Abstract: This wireless communication terminal device includes a control circuit that: causes, after receiving a beacon from a base station device, a connection to be established between the wireless communication terminal device and the base station device using a first control program; if a connection notification request to an external server was received from one or more application programs, uses a second control program, after the establishment of the connection, to output a connection establishment notification to the one or more application programs; and after the connection establishment notification is received, outputs to a communication circuit, via the first control program, a communication request to the external server device by the one or more application programs. The communication circuit of the wireless communication terminal device transmits the communication request to the base station device.

Abstract: This sensor includes: a sensing circuit for detecting an object moving along a path; a receiving circuit for receiving, from other sensors that have detected the object, identification information for the other sensors; and a control circuit for causing a storage circuit to store the most recently received identification information for another sensor in response to the detection of the object by the sensing circuit.

Abstract: In a radio network system containing a first radio apparatus that performs central control and a second radio apparatus, the second radio apparatus receives a first signal containing first identification information indicating a transmission source during a first reception period, receives a second signal containing second identification information indicating a transmission source during a second reception period, measures first reception information on reception of the first signal, measures second reception information on reception of the second signal, and transmits first measurement information containing the first reception information and the first identification information and second measurement information containing the second reception information and the second identification information to the first radio apparatus.

Abstract: An information processing apparatus for associating an identifier of each of a plurality of sensors and a known installation position of a corresponding one of the plurality of sensors receives an identifier transmitted by a detection-complete sensor that has detected an object; associates, in a first path that is a part of the path, the identifier with an installation position of the detection-complete sensor in a reception order of a plurality of the identifiers; receives, from a detection-incomplete sensor that has not detected the object, reception strength information including an identifier of the detection-incomplete sensor and a reception strength of a signal of another one or more of the plurality of sensors in the detection-incomplete sensor; and associates, for the detection-incomplete sensor installed on a second path that is a rest of the path, the identifier of the detection-incomplete sensor and an installation position of the detection-incomplete sensor.

Abstract: An intersection information distribution apparatus includes a plurality of image capturers, one or more first wireless communicators, a position estimator, and a controller. The plurality of image capturers capture images in and around an intersection. The one or more first wireless communicators perform directional communication with a second wireless communicator mounted on a vehicle. The position estimator estimates a position of the vehicle in and around the intersection from a communication state of the directional communication. The controller selects a piece of data from among pieces of data of the images captured by the plurality of image capturers on the basis of the estimated position of the vehicle. The one or more first wireless communicators transmit the selected piece of data to the second wireless communicator of the vehicle.

Abstract: A transmission device includes N wireless transmission circuits and N transmission buffers. N is an integer equal to or greater than two. Each of the N transmission buffers is connected to a respective wireless transmission circuit of the N wireless transmission circuits. At least a part of a piece of delivery data is stored in each of the N transmission buffers before the N wireless transmission circuits establish wireless links. The N wireless transmission circuits are instructed to transmit the piece of delivery data stored in the N transmission buffers after the N wireless transmission circuits establish the wireless links.

Abstract: A wireless communication apparatus includes a first antenna circuit that forms a beam selected from among a plurality of first beams through a beamforming process performed for communication using a millimeter wave band and a monitor that displays a first pattern indicating a radiation direction of the selected beam.

Abstract: This wireless communication terminal device includes a control circuit that: causes, after receiving a beacon from a base station device, a connection to be established between the wireless communication terminal device and the base station device using a first control program; if a connection notification request to an external server was received from one or more application programs, uses a second control program, after the establishment of the connection, to output a connection establishment notification to the one or more application programs; and after the connection establishment notification is received, outputs to a communication circuit, via the first control program, a communication request to the external server device by the one or more application programs. The communication circuit of the wireless communication terminal device transmits the communication request to the base station device.

Abstract: An intersection information distribution apparatus includes a plurality of image capturers, one or more first wireless communicators, a position estimator, and a controller. The plurality of image capturers capture images in and around an intersection. The one or more first wireless communicators perform directional communication with a second wireless communicator mounted on a vehicle. The position estimator estimates a position of the vehicle in and around the intersection from a communication state of the directional communication. The controller selects a piece of data from among pieces of data of the images captured by the plurality of image capturers on the basis of the estimated position of the vehicle. The one or more first wireless communicators transmit the selected piece of data to the second wireless communicator of the vehicle.

Abstract: An intersection information distribution apparatus includes a plurality of image capturers, one or more first wireless communicators, a position estimator, and a controller. The plurality of image capturers capture images in and around an intersection. The one or more first wireless communicators perform directional communication with a second wireless communicator mounted on a vehicle. The position estimator estimates a position of the vehicle in and around the intersection from a communication state of the directional communication. The controller selects a piece of data from among pieces of data of the images captured by the plurality of image capturers on the basis of the estimated position of the vehicle. The one or more first wireless communicators transmit the selected piece of data to the second wireless communicator of the vehicle.

