Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit a beacon signal including first information to specify a first wireless communication device to be reassigned a slot and a start timing to allow use of a reassigned slot, and transmit, after transmission of the first information, a first signal including second information to specify the reassigned slot, the first signal being a signal different from the beacon signal and a receiver configured to receive a signal.

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: A wireless communication apparatus includes a transmitter that transmits a first frame and a second frame with multiplexing and a receiver that receives a third frame sent in response to the first frame and a forth frame sent in response to the second frame, wherein a first receipt completion timing at which the third frame is fully received by the receiver and a second receipt completion timing at which the forth frame is fully received by the receiver are synchronized by controlling at least one of first content of the first frame, a first transmission method by which the first frame is sent, second content of the second frame and a second transmission method by which the second frame is sent.

Abstract: According to one embodiment, a wireless communication apparatus is provided with first and second determination units. The first unit determines based on a first carrier sense threshold whether busy state or not and specifies a first time when busy state is determined with the first threshold, and determines based on a second carrier sense threshold smaller than the first threshold whether busy state or not and specifies a second time when busy state is determined. The second unit determines, if at least busy state is determined based on the second threshold and the second time precedes a reference time equal to or earlier than the first time, to perform processing for avoiding interference.

Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit first information specifying at least one communication resource requested to be allocated; and a receiver configured to receive second information specifying at least one communication resource allocated depending on the first information. The transmitter is configured to transmit a signal via the allocated communication resource and the receiver is configured to receive a signal via the allocated communication resource.

Abstract: According to one embodiment, a wireless communication device includes a receiver configured to receive from each of a plurality of other wireless communication devices first information specifying at least one communication resource requested to be allocated; and a transmitter configured to transmit second information specifying at least one communication resource allocated to each of the other wireless communication devices based on the first information. The transmitter is configured to transmit signals via the communication resources specified in the second information and the receiver is configured to receive signals via the communication resources specified in the second information.

Abstract: According to one embodiment, a wireless communication device includes a transmitter configured to transmit a first frame including first information, the first information including information to designate a plurality of wireless communication devices and information concerning communication resources which have been assigned to the plurality of wireless communication devices for multiplexing communication and a receiver configured to receive a signal.

Abstract: According to one embodiment, integrated circuitry installed in a wireless communication device, includes a transmitter configured to transmit a first information showing a number of channel sets each of which is configured by one channel or two or more consecutive channels in a plurality of channels in a predetermined frequency band and among each of which a signal is separately able to be transmitted and received; and a receiver configured to receive a signal in the predetermined frequency band.

Abstract: A wireless communication device according to one embodiment includes a receiver, processing circuitry and a transmitter. The receiver receives a first signal obtained by a first sensor. The processing circuitry compares first sensing information included in the first signal with second sensing information obtained by a second sensor so as to determine whether or not the first sensing information and the second sensing information are obtained from a same target object. In addition, the transmitter transmits a wireless connection signal, when it is determined that the first sensing information and the second sensing information are obtained from the same target object. The wireless connection signal is a signal to connect one of an own device and an other communication device which has transmitted the first signal to a wireless network formed by the other of the own device and the other communication device.

Abstract: According to one embodiment, A wireless communication device, includes: a receiver configured to receive, from a plurality of other wireless communication devices, a first information showing a number of channel sets each of which is configured by one channel or two or more consecutive channels in a plurality of channels in a predetermined frequency band and among each of which a signal is able to be separately transmitted and received; and control circuitry to perform assignment of the channel from the plurality of channels according to the first information for the plurality of other wireless communication devices.

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 device includes a receiver configured to receive a first beacon signal via a first channel; and control circuitry. The control circuitry is configured to: analyze the first beacon signal to obtain channel information for specifying a second channel, change an operation channel of the receiver from the first channel to the second channel, and change, in a case of not receiving a second beacon signal via the second channel during a predetermined period of time, the operation channel of the receiver from the second channel to the first channel. The receiver is further configured to receive a third beacon signal via the first channel after the operation channel is changed from the second channel to the first channel.

