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:
Nov. 01, 2022
Filed:
Apr. 21, 2017
Applicants:
Boyu LI, Irvine, CA (US);
Ping Liang, Newport Coast, CA (US);
Dengkui Zhu, Beijing, CN;
Inventors:
Assignee:
RF DSP Inc, Irvine, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 17/10 (2015.01); H04B 7/0452 (2017.01); H04B 17/391 (2015.01); H04B 17/12 (2015.01); H04B 17/21 (2015.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01); H04L 25/02 (2006.01); H04L 27/26 (2006.01);
U.S. Cl.
CPC ...
H04B 17/101 (2015.01); H04B 7/0452 (2013.01); H04B 7/0617 (2013.01); H04B 7/0626 (2013.01); H04B 17/12 (2015.01); H04B 17/21 (2015.01); H04B 17/3912 (2015.01); H04L 5/0048 (2013.01); H04L 25/0204 (2013.01); H04L 25/0224 (2013.01); H04L 27/2605 (2013.01); H04L 27/2613 (2013.01); H04L 5/0007 (2013.01);
Abstract
This invention presents a channel emulator for testing a multi-user multiple input multiple output (MU-MIMO) wireless communication system using an over-the-air (OTA) connection between the antennas of a base station (BS) and the channel emulator. It uses pilot signals with special structures to estimate the channel matrix between the BS and the channel emulator, equalizes the channel when performing emulation of the channels between the BS and a plural of user equipment (UEs) in MU-MIMO communication.