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.
Patent No.:
Date of Patent:
Feb. 24, 2015
Filed:
Apr. 12, 2010
Hyun Soo Ko, Anyang-si, KR;
Bin Chul Ihm, Anyang-si, KR;
Sung Ho Park, Anyang-si, KR;
Young Seob Lee, Anyang-si, KR;
Seung Hyun Kang, Anyang-si, KR;
Ja Ho Koo, Anyang-si, KR;
Su Nam Kim, Anyang-si, KR;
Wook Bong Lee, Anyang-si, KR;
Jin Young Chun, Anyang-si, KR;
Hyun Soo Ko, Anyang-si, KR;
Bin Chul Ihm, Anyang-si, KR;
Sung Ho Park, Anyang-si, KR;
Young Seob Lee, Anyang-si, KR;
Seung Hyun Kang, Anyang-si, KR;
Ja Ho Koo, Anyang-si, KR;
Su Nam Kim, Anyang-si, KR;
Wook Bong Lee, Anyang-si, KR;
Jin Young Chun, Anyang-si, KR;
LG Electronics Inc., Seoul, KR;
Abstract
The present invention relates to a wireless communication system, and provides a method and an apparatus for transmitting a downlink reference signal in the wireless communication system. The method for enabling a base station to transmit the reference signal to a terminal using layers of 8 or less in accordance with one embodiment of the present invention comprises the steps of: transmitting data for the layers of 8 or less through a data domain of a downlink sub frame; and transmitting a reference signal for the layers of 8 or less on a fixed OFDM symbol of the downlink sub frame, wherein the reference signal is a DRS (Dedicated Reference Signal) which demodulates the data for the layers of 8 or less, and the reference signal for the layers of 8 or less is separated into 1st and 2nd groups, and reference signals of the 1st and 2nd groups can be multiplexed in a CDM (Code Division Multiplexing) method on one resource element, respectively.