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:
Oct. 05, 2021
Filed:
Apr. 29, 2019
Applicant:
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Inventors:
Sven Petersson, Sävedalen, SE;
Fredrik Athley, Kullavik, SE;
Andreas Nilsson, Gothenburg, SE;
Roy Timo, Järfälla, SE;
Xinlin Zhang, Gothenburg, SE;
Assignee:
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/04 (2017.01); H04B 7/0456 (2017.01); H04B 7/06 (2006.01); H04L 5/00 (2006.01);
U.S. Cl.
CPC ...
H04B 7/0469 (2013.01); H04B 7/0639 (2013.01); H04L 5/0051 (2013.01);
Abstract
There is provided mechanisms for transmission of reference signals. A method is performed by a terminal device. The terminal device is configured for codebook based precoding. The terminal device comprises at least two physical antenna ports. The method comprises transmitting, in all physical antenna port, as many uplink reference signals as there are physical antenna ports in total.