Abstract: There is provided a wireless device configured to perform both multi-user spatial multiplex communication and single user communication with a communication device. The wireless device is configured to set a first waiting time for the single user communication, and count the first waiting time in a period in which a second waiting time for the multi-user spatial multiplex communication is counted. The wireless device then transmits data through the single user communication after the first waiting time expires.

Abstract: The present technology relates to a wireless communication apparatus and a wireless communication method that make it possible to read necessary information even in a case where a physical header at a top portion of a signal transmitted from a base station of another BSS fails to be received and the signal is received from the middle. The wireless communication apparatus includes a communication section configured to generate and transmit an OFDM signal in which second information is superimposed in a frequency axis direction of the OFDM signal which includes first information destined for one or more subordinate client devices. The present technology can be applied to a wireless communication apparatus and so forth that perform wireless communication, for example, standardized by IEEE 802.11.

Abstract: The present technology relates to a communication device and a communication method that enable the occupancy condition of a transmission channel to be recognized with ease. There is provided a communication device including a controller configured to perform controlling of transmitting a data signal to another communication device via a transmission channel, in which the controller performs controlling of selecting a training pattern corresponding to an occupancy time of the transmission channel among a plurality of types of training patterns and transmitting a signal with the selected training pattern attached to the another communication device via the transmission channel. The present technology can be applied to, for example, a wireless LAN system.

Abstract: The present technology aims to achieve flexible transition of a communication apparatus from a centralized communication mode to another mode. A communication apparatus includes: a transition information generation unit that generates a plurality of pieces of different transition information related to transition from a first mode in which centralized communication is performed by an access point to a second mode in which no centralized communication by an access point is performed; and a frame generation unit that generates a frame containing the transition information.

Abstract: To provide a mechanism capable of improving communication efficiency even in communication before allocation of an AID. A communication device including: a communication unit configured to transmit a first frame including a second association identifier decided by a communication device to which a first association identifier is allocated and receive a second frame including information related to the second association identifier.

Abstract: A communication apparatus is provided, and the communication apparatus includes a control unit that performs control to: generate channel information relating to transmittable frequency channels of data, and bandwidth information relating to a bandwidth of a frequency to be used to transmit the data; transmit a request signal to another communication apparatus, by using a frequency channel that has been selected from the transmittable frequency channels, the request signal including the channel information and the bandwidth information that have been generated; and transmit the data to the other communication apparatus, by using frequency channels that have been selected as receivable frequency channels by the other communication apparatus. The present technology can be applied, for example, to a wireless LAN system.

Abstract: The present technology relates to a wireless communication terminal and a wireless communication method that make it possible to execute coordinated transmission via a desired access point. The wireless communication terminal starts setting up the coordinated transmission in order to cause a plurality of wireless communication apparatuses to execute the coordinated transmission. The present technology is applicable to a wireless communication system.

Abstract: The present technology relates to a communication apparatus and a communication system achieving efficient utilization of a transfer path of a wireless LAN. A communication apparatus according to an aspect of the present technology transmits a first trigger frame containing a transmission parameter used for data transmission to a plurality of apparatuses belonging to a wireless LAN, and receives data multiplexed and transmitted from the plurality of apparatuses having received the first trigger frame in accordance with the transmission parameter. In addition, the communication apparatus receives a second trigger frame transmitted from a predetermined apparatus of the plurality of apparatuses, and transmits multiplexed data to the predetermined apparatus in accordance with a transmission parameter contained in the received second trigger frame. The present technology is applicable to a communication apparatus in a wireless LAN.

Abstract: A communication device that performs processing for estimating out-of-band leakage power is provided. The communication device includes a communication unit that transmits and receives wireless signals in a first frequency band and a second frequency band, and a control unit that controls a communication operation in the communication unit, transmits a reference signal in the first frequency band and the second frequency band, and receives a communication result from a transmission destination of the reference signal. The control unit determines the transmission destination of the reference signal on the basis of results of exchange of capability information with the first terminal and the second terminal, and performs control such that a notification signal for notifying of transmission of the reference signal in advance is transmitted in the first frequency band and the second frequency band.

Abstract: [Object] To enable the access point device to grasp interference information without using a management device. [Solution] Provided is a station device including: a reception unit configured to receive a signal transmitted from another network other than a BSS to which the own device belongs; an acquisition unit configured to acquire parameter information regarding the signal; and a reporting unit configured to report the parameter information to an access point device that performs interference control in the BSS.

Abstract: The present technology relates to a wireless communication device and a method that enable reliable transmission of data even in communication using a plurality of bands. The wireless communication device collectively manages a sequence number of data transmitted using each band in communication using a plurality of bands and controls of transmission of information on a notification method of a reception result of the data and information on a management method. The present technology can be applied to wireless communication systems.

Abstract: A communication device includes transceiver circuitry that transmits a first frame including a request parameter and at least one piece of data for a block acknowledge (ACK); and receives a second frame including a confirmation response to a response parameter and the block ACK. The transceiver circuitry receives a request for the at least one piece of data for the block ACK, transmits the first frame on a basis of occurrence of the request for transmitting the at least one piece of data of the block ACK, and executes transmission of a data frame based on the response parameter included in the received second frame.

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 communication apparatus includes a transition information generation unit that generates a plurality of pieces of different transition information related to transition from a first mode in which centralized communication is performed by an access point to a second mode in which no centralized communication by an access point is performed and a frame generation unit that generates a frame containing the transition information.

Abstract: An information processing apparatus including a control unit that performs control for adding, to request information for requesting a different apparatus for a confirmation response to a plurality of data transmitted to the different apparatus, notification information. The notification information is information regarding at least sequence numbers other than a start sequence number from among sequence numbers corresponding to the plurality of data. Further, the control unit transmits the request information, to which the notification information is added, to the different apparatus.

Abstract: The present technology relates to a wireless communication apparatus and method by which communication can be performed with a higher efficiency. The wireless communication apparatus includes a preamble generation section that generates a preamble that is to be deployed at the top of a transmission frame and includes header information, a midamble generation section that generates a midamble that is to be deployed in the middle of the transmission frame and includes information of at least part of the header information, and a wireless transmission processing section that transmits the transmission frame including the preamble and the midamble. The present technology can be applied to a wireless communication apparatus.

Abstract: The present technique relates to a communication apparatus and a communication system allowing distribution of loads on a communication apparatus that manages Internet connection.

Abstract: The present technology relates to a communication apparatus and an information processing method that make it possible to appropriately reduce inter-link interference. The communication apparatus according to the present technology acquires, in a case of simultaneously performing transmission and reception of a data signal with another communication apparatus using a plurality of Links, first interference information concerning interference between Links occurring in the other communication apparatus from the other communication apparatus, and decides a transmission parameter to be used by the other communication apparatus for transmission of a data signal on a basis of the first interference information and second interference information concerning interference between the Links occurring in the communication apparatus. The present technology is applicable to a wireless communication system.

Abstract: The present technology relates to a communication device and a communication method capable for enabling more reliable acknowledgment of data receipt.

Abstract: The present technology relates to a wireless communication device and method, and a program capable of performing communication with higher efficiency. A wireless communication device includes a first transmission unit configured to transmit signals using frequency channels of a freely available non-limited frequency band, a second transmission unit configured to transmit signals using frequency channels of a limited frequency band that is limited in use, and a control unit configured to control operations of the first transmission unit and the second transmission unit such that wireless communication is performed within a predetermined operation bandwidth by using frequency channels of the non-limited frequency band and frequency channels of the limited frequency band in combination. The present technology can be applied to wireless LAN systems.