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:
Jan. 13, 2026
Filed:
Mar. 08, 2021
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm, SE;
Abstract
Disclosed is a method performed by a Baseband unit, BBU, system comprising a distributed base station system that comprises a BBU, a first radio unit, RU, connected to the BBU over a fronthaul link, and a second RU connected to the first RU over an RU link. The method comprises determining a first and second portion of beamforming weights, BFW, based on a DL channel estimate of the first respective second RU, wherein the BFW are to be used for beamforming K user-layer DL signals to be sent to a number of UEs, and determining a first part of the BFW based on the DL channel estimates of the first RU and the second RU, for performing interference cancellation between the user-layer signals. Sending the first part of the BFW and the first and second portion of the BFW to the first RU and the first RU forwards the received BFWs to the second RU.