Abstract: A data unit that requires a receipt acknowledgement response in a plurality of transmitted data units is suitably selected. A wireless communication apparatus includes a control unit. The control unit controls transmission of receipt acknowledgement requests for a plurality of transmitted data units. Further, the receipt acknowledgement request whose transmission is controlled by the control unit is a receipt acknowledgement request including information, the information identifying a data unit that requires a receipt acknowledgement response in the plurality of transmitted data units and specifying the identified data unit.

Abstract: [Object] To provide a mechanism capable of improving communication efficiency even in communication before allocation of an AID. [Solution] 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: An information processing device includes a control unit. The control unit performs control to restrict retransmission of data or transmission of a request for an acknowledgment of receipt of the retransmission data, in accordance with the congestion status of a wireless transmission traffic. The control unit also performs control to transfer acquired data to an upper layer in case of having successfully acquired the data up to a predetermined sequence number in multicast data transmitted from another device that restricts retransmission of data in accordance with the congestion status of a wireless transmission traffic. The device can prevent decreases in the total throughput in a network.

Abstract: There is provided an information processing apparatus, information processing method, and program, capable of estimating the reliability of an evaluator to improve the accuracy of an evaluation value. The information processing apparatus includes a control unit configured to perform processing of acquiring evaluation information for an evaluation target person by an evaluator and sensing data of the evaluation target person, and processing of estimating reliability of evaluation by the evaluator on the basis of the evaluation information for the evaluation target person by the evaluator and the sensing data of the evaluation target person.

Abstract: The present technology relates to information processing apparatus and method, and a program that make a stress level controllable depending on circumstances. A stress level measuring unit measures a stress level of a user on the basis of a result of detection by various types of sensors included in an input unit. A stress factor specifying unit specifies a factor causing an increase or decrease in the stress level on the basis of an action of the user in a period in which the stress level is increased or decreased. The present technology is applicable to a stress control system, for example.

Abstract: To provide an excellent communication apparatus and communication method which operates with a basic service set belonging to an extended service set. A wireless terminal transmits a frame in which BSS-color and ESS-color which respectively identify a BSS and an ESS to which the own wireless terminal belongs are described. Further, part of a region for storing ESS-color is used as a region for storing BSS-color to secure the number of pieces of BSS-color sufficient to avoid overlapping. An STA stores statistical information regarding a received frame in association with BSS-color and ESS-color and performs cooperative operation within the ESS or between the ESSs.

Abstract: Provided is a communication device configured to operate in a plurality of communication modes and maintain information related to retransmission of data in accordance with switching of the communication modes.

Abstract: A data unit that requires a receipt acknowledgement response in a plurality of transmitted data units is suitably selected. A wireless communication apparatus includes a control unit. The control unit controls transmission of receipt acknowledgement requests for a plurality of transmitted data units. Further, the receipt acknowledgement request whose transmission is controlled by the control unit is a receipt acknowledgement request including information, the information identifying a data unit that requires a receipt acknowledgement response in the plurality of transmitted data units and specifying the identified data unit.

Abstract: There is provided an information processing apparatus, information processing method, and program, capable of accurately performing the future prediction of a user-specific physical condition and giving advice accordingly. The information processing apparatus includes a prediction unit configured to predict a future physical condition of a user on the basis of a sensor information history including information relating to the user acquired from a sensor around the user, and a generation unit configured to generate advice for bringing the physical condition closer to an ideal physical body specified by the user on the basis of the predicted physical condition, and lifestyle information and preference information of the user obtained from the sensor information history.

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.

Abstract: [Object] To provide a technology capable of performing processing on desired data in the reception-side communication device, even in the case in which a sequence number space is shared among a plurality of pieces of data transmitted from the transmission-side communication device. [Solution] Provided is a transmission control device including: a communication control unit that controls transmission of a plurality of pieces of data including respective sequence numbers; and a data generation unit that generates, as information indicating one or a plurality of pieces of data to be processed in a reception device among the plurality of pieces of data, number information indicating the sequence numbers included in the one or plurality of pieces of data to be processed. The communication control unit controls transmission of the number information to the reception device.

