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.
Patent No.:
Date of Patent:
Feb. 15, 2022
Filed:
Jul. 28, 2020
Applicant:
Genghiscomm Holdings, Llc, Boulder, CO (US);
Inventor:
Steve Shattil, Cheyenne, WY (US);
Assignee:
Genghiscomm Holdings, LLC, Boulder, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/26 (2006.01); H04J 13/00 (2011.01); H04L 5/00 (2006.01); H04J 11/00 (2006.01); H04B 7/06 (2006.01); H04B 7/026 (2017.01); H04B 7/024 (2017.01); H04B 7/0452 (2017.01); H04J 13/12 (2011.01);
U.S. Cl.
CPC ...
H04L 27/2628 (2013.01); H04B 7/024 (2013.01); H04B 7/026 (2013.01); H04B 7/0452 (2013.01); H04B 7/0617 (2013.01); H04B 7/0697 (2013.01); H04J 11/0093 (2013.01); H04J 13/0003 (2013.01); H04J 13/12 (2013.01); H04L 5/0007 (2013.01);
Abstract
An OFDM transmitter spreads original data symbols with a complex-valued spreading matrix derived from a discrete Fourier transform. Spread data symbols are mapped to OFDM subcarriers. Spreading and mapping are configured to produce a transmitted spread-OFDM signal with a low peak-to-average power ratio (PAPR) and orthogonal code spaces. In MIMO systems, the complex-valued spreading matrix can comprise a MIMO precoding matrix, and the code spaces can comprise MIMO subspaces. In Cooperative-MIMO, a combination of low code-space cross correlation and low PAPR can be achieved.