Abstract: According to one embodiment, a wireless device comprises circuitry configured to generate a control signal of a control target, generate transfer necessity indicating whether transfer of the control signal is necessary or unnecessary, generate control information including the control signal and the transfer necessity, and transmit a wireless signal corresponding to the control information.

Abstract: According to one embodiment, a wireless device includes an identification information generation unit, a framing unit, and a transmission unit. The identification information generation unit generates identification information for identifying a packet among all other flooding packets to be relayed on the wireless network by arithmetic processing. The framing unit generates a wireless frame when a packet is transmitted to another wireless device as an origin node. The wireless frame includes the packet and the identification information generated by the identification information generation unit. The transmission unit transmits the wireless frame including the packet and the identification information generated by the identification information generation unit.

Abstract: According to one embodiment, an authentication device includes a memory and a processor. The memory stores a private key used for wireless communication executed by using each of network slices. The processor transmits a first random number for updating a first private key used for the wireless communication executed by using a first network slice and use start timing information regarding use start timing of the updated first private key to the wireless communication device by using a second network slice. The first private key updated based on the first random number is stored in the memory, and used for the wireless communication between a base station and the wireless communication device based on the use start timing.

Abstract: According to one embodiment, an electronic apparatus includes a receiver, a processor and a transmitter. The receiver receives a reception signal including a value indicating a physical quantity related to operation of a control target object at a communication destination. The processor determines a state of wireless communication between the electronic apparatus and the communication destination. The processor calculates a target value for instructing operation of the control target object. The processor generates a transmission signal including a value obtained by modifying the target value. The transmitter transmits the transmission signal to the control target object.

Abstract: According to one embodiment, an electronic apparatus includes a receiver, a processor and a transmitter. The receiver receives a reception signal including a value indicating a physical quantity related to operation of a control target object at a communication destination. The processor determines a state of wireless communication between the electronic apparatus and the communication destination. The processor calculates a target value for instructing operation of the control target object. The processor generates a transmission signal including a value obtained by modifying the target value. The transmitter transmits the transmission signal to the control target object.

Abstract: According to one embodiment, an electronic apparatus includes a transmitter circuitry, a receiver circuitry, and a processing circuitry. The transmitter circuitry transmits a first data frame including first data to a destination apparatus. The receiver circuitry receives first acknowledgment information indicative of a reception state of the first data included in the first data frame. The receiver circuitry receives second acknowledgment information indicative of a reception state of the first data included in a second data frame. The second data frame is transmitted from another electronic apparatus to the destination apparatus. The processing circuitry determines whether the first data frame is retransmitted, based on at least one of the first and second acknowledgment information.

Abstract: According to one embodiment, a wireless communication apparatus includes a transmitter. The transmitter transmits, in a first period, a first information frame. The first information frame includes first, verification information and a first key usable in the first period. The transmitter transmits, in the first period and after transmitting the first information frame, a data frame including first data. The transmitter transmits, in the first period and after transmitting the first information frame, a second information frame. The data frame includes a fourth key usable in a second period following the first period. The transmitter transmits, in the second period, a third information frame including third verification information and the fourth key.

Abstract: According to one embodiment, a wireless communication device includes: controlling circuitry configured to set at least one of: a first transmission prohibition period for a first network to which the wireless communication device belongs; or a second transmission prohibition period for a second network, and to determine, when a first frame addressed to another device is received in a case that the first transmission prohibition period is not set and the second transmission prohibition period is set, a state of a wireless medium based on comparing a reception level of the first frame with a threshold defined corresponding to one of the first network and the second network, to which a sender of the first frame belongs.

Abstract: A wireless communication apparatus which can simultaneously conduct communication on at least two frequency channels is described. The apparatus includes a communication unit which refers to a connection management table to determine a communication system which can be used by a wireless communication terminal using an identifier of the wireless communication terminal, and conducts communication with the wireless communication terminal on a second frequency channel using the communication system, when a request from the wireless communication terminal to change the first frequency channel to the second frequency channel is permitted.

Abstract: According to one embodiment, a wireless communication device includes: a receiver configured to receive a plurality of first frames transmitted by spatial multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the first frames are successfully received and first information specifying at least one communication device. The receiver is configured to receive a plurality of third frames transmitted by spatial multiplexing from a communication device having transmitted the first frame the check result of which represents failure and the communication device specified in the first information.

