Invention Grant
- Patent Title: Downlink orthogonal frequency-division multiplexing (OFDM) beamforming simultaneous transmission
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Application No.: US16945742Application Date: 2020-07-31
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Publication No.: US11324045B2Publication Date: 2022-05-03
- Inventor: Liangxiao Xin , Mohamed Abouelseoud , Qing Xia , Kazuyuki Sakoda , Hiromasa Uchiyama , Yusuke Tanaka , Kosuke Aio , Ryuichi Hirata , Ken Tanaka , Thomas Handte , Dana Ciochina
- Applicant: SONY GROUP CORPORATION
- Applicant Address: JP Tokyo
- Assignee: SONY GROUP CORPORATION
- Current Assignee: SONY GROUP CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: O'Banion & Ritchey LLP
- Agent John P. O'Banion
- Main IPC: H04W74/08
- IPC: H04W74/08 ; H04B7/06 ; H04W80/02 ; H04W16/28

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.
Public/Granted literature
- US20210307069A1 DOWNLINK OFDM BEAMFORMING SIMULTANEOUS TRANSMISSION Public/Granted day:2021-09-30
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