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:
Jun. 25, 2013
Filed:
Apr. 16, 2009
Applicants:
Eun-seok Ko, Seongnam-si, KR;
Eun-yong Kim, Hwaseong-si, KR;
Yung-soo Kim, Seongnam-si, KR;
Inventors:
Assignee:
Samsung Electronics Co., Ltd., Suwon-si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 27/06 (2006.01); H04L 25/02 (2006.01); H04L 5/00 (2006.01); H04B 7/04 (2006.01); H04B 7/02 (2006.01); H04B 7/08 (2006.01);
U.S. Cl.
CPC ...
H04L 25/0202 (2013.01); H04L 5/0048 (2013.01); H04L 5/0007 (2013.01); H04B 7/0413 (2013.01); H04B 7/0452 (2013.01); H04B 7/024 (2013.01); H04B 7/0851 (2013.01); H04B 7/086 (2013.01);
Abstract
An apparatus and method for reducing pilot overhead in a multi-antenna system are provided. The method generates postcodes and pre-codes for streams used to transmit signals to at least two receivers. The method allocates a pilot signal to at least one of the streams, and allocates an additional pilot signal shared by at least one of the streams. The method precodes the pilot signal allocated to at least one of the streams, the additional pilot signal, and data to be transmitted to each of the receivers, based on the pre-code for each of the streams, prior to transmission.