The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 21, 2023

Filed:

Aug. 27, 2020
Applicant:

International Semiconductor Group, Seoul, KR;

Inventors:

Toshihisa Nabetani, Kawasaki, JP;

Tsuguhide Aoki, Kawasaki, JP;

Hiroki Mori, Kawasaki, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 1/00 (2005.12); H04B 7/06 (2005.12); H04B 7/0452 (2016.12); H04L 5/00 (2005.12);
U.S. Cl.
CPC ...
H04L 1/0026 (2012.12); H04B 7/0452 (2012.12); H04B 7/068 (2012.12); H04B 7/0697 (2012.12); H04L 5/00 (2012.12); H04L 5/0094 (2012.12);
Abstract

A wireless communication device includes a transmitter and a receiver. The transmitter transmits a first frame containing notification information to specify first and second wireless terminals and a second frame for channel estimation. The receiver receives a third frame transmitter from the first wireless terminal and a fourth frame transmitted from the second wireless terminal. The third frame and the fourth frame are transmitted in a multiplexing scheme by the first and the second wireless terminals. The third frame contains first channel information estimated based on the second frame. The fourth frame contains second channel information estimated based on the second frame. The first frame contains at least either information to specify a preamble of the third frame and a preamble of the fourth frame or information to specify a subcarrier used for transmission of the third frame and a subcarrier used for transmission of the fourth frame.


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