Abstract: A communication system including a control server apparatus and a movable base station device, wherein the control server apparatus is configured to select, as a movement destination position of the movable base station device, a position at which a movement distance from a current position of the movable base station device is minimum, among positions at which a base station position evaluation index is equal to or larger than a threshold, or a position at which the base station position evaluation index is maximum, among positions at which the movement distance from the current position of the movable base station device is equal to or smaller than a threshold, and wherein the control server apparatus is configured to perform control to move the movable base station device to the movement destination position.

Abstract: Provided is a radio communication method to be performed by a radio communication system using a TDD scheme, the radio communication method including: an acquisition step of acquiring a TDD configuration of another radio communication system that might have an overlapping communication area; a determination step of determining priorities of slots of the radio communication system, based on the acquired TDD configuration, such that a priority of a first slot, in which an uplink slot timing and a downlink slot timing overlap those of the another radio communication system, is lower than a priority of a second slot, in which the uplink slot timing and the downlink slot timing do not overlap those of the another radio communication system; and an allocation step of allocating resources to the slots of the radio communication system according to the priorities of the slots.

Abstract: Provided is a control apparatus in a wireless communication system including the control apparatus and a plurality of base stations, the control apparatus including: an information acquisition unit that acquires position information of one or more specific priority terminals and shield sensing information; a shield map generation unit that generates a shield map based on the shield sensing information; a line-of-sight determination unit that determines whether or not there is a line of sight from an antenna of each base station to each specific priority terminal based on the position information and the shield map; and a base station control unit that controls movable base stations in the plurality of base stations such that the number of specific priority terminals in a line-of-sight state from the plurality of base stations becomes a maximum.

Abstract: A control apparatus for controlling movable wireless stations, the control apparatus includes a first calculation unit configured to calculate combination candidates of movement routes of a plurality of movable wireless stations where a distance between the movement routes of the plurality of movable wireless stations is equal to or more than a first distance or a maximum distance, a second calculation unit configured to calculate combination candidates of movement timing and movement speed where the distance between the plurality of movable wireless stations becomes equal to or more than a second distance or a maximum distance from the combination candidates of the movement routes of the plurality of movable wireless stations, and a movement instruction unit configured to instruct the plurality of movable wireless stations to move by using a combination where a movement time or a movement distance of the plurality of movable wireless stations is the minimum or a combination where a movement time or a movemen

Abstract: Provided is a wireless communication system including: one or more mobile wireless station devices that communicate with one or more terminal devices; and a control device, in which the control device calculates, on the basis of a position of each of the terminal devices, a plurality of movement destination position candidates of each of the mobile wireless station devices of which communication with the terminal device satisfies a required quality, and from among a plurality of the movement destination position candidates, selects, as a movement destination position for movement control, a movement destination position candidate having a minimum sum of movement costs for movement from a current position to a movement destination for the mobile wireless station device or a movement destination position candidate for which a maximum value of a movement cost for movement from the current position to the movement destination becomes minimum for one or more mobile wireless station devices.

Abstract: In a base station control system, a base station control apparatus includes circuitry configured to select one combination pattern from combination patterns regarding possible combinations of one or more first base stations that are each to couple to one or more terminals among terminals coupled to at least one second base station, based on the number of first terminals and the number of second terminals. The combination patterns include candidate positions of each first base station, and include transmitted power candidates of the first base station that are at the candidate positions.

Abstract: A control apparatus used in a wireless communication system including a plurality of base stations includes: a data storage unit that stores a wireless parameter for each failure pattern; and a parameter control unit that reads a wireless parameter corresponding to a failure pattern of a failure from the data storage unit in a case where it is determined that the failure of the failure pattern has occurred on the basis of operation state information of each base station, and notifies at least one base station of the read wireless parameter.

Abstract: A radio zone design apparatus includes a processor for executing a process including arranging terminal positions and candidate positions for an installation position of a base station or a relay station in the wireless area including a shielding object; calculating reception power between each of the terminal positions and a corresponding one of the candidate positions, and reception power between each of the candidate positions and a corresponding one of other candidate positions; selecting, for each of different numbers of base stations, a candidate position of the base station for a corresponding number of base stations; selecting a candidate position of the relay station capable of accommodating, in combination with the candidate position of the base station, the terminal position that is not able to be accommodated; and determining installation positions of the base station and the relay station in which a cost of the wireless area is minimized.

Abstract: A base station control system includes a first base station of which a disposition position is not determined, and a base station control device including a memory and a processor configured to: divide an existing second base station and terminals connected to the second base station into clusters through clustering; determine a position corresponding to a cluster not including the second base station among the plurality of clusters as a disposition position of the first base station; calculate the number of first terminals connected to the first base station and the number of second terminals connected to the second base station for each of a plurality of transmission powers of the first base station in a case where the first base station is disposed at the position; and select a transmission power of the first base station based on the number of first terminals and the number of second terminals.

Abstract: A base station deployment position selection method executed by a computer includes calculating, in an area where a first base station to which a plurality of terminals are connected is deployed, for each of a plurality of candidates for a deployment position of a second base station, in a case where the second base station is deployed at the deployment position being a candidate, a number of first terminals connected to the first base station and a number of second terminals connected to the second base station; and selecting one candidate from the plurality of candidates based on the number of first terminals and the number of second terminals.

Abstract: A control apparatus for controlling a position and a direction of a base station, and a position of a specific terminal that wirelessly communicates with the base station in conjunction with each other, the control apparatus including: a shield detection information acquisition unit which acquires information obtained by detecting the shield; a specific terminal position candidate calculating unit which calculates a position candidate of the specific terminal on the basis of information obtained by detecting the shield; a line-of-sight determination unit which determines whether there is line-of-sight of the specific terminal from the base station for each of the position candidates of the specific terminal; and a base station movement control parameter calculating unit which determines a position of the specific terminal on the basis of a result of determination of the presence or absence of the line-of-sight and calculates a parameter indicating a position and a direction of the base station.

