Abstract: A communication controller includes a position-information acquiring unit, a movement-information acquiring unit, a selector, and a determination unit. The position-information acquiring unit acquires position information of each of a plurality of base-station devices. The movement-information acquiring unit acquires movement information of a terminal device. The selector selects, as a handover candidate, at least one base-station device from among the plurality of base-station devices in accordance with the position information and the movement information. The determination unit determines a base-station device that is a handover destination, in accordance with a result of a cell search performed on the at least one base-station device selected by the selector.

Abstract: A communication controller includes a position-information acquiring unit, a movement-information acquiring unit, a selector, and a determination unit. The position information acquiring unit acquires position information of each of a plurality of base-station devices. The movement-information acquiring unit acquires movement information of a terminal device. The selector selects, as a handover candidate, at least one base-station device from among the plurality of base-station devices in accordance with the position information and the movement information. The determination unit determines a base-station device that is a handover destination, in accordance with a result of a cell search performed on the at least one base-station device selected by the selector.

Abstract: A communication system includes a base station apparatus, a mobile station apparatus, and a communication device. The base station apparatus performs communication with one or a plurality of the communication devices via the mobile station apparatus. The mobile station apparatus includes a first mobile station communicator that performs first communication with the base station apparatus, a second mobile station communicator that performs second communication with the communication device, and a mobile station controller that acquires a device type of the communication device and, on the basis of the device type thus acquired, generates request information for requesting the base station apparatus for a communication control configuration of the first communication.

Abstract: A base station device includes: a communication unit configured to communicate with a terminal device using a beam which is output in a specific direction; and a control unit. The control unit is configured to acquire a first communication traffic volume of communication with a first terminal device which is performed using a first beam, and control the communication unit such that the communication with the first terminal device is performed using a second beam different from the first beam based on the first communication traffic volume.

Abstract: A relay station apparatus includes a communication unit configured to wirelessly communicate with a terminal apparatus and a base station apparatus, respectively, a first communication control unit configured to control communication with the base station apparatus, and a second communication control unit configured to control communication with the terminal apparatus. The first communication control unit measures a radio environment based on measurement control information received from the base station apparatus and determines whether to change the base station apparatus based on a measurement result of the radio environment. When determining that the base station apparatus need to be changed, the first communication control unit starts processing for changing the base station apparatus.

Abstract: A communication system includes a base station apparatus, a mobile station apparatus, and a communication device. The base station apparatus performs communication with one or a plurality of the communication devices via the mobile station apparatus. The mobile station apparatus includes a first mobile station communicator that performs first communication with the base station apparatus, a second mobile station communicator that performs second communication with the communication device, and a mobile station controller that acquires a device type of the communication device and, on the basis of the device type thus acquired, generates request information for requesting the base station apparatus for a communication control configuration of the first communication.

Abstract: A terminal device includes: a communication unit; and a control unit. The control unit transmits a measurement result relating to a radio wave environment and connection switching means information indicating which of two or more means of connection switching to another base station device is used to a first base station device through the communication unit, receives instruction information corresponding to the transmitted connection switching means information from the first base station device through the communication unit, and performs connection with a second base station device based on the instruction information.

Abstract: A base station device includes: a communication unit configured to communicate with a terminal device using a beam which is output in a specific direction; and a control unit. The control unit is configured to acquire a first communication traffic volume of communication with a first terminal device which is performed using a first beam, and control the communication unit such that the communication with the first terminal device is performed using a second beam different from the first beam based on the first communication traffic volume.

Abstract: A terminal device; a base station device; an area detection unit configured to detect a position registration area to which the base station device belongs; and a management unit configured to, in a case where the area detection unit detects a change in the position registration area to which the base station device belongs, associate information for specifying a position registration area after change with information for specifying a terminal device connected to the base station device are included.

Abstract: A mobile communication system includes: a terminal device; a base station device configured to communicate with the terminal device by forming a cell; and an area detection unit configured to detect a location registration area to which the base station device belongs. In a case that the area detection unit has detected a change in the location registration area to which the base station device belongs, the base station device is configured to change cell identification information of the cell formed by the base station device from first cell identification information usable in a location registration area before the change to second cell identification information usable in a location registration area after the change.

Abstract: A terminal device and a communication system which are capable of starting LAA communication with a lower possibility of interference are provided. A communication unit performs communication using each of a first network and a second network. A communication control unit notifies a base station device constituting the first network of allocated frequency band exclusion information indicating a frequency band to be excluded from frequency bands allocated to the terminal device, and controls the communication unit so as to connect to the base station device using a frequency band allocated by the base station device.

Abstract: A terminal device and a communication system which are capable of starting LAA communication with a lower possibility of interference are provided. A communication unit performs communication using each of a first network and a second network. A communication control unit notifies a base station device constituting the first network of allocated frequency band exclusion information indicating a frequency band to be excluded from frequency bands allocated to the terminal device, and controls the communication unit so as to connect to the base station device using a frequency band allocated by the base station device.