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:
Apr. 08, 2014
Filed:
Apr. 26, 2013
Ntt Docomo, Inc., Tokyo, JP;
Shinji Mizuta, Munich, DE;
Guido Dietl, Munich, DE;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
In a method for determining a precoding matrix for precoding symbols to be transmitted to a plurality of wireless devices by a node of a wireless communication system the precoding matrix comprises a precoding vector for each wireless device of a plurality of wireless devices, each precoding vector having a precoding element for each transmit antenna of the node. Each precoding element represents a phase shifter for phase shifting a phase of a symbol to be transmitted. A plurality of interference strength indicators for different phase angles is calculated based on the precoding matrix. Further, for the precoding element of the precoding vector a phase angle is selected which corresponds to a calculated interference strength indicator fulfilling a predefined interference strength criterion.