beam from a first wireless relay device is applied and a second signal to which a beam from a second wireless relay device is applied, the beam from the second wireless relay device being different from that for the first signal; and a control unit configured to determine whether or not to simultaneously receive the first signal and the second signal based on a condition.

Abstract: A wireless relay device includes: a reception unit configured to receive resources of a periodic signal and information related to a beam for each of the resources from a base station or a first wireless relay device; and a transmission unit configured to transmit the periodic signal to which a beam based on the information is applied to a second wireless relay device or a terminal. The transmission unit does not transmit the information related to a beam for each of the resources to the second wireless relay device that is not directly connected to the terminal.

Abstract: A wireless relay device includes: a reception unit configured to receive a signal that is associated with an index and that includes a synchronization signal and broadcast information from a base station or a first wireless relay device; and a transmission unit configured to transmit the signal that is associated with the index to a second wireless relay device or a terminal. The reception unit receives first information for transmitting the signal that is associated with the index from the base station or the first wireless relay device, and the transmission unit transmits the signal that is associated with the index and the first information to the second wireless relay device or the terminal based on the first information.

Abstract: A terminal receives a master information block and a synchronization signal block from a radio base station, and acquires an offset between the synchronization signal block and a control resource set by using a parameter for quasi co-location derivation included in the master information block. The terminal assumes quasi co-location associated with the synchronization signal block based on the acquired offset.

Abstract: A terminal according to an aspect of the present disclosure includes: a receiving section that receives configuration information of a serving cell associated with a Public Land Mobile Network (PLMN) ID, the configuration information being included in a first system information block (SIB); and a control section that determines, based on the configuration information, at least one of a frequency resource and a time resource associated with the PLMN ID. An aspect of the present disclosure allows operation of communication to be flexibly performed between operators.

Abstract: A terminal includes: a communication unit configured to perform a bidirectional communication including downlink and uplink with a base station by using a frequency division duplex; and a control unit configured to control a communication to be performed by using a time division duplex in a case where there are a terminal that supports the frequency division duplex and a terminal that does not support the frequency division duplex in a same communication area.

Abstract: A terminal includes: a transmission unit configured to transmit a plurality of types of uplink information to a base station; and a control unit configured to control the uplink information to be transmitted via an uplink shared channel that is periodically scheduled as a resource that can be used for any one of the plurality of types of uplink information.

Abstract: A terminal includes: a reception unit configured to receive information indicating a communication direction for each time resource and frequency resource from a base station; and a control unit configured to control a communication to be performed in the communication direction indicated by the information in a case where the information indicating the communication direction is received.

Abstract: A terminal includes a control unit configured to perform LBT (Listen before talk) in a frequency band above a predetermined frequency, and a transmission unit configured to transmit a signal based on a result of the LBT, wherein the control unit performs the LBT with a mechanism different from LBT performed in a frequency band below the predetermined frequency.