Abstract: A radio area design support apparatus includes a reception power calculation unit that calculates, for each of a plurality of layouts having different numbers of base stations from each other with respect to arrangement of base stations regarding wireless communication, reception power of a case where a base station is arranged according to the layout at one or more points, a wireless parameter calculation unit that calculates, for each of the layouts, a wireless parameter to be set for the base station related to the layout based on a predetermined condition, a throughput calculation unit that calculates, for each of the layouts, an estimation value of throughput at the one or more points based on the reception power and the wireless parameter, and an evaluation unit that evaluates superiority or inferiority of the plurality of layouts based on at least one of the number of base stations or the estimation value, thereby enabling radio area design in consideration of communication quality or cost.

Abstract: A radio zone design support apparatus includes: a first correction unit configured to correct a target value of quality information of wireless communication at one or more points on the basis of first quality information regarding wireless communication in an existing wireless system at the one or more points; and a calculation unit configured to calculate base station arrangement information regarding a new wireless system on the basis of the corrected target value, thereby supporting reduction of an increase in wireless network establishment cost.

Abstract: A wireless communication system is a wireless communication system including a base station that transmits and receives a signal to and from a terminal, and a relay station that relays a signal between the base station and the terminal, in which the base station includes a scheduling function unit that determines a schedule of transmission and reception of signals to and from a plurality of terminals 20, and transmits schedule information indicating the determined schedule to the relay station, and the relay station includes a schedule information acquisition unit that acquires the schedule information from the base station, and a beam control unit that specifies a terminal being a transmission destination based on the schedule information, and controls a beam used for relay for each terminal specified as a transmission destination based on a beam number specified for each terminal in advance.

Abstract: A communication system includes a terminal configured to wirelessly communicate with a base station and a control device. The terminal includes a transmission unit that transmits location information of the terminal. The control device includes a processor; and a memory that includes instructions, which when executed, cause the processor to execute the following steps: setting an area around a dead zone as a preliminary dead area, acquiring location information of the terminal, and determining whether the terminal is in the preliminary dead area by comparing the location information of the terminal with the preliminary dead area and performing control for switching a connection destination of the terminal when the determining determines that the terminal is in the preliminary dead area.

Abstract: To properly consider the QCL assumption about SSBs in an NR-U carrier, a user terminal according to one aspect of the present disclosure is characterized by having a receiving section that receives a Synchronization Signal Block (SSB), and a control section which acquires an effective SSB index based on a demodulation reference signal (DeModulation Reference Signal (DMRS)) of a broadcast channel (Physical Broadcast Channel (PBCH)) included in the SSB, and from a payload of the PBCH, acquires at least one of information on the number of effective SSB indexes to be transmitted and a start location index of an SSB burst including the SSB within a Discovery Reference Signal (DRS) transmission window.

Abstract: In order to suppress degradation of communication quality due to radio interference or the like, or occurrence of extra operating power consumption or the like of a wireless base station when the number of the wireless terminals in the wireless area is smaller than expected, a radio communication system includes a plurality of wireless base stations installed in a wireless area, and includes: a calculation unit configured to calculate an operating state pattern of the plurality of wireless base stations according to a state of a wireless terminal in the wireless area; an acquisition unit configured to acquire a state of the wireless terminal in the wireless area; and a control unit configured to control, on the basis of the operating state pattern, an operating state of the plurality of wireless base stations according to the state of the wireless terminal acquired by the acquisition unit.

Abstract: Provided is a control apparatus in a wireless communication system including the control apparatus and a movable base station, the control apparatus including: an information acquisition unit that acquires shield sensing information; a shield map generation unit that generates a shield map on the basis of the shield sensing information; a communication quality calculation unit that calculates an estimated received power in each coverage area element or each terminal for each position and direction of an antenna of the movable base station on the basis of the shield map, calculates an estimated communication quality in each coverage area element or each terminal on the basis of the estimated received power, and calculates an index value for controlling the movable base station on the basis of the estimated communication quality; and a base station control unit that controls the position and direction of the antenna of the movable base station so that the index value is maximized.

Abstract: A wireless communication system including a relay station apparatus capable of relaying wireless communication between one or more base station apparatuses and a terminal apparatus using a plurality of systems, and a control apparatus, the relay station apparatus acquires the quality between the terminal apparatus and each base station apparatus for which the relay station apparatus performs relaying, and the relay station apparatus for each system, and notifies the control apparatus of the acquired quality, and the control apparatus determines a data transmission method for each of a communication path between each base station apparatus and the relay station apparatus and a communication path between the relay station apparatus and the terminal apparatus on the basis of the quality and the priority of the terminal apparatus, and notifies the relay station apparatus of the determined data transmission method.

Abstract: Provided is a wireless communication system including: one or more mobile wireless station devices that communicate with one or more terminal devices; and a control device, in which the control device calculates, on the basis of a position of each of the terminal devices, a plurality of movement destination position candidates of each of the mobile wireless station devices of which communication with the terminal device satisfies a required quality, and from among a plurality of the movement destination position candidates, selects, as a movement destination position for movement control, a movement destination position candidate having a minimum sum of movement costs for movement from a home position to a movement destination for the mobile wireless station device or a movement destination position candidate for which a maximum value of a movement cost for movement from the home position to the movement destination becomes minimum for one or more mobile wireless station devices.