Abstract: A wireless communication apparatus includes a first antenna circuit that forms a beam selected from among a plurality of first beams through a beamforming process performed for communication using a millimeter wave band and a monitor that displays a first pattern indicating a radiation direction of the selected beam.

Abstract: A wireless communication apparatus includes a first antenna circuit that forms a beam selected from among a plurality of first beams through a beamforming process performed for communication using a millimeter wave band and a monitor that displays a first pattern indicating a radiation direction of the selected beam.

Abstract: A wireless communication method includes: storing antenna-pair set information and a first measurement result in association with each other for every positional-arrangement, the antenna-pair set information being information on a set of pairs of transmission antennas and reception antennas that achieves a best throughput for the positional-arrangement, the first measurement result being a measurement result of reception characteristics of a training signal transmitted from at least one of the plurality of transmission antennas; selecting current antenna-pair set information corresponding to a current positional-arrangement by comparing a second measurement result with the first measurement result stored, the second measurement result being a measurement result of reception characteristics of the training signal measured at the plurality of reception antennas in the current positional-arrangement; and establishing links between the plurality of transmission antennas and the respective plurality of reception a

Abstract: A wireless communication method includes: storing antenna-pair set information and a first measurement result in association with each other for every positional-arrangement, the antenna-pair set information being information on a set of pairs of transmission antennas and reception antennas that achieves a best throughput for the positional-arrangement, the first measurement result being a measurement result of reception characteristics of a training signal transmitted from at least one of the plurality of transmission antennas; selecting current antenna-pair set information corresponding to a current positional-arrangement by comparing a second measurement result with the first measurement result stored, the second measurement result being a measurement result of reception characteristics of the training signal measured at the plurality of reception antennas in the current positional-arrangement; and establishing links between the plurality of transmission antennas and the respective plurality of reception a

Abstract: A transmission device includes N wireless transmission circuits and N transmission buffers. N is an integer equal to or greater than two. Each of the N transmission buffers is connected to a respective wireless transmission circuit of the N wireless transmission circuits. At least a part of a piece of delivery data is stored in each of the N transmission buffers before the N wireless transmission circuits establish wireless links. The N wireless transmission circuits are instructed to transmit the piece of delivery data stored in the N transmission buffers after the N wireless transmission circuits establish the wireless links.

Abstract: Connectability determining circuitry determines connectability over a millimeter wave band with respect to a content delivery apparatus. When a determination result of the connectability indicates that connection is enabled, request-signal generating circuitry generates a connection request signal for requesting connection over a millimeter wave band, from when undownloaded content is selected until download of the selected undownloaded content is requested, and transmits the connection request signal to the content delivery apparatus via millimeter-wave wireless circuitry. Control circuitry downloads the undownloaded content from the content delivery apparatus via the millimeter-wave wireless circuitry.

Abstract: A transmission device includes: a modulator that selects an Orbital Angular Momentum (OAM) propagation mode among N (N is an integer equal to or greater than 2) OAM propagation modes in accordance with a value of bit data to be transmitted; and a transmitter that transmits a signal of the OAM propagation mode selected by the modulator.

Abstract: Connectability determining circuitry determines connectability over a millimeter wave band with respect to a content delivery apparatus. When a determination result of the connectability indicates that connection is enabled, request-signal generating circuitry generates a connection request signal for requesting connection over a millimeter wave band, from when undownloaded content is selected until download of the selected undownloaded content is requested, and transmits the connection request signal to the content delivery apparatus via millimeter-wave wireless circuitry. Control circuitry downloads the undownloaded content from the content delivery apparatus via the millimeter-wave wireless circuitry.

Abstract: A radio communication system includes: a mobile terminal apparatus that is capable of establishing a plurality of radio links that are shared in a time-division scheme; a plurality of base station apparatuses each of which establishes one radio link with the mobile terminal apparatus; and a control apparatus that selects, from among the plurality of radio links established, a data link that is used for data communication. The mobile terminal apparatus, using the data link selected, performs the data communication with one of the plurality of base station apparatus establishing the data link.

Abstract: A transmission device transmits multiplexed signals obtained by multiplexing signals of N systems corresponding to N Orbital Angular Momentum (OAM) propagation modes. The transmission device includes: an array antenna that includes M antenna elements disposed in a lattice on a plane when viewed from the plane; and a transmitter that multiplies signals obtained by branching each of the signals of N systems into M signals by weighting coefficients of phase shift angles based on angles of the respective M antenna elements with respect to a reference axis passing through a reference point viewed from the reference point on the plane according to the OAM propagation modes, multiplexes the signals of N systems multiplied by the weighting coefficients of the phase shift angles, and transmits signals obtained by the multiplexing from the M antenna elements. M and N are integers equal to or larger than 2.