Abstract: A system for suppressing an interference occurring between a plurality of base stations in a mobile communication system is provided. In the present system, each of the plurality of the base stations comprises an antenna section, a transmitter, a first receiver that processes a reception signal received by the antenna section, one or two or more second receivers that process reception signals received by the antenna sections of one or two or more surrounding base stations and transferred via a signal transportation means, and an estimation section that estimates information of propagation channels h between an own cell terminal and the plurality of the base stations, based on a reception result of a base-station specific signal (for example, a pilot signal) received by the first receiver from an own cell terminal and a reception result of the base-station specific signal received by the second receiver from the own cell terminal.

Abstract: This invention enables flexible connection with a wide variety of core networks even without changing, for example, equipment and/or operating systems related to existing base stations. This invention serves as at least one of (i) an interface via which a base station and a first core network are connected with each other and (ii) an interface via which a terminal device connected with the first core network via the base station and the first core network are connected with each other, and includes: a first stateful communication section (51) carrying out communication with the base station according to a stateful protocol; and a stateless communication section (52) carrying out communication with the first core network according to a stateless protocol.

Abstract: An information processing program causes a computer to obtain a plurality of captured images of fish in a plurality of directions within a corf from a plurality of imaging devices. Based on the distance from the imaging devices to each of the captured images of each of the fish, a plurality of sets of first fish positional information in a given area from a given position in the corf is aggregated into a second fish positional information representing a position of one fish, and estimating information on the fish based on the second fish positional information.

Abstract: Provided is a processing unit including a parallel processing determination unit configured to determine whether parallel processing is to be performed on at least some of processing target data, a VM execution control unit configured to cause each of a plurality of cores included in a parallel processing execution unit to execute a VM when the parallel processing determination unit determines that the parallel processing is to be performed, a storage control unit configured to divide at least some of the processing target data into partial data that can be processed in parallel and to cause a memory of the parallel processing execution unit to store the partial data, and a processing result obtaining unit configured to obtain a plurality of processing results of the partial data processed by VMs of the plurality of cores from the parallel processing execution unit.

Abstract: Provided is a power supply system that can increase a power supplied by a whole of the system that supplies a power to a target apparatus. The power supply system comprises a plurality of DC power sources including an environmental-power-generation apparatus and a power-reception apparatus for wireless power transfer, and a switching circuit. The switching circuit has a plurality of input sections to which the plurality of the DC power sources are connected, and a plurality of output sections that output DC powers to a plurality of power-supply targets, and switches connection states between the plurality of the input sections and the plurality of the output sections. One or plural power-reception apparatuses for wireless power transfer and one or plural environmental-power-generation apparatuses may be included. The plurality of the DC power sources may include one or plural photovoltaic-power-generation apparatuses.

Abstract: Provided is a system capable of reducing a residual interference when forming a null of a directional beam from an upper-airspace relay communication station that forms a wide-area cell, toward an antenna of a terrestrial-cell base station. The wide-area cell base station and the terrestrial-cell base station perform service-link communications in the same frequency band using radio frames that are time-synchronized with each other. The wide-area cell base station determines a null scheduling regarding a null allocation on time axis and frequency axis based on information regarding the terrestrial-cell base station, and transmits information on the null scheduling to the terrestrial-cell base station.

Abstract: In a configuration of plural HetNets disposed in a cellular manner, in which each HetNet is configured with one or plural small-sized second cells are disposed in a first cell, are, a system capable of suppressing an interference in an uplink in the HetNet and between HetNets is provided. The system is provided with a plurality of first-stage interference suppression apparatuses for suppressing an uplink interference signal from a terminal located in the second cell to an uplink reception signal of a first base station of the first cell of the HetNet, in each of the plural HetNets, and a second-stage interference suppression apparatus for suppressing an uplink interference signal to an uplink reception signal of a first base station in a first cell of one HetNet after performing the suppression of the interference signal by the first-stage interference suppression apparatus, from a terminal located in a first cell of other HetNet, with respect to each of the plural HetNets.

Abstract: Provided is a system capable of reducing a residual interference when forming a null of a directional beam from a relay communication station in an upper airspace which forms a wide-area cell toward an antenna of a terrestrial cell base station. The wide-area cell base station and one or plural terrestrial cell base stations perform service link communications in the same frequency band using radio frames that are time-synchronized with each other. The wide-area cell base station determines a null-forming method according to the conditions of uplink (UL) and downlink (DL) of the service link communications that are performed synchronously in the radio frames of the wide-area cell and the terrestrial cell, and controls a beamforming by the service link antenna of the relay communication station so as to form a null toward within a coverage area of the terrestrial cell base station based on the null-forming method.

Abstract: Provided is a system comprising: a management unit that manages a plurality of battery packs, which are connected in parallel to a bus to which a power generation unit and a load are connected, to have the plurality of battery packs being alternately discharged so that a voltage difference between a battery pack with a highest voltage and a battery pack with a lowest voltage among the plurality of battery packs is not greater than a voltage threshold.

Abstract: In an overlay cell configuration in which a second cell, a second cell of a same frequency and a third cell of a different frequency are overlapped at least partially with each other, a concentration of communication traffic on the first cell is prevented.

