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:
Nov. 21, 2023

Filed:

Jun. 21, 2019
Applicants:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Jianguo Long, Kanata, CA;

Yongquan Qiang, Ottawa, CA;

Inventors:

Jianguo Long, Kanata, CA;

Yongquan Qiang, Ottawa, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/02 (2018.01); H04B 7/06 (2006.01); H04B 7/0456 (2017.01);
U.S. Cl.
CPC ...
H04B 7/0639 (2013.01); H04B 7/0456 (2013.01); H04B 7/068 (2013.01); H04B 7/0617 (2013.01);
Abstract

Embodiments of a method in a base station configured to transmit and receive wireless signals to and from a user equipment, UE. A downlink channel response of a first UE antenna is determined, based on uplink signals received from the UE. First preceding weights are calculated based on the determined channel response of the first UE antenna. Orthogonal or quasi-orthogonal preceding weights are determined based on the first preceding weights. First and second downlink signal layers are transmitted using the first preceding weights and the orthogonal or quasi-orthogonal preceding weights.


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