Abstract: To determine the environment of a radio channel even in a case where the distance between wireless communication apparatuses varies, an information processing system (1) includes: obtaining means (11) for obtaining distance information that indicates a distance between a first wireless communication apparatus and a second wireless communication apparatus that directly perform communication with each other through a radio channel, and quality information that is information associated with quality of the communication; decision means (12) for deciding an algorithm for determining the environment of the radio channel with reference to the distance information; and determination means (13) for determining the environment of the radio channel by using the quality information and the algorithm decided by the decision means (12).

Abstract: A radio network (6) and a radio terminal (4) are configured to, when the radio terminal (4) is using a first cell (10) served by a first radio station (1) as a primary cell and a second cell (20) served by a second radio station (2) as a secondary cell, change the secondary cell form the second cell (20) to a third cell (30) while keeping communication status information regarding the radio terminal (4) on the second cell (20). It is thus, for example, possible to enable a communication service in the secondary cell to be continued after the secondary cell is changed when the radio terminal which is simultaneously using a plurality of cells served by different radio stations changes the secondary cell from a cell of one radio station to a cell of another radio station.

Abstract: In order to make it possible to carry out communication while identifying a vehicle of an intended condition, a server apparatus (1) includes: a reception means (11) for receiving, from a first vehicle (31), a communication request message using wireless communication, the communication request message designating a selection condition for selecting another vehicle; a selection means (12) for selecting a second vehicle (33, 34) that satisfies the selection condition; and a transmission means (13) for transmitting the communication request message to the second vehicle (33, 34).

Abstract: A management apparatus includes: an extraction section that, on the basis of an electric power quantity of each of the plurality of electric vehicles, the electric power quantity being indicated by electric power quantity information, extracts at least one of the electric vehicles that is among the plurality of electric vehicles and that corresponds to an electric power state of one or more of the plurality of charging facilities, the one or more being included in a target area; and a transmission section that transmits information pertaining to the target area to at least one of the at least one of the electric vehicles that has been extracted by the extraction section.

Abstract: A radio terminal (2) is used in a radio communication system (100) and communicates with a radio station (1). The radio terminal (2) includes a measurement unit (20). The measurement unit (20) operates to perform, using a terminal measurement procedure for executing a first terminal measurement corresponding to radio access technology applied to the radio communication system (100), a second terminal measurement of a shared frequency shared by a plurality of radio systems including the radio communication system (100).

Abstract: In order to appropriately perform, in a mobile communication system including a plurality of mobile communication networks respectively operated by a plurality of mobile communication operators, cooperation among respective mobile communication networks, a system 2 includes a control apparatus including a second control unit that performs, via a first mobile communication network 1a operated by a mobile communication operator A, for a second mobile communication network 1b operated by a mobile communication operator B different from the first mobile communication operator A, control related to mobility for a terminal apparatus connected to the second mobile communication network 1b, and a control apparatus including a first control unit that performs, not via another mobile communication network different from the second mobile communication network 1b, for the second mobile communication network 1b, control related to mobility for the terminal apparatus connected to the second mobile communication network 1b

Abstract: A radio terminal can perform carrier aggregation using a first cell of a first radio station and a second cell of a second radio station. The first radio station performs, with the radio terminal, radio resource control for the first cell and the second cell in order to perform the carrier aggregation. Further, the first radio station transmits, to the second radio station, update information regarding an update to a configuration related to the radio resource control for the second cell. It is thus, for example, possible to prevent or reduce data transmission/reception failures which would otherwise occur while a configuration of radio parameters or the like is being changed by a radio terminal in carrier aggregation of a plurality of cells served by different radio stations.

Abstract: Signal information acquisition means acquires signal information about a traffic light installed on a road. Video acquisition means acquires a video photographed near a first parking lot entrance facing the road. Prediction means predicts whether or not a queue of waiting vehicles will be formed near the first parking lot entrance based on the video near the first parking lot entrance and the signal information. Selection means selects, from among a plurality of the parking lot entrances including the first parking lot entrance, a parking lot entrance to which a vehicle is to be guided based on a result of the prediction performed by the prediction means. Notification means notifies the vehicle of the parking lot entrance selected by the selection means.

Abstract: A radio terminal (3) can perform carrier aggregation using a first cell (10) of a first radio station (1) and a second cell (20) of a second radio station (2). The first radio station (1) or the second radio station (2) transmits constraint information to the radio terminal (3). The constraint information contains an information element necessary to specify a reception constraint and/or transmission constraint related to the first cell (10) and/or the second cell (20) when the carrier aggregation is performed. The reception/transmission constraint is a constraint related to downlink signal reception/uplink signal transmission by the radio terminal over one or more subframe periods of the primary cell (10) and the secondary cell (20). It is thus, for example, possible to contribute to reduction in wasteful power consumption in the radio terminal in the carrier aggregation of a plurality of cells served by different radio stations.

