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. 03, 2015
Filed:
Aug. 29, 2011
Hiromichi Tomeba, Osaka, JP;
Shimpei to, Osaka, JP;
Takashi Onodera, Osaka, JP;
Hiroshi Nakano, Osaka, JP;
Alvaro Ruiz Delgado, Osaka, JP;
Hiromichi Tomeba, Osaka, JP;
Shimpei To, Osaka, JP;
Takashi Onodera, Osaka, JP;
Hiroshi Nakano, Osaka, JP;
Alvaro Ruiz Delgado, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
In a codebook-based closed loop type MIMO, improvement for complexity in a mobile station apparatus, and reduction of amount of overhead needed for notification from the mobile station apparatus should be provided. A wireless transmission apparatus that includes a plurality of transmission antennas, performs precoding on a data signal for each of a plurality of reception apparatuses and spatially multiplexes and transmits the signal after the precoding. The wireless transmission apparatus performs sharing a codebook describing a plurality of linear filters associated with each other is shared with the each reception apparatus, and precoding on the data signal for each reception apparatus, based on a first linear filter that is extracted from the codebook in each reception apparatus based on the association and that is notified from each reception apparatus.