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:
Aug. 28, 2012

Filed:

Jan. 19, 2010
Applicants:

Sung-man Kim, Suwon-si, KR;

Jun-sung Lee, Seoul, KR;

Seong-yong Park, Seongnam-si, KR;

Inventors:

Sung-Man Kim, Suwon-si, KR;

Jun-Sung Lee, Seoul, KR;

Seong-Yong Park, Seongnam-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/38 (2006.01);
U.S. Cl.
CPC ...
Abstract

A base station is capable of performing 4-beamforming using Radio Units (RU), each having two paths in a wireless communication system. The base station includes a Digital Unit (DU), a first RU, and a second RU. The DU performs a mutual conversion function between an information bit line and a digital signal, calculates beamforming coefficients for 4-beamforming, and performs the 4-beamforming using the beamforming coefficients. The first RU has two Radio Frequency (RF) paths, extracts a clock signal from a digital signal from the DU, and provides the clock signal to the second RU. The second RU has two RF paths and operates according to the clock signal provided from the first RU.


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