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:
Nov. 01, 2016

Filed:

Dec. 22, 2012
Applicant:

Kt Corporation, Gyeonggi-do, KR;

Inventors:

Ki-Ho Lee, Gyeonggi-do, KR;

Yong-Gyoo Lee, Seoul, KR;

Yung-Ha Ji, Gyeonggi-do, KR;

Assignee:

KT CORPORATION, Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 52/16 (2009.01); H04W 52/32 (2009.01); H04W 52/04 (2009.01); H04W 52/28 (2009.01);
U.S. Cl.
CPC ...
H04W 52/04 (2013.01); H04W 52/283 (2013.01); H04W 52/16 (2013.01); H04W 52/325 (2013.01); Y02B 60/50 (2013.01);
Abstract

Described embodiments provide a method for controlling radio units to transmit a signal to user equipment wherein each one of the radio units includes at least two antennas associated with a different transmission pattern. The method may include determining whether user equipment is located at an overlapping cell area of a first cell and a second cell and controlling a first radio unit in the first cell to transmit a signal to the user equipment using a first resource block and controlling a second radio unit in the second cell to transmit a reference signal associated with the first resource block with a second transmission power when the user equipment is determined as being located in the overlapping cell area. The second transmission power may be lower than a first transmission power of the first radio unit in the first cell for transmitting a reference signal using the first resource block.


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