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:
Nov. 18, 2014
Filed:
Sep. 23, 2010
Markus Ringström, Stockholm, SE;
BO Göransson, Sollentuna, SE;
Fredrik Ovesjö, Älvsjö, SE;
Henrik Asplund, Stockholm, SE;
Markus Ringström, Stockholm, SE;
Bo Göransson, Sollentuna, SE;
Fredrik Ovesjö, Älvsjö, SE;
Henrik Asplund, Stockholm, SE;
Optis Cellular Technology, LLC, Plano, TX (US);
Abstract
The invention relates to the technical field of radio communications, and in particular to an antenna device for a radio base station, and a method of operating an antenna device in a Multiple-Input Multiple-Output system. Embodiments of the invention disclose a secondary precoder () in series with a Multiple-Input Multiple-Output precoder (). The Multiple-Input Multiple-Output precoder () has a first plurality of inputs () for one or more Multiple-Input Multiple-Output data streams, and a first plurality of outputs () for the one or more Multiple-Input Multiple-Output data streams. The secondary precoder has a second plurality of inputs () and a second plurality of outputs (). The first plurality of outputs () are in communication with the second plurality of inputs (). The antenna device further comprises a controller device (), and the antenna device is operable to control an output power value of the one or more data streams at the second plurality of outputs ().