Sony Corporation

Sony Group Corporation

Sony Ericsson Mobile Communications Japan, Inc.

Sony Computer Entertainment Inc.

Takeshi Itagaki

Tomoya Yamaura

Yuichi Morioka

Katsutoshi Itoh

Masanori Sato

Eisuke Sakai

Kazuyuki Sakoda

Shigeru Sugaya

Osamu Yoshimura

Makoto Natori

Mitsuyoshi Yasuda

Minoru Yokoshi

Yusuke Tanaka

Masahito Mori

Hideyuki Suzuki

Junji Kato

Yoshihiko Ikenaga

Shinji Takae

Tadashi Ehara

Takeshi Yamagishi

Masakazu Yajima

Tomoaki Matsumura

Masahiko Naito

Hitoshi Nakamura

Toshiya Ikenaga

Katsunori Honma

Hideaki Ishioka

Hiroyuki Shigei

Haruhiko Yata

Nobuaki Kawai

Koki Horita

Katsuhiko Nakano

Hidekazu Kamimura

Daichi Ueura

Yoshiaki Kameya

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.

Communication apparatus and communication method

[Object] To improve the reliability by using an acknowledgement response while using radio resources efficiently in multicast transmission over wireless transmission. [Solution] A plurality of wireless communication devices included in a multicast group, when receiving a data frame, transmit simultaneously an acknowledgement response of multicast using spatial multiplexing in response to an acknowledgement request from a transmission source. On the other hand, a wireless communication device of the transmission source decomposes the acknowledgement responses simultaneously received into the original individual acknowledgement responses and restores them using signal processing based on information on a channel with each wireless communication device of a transmission destination.

Wireless communication device

A determination device according to the present application includes a communication unit, an acquisition unit, and a determination unit. The communication unit selectively connects to and communicates with a plurality of communication networks. The acquisition unit acquires sensor information detected by a mobile communication device used by a user and communication information indicating a state of communication quality to each communication network. The determination unit determines whether to switch to another communication network among the plurality of communication networks, on the basis of the sensor information and the communication information acquired by the acquisition unit.

Determination device, determination method, and determination program for switching networks based on a plurality of learning models

An information processing device includes a control unit. A first device that transmits data to the information processing device has a multiplexing function for multiplexing and transmitting data from a plurality of devices including the first device to the information processing device. The control unit provided in the information processing device performs control to tell the first device having the multiplexing function a multiplexing method for notification information and presence of data addressed to the first device. The notification information indicates that the first device has shifted from a functional suspension state to a data receivable state. The information processing device can reduce power consumption.

Information processing device, and information processing method using multiple multiplexing methods

Reception of a frame is appropriately stopped. A communication system is a communication system that includes first and second information processing devices. The first information processing device performs control such that a signal (which is a signal having backward compatibility) serving as an index by which the second information processing device receiving a frame stops the reception of the frame is transmitted to the second information processing device. The second information processing device performs control such that the reception of the frame is stopped based on the signal (which is a signal having backward compatibility) serving as an index by which reception of the frame is stopped when the frame transmitted from the first information processing device is received.

Information processing device, communication system, and information processing method

[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.

A wireless communication device including: a wireless communication unit configured to perform wireless communication with another wireless communication device in accordance with an IEEE 802.11 standard; and a control unit configured to control the wireless communication unit so that the wireless communication unit includes schedule information in a PLCP header defined in the IEEE 802.11 standard and transmits the schedule information to the other wireless communication device, the schedule information relating to orthogonal frequency-division multiple access.

Wireless communication device and method of wireless communication for improving the utilization efficiency of radio resources

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.

An information processing apparatus including a control unit. In a case where a first physical layer network identifier for identifying a first network to which an apparatus in question belongs is determined to match a second physical layer network identifier for identifying a second network to which the apparatus in question does not belong, the control unit changes a first physical layer network identifier. Then, the control unit transmits the change information relating to the change to another information processing apparatus. Further, in a case where change information for changing a first physical layer network identifier for identifying a first network to which the apparatus in question belongs is received from another information processing apparatus which belongs to the first network, the control unit changes a condition for terminating reception processing of a packet on the basis of the change information in a middle of the reception processing.

Information processing apparatus

[Object] To provide a communication apparatus and a communication method which are capable of reducing the overhead of communication while suppressing influence on the frame reception process. [Solution] Provided is a communication apparatus, including: a processing unit configured to select one of a frame of a first format including a training signal and a frame of a second format not including a first field which is at least a part of the training signal, and generate the frame of the selected format; and a communication unit configured to transmit the frame of the first format or the frame of the second format. Also provided is a communication method, including: selecting one of a frame of a first format including a training signal and a frame of a second format not including a first field which is at least a part of the training signal, and generating the frame of the selected format; and transmitting the frame of the first format or the frame of the second format.

An electronic device including circuitry configured to perform control in a manner that a Physical Layer Convergence Protocol (PLCP) header format is selected from a plurality of PLCP header formats; and append the selected PLCP header to a physical layer packet for transmission.

Information processing apparatus and information processing method

Growing community of inventors

Saitama, Japan

Takeshi Itagaki