公开(公告)号：US11240845B2

公开(公告)日：2022-02-01

申请号：US16763997

申请日：2018-10-05

Applicant: Sony Corporation

Inventor： Ryuichi Hirata ,  Yuichi Morioka ,  Kosuke Aio

IPC: H04W4/00 ,  H04W74/08 ,  H04W76/15 ,  H04W28/20 ,  H04W72/04

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.

公开(公告)号：US20210307069A1

公开(公告)日：2021-09-30

申请号：US16945742

申请日：2020-07-31

Applicant: SONY CORPORATION

Inventor： Liangxiao Xin ,  Mohamed Abouelseoud ,  Qing Xia ,  Kazuyuki Sakoda ,  Hiromasa Uchiyama ,  Yusuke Tanaka ,  Kosuke Aio ,  Ryuichi Hirata ,  Ken Tanaka ,  Thomas Handte ,  Dana Ciochina

IPC: H04W74/08 ,  H04W16/28 ,  H04W80/02 ,  H04B7/06

Abstract: A WiFi communications mechanism in which simultaneous transmission is negotiated and beamforming communications performed towards at least one station (STA), while nulling is performed towards one or more other access points (APs) to reduce interference. Omni-directional transmissions are utilized in a manner to overcome preamble interferences, which is used in combination with synchronizing symbol intervals to eliminate interference from symbol transitions. The enhanced simultaneous transmission protocol allows two APs to transmit simultaneously without interfering with one another.

公开(公告)号：US11425629B2

公开(公告)日：2022-08-23

申请号：US17042375

申请日：2019-03-22

Applicant: SONY CORPORATION

Inventor： Yuichi Morioka ,  Ryuichi Hirata

IPC: H04W48/16 ,  H04W48/10 ,  H04W52/46 ,  H04W84/12

Abstract: The technology relates to a wireless communication apparatus and a wireless communication method for enabling a wireless terminal station to easily select an appropriate connection destination from among a plurality of wireless base stations. A first wireless communication apparatus includes a communication section to transmit to a wireless terminal station a broadcast signal including network connection information regarding a wireless communication system having a plurality of base stations communicating with each other, the first wireless communication apparatus functioning as one of the plurality of wireless base stations. A second wireless communication apparatus includes a communication section to receive a broadcast signal including network connection information regarding a wireless communication system, from a plurality of wireless base stations constituting the wireless communication system and communicating with one another, the second wireless communication apparatus functioning as a wireless terminal station.

公开(公告)号：US11582725B2

公开(公告)日：2023-02-14

申请号：US16982587

申请日：2019-02-14

Applicant: SONY CORPORATION

Inventor： Ryuichi Hirata ,  Ren Sugai ,  Yuichi Morioka

IPC: H04W72/04 ,  H04W84/12

Abstract: [Problem] It becomes possible to realize more efficient communication in a wireless local area network (LAN) system.
[Solution] There is provided a wireless communication device that functions as an access point of a wireless LAN, including: a generation unit that generates a wireless signal in which allocation information for allocating a plurality of stations to one resource unit is stored; and a transmission unit that transmits the wireless signal to the stations.

公开(公告)号：US11412547B2

公开(公告)日：2022-08-09

申请号：US16763235

申请日：2018-10-04

Applicant: Sony Corporation

Inventor： Ryuichi Hirata ,  Yuichi Morioka ,  Yusuke Tanaka

IPC: H04W74/08 ,  H04W74/00 ,  H04L1/18 ,  H04L5/14

Abstract: [Problem] A communication device that can more efficiently avoid the hidden node problem is provided.
[Solution] The communication device includes a communication unit configured to receive a data signal from another communication device, a determination unit configured to determine whether the data signal received by the communication unit includes a request for transmission of a busy signal indicating that a channel is in use, and a control unit configured to control a process of transmitting the busy signal by the communication unit, in accordance with a determination result of the determination unit.

公开(公告)号：US11431452B2

公开(公告)日：2022-08-30

申请号：US16959678

申请日：2018-12-28

Applicant: Sony Corporation

Inventor： Ryuichi Hirata ,  Yuichi Morioka ,  Kosuke Aio

IPC: H04L5/00 ,  H04W72/04 ,  H04W74/02

Abstract: A wireless communication system includes a wireless communication device that functions as a base station, and one or more wireless communication terminals that communicate with the wireless communication device as slave units, a controller in the wireless communication device sets propriety information indicating whether or not reception of a packet transmitted from the wireless communication terminals is possible during a downlink transmission period when the wireless communication device transmits a packet, and a communication section in the wireless communication device transmits the packet including the propriety information. Furthermore, a controller in the wireless communication terminal controls transmission of the packet to the wireless communication device, during the downlink transmission period when the wireless communication device transmits the packet, according to the propriety information included in the packet, the propriety information indicating whether or not reception of the packet transmitted from the wireless communication terminals is possible.

公开(公告)号：US11218973B2

公开(公告)日：2022-01-04

申请号：US16964600

申请日：2019-01-18

Applicant: Sony Corporation

Inventor： Kosuke Aio ,  Yusuke Tanaka ,  Ryuichi Hirata

IPC: H04W52/24 ,  H04W52/14 ,  H04W76/19 ,  H04L5/00 ,  H04W84/12

Abstract: The present disclosure relates to a transmission apparatus and a transmission method, a reception apparatus and a reception method, and a communication system that make it possible to implement stabilized communication irrespective of a fluctuation of a communication environment in a WLAN (Wireless LAN, WaveLAN).
When a transmission apparatus transmits a data signal to a reception apparatus, the reception apparatus returns a response signal including a feedback parameter (FP) to the transmission apparatus. In a case where a reception situation of the reception apparatus is poor and improvement of it is necessitated on the basis of the FP, the transmission apparatus adjusts transmission power or the like to improve the reception situation of the reception apparatus. The present disclosure can be applied to a communication system in a WLAN.

公开(公告)号：US10980063B2

公开(公告)日：2021-04-13

申请号：US16462409

申请日：2017-09-26

Applicant: SONY CORPORATION

Inventor： Ryuichi Hirata ,  Yusuke Tanaka ,  Shigeru Sugaya

IPC: H04W74/08 ,  H04W76/18 ,  H04L1/16 ,  H04L29/06 ,  H04W52/36 ,  H04W84/12 ,  H04W28/04

Abstract: A communication device including a transmitting unit configured to perform transmission processing of a first signal, a receiving unit configured to perform reception processing of a second signal which responds to the first signal in a predetermined period determined by a time point of the transmission processing, and a determining unit configured to perform determination as to whether or not at least part of the first signal is correctly received at a transmission destination device on the basis of information acquired in process of the reception processing.