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 header encoding unit performs bit scramble and LDPC encoding on the PHY control data to generate L-Header and EDMG-Header data. A modulation unit encodes the L-Header and the E-Header output from the header encoding unit. In addition, the modulation unit duplicates the data of the L-Header and the E-Header in accordance with the bandwidth of the channel notified by an RF control unit and arranges the data on a plurality of channels. The modulation unit further modulates one piece of the payload data divided by a payload data dividing unit.

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 wireless communication apparatus comprising: a frame configuration circuit that generates a transmission frame including DMG beacons, wherein sector ID fields in SSW fields included in the respective DMG beacons indicate one or more transmit sectors used for directional transmissions of the respective DMG beacons, and a field different from the sector ID field included in each DMG beacon indicates whether or not there is quasi-omni transmission; and a transmission wireless circuit that performs, by using the transmit sector indicated by the sector ID field, directional transmission on a first DMG beacon that is included in the DMG beacons and in which the field different from the sector ID field indicates non-quasi-omni transmission and performs quasi-omni transmission on a second DMG beacon that is included in the DMG beacons and in which the different field indicates quasi-omni transmission, in a BTI.

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 transmitting device includes: a transmission signal generation circuit that generates a transmission signal using a frame format including a legacy short training field (STF), a legacy channel estimation field (CEF), a legacy header field, an enhanced directional multi-gigabit (EDMG) header field, an EDMG-STF, an EDMG-CEF, and a data field; and a transmission circuit that transmits the generated transmission signal using one or more channels, wherein the legacy header field includes a data length field expressed by multiple bits, and the data length field indicates, to a legacy terminal, information related to a data length using all of the multiple bits, and indicates, to an EDMG terminal, information related to a data length using a subset of the multiple bits, and uses the remaining bit or bits to indicate information related to the one or more channels in which the transmission signal is transmitted.

Abstract: A wireless communication device is provided with: 1st to Mth communication processing circuitry, corresponding to 1st to Mth sectors (where M?2), which in operation, each communicate with a wireless terminal by using a beam in any of N directions (where N?2); and handover control circuitry, which in operation, instructs the 2nd communication processing circuitry corresponding to the 2nd sector to change a beam used for beacon transmission to a beam closest to a boundary between the 1st sector and an adjacent the 2nd sector, and switch a communication partner of the wireless terminal from the 1st communication processing circuitry to the 2nd communication processing circuitry.

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: 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: A method for performing spatial sharing between an existing SP and a candidate SP includes transmitting a first measurement request to an STA involved in the candidate SP carrying measurement configuration information for measurement over primary tier 1 channel of a tier 2 channel. The measurement configuration information includes the method that is to be used for the requested measurement, the measurement start time, the measurement duration, the number of time blocks within the measurement duration, the number of concurrent measurements to be performed using plural RX antenna configurations, and the method for reporting results of plural concurrent measurements, wherein the duration of each time block is the same.

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: In a transmission apparatus, signal carrier signal circuity that generates two single carrier signals including a legacy preamble signal, a legacy header signal and an extension header signal respectively. OFDM signal circuity that generates one OFDM signal by performing an IFFT processing on one or more payload signals. Transmission circuity 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 method for performing spatial sharing between an existing SP and a candidate SP includes transmitting a first measurement request to an STA involved in the candidate SP carrying measurement configuration information for measurement over primary tier 1 channel of a tier 2 channel. The measurement configuration information includes the method that is to be used for the requested measurement, the measurement start time, the measurement duration, the number of time blocks within the measurement duration, the number of concurrent measurements to be performed using plural RX antenna configurations, and the method for reporting results of plural concurrent measurements, wherein the duration of each time block is the same.

Abstract: Provided is a communication system achieving favorable beamforming training even in an environment where multiple wireless communication networks adjacently exist. In this communication system, in an RXSS, an STA measures received signal qualities of respective first training frames received from an AP and ranks the received signal qualities. In a TXSS following the RXSS, the STA measures received signal qualities of respective third training frames received from the AP and ranks the received signal qualities. The STA transmits fourth training frames respectively including the measured received signal qualities of the third training frames based on the ranks of the received signal qualities of the first training frames.

Abstract: A virtual base station apparatus (virtual AP) formed by a plurality of base station apparatuses (APs) requests a terminal apparatus (STA) to start beamforming training. The terminal apparatus transmits a plurality of first training frames to the virtual base station apparatus. The virtual base station apparatus receives the plurality of first training frames by using the plurality of base station apparatuses, and transmits a plurality of second training frames including information on a training frame received under the best conditions from a first base station apparatus that has received the training frame received under the best conditions to the terminal apparatus. The terminal apparatus receives the plurality of second training frames, and transmits to the virtual base station apparatus a second frame including information on a frame received under the best conditions among the plurality of second received training frames.

Abstract: A virtual base station apparatus includes: a first base station apparatus and a second base station apparatus. The first base station apparatus includes a first receiver that receives a plurality of first training frames, a first transmitter that transmits a plurality of second training frames to a terminal apparatus, and a calculator that calculates a first reception quality of each of the plurality of first training frames. The terminal apparatus includes a second transmitter that transmits the plurality of first training frames to the plurality of base station apparatuses, and a second receiver that receives the plurality of second training frames. The first receiver receives a second reception quality of each of the plurality of first training frames from the second base station apparatus. The first reception quality is transmitted to the second base station apparatus when the first reception quality is higher than the second reception quality.