Abstract: The present technology relates to a communication apparatus, a communication terminal, and a communication method capable of facilitating management of a secret key for performing coordinated transmission. The communication apparatus shares a first secret key for coordinated transmission and groupcast, which is used when the coordinated transmission is performed on a communication terminal together with one or a plurality of other communication apparatuses, with the other communication apparatuses. The present technology can be applied to a wireless communication system.

Abstract: A wireless communication apparatus: performs communication using a first link; performs communication using a second link; and performs allocation control of allocating transmission data to first data and second data, transmission control of controlling transmission of the first data using the first link and transmission of the second data using the second link, and reception control of controlling reception using the first link of a first response including reception success/failure information indicating a success/failure of reception with respect to the first data and at least a part of the second data and reception using the second link of a second response including the reception success/failure information indicating a success/failure of reception with respect to the second data and at least a part of the first data. The present technique can be applied to wireless communication systems.

Abstract: The present technology relates to a communication device and a communication method that allow an improvement in system throughput. Provided is a communication device including a control unit configured to perform control to exchange, with a first another communication device by means of wireless communication, first information that is used when a plurality of communication devices executes coordinated transmission to share, with the first another communication device, threshold information regarding a sounding time on the basis of the first information. The present technology can be applied to communication devices that constitute a wireless LAN system, for example.

Abstract: A communication device that enables more suitable retransmission of undelivered data in communication using a plurality of links. A transmission side communication device controls parallel transmission of data using the plurality of links in a wireless network, and sets retransmission of undelivered data using available links when the undelivered data is generated on a predetermined one of links. A reception side communication device controls parallel reception of data using the plurality of links in the wireless network, sets reception acknowledgment information including information specifying the reception situation of the data in the other link when returning reception acknowledgment information on one of the links, and controls the return of the reception acknowledgment information to set up links to receive retransmission data.

Abstract: A wireless communication device and method that performs uplink transmission in coordination with another wireless communication device, and acquires transmission method information indicating a transmission method of a downlink control signal which is a control signal necessary for the uplink transmission or information necessary for determining the transmission method from the another wireless communication device.

Abstract: There is provided a communication apparatus that operates as an access point (AP) that transmits packets to a subordinate station (STA) and an STA connected to another AP includes a storage unit including a transmission buffer that stores packets for each STA, and a control unit that controls processing for sharing information on a sequence number of a transmission buffer for each STA between the APs. The control unit collects the information on the sequence number of the transmission buffer of each STA of each AP, and controls processing for transmitting packets to each STA on the basis of a difference in information related to the sequence number of the transmission buffer of each STA between the APs.

Abstract: The present technology relates to a communication device and a communication method capable of curbing deterioration of frequency utilization efficiency. A communication device including a control unit configured to set a first frequency channel group used at the time of simultaneously transmitting data in cooperation with another communication device constituting another network, to set a second frequency channel group used for communication in a host network, and to dynamically control bandwidths of frequency bands in the first frequency channel group and the second frequency channel group is provided. The present technology can be applied to, for example, a wireless LAN system.

Abstract: A weight (weighting factor, and Matrix of Steering Vectors) for performing joint transmission together with another wireless base station is efficiently generated. The wireless base station performs the joint transmission with the another wireless base station. The wireless base station includes a wireless control unit and a communication unit. The wireless control unit generates information regarding channel state information between a terminal which is a destination at the time of performing the joint transmission and a plurality of wireless base stations which is a transmission source of the joint transmission. The communication unit transmits the information regarding the generated channel state information to the another wireless base station that performs the joint transmission.

Abstract: The present technology relates to a wireless communication device and method, and a wireless communication terminal and method that enable a plurality of access points to efficiently collect receipt acknowledgments of data from respective communication terminals. The wireless communication device coordinately transmits, with one or more first other wireless communication devices, data addressed to the wireless communication terminals each including information indicating a transmission timing of a receipt acknowledgment of each of the plurality of wireless communication terminals. Furthermore, the wireless communication device receives the receipt acknowledgment from each of the wireless communication terminals after transmitting the data. The present technology can be applied to a wireless communication system.

Abstract: The present technology improves an effective rate in a case where joint transmission is performed once in multi-APs that perform joint transmission, and then a weight is changed and joint transmission is performed again. A wireless base station includes a wireless control unit and a communication unit. The wireless control unit generates weight update information for updating a first weight to a second weight, the first weight being a weight used in joint transmission previously performed with another wireless base station, the second weight being a weight used for performing the joint transmission after the joint transmission using the first weight. The communication unit notifies the another wireless base station of the weight update information.

