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Patent Searching and Data


Title:
BLIND CFO ESTIMATION METHOD IN WIRELESS COMMUNICATION SYSTEM USING QPSK METHOD
Document Type and Number:
WIPO Patent Application WO/2016/080723
Kind Code:
A1
Abstract:
Disclosed is a CFO estimation method, which generates a first function defined by a received signal of two sequential OFDM symbols for a specific subcarrier, generates a second function defined on the basis of signs and magnitudes of a real number part and an imaginary number part of the first function, repeats the steps of generating the first function and the second function for all of a subcarrier set, and determines, as a residual CFO, a phase of a third function obtained by adding up the results of the repetition.

Inventors:
LEE, Kilbom (IP Center, LG Electronics Inc.19, Yangjae-daero 11gil,Seocho-gu, Seoul, 06772, KR)
LEE, Wookbong (IP Center, LG Electronics Inc.19, Yangjae-daero 11gil,Seocho-gu, Seoul, 06772, KR)
PARK, Eunsung (IP Center, LG Electronics Inc.19, Yangjae-daero 11gil,Seocho-gu, Seoul, 06772, KR)
CHO, Hangyu (IP Center, LG Electronics Inc.19, Yangjae-daero 11gil,Seocho-gu, Seoul, 06772, KR)
KANG, Jiwon (IP Center, LG Electronics Inc.19, Yangjae-daero 11gil,Seocho-gu, Seoul, 06772, KR)
Application Number:
KR2015/012314
Publication Date:
May 26, 2016
Filing Date:
November 17, 2015
Export Citation:
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Assignee:
LG ELECTRONICS INC. (128 Yeoui-daero, Yeongdeungpo-gu, Seoul, 07336, KR)
International Classes:
H04L27/26; H04L27/227
Foreign References:
KR20120107684A2012-10-04
US20130223562A12013-08-29
US20110255864A12011-10-20
KR20100102167A2010-09-20
Other References:
MOHAMMAD MOVAHHEDIAN ET AL.: "Blind CFO Estimation for Linearly Precoded OFDMA Uplink", IEEE TRANSACTION ON SIGNAL PROCESSING, vol. 58, no. 9, September 2010 (2010-09-01), XP011308914
Attorney, Agent or Firm:
KIM, Yong In et al. (KBK & Associates, 7th Floor 82, Olympic-ro,Songpa-ku, Seoul, 05556, KR)
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