Abstract: A communication apparatus includes a PHY frame generating circuit that generates a PHY frame including either of a short Sector Sweep frame and a Sector Sweep frame; and an array antenna that selects, based on the PHY frame, any sector from among a plurality of sectors and transmits the PHY frame. In a case where, in the PHY frame including the short Sector Sweep frame, a Direction field of the short Sector Sweep frame indicates Initiator Sector Sweep, the PHY frame generating circuit replaces a Short Sector Sweep Feedback field indicating a number of a selected best short Sector Sweep with a Short Scrambled Basic Service Set ID field indicating an abbreviated address generated from an address of a destination communication apparatus.

Abstract: In a transmission device, a signal processing circuit generates an aggregate physical layer convergence protocol data unit (A-PPDU) by adding a guard interval to each of a first part of a first physical layer convergence protocol data unit (PPDU) transmitted over each of a first through L'th channel of a predetermined channel bandwidth, where L is an integer of 2 or greater, a second part of the first PPDU transmitted over each of an (L+1)'th through P'th channel, which is a variable channel bandwidth that is N times the predetermined channel bandwidth, where N is an integer of 2 or greater and P is an integer of L+1 or greater, and a second PPDU transmitted over the (L+1)'th through P'th channel. A wireless circuit transmits the A-PPDU.

Abstract: In a transmission apparatus, signal carrier signal circuitry that generates two single carrier signals including a legacy preamble signal, a legacy header signal and an extension header signal respectively. OFDM signal circuitry that generates one OFDM signal by performing an IFFT processing on one or more payload signals. Transmission circuitry that transmits the two single carrier signals by allocating to a bonding channel which is formed by bonding two adjacent channels used in a bonding transmission scheme and the one OFDM signal by allocating to the bonding channel which is frequency-shifted.

Abstract: A communication apparatus includes a PHY frame generating circuit that generates a PHY frame including either of a short Sector Sweep frame and a Sector Sweep frame; and an array antenna that selects, based on the PHY frame, any sector from among a plurality of sectors and transmits the PHY frame. In a case where, in the PHY frame including the short Sector Sweep frame, a Direction field of the short Sector Sweep frame indicates Initiator Sector Sweep, the PHY frame generating circuit replaces a Short Sector Sweep Feedback field indicating a number of a selected best short Sector Sweep with a Short Scrambled Basic Service Set ID field indicating an abbreviated address generated from an address of a destination communication apparatus.

Abstract: A base station apparatus that performs a wireless communication with a plurality of wireless terminal apparatuses according to IEEE802.11, including a frame generator that generates one or more first frames, each first frame including information indicating that a TXOP period assigned for communication with one of the plurality of wireless terminal apparatuses has expired and an additionally added Beacon element including information associated with the base station apparatus, and a transmitter that transmits the generated one or more first frames to the plurality of wireless terminal apparatuses.

Abstract: The present disclosure provides a wireless communication device provided with: a transmission signal generation unit that generates an A-PPDU that has a legacy preamble, a legacy header, data fields allocated to each of a plurality of different STAs, a plurality of non-legacy headers in which various types of information relating to the plurality of data fields are described, and a plurality of non-legacy preambles; and a transmission unit that transmits the A-PPDU in a wireless manner.

Abstract: In a transmission apparatus, signal carrier signal circuitry that generates two single carrier signals including a legacy preamble signal, a legacy header signal and an extension header signal respectively. OFDM signal circuitry that generates one OFDM signal by performing an IFFT processing on one or more payload signals. Transmission circuitry that transmits the two single carrier signals by allocating to a bonding channel which is formed by bonding two adjacent channels used in a bonding transmission scheme and the one OFDM signal by allocating to the bonding channel which is frequency-shifted.

Abstract: When an STA receives first to fifth SSW frames (first training frames) transmitted from an AP, the STA measures reception quality thereof, and transmits a reception quality measurement result to the AP by incorporating the reception quality measurement result in an SSW-ACK frame (first feedback frame). In response, the AP selects a beam pattern satisfying a specific selection criterion based on the reception quality measurement result and employs the selected beam pattern as the transmission beam pattern for use in transmission to the STA.

Abstract: A wireless communication device for a road side zone includes a wireless communication circuit that forms beams in plural different directions in a time division scheme in an area which includes plural routes. The wireless communication device for a road side zone includes a recording circuit that records time transition in the direction of the beam used by the wireless communication circuit, which forms the beams in the plural different directions in a time division scheme, for wireless communication with a second wireless communication device provided to a mobile apparatus which moves on any of the plural routes.

Abstract: A wireless communication device includes: 1st to Mth communication processors, respectively corresponding to 1st to Mth sectors (where M is an integer equal to or greater than 2), that communicate with a wireless terminal by using a beam in any of N directions (where N is an integer equal to or greater than 2) in one of the 1st to Mth sectors; and a handover controller that determines whether or not to perform handover of the 1st communication processor, according to a position in a 1st sector of the beam used by the 1st communication processor, a communication quality between the 1st communication processor and the wireless terminal, and a value related to traffic on the 2nd communication processor in a 2nd sector adjacent to the 1st sector.