Abstract: An antenna apparatus is provided. The antenna apparatus includes an antenna array including a first plurality of antennas arranged by being shifted in a lateral direction by a distance of an odd integer multiple of a half period of a period of a level fluctuation depending on an antenna lateral position at a first distance that is predetermined as a distance between the antenna apparatus and an antenna apparatus of a communication partner. An antenna apparatus is provided. The antenna apparatus includes an antenna array including a first plurality of antennas arranged by being shifted in a height direction by a distance of an odd integer multiple of a half period of a period of a level fluctuation depending on an antenna height at a first distance that is predetermined as a distance between the antenna apparatus and an antenna apparatus of a communication partner.

Abstract: It is to mitigate a deterioration of an interference reduction performance between multi-feeder links due to a weight-calculation processing delay, when a combination of plural antennas for feeder link (FL antenna) incorporated in an aerial-staying type communication relay apparatus and plural gateway (GW) stations changes.

Abstract: It is provided of a communication relay apparatus of aerial-floating type (HAPS) capable of appropriately performing a division into subareas used for an area optimization in dynamic area control that can respond to a change in distribution of terminal apparatuses in a service area configured with plural cells formed toward the ground, depending on a status of the service area. The communication relay apparatus of aerial-floating type (HAPS) estimates positions of plural terminal apparatuses positioned in a service area, divides the service area into plural subareas including plural cells, optimizes plural kinds of antenna parameters of an antenna for service link for each of the subareas, based on an estimation result of positions of plural terminal apparatuses, and applies, to the antenna for service link, optimal values of the plural kinds of antenna parameters after completing the optimization of each subarea for all of the plural subareas.

Abstract: Provided is a control device which controls a flight vehicle which forms a multi-cell including a plurality of cells on a ground to provide a wireless communication service to user terminals in the multi-cell, the control device including an output control unit which performs control such that in response to a state where a second flight vehicle which is to replace a first flight vehicle controlled by the control device has started forming a plurality of cells to be aligned with a position of each of the plurality of cells formed by the first flight vehicle, each of the plurality of cells formed by the second flight vehicle being in a same frequency band as that of each of the plurality of cells formed by the first flight vehicle, radio wave output of the plurality of cells of the first flight vehicle continuously falls.

Abstract: Provided is a switching circuit capable of suppressing a decrease in output power even if the power generated by a plurality of DC-power supply circuits changes, and a DC-power output apparatus, a wireless-power transfer system and a solar-power generation system having the switching circuit. A connection circuit section of the switching circuit, which is disposed between a plurality of plus-input sections and a plurality of minus-input sections, and a plus-output section and a minus-output section, has a plurality of switches capable of respectively controlling a turn on/off so as to switch connection states between the plurality of the DC-power supply circuits, and the plus-output section and the minus-output section.

Abstract: In a HetNet configuration in which plural small-sized second cells are disposed in a first cell, an amount of signal processing for suppressing interference from other cells with respect to a reception signal on an uplink line of a base station of any one of the cells is reduced.

Abstract: An imaging system equipped with a subject device includes a plate group constituted of multiple plates arranged at a position opposing a light source for imaging; and a supporting member that supports the plate group. The plate group is constituted of plates arranged in a planar manner, and includes at least one of a rotating plate that is a plate rotatable around one side as a rotation axis, and the supporting member axially supports one side corresponding to the rotation axis of the rotating plate.

Abstract: Provided is a method capable of accurately estimating a position of a target apparatus for wireless power transfer, etc. Near-field radio waves are received from a relay apparatus positioned in an area between the base station and a target apparatus by plural antenna elements of an antenna apparatus of a base station, for each of the plural antenna elements, an angle of a direction of the relay apparatus with respect to a position of the antenna element is calculated based on a reception result of radio waves from the relay apparatus, and a position of the relay apparatus is estimated based on a calculation result of the angle of each of the plural antenna elements and position information on the antenna element in the antenna apparatus.

Abstract: A system for suppressing an interference occurring between a plurality of base stations in a mobile communication system is provided. In the present system, each of the plurality of the base stations comprises an antenna section, a transmitter, a first receiver that processes a reception signal received by the antenna section, one or two or more second receivers that process reception signals received by the antenna sections of one or two or more surrounding base stations and transferred via a signal transportation means, and an estimation section that estimates information of propagation channels h between an own cell terminal and the plurality of the base stations, based on a reception result of a base-station specific signal (for example, a pilot signal) received by the first receiver from an own cell terminal and a reception result of the base-station specific signal received by the second receiver from the own cell terminal.

Abstract: Provided is a switching circuit capable of suppressing a decrease in output power even if the power generated by a plurality of DC-power supply circuits changes, and a DC-power output apparatus, a wireless-power transfer system and a solar-power generation system having the switching circuit. A connection circuit section of the switching circuit, which is disposed between a plurality of plus-input sections and a plurality of minus-input sections, and a plus-output section and a minus-output section, has a plurality of switches capable of respectively controlling a turn on/off so as to switch connection states between the plurality of the DC-power supply circuits, and the plus-output section and the minus-output section.