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:
Jun. 24, 2014

Filed:

May. 14, 2009
Applicants:

Jae Wan Kim, Anyang-si, KR;

Wook Bong Lee, Anyang-si, KR;

Su Nam Kim, Anyang-si, KR;

Dong Guk Lim, Anyang-si, KR;

Bin Chul Ihm, Anyang-si, KR;

Inventors:

Jae Wan Kim, Anyang-si, KR;

Wook Bong Lee, Anyang-si, KR;

Su Nam Kim, Anyang-si, KR;

Dong Guk Lim, Anyang-si, KR;

Bin Chul Ihm, Anyang-si, KR;

Assignee:

LG Electronics, Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04J 3/00 (2006.01); H04W 4/00 (2009.01);
U.S. Cl.
CPC ...
Abstract

A collaborative MIMO method using a sounding channel in a multi-cell environment is disclosed. The method includes acquiring, by a first base station providing a service for a first cell, first CSI of a first downlink channel between the first base station and a mobile station, transmitting, to a second base station, a signal including information requesting that the second base station providing a service for a second cell acquire second CSI of a second downlink channel between the second base station and the mobile station, and acquiring, by the second base station, the second CSI. The mobile station is served by the first base station.


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