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: A wireless communication device includes: a transmission unit that transmits a request frame indicating a request for traffic information; a receiving unit that receives a response frame in which the traffic information is stored; and a control unit that controls transmission of a frame related to permission of transmission directed to a first wireless communication device that is identified on the basis of the traffic information stored in the received response frame and that is permitted to perform multiple access. A wireless communication device includes: a receiving unit that receives a request frame indicating a request for traffic information; a transmission unit that transmits a response frame in which the traffic information is stored in response to the received request frame; and a control unit that controls transmission of a frame related to the traffic information on the basis of a communication parameter related to multiple access.

Abstract: Provided is a communication apparatus and a communication method that avoid mutual interference between networks. The communication apparatus includes a communication section and a control section. The communication section sends and receives wireless frames. The control section controls transmission and reception of frames. The control section controls transmission, to one or more target stations and with a transmission parameter (transmission power) specified for each target station, of a trigger frame that induces transmission of a transmission refrainment frame. The communication apparatus functions as a base station, and the control section selects, as target stations, one or more subordinate terminals to which a downlink signal is to be sent and controls the transmission of the trigger frame ahead of the transmission of the downlink signal.

Abstract: [Object] To provide a communication device and a communication method which are capable of achieving both an improvement in reliability of communication in which a frame is transmitted to a plurality of destinations and effective use of wireless communication resources. [Solution] The communication device includes: a communication unit configured to perform communication of a frame. The communication unit transmits a transmission acknowledgment request frame for a transmission acknowledgment response frame including frequency allocation information specifying a transmission frequency of the transmission acknowledgment response frame, and receives the transmission acknowledgment response frame which has undergone frequency division multiplexing, on the basis of the frequency allocation information.

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: A communications device transmitting/receiving signals to/from a mobile communications network includes one or more network elements providing a wireless access interface for the communications device. The wireless access interface includes plural communications resource elements across a host frequency range of a host carrier, and a first section of the communications resources within a first frequency range for preferable allocation to reduced capability devices forming a first reduced bandwidth carrier and a second section of the communications resources within a second frequency range for preferable allocation to the reduced capability devices forming a second reduced bandwidth carrier. Each of the first and second frequency ranges is within the host frequency range.

Abstract: A communication control apparatus includes: a control unit configured to decide transmission power for multiplex communication in a wireless local area network (WLAN) on the basis of information obtained through reception from another communication apparatus; a processing unit configured to generate a frame including transmission power information indicating the transmission power for the multiplex communication decided by the control unit; and a communication unit configured to transmit the frame generated by the processing unit to the other communication apparatus. The communication control apparatus, communication apparatus, communication control method, communication method, and program can suppress deterioration in reception characteristics of a multiplexed frame in a wireless LAN.

Abstract: The present technology relates to a wireless communication apparatus and method, and a program which enable communication to be performed more efficiently. The wireless communication apparatus includes a preamble generating unit configured to generate a preamble signal including header information, an inter-training generating unit configured to generate an inter-training signal including at least part of information of the header information, and a wireless transmission processing unit configured to transmit transmission data after transmitting the preamble signal in at least one or more frequency channels among a plurality of the frequency channels and transmit a plurality of the inter-training signals by utilizing one or a plurality of the frequency channels among the plurality of the frequency channels during a transmission period of the transmission data. The present technology can be applied to a wireless communication apparatus.

Abstract: A communication apparatus and a communication method for performing wireless data transmission using multiple channels are provided. The communication apparatus operating as a base station includes: a communication section that transmits and receives a wireless signal; and a control section that controls a channel used by a subordinate wireless terminal, the control section designates a first transmission scheme to a first wireless terminal that uses a specific primary channel, and designates a second transmission scheme different from the first transmission scheme to a second wireless terminal that uses a non-primary channel that does not include the primary channel. The second transmission scheme has a lower data rate or higher transmission power than that of the first transmission scheme.

Abstract: A wireless communication device includes: a transmission unit that transmits a request frame indicating a request for traffic information; a receiving unit that receives a response frame in which the traffic information is stored; and a control unit that controls transmission of a frame related to permission of transmission directed to a first wireless communication device that is identified on the basis of the traffic information stored in the received response frame and that is permitted to perform multiple access. A wireless communication device includes: a receiving unit that receives a request frame indicating a request for traffic information; a transmission unit that transmits a response frame in which the traffic information is stored in response to the received request frame; and a control unit that controls transmission of a frame related to the traffic information on the basis of a communication parameter related to multiple access.

