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.:

US 9438324 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 06, 2016

Filed:

Oct. 11, 2011
Applicants:

Michael Ohm, Stuttgart, DE;

Lutz Schoenerstedt, Ludwigsburg, DE;

Inventors:

Michael Ohm, Stuttgart, DE;

Lutz Schoenerstedt, Ludwigsburg, DE;

Assignee:

Alcatel Lucent, Boulogne-Billancourt, FR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 4/00 (2009.01); H04B 7/04 (2006.01); H04B 7/06 (2006.01);
U.S. Cl.
CPC ...
H04B 7/0452 (2013.01); H04B 7/0417 (2013.01); H04B 7/0619 (2013.01);
Abstract

A method for assigning precoding vectors in a mobile cellular network as well as a base station. The base station provides a code book comprising indexed precoding vectors to mobile stations associated with the base station via a downlink channel. A mobile station selects indices of preferred precoding vectors from the code book and reports the indices to the base station via an uplink channel. The mobile selects indices of preferred companion precoding vectors from the code book that shall preferably be used by the base station for other mobile stations served by the base station on the same time/frequency resource, and reports the indices associated with the preferred companion precoding vectors to the base station via the uplink channel. For each mobile station, the base station determines a precoding vector based on the reported indices of the preferred precoding vectors and the reported indices of the preferred companion precoding vectors.


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