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: A communication device, including: a processing unit configured to generate a second frame used for releasing a stop of transmission of a frame caused by a first frame, the second frame including first destination information specifying a destination stored in the first frame, the first frame being used for stopping transmission of frames of communication devices other than the destination and serving as a response to a communication request; and a unit that transmits the second frame. A communication device, that receives a second frame used for releasing a stop of transmission of a frame caused by a first frame, the second frame including first destination information specifying a destination stored in the first frame, the first frame being used for stopping transmission of frames of communication devices other than the destination and serving as a response to a communication request. A controller controls transmission of a frame.

Abstract: Wireless transmission paths are utilized efficiently. An information processing device includes a control section. If data destined for the own device is received from another device and if there exists undelivered data in the data, the control section performs control to transmit a retransmission request for the data to the other device. If there exists no undelivered data in the data destined for the own device and received from the other device, the control section performs control not to transmit a confirmation of reception.

Abstract: Provided are a communication apparatus and a communication method for transmitting and receiving wireless packets. A communication apparatus includes: a communication unit configured to transmit and receive a packet in a predetermined occupied band; and a partial band processing unit configured to provide a control signal area including predetermined control information in a part of the occupied band of the packet transmitted from the communication unit. The control information includes a plurality of synchronization signals at defined time intervals, and includes information for a third station that is not a destination of the packet, such as information regarding a NAV, a network identifier for identifying a network to which the communication apparatus belongs, transmission power information of the packet, allowable interference amount information, and remaining time information of the packet.

Abstract: [Object] To provide a communication apparatus and a communication method which are capable of suppressing a decrease in communication efficiency in UL communication of a random access scheme. [Solution] Provided is a communication apparatus, including a communication unit configured to transmit a trigger frame including sub area information in which a sub area is specified from a resource area including wireless communication resources selectable as uplink resources and receive a response frame to the trigger frame. Provided is a communication apparatus, including a communication unit configured to receive a trigger frame including sub area information in which a sub area is specified from a resource area including wireless communication resources selectable as uplink resources and transmit a response frame to the trigger frame.

Abstract: The present technology relates to a communication apparatus and a method that allow for synthesis of information using an original signal and a retransmission signal for retransmitting information of the original signal whose demodulation has failed, in wireless communication with independent physical layer and MAC layer. Information is transmitted regarding a configuration of a retransmission signal for retransmitting information of an original signal whose demodulation has failed to a sender of the retransmission signal, and the retransmission signal transmitted from the sender is received on the basis of the information regarding the configuration of the retransmission signal transmitted. The present disclosure is applicable, for example, to a transmission/reception apparatus, a communication apparatus, an information processing apparatus, electronic equipment, a computer, a program, a storage medium, and a system, and so on.

Abstract: A communication device includes a communication unit configured to transmit a physical layer (PHY) header including two pieces of information for identifying direct link communication. A communication device includes a communication unit configured to receive a PHY header including two pieces of information for identifying direct link communication and receive a portion subsequent to the PHY header on a basis of the two pieces of information. A communication device includes a communication unit configured to transmit a PHY header including two pieces of information for identifying mesh network communication. A communication device includes a communication unit configured to receive a PHY header including two pieces of information for identifying mesh network communication and receive a portion subsequent to the PHY header on a basis of the two pieces of information.

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: [Object] To make it possible to reduce wasteful retransmission processing and improve use efficiency of communication channels with regard to wireless LAN systems. [Solving Means] There is provided a wireless LAN communication apparatus including: a transmitter that transmits a data frame storing a plurality of fixed-length pieces of coded data for which it is possible to determine whether or not decoding is successfully performed; and a controller that controls retransmission processing in units of the pieces of coded data.