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: A driving assistance device according to the present disclosure is capable of being mounted on a vehicle. The vehicle includes: a vehicle body; a detection device capable of detecting a state around the vehicle; and a display unit visually recognizable by a driver. The driving assistance device includes: a memory; and a processor configured to: determine whether the two vehicles are allowed to pass each other based on the state, size information of a vehicle body of another vehicle, and a size of the vehicle body of the vehicle; search for, when determining that passing between the two vehicles is not performable, a first evacuation candidate area to which the vehicle is allowed to evacuate based on the state detected along a traveling trajectory of the vehicle by the detection device; and display a search result of the first evacuation candidate area on the display unit.

Abstract: A non-personal basic service set control point/access point (non-PCP/AP) communication apparatus includes a reception circuit, an estimation circuit, and a transmission circuit. The reception circuit receives a Directional Multi-Gigabit (DMG) Beacon frame including a sector sweep (SSW) field, the SSW field including a Parameter subfield indicating a value obtained by using a transmission Equivalent Isotropic Radiated Power (EIRP) of a PCP/AP communication partner apparatus and a reception antenna gain of the PCP/AP communication partner apparatus. The estimation circuit estimates an expected reception power at the PCP/AP communication partner apparatus by using the value of the Parameter subfield, and checks inequality between the estimated expected reception power and a receiver sensitivity value. The transmission circuit transmits a frame for Association Beamforming Training (A-BFT) if the estimated expected reception power is larger than the receive sensitivity value.

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 non-personal basic service set control point/access point (non-PCP/AP) communication apparatus includes a reception circuit, an estimation circuit, and a transmission circuit. The reception circuit receives a Directional Multi-Gigabit (DMG) Beacon frame including a sector sweep (SSW) field, the SSW field including a Parameter subfield indicating a value obtained by using a transmission Equivalent Isotropic Radiated Power (EIRP) of a PCP/AP communication partner apparatus and a reception antenna gain of the PCP/AP communication partner apparatus. The estimation circuit estimates an expected reception power at the PCP/AP communication partner apparatus by using the value of the Parameter subfield, and checks inequality between the estimated expected reception power and a receiver sensitivity value. The transmission circuit transmits a frame for Association Beamforming Training (A-BFT) if the estimated expected reception power is larger than the receive sensitivity value.

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: A non-personal basic service set control point/access point (non-PCP/AP) communication apparatus includes a reception circuit, an estimation circuit, and a transmission circuit. The reception circuit receives a Directional Multi-Gigabit (DMG) Beacon frame including a sector sweep (SSW) field, the SSW field including a Parameter subfield indicating a value obtained by using a transmission Equivalent Isotropic Radiated Power (EIRP) of a PCP/AP communication partner apparatus and a reception antenna gain of the PCP/AP communication partner apparatus. The estimation circuit estimates an expected reception power at the PCP/AP communication partner apparatus by using the value of the Parameter subfield, and checks inequality between the estimated expected reception power and a receiver sensitivity value. The transmission circuit transmits a frame for Association Beamforming Training (A-BFT) if the estimated expected reception power is larger than the receive sensitivity value.

Abstract: A non-personal basic service point/access point (PCP/AP) communication device includes a reception circuit that receives a DMG Beacon frame, a judging circuit that judges whether or not to transmit a frame used for beamforming training (BFT), using information relating to reception antenna gain of a PCP/AP communication device included in a DMG Beacon frame and information relating to reception power of a DMG Beacon frame, and a transmission circuit that transmits the frame used for BFT in a case of the judging circuit having judged to transmit the frame used for BFT.

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 base-station control apparatus includes: a number-of-training-packets determining circuit that determines the number of training packets to be transmitted by a wireless terminal, based on the number of first directional beam patterns used by a first base-station apparatus connected to the wireless terminal and the number of second directional beam patterns used by at least one second base-station apparatus not connected to the wireless terminal; and a notification issuing circuit that issues a notification indicating the determined number of training packets to the first base-station apparatus.

Abstract: A communication control device includes a performance position determination unit that determines, from among first to Nth zones (N is an integer greater than or equal to 2) each used to display information by using differences in light emission states of light emitting units included in a plurality of slave devices, the first zone and the second zone in which the information is to be displayed, on the basis of the information and positions of the slave devices and further includes a performance control unit that transmits, to each of the slave devices, a first control command that controls the light emission state of the light emitting unit in order to display the information at a plurality of positions between the first zone and the second zone.

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 non-personal basic service point/access point (PCP/AP) communication device includes a reception circuit that receives a DMG Beacon frame, a judging circuit that judges whether or not to transmit a frame used for beamforming training (BFT), using information relating to reception antenna gain of a PCP/AP communication device included in a DMG Beacon frame and information relating to reception power of a DMG Beacon frame, and a transmission circuit that transmits the frame used for BFT in a case of the judging circuit having judged to transmit the frame used for BFT.

Abstract: A location estimation system for estimating a location of a wireless communication terminal, the location estimation system including first to M-th wireless communication devices and a control device, wherein i-th wireless communication device includes communication circuitry, which in operation, receives a signal transmitted from the wireless communication terminal using beams in Ni directions, and control circuitry, which in operation, calculates Ni reception qualities corresponding to the beams in the Ni directions, respectively, and wherein the control device includes control circuitry, which in operation, estimates i-th arrival direction of the signal received by the i-th wireless communication device by comparing the Ni reception qualities with the radiation angle characteristics of the beams in the Ni directions, and estimates the location of the wireless communication terminal based on the first to the M-th arrival directions estimated and locations of the first to the M-th wireless communication devi

Abstract: A base-station control apparatus includes: a sub-anchor candidate selector that selects sub-anchor candidates from base-station apparatuses different from a first base-station apparatus connected to a wireless terminal; an arrival-direction estimator that estimates arrival direction vectors with respect to the first base-station apparatus and the candidates, based on reception qualities of signals that the first base-station apparatus and the candidates receives from the wireless terminal; a sub-anchor selector that selects a sub-anchor from the candidates, based on angles made by the estimated arrival direction vectors and line segments each having end points at positions of the first base-station apparatus and the corresponding candidate; and a position estimator that estimates a position of the wireless terminal, based on the arrival direction vectors with respect to the first base-station apparatus and the sub-anchor.

Abstract: A base-station control apparatus includes: a sub-anchor candidate selector that selects sub-anchor candidates from base-station apparatuses different from a first base-station apparatus connected to a wireless terminal; an arrival-direction estimator that estimates arrival direction vectors with respect to the first base-station apparatus and the candidates, based on reception qualities of signals that the first base-station apparatus and the candidates receives from the wireless terminal; a sub-anchor selector that selects a sub-anchor from the candidates, based on angles made by the estimated arrival direction vectors and line segments each having end points at positions of the first base-station apparatus and the corresponding candidate; and a position estimator that estimates a position of the wireless terminal, based on the arrival direction vectors with respect to the first base-station apparatus and the sub-anchor.