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.

Date of Patent:
Mar. 18, 2014

Filed:

Oct. 20, 2009
Applicants:

Dan Keun Sung, Daejeon, KR;

Bang Chul Jung, Seoul, KR;

Jin HU, Yuseong-gu, KR;

Ho Young Hwang, Seoul, KR;

Inventors:

Dan Keun Sung, Daejeon, KR;

Bang Chul Jung, Seoul, KR;

Jin Hu, Yuseong-gu, KR;

Ho Young Hwang, Seoul, KR;

Assignee:

Pantech Co., Ltd., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 31/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A scheduler and scheduling method that may select a data transmission time interval and a data transmitting station are included in a multi-user Multiple Input Multiple Output (MIMO) communication system. An access point may include a receiver to receive channel measurement signals from stations using a plurality of receive antennas; a channel estimation unit to generate channel state matrices with respect to wireless channels formed from the stations to the receive antennas using the channel measurement signals; and a scheduler to select at least one transmitting station from the stations by considering the channel state matrices and a number of the receive antennas. The receiver may receive a data stream from the selected transmitting stations. Stations receive identifiers corresponding to transmitting stations and/or transmitting antennas to identify stations or antennas for transmitting data streams to the access point.


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