Abstract: The present technology relates to a communication control device, a communication control method, and a program that enable appropriate communication of a backscatter signal. The communication control device receives a role request signal requesting execution of a role related to communication of a backscatter signal by a backscatter signal generation device, and determines an operation on the basis of the role request signal. The present technology can be applied to a wireless communication system.

Abstract: A communication apparatus, and corresponding method, that transmits and receives a radio signal using a first communication band and a second communication band, and a controller that controls an operation of communication performed by the communication section, where the controller performs control such that a signal that includes information regarding a clear channel of the second communication band is transmitted using a channel of the first communication band. Further, the controller performs control such that data is transmitted to a transmission destination of the signal using one of a plurality of the clear channels of the second communication band, the plurality of the clear channels of the second communication band being included in the signal.

Abstract: A wireless communication device and method that performs uplink transmission in coordination with another wireless communication device, and acquires transmission method information indicating a transmission method of a downlink control signal which is a control signal necessary for the uplink transmission or information necessary for determining the transmission method from the another wireless communication device.

Abstract: The present technology relates to a communication device, a communication terminal, and a communication method that enable efficient sharing of data for cooperative transmission. A communication device divides shared data to be shared with another communication device for each information type in the shared data in order to perform cooperative transmission to a communication terminal, and generates a data unit less than or equal to a maximum transmission unit in a transmission path. The present technology can be applied to a wireless communication system.

Abstract: The present disclosure relates to a wireless communication terminal and a wireless communication method, and a wireless communication apparatus and a wireless communication method capable of realizing broadband uplink transmission. The wireless communication terminal includes one PHY unit and a plurality of simple PHY units that performs channel scanning of each link, and executes switching processing for switching from the simple PHY unit to the PHY unit during the channel scanning for one link in a case where uplink transmission to a wireless communication apparatus is performed. The present disclosure can be applied to an eMLSR-compatible wireless communication terminal.

Abstract: The present technology relates to a wireless communication device and method, and a wireless communication terminal and method that enable a plurality of access points to efficiently collect receipt acknowledgments of data from respective communication terminals. The wireless communication device coordinately transmits, with one or more first other wireless communication devices, data addressed to the wireless communication terminals each including information indicating a transmission timing of a receipt acknowledgment of each of the plurality of wireless communication terminals. Furthermore, the wireless communication device receives the receipt acknowledgment from each of the wireless communication terminals after transmitting the data. The present technology can be applied to a wireless communication system.

Abstract: A first communication device operating as source node sends a collaborative transmission (CT) link metric query to relay nodes which solicits the relay nodes to feedback measured/estimated values of several collaborative transmission data rate. At least one second communication device operating as relay node thus sends a CT link metric response to the source node. The CT link metric response includes measured/estimated values of several collaborative transmission data rate among relay nodes and sink nodes (non-AP STAs).

Abstract: The present technology relates to a wireless communication device and a method that make it possible to suppress signal collisions and a loss of an opportunity to acquire a transmission right. The wireless communication device transmits and receives signals to and from another wireless communication device, and determines a coordination recommendation channel to be recommended to the other wireless communication device in order to perform coordination communication. The present technology can be applied to wireless communication systems.

Abstract: The present technology relates to a wireless communication control device, method, and program that make it possible to more reliably perform data transmission. The wireless communication control device performs control of receiving first information from a wireless communication device via one of a plurality of links set in advance with the wireless communication device and transmitting use reservation information indicating that a use opportunity for at least one of the plurality of links is to be secured in advance. The present technology can be applied to a wireless communication system.

Abstract: A communication device includes a control unit that performs control to transmit data to a reception-side communication device when coordinated transmission is performed to transmit the data simultaneously from a plurality of transmission-side communication devices to the reception-side communication device, generate a request signal including coordinated transmission information regarding the coordinated transmission and acknowledgement return information for returning an acknowledgement of the coordinately transmitted data simultaneously to the plurality of transmission-side communication devices, transmit the generated request signal to the reception-side communication device, and receive an acknowledgement signal including the acknowledgement, where the acknowledgement signal is transmitted from the reception-side communication device that has received the request signal.