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. 14, 2025
Filed:
Oct. 08, 2019
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Pål Frenger, Linköping, SE;
Erik G. Larsson, Linköping, SE;
Emil Björnson, Hägersten, SE;
Martin Hessler, Linköping, SE;
Telefonaktiebolaget LM Ericsson (Publ), Stockholm, SE;
Abstract
The embodiments herein relate to a method performed by an APU () for handling data transmissions in a distributed massive MIMO communication system (). The APU () is comprised in one of at least two non-co-located groups of APUs () in the system (). The APU () determines a first pre-coding configuration and a DL reference signal. The APU () transmits, to a UE (), the DL reference signal pre-coded with the first pre-coding configuration. The APU () receives information indicating at least one phase adjustment parameter from the UE (), and determines a second pre-coding configuration based on the first pre-coding configuration adjusted with the phase adjustment parameter. The APU () transmits DL data pre-coded with the second pre-coding configuration to the UE ().