Abstract: A wireless device performs communication of a first access period and a second access period, the first access period including a plurality of slots in which communication is performed on a slot basis by allocating the slots and the second access period including a plurality of slots in which communication is performed in a contention-based access scheme on a slot basis, and includes a transmitter, a receiver and an control circuitry. The control circuitry performs, when one slot in the second access period is determined, carrier-sensing during a period of time depending on a type of the frame, and controls to transmit via the transmitter the frame at a timing defined depending on the type of the frame after the period of time.

Abstract: A communication processing device employing a negative-acknowledgement-based scheme to achieve at least either increased access efficiency or low power consumption. The communication processing device is mounted in a wireless communication device, and includes a communicator and a selector. The communicator receives a notification frame periodically transmitted. The selector performs selection of one scheme from among a positive-acknowledgement-based scheme according to which a response is sent in response to successful reception, and a negative-acknowledgement-based scheme according to which a response is sent in response to unsuccessful reception, the selection being performed in accordance with whether or not the communicator has received the notification frame. The communicator transmits a transmission frame including information requesting to send the response in accordance with the scheme selected by the selector.

Abstract: According to one embodiment, a wireless communication apparatus includes a transceiver, an estimator and a controller. The transceiver transmits and receives a frame in a frequency band which is used by a first system executing communication in a first communication range determined by a first transmission power and a first antenna gain. The estimator determines whether an amount of interference in the frequency band from a second system is no less than a threshold, the second system executing communication in a second communication range which is larger than the first communication range and which is determined by a second transmission power and a second antenna gain. The controller increases a transmission power when the amount of interference is no less than the threshold.

Abstract: According to one embodiment, a communication processing device is provided which is mounted on a wireless communication device that performs communication using a first channel and performs communication by a communication scheme different from that of the first channel using a second channel. The communication processing device includes a control circuitry to determine whether or not transmission data is data that needs to be preferentially transmitted, specify at least one channel from the first channel and the second channel according to a determination result, and perform control so as to transmit the transmission data using the specified channel.

Abstract: According to one embodiment, a communication processing device mounted in a wireless communication device which uses a first channel and a second channel, includes controlling circuitry. The circuitry is configured to control to transmit, through the first channel, a first announcement signal including channel information of the second channel and control to transmit, through the second channel, a second announcement signal when slot allocation of a target communication device in the second channel is determined to be changed, the second announcement signal including a notification of the change in the slot allocation of the target communication device.

Abstract: A wireless communication apparatus includes a transmission and reception processing unit which communicates using a first communication scheme, by using either a first inter frame spaces of a first type or the second inter frame spaces of the first type, wherein the second inter frame spaces is larger than the first inter frame spaces, the second inter frame spaces is determined based on an inter frame space used in a second communication scheme.

Abstract: According to one embodiment, a wireless communication apparatus includes a storage, a selection unit, a processing unit. The storage stores a first set and a second set, including first frame spaces of one or more types and the second set including second frame spaces of the one or more types, each of the second frame spaces that are identical in type to the first frame spaces being not less than the first frame spaces, and a second frame space of any one of the types being longer than a first frame space of the any one of the types. The selection unit selects either the first set or the second set. The processing unit communicates with a first apparatus, by using either the first frame spaces or the second frame spaces.

Abstract: One embodiment provides a wireless apparatus including: a reception unit which receives a data signal having a header field and a data field, the header field including a reply request which specifies either an acknowledgement or a negative acknowledgement; a decision unit which decides a reception result indicating whether the header field and the data field have been received successfully or unsuccessfully; and a transmission unit which transmits the acknowledgement or the negative acknowledgement in accordance with the reply request and the reception result of the data field when the header field has been received successfully, and transmits the negative acknowledgement when the header field has been received unsuccessfully.