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:
Oct. 09, 2018

Filed:

Feb. 19, 2014
Applicant:

Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;

Inventors:

Jianguo Long, Kanata, CA;

Girum Fantaye, Ottawa, CA;

Bo Göransson, Sollentuna, SE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 17/17 (2015.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01); H04L 1/18 (2006.01); H04W 52/42 (2009.01);
U.S. Cl.
CPC ...
H04B 17/17 (2015.01); H04B 7/0689 (2013.01); H04L 1/1893 (2013.01); H04L 1/1896 (2013.01); H04L 5/0048 (2013.01); H04W 52/42 (2013.01);
Abstract

The disclosure relates to a method, performed in a multi-antenna radio access node comprising four logical antenna ports mapped to corresponding physical antennas, of transmitting data using three physical antennas. The method comprises determining (S) loss of data transmission from one physical antenna of the four physical antennas. A required multi-antenna transmission scheme is determined (S). An antenna mapping matrix prestored in the radio access node is selected (S), the selected antenna mapping matrix adapted to the required multi-antenna transmission scheme. Data on the four logical antenna ports are re-mapped (S) to the remaining three physical antennas by using the selected antenna mapping matrix, whereupon the data is transmitted (S) from the remaining three physical antennas.


Find Patent Forward Citations

Loading…