Abstract: Provided is a communication apparatus and a communication method that avoid mutual interference between networks. The communication apparatus includes a communication section and a control section. The communication section sends and receives wireless frames. The control section controls transmission and reception of frames. The control section controls transmission, to one or more target stations and with a transmission parameter (transmission power) specified for each target station, of a trigger frame that induces transmission of a transmission refrainment frame. The communication apparatus functions as a base station, and the control section selects, as target stations, one or more subordinate terminals to which a downlink signal is to be sent and controls the transmission of the trigger frame ahead of the transmission of the downlink signal.

Abstract: Improvement of use efficiency of radio resources is realizable. An information processing device is an information processing device which includes a reception unit and a control unit. The reception unit included in this information processing device is a reception unit which receives a packet. In addition, the control unit included in the information processing device is a control unit which controls a packet monitoring state of the information processing device in case of detection of reception of a packet not addressed to the information processing device. The packet monitoring state is controlled on the basis of reception power at the time of reception of the packet not addressed to the information processing device.

Abstract: To improve utilization efficiency of media by an information processing apparatus in a situation where a plurality of networks is adjacent to each other. An information processing apparatus includes: a measuring unit; a judging unit; and a control unit. In the information processing apparatus, the measuring unit measures signal strength of a received signal. The judging unit judges whether or not later signal transmission is possible using a relative value with respect to the signal strength measured by the measuring unit as a threshold on the basis of the threshold. The control unit controls signal transmission in accordance with the judgment by the judging unit about whether or not signal transmission is possible.

Abstract: A communication apparatus and a communication method for performing wireless data transmission using multiple channels are provided. The communication apparatus operating as a base station includes: a communication section that transmits and receives a wireless signal; and a control section that controls a channel used by a subordinate wireless terminal, the control section designates a first transmission scheme to a first wireless terminal that uses a specific primary channel, and designates a second transmission scheme different from the first transmission scheme to a second wireless terminal that uses a non-primary channel that does not include the primary channel. The second transmission scheme has a lower data rate or higher transmission power than that of the first transmission scheme.

Abstract: Provided is a communication apparatus including a communication unit that receives frames including first information from a plurality of other communication apparatuses and transmits first frames including information indicating a first transmission time period to the plurality of other communication apparatuses, a control unit that determines the first transmission time period on the basis of the plurality of pieces of first information, and a processing unit that generates the first frames.

Abstract: Frame collisions are prevented in a communication system in which wireless communication is performed in accordance with the IEEE 802.11 standard. A communication unit receives terminal list information including respective addresses of wireless terminals belonging to a predetermined network. In a case where a frame the destination of which is an address included in the transmitted terminal list information is received, a control unit sets a period to prohibit data transmission until communication in the predetermined networks is completed, and in a case where a frame the destination of which is another address not included in the terminal list information is received, the control unit sets a period to prohibit data communication until communication in a network to which the other address belongs is completed.

Abstract: A wireless communication device including: a transmitter unit configured to transmit an RTS (Request To Send) packet to a plurality of wireless communication devices; a receiver unit configured to receive a CTS (Clear To Send) packet responding to the RTS packet; and a data processing unit configured to transmit data packets from the transmitter unit to the plurality of wireless communication devices when the CTS packet is received by the receiver unit from at least some of the plurality of wireless communication devices.

Abstract: [Problem] To provide a communication device that enable performing radio communication in a more efficient manner. [Solution] A communication device includes a first communication unit that performs frame exchange with another communication device using a first channel and based on the IEEE802.11 standard; a second communication unit that performs communication of data frames with the other communication device using a second channel which has a different frequency band than the first channel; and a control unit that controls communication of the data frames based on the result of the frame exchange.

Abstract: To provide a mechanism capable of improving the efficiency of communications without disturbing other communications, presented herein is a wireless communication device having a reception circuitry that receives a signal and a transmission circuitry that transmits a signal on a basis of a first threshold value set in association with a second threshold value. The first threshold value includes a detection level related to an electric wave in the wireless communication device, and the second threshold value includes a reception determination level of a signal detected by the wireless communication device.

Abstract: The present invention relates to performing properly wireless communications. A communication system includes a first information processing apparatus and a plurality of second information processing apparatuses. The first information processing apparatus is an information processing apparatus that assigns a plurality of channel resources for wireless communications to the plurality of second information processing apparatuses and notify the plurality of second information processing apparatuses of the assignments. The second information processing apparatuses, upon receipt of the notification, transmit to the first information processing apparatus a plurality of signals for providing predetermined information to the first information processing apparatus by using the plurality of assigned channel resources.