Abstract: There is provided a communication method for a coordinator communication device, including generating a first scheduling element to be used by a first communication device and a second scheduling element to be used by a second communication device; and transmitting the first and second scheduling elements to the first and second communication devices. The second scheduling element includes a second allocation indicating a time-frequency resource allocated to the second communication device. The first scheduling element includes a first allocation indicating a time-frequency resource allocated to the first communication device and optionally includes a first virtual allocation that is a duplicate of the second allocation.

Abstract: A wireless communication device performs first carrier sensing, regarding part of multiple channels that are candidates for receiving a first signal before reception of the first signal. After having received the first signal, the wireless communication device performs second carrier sensing regarding one or more channels, out of the plurality of channels, that are one or more channels corresponding to the channel information included in the first signal, and where at least the first carrier sensing has not been executed, before reception of data signals by transmission of a second signal.

Abstract: A method for use of a wireless terminal device includes transmitting a Probe request frame by using a quasi-omni antenna pattern in a first channel if beam-forming training with a wireless base station device is not completed, selecting the wireless base station device as a connection destination if a Probe response frame corresponding to the Probe request frame is received from the wireless base station device, and performing the beam-forming training with the wireless base station device in a second channel if a time period for receiving the Probe response frame from the wireless base station device has passed.

Abstract: A wireless communication apparatus transmits a beacon frame during a beacon transmission interval (BTI), receives a transmission sector sweep (SSW) frame from another wireless communication apparatus, during a beamforming training (BFT) period following the BTI, extracts, in a case where information relating to a discovery request is included in the transmission SSW frame, information relating to a first transmission sector that is selected by the other wireless communication apparatus from among the transmission SSW frames, selects a second transmission sector from transmission sectors used by the other wireless communication apparatus, the transmission sectors being included in the transmission SSW frames, transmits a feedback frame including information regarding the selected second transmission sector, using the first transmission sector during the BFT period, and transmits a probe response frame including information regarding the selected second transmission sector, using the first transmission sector,

Abstract: There is provided a communication method for a coordinator communication device, including generating a first scheduling element to be used by a first communication device and a second scheduling element to be used by a second communication device; and transmitting the first and second scheduling elements to the first and second communication devices. The second scheduling element includes a second allocation indicating a time-frequency resource allocated to the second communication device. The first scheduling element includes a first allocation indicating a time-frequency resource allocated to the first communication device and optionally includes a first virtual allocation that is a duplicate of the second allocation.

Abstract: A base station device includes a frame generator circuitry that generates a first training frame used for receive beam training among frames used for beamforming training, a beam controller circuitry that sets a beam used to transmit the first training frame to an omnidirectional mode, a transmitter circuitry that transmits the first training frame at the lowest MCS rate of IEEE 802.11, a receiver circuitry that receives first and second response frames from a wireless terminal device that has received the first training frame after a determined period since transmission of the first training frame, and a frame determiner circuitry that determines whether the first response frame is a response to the receive beam training. In a case where the first response frame is a response to the receive beam training, the beam controller circuitry sets a beam received by the receiver circuitry to a directional beam, and the receiver circuitry receives the second response frame with a directional beam.

Abstract: A non-personal basic service point/access point (PCP/AP) communication device includes a reception circuit that receives a DMG Beacon frame, a judging circuit that judges whether or not to transmit a frame used for beamforming training (BFT), using information relating to reception antenna gain of a PCP/AP communication device included in a DMG Beacon frame and information relating to reception power of a DMG Beacon frame, and a transmission circuit that transmits the frame used for BFT in a case of the judging circuit having judged to transmit the frame used for BFT.

Abstract: A communication apparatus includes: a PPDU generation circuit that sets a time equal to or greater than a total of a non-legacy STF, a non-legacy CEF, multiple non-legacy header fields, and multiple data fields as a nominal data field length, computes a nominal data octet size based on the nominal data field length, stores the nominal data octet size in a legacy header, and sets an Additional PPDU field in the legacy header to 0; a signal processing circuit that forms an A-PPDU in the nominal data field length or less; and a transmission circuit that transmits the A-PPDU.

Abstract: In a transmission device, a signal processing circuit generates an aggregate physical layer convergence protocol data unit (A-PPDU) by adding a guard interval to each of a first part of a first physical layer convergence protocol data unit (PPDU) transmitted over each of a first through L'th channel of a predetermined channel bandwidth, where L is an integer of 2 or greater, a second part of the first PPDU transmitted over each of an (L+1)'th through P'th channel, which is a variable channel bandwidth that is N times the predetermined channel bandwidth, where N is an integer of 2 or greater and P is an integer of L+1 or greater, and a second PPDU transmitted over the (L+1)'th through P'th channel. A wireless circuit transmits the A-PPDU.

Abstract: A communication apparatus includes a PHY frame generating circuit that generates a PHY frame including either of a short Sector Sweep frame and a Sector Sweep frame; and an array antenna that selects, based on the PHY frame, any sector from among a plurality of sectors and transmits the PHY frame. In a case where, in the PHY frame including the short Sector Sweep frame, a Direction field of the short Sector Sweep frame indicates Initiator Sector Sweep, the PHY frame generating circuit replaces a Short Sector Sweep Feedback field indicating a number of a selected best short Sector Sweep with a Short Scrambled Basic Service Set ID field indicating an abbreviated address generated from an address of a destination communication apparatus.