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:
May. 29, 2012

Filed:

Apr. 03, 2008
Applicants:

Jong-hyeuk Lee, Anyang-si, KR;

Sang-boh Yun, Seongnam-si, KR;

Joo-hyun Lee, Suwon-si, KR;

Dae-sik Hong, Seoul, KR;

Hyung-joon Song, Seoul, KR;

Inventors:

Jong-Hyeuk Lee, Anyang-si, KR;

Sang-Boh Yun, Seongnam-si, KR;

Joo-Hyun Lee, Suwon-si, KR;

Dae-Sik Hong, Seoul, KR;

Hyung-Joon Song, Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/28 (2006.01);
U.S. Cl.
CPC ...
Abstract

An apparatus and method for data transmission in an Orthogonal Frequency Division Multiplexing (OFDM) communication system are provided. An OFDM system includes a reference Relay Station (RS) and a cooperative relay station respectively for performing an Spatially Layered transmission Mode (SLM) process by modulating a phase and magnitude of a signal by using a predetermined modulation order suitable for the reference relay station to obtain a spatially-layered signal and for delivering the spatially-layered signal to a target Mobile Station (MS); a Base Station (BS) for selecting the reference relay station and the cooperative relay station among a plurality of relay stations; and an mobile station for detecting data through Maximum Likelihood (ML) detection in which a signal having the largest ML is detected by comparing the received spatially-layered signal with a signal which is converted through the SLM upon receiving the spatially-layered signal from the reference relay station and the cooperative relay station.


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