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:
Oct. 28, 2025

Filed:

Jul. 08, 2024
Applicant:

Sun Patent Trust, New York, NY (US);

Inventors:

Yutaka Murakami, Kanagawa, JP;

Tomohiro Kimura, Osaka, JP;

Mikihiro Ouchi, Osaka, JP;

Assignee:

SUN PATENT TRUST, New York, NY (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/26 (2006.01); H04B 7/0426 (2017.01); H04B 7/0452 (2017.01); H04B 7/0456 (2017.01); H04B 7/06 (2006.01); H04B 7/08 (2006.01); H04B 7/12 (2006.01); H04L 1/00 (2006.01); H04L 1/06 (2006.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01); H04L 25/03 (2006.01); H04L 27/00 (2006.01); H04L 27/34 (2006.01); H04L 25/06 (2006.01);
U.S. Cl.
CPC ...
H04L 27/2602 (2013.01); H04B 7/0434 (2013.01); H04B 7/0452 (2013.01); H04B 7/0456 (2013.01); H04B 7/046 (2013.01); H04B 7/0473 (2013.01); H04B 7/0617 (2013.01); H04B 7/0697 (2013.01); H04B 7/08 (2013.01); H04B 7/086 (2013.01); H04B 7/12 (2013.01); H04L 1/0045 (2013.01); H04L 1/0047 (2013.01); H04L 1/005 (2013.01); H04L 1/0061 (2013.01); H04L 1/0071 (2013.01); H04L 1/06 (2013.01); H04L 5/0007 (2013.01); H04L 5/0026 (2013.01); H04L 25/0204 (2013.01); H04L 25/0226 (2013.01); H04L 25/03942 (2013.01); H04L 27/0008 (2013.01); H04L 27/265 (2013.01); H04L 27/3405 (2013.01); H04L 1/0003 (2013.01); H04L 1/0009 (2013.01); H04L 1/0057 (2013.01); H04L 2001/0093 (2013.01); H04L 1/0643 (2013.01); H04L 5/001 (2013.01); H04L 5/0023 (2013.01); H04L 5/0048 (2013.01); H04L 25/0222 (2013.01); H04L 25/0248 (2013.01); H04L 25/067 (2013.01); H04L 27/2626 (2013.01); H04L 27/26524 (2021.01);
Abstract

Transmission quality is improved in an environment in which direct waves dominate in a transmission method for transmitting a plurality of modulated signals from a plurality of antennas at the same time. All data symbols used in data transmission of a modulated signal are precoded by hopping between precoding matrices so that the precoding matrix used to precode each data symbol and the precoding matrices used to precode data symbols that are adjacent to the data symbol in the frequency domain and the time domain all differ. A modulated signal with such data symbols arranged therein is transmitted.


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