Abstract: An information processing method includes: an association step of associating pieces of wireless signal information that are respectively transmitted by a plurality of base stations and are measured at a plurality of measurement positions with cells of the base stations, for each of the measurement positions; and an interference calculation step of calculating interference between cells of the plurality of base stations based on the pieces of wireless signal information associated with the cells of the base stations.

Abstract: A wireless communication method according to an embodiment is a method executed by a wireless terminal apparatus and a quality prediction engine that predicts a quality related to communication performed by the wireless terminal apparatus, and the method includes: by the wireless terminal apparatus, notifying the quality prediction engine of information about a plurality of wireless base stations connectable to the wireless terminal apparatus, model information of the wireless terminal apparatus, information about wireless communication environment around the wireless terminal apparatus, and information detected by a sensor mounted on the wireless terminal apparatus; by the quality prediction engine, calculating, based on the notified information, a predicted value of a communication quality when the wireless terminal apparatus is connected to the plurality of connectable wireless base stations in accordance with a prediction function, and notifying the wireless terminal apparatus of the calculated predicted

Abstract: An embodiment of the present invention is a local wireless communication system that emits a radio wave in a licensed band to form a wireless communication environment in a predetermined area. The system includes a base station configured to emit a radio wave, a plurality of sensors disposed along an edge of the area, and a control apparatus. The sensors each measure a radio field intensity of the radio wave emitted from the base station, and feed the radio field intensity back to the control apparatus via the base station. The control apparatus controls a transmission power of the radio wave from the base station to control the fed radio field intensity.

Abstract: There are provided a collection unit that collects priority information indicating priority of radio communication set for each base station and route information for specifying a wired communication route for each base station, a radio parameter calculation unit that calculates a radio parameter of radio communication of each base station to reflect the priority indicated by the priority information, a wired parameter calculation unit that calculates, for each wired communication route specified by the route information, a wired parameter of wired communication of a corresponding base station based on the radio parameter calculated by the radio parameter calculation unit to reflect the priority indicated by the priority information, and a setting unit that sets the radio parameter calculated by the radio parameter calculation unit for each base station and sets the wired parameter calculated by the wired parameter calculation unit for each wired communication route.

Abstract: A wireless LAN system where an interfering communication device is present around a base station device and a terminal device includes an interference control signal transmitter that transmits an interference control signal that causes the interfering communication device to wait for transmission, and an interference control signal management device that collects wireless environment information, sets wireless LAN communication between the base station device and the terminal device, which are protection targets, as protected communication, and causes the interference control signal transmitter to transmit an interference control signal that causes the interfering communication device to wait for transmission, and the interference control signal management device instructs the interference control signal transmitter to start transmitting the interference control signal when detecting a start of the protected communication and instructs the interference control signal transmitter to stop transmitting the inter

Abstract: In a wireless LAN system that performs multi-user transmission, an access point device includes: a selection unit configured to select, as terminals to be caused to transmit CTS in response to an MU-RTS frame, terminals that satisfy predetermined conditions and include at least a terminal that is to be protected and has to satisfy predetermined low latency and low jitter, regardless of whether or not the terminals are terminals to which a resource for transmitting data should be allocated; an allocation unit configured to allocate the resource for transmitting data to the terminals; a frame generation unit configured to generate the MU-RTS frame such that the terminals selected by the selection unit transmit the CTS, and generates a frame that contains a signal indicating the resource allocated by the allocation unit; and a communication unit configured to transmit the frames generated by the frame generation unit to the plurality of terminals.

Abstract: Provided are: a first wireless station, a second wireless station that can move to an arbitrary position in a three-dimensional space and perform wireless communication with the first wireless station, and a measuring device that measures the position of the second wireless station in the three-dimensional space to obtain measurement information. At least one out of the first wireless station, the second wireless station, and the measuring device includes: an acquisition unit that acquires reception signal information that was received by the first wireless station or the second wireless station, and a calculation unit that associates the measurement information and the reception signal information with each other and calculates the propagation characteristics between the first wireless station and the second wireless station.

Abstract: Provided are: an extraction unit that, based on input information from an external source, extracts position information regarding a transmitting station and a receiving station and the frequency of radio waves transmitted by the transmitting station; a calculation unit that calculates the three-dimensional distance between the transmitting station and the receiving station and the free space loss of radio waves based on the position information and the frequency; a processing unit that performs processing for, with use of a two-dimensional image of a region that includes the transmitting station and the receiving station, extracting the edges of structures that reflect radio waves in the two-dimensional image; a generation unit that generates input data for use in machine learning, based on the position information, the three-dimensional distance, the free space loss, and the edge; and a learning unit that performs machine learning to estimate the propagation characteristics of radio waves between the transm

Abstract: Provided is a wireless communication system that performs priority control by setting, depending on a type of transmission data, a channel use period during which exclusive use of a channel after a right to access the channel is acquired is permitted. The wireless communication system includes a measurement unit that measures quality measurement information related to a quality of wireless communication, a parameter setting unit that makes, when a latency in transmission of a prioritized frame due to transmission of a non-prioritized frame is not expected based on the quality measurement information measured by the measurement unit, settings such that the channel use period for the transmission of the non-prioritized frame is changed to be longer, and a MAC frame generation unit that generates a MAC frame which permits continuous transmission of the non-prioritized frames within the channel use period set by the parameter setting unit.

Abstract: In a random access radio communication system configured to perform downlink communication from a radio base station to radio terminals by random access, the radio terminals include one or more low latency terminals requiring low latency and one or more non-low latency terminals not requiring low latency, and the low latency terminals and the non-low latency terminals are configured to be distinguished by service set identifiers (SSIDs). The random access radio communication system includes terminal assignment destination control unit of distinguishing the low latency terminals and the non-low latency terminals in accordance with the SSIDs and evenly distributing the terminals into a plurality of communication channels, and random access control unit of performing priority control on the low latency terminals and the non-low latency terminals for each communication channel so that the downlink communication in the low latency terminal satisfies a predetermined delay time.