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, a wireless communication device includes a receiver configured to receive a plurality of first frames which are transmitted by multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the plurality of first frames are successfully received and first information specifying at least one wireless communication device. The receiver is configured to receive a plurality of third frames transmitted by multiplexing in response to the second frame.

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: According to one embodiment, a communication system includes a base station based on a communication standard and an allocation information generation device from the base station. The allocation information generation device comprises first and second generators. The first and the second generators output first and second allocation information until a first time elapses after an allocation request is received. The allocation information generation device transmits, to the base station, one of the first and the second allocation information which satisfies a constraint defined by the communication standard.

Abstract: According to one embodiment, a wireless communication system includes a base station, a first allocation determination device, and a second allocation determination device. The base station is capable of wirelessly communicating with terminal devices each having either a first characteristic or a second characteristic. The first allocation determination device determines allocation of communication resources to at least one of the terminal devices. The second allocation determination device determines allocation of communication resources to at least another one of the terminal devices.

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 base station includes a communication circuit and a controller. The communication circuit receives and transmits uplink data and downlink data. The controller calculates a downlink remaining time based on a first time when the communication circuit receives a resource allocation request, a second time when the communication circuit receives the uplink data, a third time when the communication circuit receives the downlink data, and a round-trip delay threshold time, and determines a fourth time when the communication circuit will transmit the downlink data to the terminal based on the downlink remaining time.

Abstract: A system capable of communicating with a terminal includes a processor and a transmitter. The processor is configured to generate a first control signal including a first target position to operate at least part of the terminal and generate a second control signal including a second target position to operate at least part of the terminal after an operation of the at least part of the terminal in accordance with the first target position. The transmitter is configured to transmit the first control signal to the terminal at a first timing and transmit the second control signal to the terminal at a second timing after the first timing. The first target position is farther than a position which the at least part of the terminal is to reach at the second timing.

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: 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: A wireless communication system can change a subcarrier spacing. The system includes a control device and an allocation determination device. The control device controls wireless communication between the terminal devices and the communication device. The allocation determination device generates allocation information indicating a communication block included in communication blocks, where the allocation information is for at least one of the terminal devices. The control device determines an allocation time for allocating by the allocation determination device. The control device outputs, to the allocation determination device, an allocation request including reference information regarding communication and information regarding the allocation time. The allocation determination device outputs the allocation information regarding the terminal devices to the control device by a reply time before the allocation time using the reference information.

Abstract: According to one embodiment, a base station communicably connected to a wireless terminal is provided. The base station includes a processor and a transmitter. The processor is configured to acquire communication condition information indicating conditions of wireless communication with the wireless terminal. The transmitter is configured to transmit the communication condition information to a system managing a first network slice and a second network slice which can be used by the base station.

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 which are transmitted by multiplexing; and a transmitter configured to transmit a second frame containing check results indicating whether the plurality of first frames are successfully received and first information specifying at least one wireless communication device. The receiver is configured to receive a plurality of third frames transmitted by multiplexing in response to the second frame.

Abstract: According to one embodiment, a wireless communication apparatus includes transmitter circuitry, receiver circuitry and processing circuitry. The processing circuitry is configured to determine, based on a first acknowledgement frame and a second acknowledgement frame, a first data frame received by a first wireless communication apparatus and not received by a second wireless communication apparatus among data frames. The processing circuitry is configured to determine that the transmitter circuitry transmits at least one of the first data frame and a second data frame to the second wireless communication apparatus, and the first wireless communication apparatus transmits the first data frame to the second wireless communication apparatus.

Abstract: According to one embodiment, an electronic apparatus includes a transmitter. The transmitter transmits data to be transmitted to a third wireless communication apparatus and a first wireless signal to instruct transmission of the data to the third wireless communication apparatus, to the first and second wireless communication apparatuses. The transmitter transmits, if any second wireless signal transmitted from the first or second wireless communication apparatuses is not detected within a first period after transmission of the first wireless signal, a third wireless signal to instruct transmission of the data to the third wireless communication apparatus to the first and second wireless communication apparatuses in order to instruct retransmission of the data.

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

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.

Abstract: According to one embodiment, a wireless relay device in a multi-hop network including at least a gateway device, the wireless relay device comprises a determination unit configured to determine whether a wireless device connected to the wireless relay device supports a routing protocol of the multi-hop network, and a notification unit configure to notify the gateway device or another wireless relay device in the multi-hop network of information for identifying the wireless device when the determination unit determines that the wireless device does not support the routing protocol.

Abstract: A wireless communication device includes a transmitter and a receiver. The transmitter transmits a first frame containing notification information to specify first and second wireless terminals and a second frame for channel estimation. The receiver receives a third frame transmitter from the first wireless terminal and a fourth frame transmitted from the second wireless terminal. The third frame and the fourth frame are transmitted in a multiplexing scheme by the first and the second wireless terminals. The third frame contains first channel information estimated based on the second frame. The fourth frame contains second channel information estimated based on the second frame. The first frame contains at least either information to specify a preamble of the third frame and a preamble of the fourth frame or information to specify a subcarrier used for transmission of the third frame and a subcarrier used for transmission of the fourth frame.