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:
May. 18, 2021
Filed:
May. 08, 2019
Ping Liang, Newport Coast, CA (US);
Dengkui Zhu, Beijing, CN;
Boyu LI, Irvine, CA (US);
Yiming MA, Irvine, CA (US);
Ping Liang, Newport Coast, CA (US);
Dengkui Zhu, Beijing, CN;
Boyu Li, Irvine, CA (US);
Yiming Ma, Irvine, CA (US);
RF DSP Inc., Irvine, CA (US);
Abstract
This invention presents methods for MU-MIMO wireless communication systems comprising a BS with plural of antennas, either closely located or distributed; A plural of AFRs deployed over a coverage area, each AFR has N≥1 BF antennas with a beam pattern facing the MU-BFer and N≥1 UF antennas with a beam pattern facing UEs or downstream AFR(s); A channel estimation module for estimating the Total Channels between a plural of UEs and the BS with the AFRs in place; and, A MU-BFer that uses the estimates of the Total Channels to perform beamforming computations for transmitting and/or receiving multiple spatially multiplexed streams of signals to or from a plural of UEs using the same frequency resource.