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:
Dec. 14, 2021
Filed:
Jun. 27, 2018
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Vicent Molés Cases, Nules, ES;
Mattias Frenne, Uppsala, SE;
Lars Lindbom, Karlstad, SE;
Karl Werner, Segeltorp, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
Methods and apparatuses are disclosed for PT-RS selection. In one embodiment, a wireless device is configured to determine a layer based at least on a precoder associated with a precoder matrix indicator, PMI; and transmit an indication of the determined layer to a network node as part of channel state information, CSI, feedback. In other embodiments, a network device is configured to receive an indication of a layer for a phase-tracking reference signal, PT-RS, transmission as part of channel state information, CSI, feedback; determine a precoder based at least on the indication of the layer for the PT-RS transmission; and transmit the PT-RS, the PT-RS transmission associated with the indicated layer and a PT-RS port.