Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Takahisa Yamauchi

Yukimasa Nagai

Akinori Taira

Sachiko Taniguchi

Takenori Sumi

Akihiro Shibuya

Tetsuya Mishuku

Hajime Hasegawa

Teruko Fujii

Ryuma Matsushita

Yuya Takatsuka

Yoshihiro Otsuka

Kentaro Sawa

Koshiro Ishihara

Tetsuya Kosaka

Genya Kotani

Yohei Yasutomo

A vehicle control system () controls a vehicle whereon a plurality of ECUs () and a vehicle integrated control device () to control the plurality of ECUs () are mounted. The vehicle integrated control device () includes a control target value operation unit to calculate a control target value to control the plurality of ECUs (). Further, the vehicle integrated control device () includes a prediction control value operation unit to estimate a state of the vehicle in the future, and to calculate a prediction control value to control the plurality of ECUs (). The vehicle integrated control device () includes an instruction signal generation unit to generate an instruction signal including an operation instruction and a prediction control instruction. Each of the plurality of ECUs () includes an actuator control unit to control an actuator () based on the prediction control instruction.

Vehicle control system, vehicle integrated control device, electronic control device, network communication device, vehicle control method and computer readable medium

A communication device that wirelessly communicates with a plurality of wireless slave stations includes: a wireless network control unit that acquires network configuration information including the number of repeating stages between the communication device and the plurality of wireless slave stations and the number of wireless slave stations that is the total number of the plurality of wireless slave stations; a parameter management unit that stores a delay time for communication; and a communication cycle calculation unit that calculates a communication cycle based on the network configuration information and the delay time.

Communication device, communication method, and communication system

A transmission-source radio communication apparatus includes a transmission-time-sum integrating unit integrating transmission time per unit time of a radio frame, a transmission-time estimating and integrating unit estimating and integrating the transmission time per unit time in the future of a radio device number frame, a transmission-limit-time-of-day estimating unit estimating, using two integration results, a sum-limit-exceeding estimated time of day and a less-than-sum-limit estimated time of day, and a transmission control unit notifying a destination radio communication apparatus of the two estimated times of day. The destination radio communication apparatus includes a reception control unit determining, using the two estimated times of day, whether reception of a radio frame from the transmission-source radio communication apparatus is stopped and a transmission control unit determining, using the two estimated times of day, whether transmission of a radio frame to the transmission-source radio communication apparatus is stopped.

Radio communication system, transmission-source radio communication apparatus, destination radio communication apparatus, and radio communication method

A terminal mode of at least a part of terminals in a centralized control area and terminals in a distributed control area is set to a time division control mode for performing communication in a time division manner. The terminals in the centralized control area, the terminal mode of which is other than the time division control mode, are set in a centralized control mode. The terminals, the terminal mode of which is other than the time division control mode, are set in a distributed control mode. The terminals set in the time division control mode perform transmission in a communication period in which communication is permitted. The terminals set in the centralized control mode and the terminals set in the distributed control mode perform communication without depending on the communication period.

Communication system, communication terminal, and communication method

A base station of a radio communication system emits a radio wave having the same frequency by time division toward a plurality of specific areas from a plurality of antenna elements by using a multiple-beam antenna to form a plurality of spot beams, and transmits broadcast information through a plurality of beacon channels. Upon reception of the broadcast information, a terminal that exists in any one of the plurality of specific areas selects an optimum beacon channel, and transmits a communication establishment request and a bandwidth request to the base station through a request channel corresponding to information for identifying the antenna element, which is included in the broadcast information received through the selected optimum beacon channel. Upon reception of the requests, the base station schedules, when a channel is to be allocated, a channel allocation time including downlink and uplink data bandwidths and the like.

Radio communication system and radio communication method

A first wireless terminal station transmits beam transmission direction identification information in all directions. A second wireless terminal station receives the transmission direction identification information, combines reception direction identification information and the transmission direction identification information, and transmits directivity direction combination information to a wireless base station. The first and the second wireless terminal stations form directional beams in directions indicated by the directivity direction combination information to thereby perform a direct communication.

Wireless communication system, wireless terminal station, wireless base station, and wireless communication method

A base station assigns a most appropriate carrier from wide frequency bands in response to a re-request for channel establishment received from a mobile station, even if a same slot as a slot last assigned is assigned. Furthermore, a frequency management table is managed in which carriers that form a radio channel and are grouped by a specific number thereof so as to be distributed over wide frequency bands. Priorities used to search groups are individually provided for base stations that form a system. This allows neighboring base stations to distribute carriers over the wide frequency bands.

Method of assigning radio channels

A control unit measures a phase error between a reference timing of a mobile station and a reception timing from a base station based on reception data from a reception unit and a count from a reference timing counter unit, determines a frequency deviation correction value calculation period corresponding to the measured phase error, and outputs it to a frequency deviation correction value calculation unit. The frequency deviation correction value calculation unit does not calculate a deviation at every reception time when intermittent reception is repeated, but calculates a deviation at intervals following the frequency deviation correction value calculation period given from the control unit.

Timing control device and timing control method

A radio communication apparatus includes a low-rate clock oscillator for generating a low-rate clock signal used for reception timing estimation; a frequency deviation measuring duration controller for determining a deviation measuring duration of measuring a frequency deviation of the low-rate clock signal in accordance with an intermittent time interval of the radio signal; a frequency deviation measuring section for measuring the frequency deviation of the low-rate clock signal over the deviation measuring duration; and a timing counter for correcting the frequency deviation of the low-rate clock signal, for measuring an intermittent span of the received signal in response to the low-rate clock signal after the correction, and for generating the estimated reception timing of the radio signal.

Radio communication apparatus and its reception timing estimating method

A mobile communication system which comprises a base station and a mobile station that communicates therewith while performing frequency hopping based on a predetermined hopping sequence. Based on the received power of a signal received from the base station at a first frequency in the hopping sequence, the mobile station switches the first frequency to a second one next thereto in the hopping sequence and keeps on communicating with the base station at the second frequency.

Growing community of inventors

Tokyo, Japan

Takahisa Yamauchi