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:
Jul. 15, 2025
Filed:
Aug. 09, 2021
Applicant:
Lenovo (Singapore) Pte. Ltd., New Tech Park, SG;
Inventor:
Colin D. Frank, Park Ridge, IL (US);
Assignee:
Lenovo (Singapore) Pte. Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/0413 (2017.01); H04B 7/005 (2006.01); H04L 1/06 (2006.01); H04L 25/03 (2006.01);
U.S. Cl.
CPC ...
H04B 7/0413 (2013.01); H04B 7/005 (2013.01); H04L 1/06 (2013.01); H04L 25/03057 (2013.01); H04L 2025/03426 (2013.01); H04L 2025/03636 (2013.01);
Abstract
Apparatuses, methods, and systems are disclosed for calculating an EVM of a transmitter. One apparatus includes a processor and a receiver that receives a signal via a propagation channel from an antenna port at a transmitter, the antenna port comprising multiple antennas and with an antenna connector for each antenna. The processor measures the received signal using an unbiased linear MMSE equalizer and calculates an EVM of the antenna port, where the EVM is calculated as 100 times the square root of the mean square error of the symbol estimate at the output of the unbiased linear MMSE equalizer.