Abstract: To transmit, to a terminal, communication data corresponding to the characteristics of a network to which the terminal is connected while lightening the terminal-side processing load, a relay device comprises a reception unit configured to receive communication data addressed to a terminal from a communication device, at least one memory configured to store instructions; and at least one processor configured to execute the instructions to determine a compression parameter for the communication data on the basis of the characteristics of the network used for communication with the terminal, and a transmission unit configured to transmit the communication data compressed using the compression parameter to the terminal.

Abstract: Congestion determination means determines whether or not a road near an entrance of a first parking lot for which the vehicle is heading is congested based on sensor information output by a sensor. Selection means selects, from among one or more parking lots different from the first parking lot, a second parking lot to which the vehicle is to be guided when the congestion determination means determines that the road is congested. Notification means notifies the vehicle of the second parking lot.

Abstract: To provide a communication system capable of easily selecting group communication to participate in halfway. A communication system according to the present disclosure includes a communication terminal and a server that controls group communication among a plurality of communication terminals. The communication terminal includes: an acquisition unit that acquires information regarding group communication that has already been started among the plurality of communication terminals and is in a non-answered state due to no answer at the start; a selection unit that selects any one from one or more group communications that are candidates for participation based on the acquired information; and a transmission unit that transmits a participation request for the selected group communication to the server. The server includes a participation acceptance unit that accepts participation of the communication terminal in the selected group communication.

Abstract: A radio terminal can perform carrier aggregation using a first cell of a first radio station and a second cell of a second radio station. The first radio station performs, with the radio terminal, radio resource control for the first cell and the second cell in order to perform the carrier aggregation. Further, the first radio station transmits, to the second radio station, update information regarding an update to a configuration related to the radio resource control for the second cell. It is thus, for example, possible to prevent or reduce data transmission/reception failures which would otherwise occur while a configuration of radio parameters or the like is being changed by a radio terminal in carrier aggregation of a plurality of cells served by different radio stations.

Abstract: An information providing system includes: a target person detection means that detects a target person whose at-home status is to be managed among persons passing through a public area based on information acquired from a device installed in the public area; a moving direction identification means that identifies a moving direction of the target person; an at-home management means that updates information on an at-home status of the target person based on the estimated moving direction; and an output means that outputs the information on the at-home status of the target person.

Abstract: A transmission device is a transmission device that transmits communication data to one or more reception devices via a network. A transmission device includes: a specification unit that specifies a reception device number indicating the number of the reception devices that are a destination of communication data; a determination unit that, in a case where the reception device number is a first number, determines a data size or a bit rate of the communication data such that the data size or the bit rate becomes smaller or lower than that in a case where the reception device number is a second number smaller than the first number; a generation unit that generates the communication data by using the determined data size or bit rate; and a transmission unit that transmits the generated communication data to one or more reception devices that are the destination via the network.

Abstract: An imaging device can capture a video image of a road on which a moving object travels. In a traffic control apparatus, detection means detects the occurrence of an accident from a video image captured by an imaging device. Determination means determines the situation of the accident that has occurred based on the video image captured by the imaging device. Traffic light control means controls a traffic light installed at the intersection where the accident has occurred based on the determined situation of the accident.

Abstract: A control device according to one aspect of the present disclosure identifies a first person, acquires information on a second person related to the first person, and reads out an action information using the information on the second person, the action information representing an action of the second person for the first person.

Abstract: It is intended to provide a communication terminal capable of preventing an operator of the communication terminal from recognizing processing running in the communication terminal. A communication terminal (10) according to the present disclosure includes a communication unit (11) that transmits an emergency message and a control unit (12) that disables a user's operation of the communication terminal or a function executed by a user's operation of the communication terminal after the emergency message is transmitted, and the communication unit (11) starts data communication with a monitoring terminal and transmits data to the monitoring terminal while the function is disabled.

Abstract: In order to share a mobile communication system among a plurality of mobile communication operators for enabling provision of a more flexible service than before, an operating system 100 includes: an obtaining unit 150 configured to obtain identification information of a first terminal apparatus managed by a first mobile communication operator, and identification information of a second terminal apparatus managed by a second mobile communication operator different from the first mobile communication operator; and a first transmitting unit 160 configured to transmit, to a core network node managing a terminal apparatus connected to a core network in a mobile communication system, the identification information of the first terminal apparatus and the identification information of the second terminal apparatus.

Abstract: A communication terminal includes a communication part for selecting one of a first antenna and a second antenna and for being capable of communicating via a wireless connection with a base station connected to the first antenna and the second antenna, the first antenna being installed at a first location across a first road, the second antenna being installed at a second location across a second road intersecting the first road; a traffic flow detection part for detecting a traffic flow on at least one of the first road and the second road; and a selection part for selecting an antenna to be connected from the first antenna and the second antenna depending on the traffic flow.