Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Mari Ochiai

Takashi Asahara

Takeshi Suehiro

Shusaku Umeda

Teruko Fujii

Masaaki Takeyasu

Akinori Taira

Yoshitaka Hara

Kenichi Nakura

Akiko Iwasaki

Hideto Aikawa

A communication resource allocation device () identifies a hazardous behavior that may cause a traffic accident and has occurred in each of monitoring target areas included in a communication area of a base station () in a past reference period, so as to determine a hazard level for each of the monitoring target areas. The communication resource allocation device () allocates communication resources to each of the monitoring target areas based on the determined hazard level. The communication resource allocation device () distributes information to a roadside device () and an in-vehicle device () in each of the monitoring target areas, using the allocated communication resources.

Communication resource allocation device, communication resource allocation method, and computer readable medium

A server device includes a support information generation unit, a condition determination unit, and a resource calculation unit. The support information generation unit generates support information for each support-provided area using information from a communication terminal. The condition determination unit determines a support information generation condition being a condition concerning the support information to be generated by the support information generation unit, based on area situation information representing a situation thereof. The resource calculation unit calculates, based on the support information generation condition, amounts of calculation resource and amounts of communication resource of each support-provided area not to cause a sum of the amounts of calculation resource required in each support-provided area and a sum of the amounts of communication resource for use between the server device and a mobile terminal, to exceed total calculation/communication resource upper limit values available in all the support-provided areas.

Server device, control circuit, storage medium, and traffic support method

A communication management device () estimates communication quality between a control device () mounted on a moving object () and a driving assistance device () to provide a driving assistance service for the control device (), at a scheduled time when the moving object () passes through a communication area, which includes a scheduled path where the moving object () passes. The communication management device () notifies the driving assistance device () when the communication quality is outside a range of quality being a standard. When it is notified, the driving assistance device () changes the driving assistance service to be provided for the control device ().

Communication management device, communication management method, driving support device, driving support method and computer readable medium

A virtual map generation unit () generates a virtual map of a subjected area by dividing the subjected area into role areas each of which corresponds to each of a plurality of roles, based on the number of vehicles scheduled to travel in the subjected area specified from work plan information on a transportation work of loads by a vehicle and based on the number of loads scheduled to be placed in the subjected area specified from the work plan information. A distribution unit () distributes to the vehicle traveling in the subjected area, the virtual map generated by the virtual map generation unit ().

Traffic management apparatus, traffic management method, and computer readable medium

An in-vehicle device stores a Wake Up pattern, which notifies a mobile device of a start of communication, in an area before a data storage area of a frame and transmits the frame, the mobile device includes a modulation/demodulation circuit and a microcomputer that perform a predetermined reception process on a reception signal, a pattern determination circuit that, when the reception signal includes a Wake Up pattern, determines to start communication and activates the modulation/demodulation circuit and the microcomputer, a power detection circuit that detects power of the reception signal, and, when power is detected for a certain period of time or longer, activates the pattern determination circuit, and a Wake-Up control unit that activates the power detection circuit for a predetermined time with a constant period during a time period other than during communication.

In-vehicle communication system, mobile device, communication system, and communication method

A communication system includes a wireless IC tag and a reader/writer that performs reading and writing on the wireless IC tag via wireless communication. The reader/writer includes an error control encoder and an error control decoder. On writing data into the wireless IC tag, the reader/writer encodes the data by the error control encoder and writes real data separately from error-control-decodable data. On reading out data from the wireless IC tag, the reader/writer selects whether to read out only the real data or to read out data including error-control-decodable information to decode the data by the error control decoder based on error control information indicating whether to perform error control or not.

Radio IC tag communication system

A communication device carries out communication using N number of communication channels, where N is an integer not less than 2. The communication device includes interleavers that shuffle a data series, which is meant to be transmitted over the N number of communication channels, in at least two directions from among a time direction, a space direction, and a frequency direction, and deinterleavers that shuffle the data series back to obtain the original data series.

Interleaver, deinterleaver, communication device, and method for interleaving and deinterleaving

A communication apparatus associated with a system that uses two or more discontinuous frequency bands. The communication apparatus includes a BPF (band pass filter) including a plurality of BPFs associated with signals having respective frequency bands; a controller that controls each unit to transmit/receive the signals having the respective frequency bands; a down-converter that down-converts a filtered signal into a baseband signal while switching frequencies under control of the controller; a receiver that performs predetermined reception processing under control of the controller; and a transmitter that performs predetermined transmission processing under control of the controller, and common hardware is used in communication in all frequency bands with respect to processing of the baseband signal.

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Tokyo, Japan

Mari Ochiai