Abstract: According to one embodiment, a wireless communication device includes: controlling circuitry configured to set at least one of: a first transmission prohibition period for a first network to which the wireless communication device belongs; or a second transmission prohibition period for a second network, and to determine, when a first frame addressed to another device is received in a case that the first transmission prohibition period is not set and the second transmission prohibition period is set, a state of a wireless medium based on comparing a reception level of the first frame with a threshold defined corresponding to one of the first network and the second network, to which a sender of the first frame belongs.

Abstract: An electronic device comprises first and second array antennas, and first and second wireless communication devices. An orientation of the first array antenna is different from an orientation of the second array antenna. A frequency band of the second wireless communication device is lower than a frequency band of the first wireless communication device. An electromagnetic wave power of the second wireless communication device is larger than an electromagnetic wave power of the first wireless communication device. A size or distance of antenna elements of the second array antenna is larger than a size or distance of antenna elements of the first array antenna.

Abstract: A wireless communication apparatus which can simultaneously conduct communication on at least two frequency channels is described. The apparatus includes a communication unit which refers to a connection management table to determine a communication system which can be used by a wireless communication terminal using an identifier of the wireless communication terminal, and conducts communication with the wireless communication terminal on a second frequency channel using the communication system, when a request from the wireless communication terminal to change the first frequency channel to the second frequency channel is permitted.

Abstract: According to one embodiment, a wireless communication device includes: a receiver configured to receive a plurality of first frames transmitted by spatial multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the first frames are successfully received and first information specifying at least one communication device. The receiver is configured to receive a plurality of third frames transmitted by spatial multiplexing from a communication device having transmitted the first frame the check result of which represents failure and the communication device specified in the first information.

Abstract: According to one embodiment, an electronic apparatus instructs an operation of at least a part of a control target device via wireless communication. The electronic apparatus comprises a processor configured to acquire communication quality information of the wireless communication between the electronic apparatus and the control target device, acquire first information indicating a degree or a risk that can be caused by the operation, and generate a control signal instructing the operation based on the communication quality information and the first information.

Abstract: According to one embodiment, a wireless base station includes a transmitter and a receiver. The transmitter transmits a control signal and one or more operation signals to the second wireless communication terminal. The control signal instructs to transmit a signal that requests terminal-to-terminal communication between a first wireless communication terminal and the second wireless communication terminal. The operation signals are used for operating at least a part of the first wireless communication terminal. The receiver is capable of receiving at least one of a response signal or a data signal transmitted from the first wireless communication terminal to the second wireless communication terminal after the operation signals are transmitted.

Abstract: According to one embodiment, an electronic apparatus mounted on a moving object, includes at least one variable directivity antenna; controlling circuitry configured to acquire a traveling position of the moving object and determine an antenna pattern for the variable directivity antenna based on a location of a ground apparatus to be a communication target and the acquired traveling position; and a communication circuit configured to transmit positional information including the traveling position or receive control information from the ground apparatus via the variable directivity antenna for which the determined antenna pattern is set.

Abstract: According to one embodiment, a wireless communication apparatus connected to a base station via a first network and connected to a terminal apparatus via a second network is provided. The wireless communication apparatus includes a receiver and a transmitter. The receiver is configured to receive a first signal representing that the terminal apparatus holds data to be transmitted, from the terminal apparatus at first timing and receive the data from the terminal apparatus at second timing. The first transmitter is configured to transmit a second signal requesting the base station to allocate a resource to transmit the data to the base station, to the base station after the first timing and before the second timing.

Abstract: According to one embodiment, a system includes a processor and a transmitter. The processor is configured to generate a first control signal including a first instruction to operate at least part of a terminal with in a first validity and generate a second control signal including a second instruction to operate at least part of the terminal within a second validity period after an operation of the at least part of the terminal in accordance with the first instruction. The transmitter is configured to transmit the first control signal to the terminal at first timing and transmit the second control signal to the terminal at second timing after the first timing. An end of the first validity period is after the second validity timing.

Abstract: According to one embodiment, a wireless apparatus determines a state of a first wireless link with a first mobile station and a state of a second wireless link with a second mobile station in a first communication mode, and transmits a first signal to the first and the second mobile stations in accordance with the states of the first and the second wireless links. In response to the first signal, the first communication mode is changed to a second communication mode in which the wireless apparatus communicates with the second mobile station via a direct communication between the first and the second mobile stations.