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:
Jun. 08, 2010
Filed:
Dec. 31, 2008
Shang-ho Tsai, Kaohsiung, TW;
Hsiao-lan Chiang, Miaoli County, TW;
Hsuan-yu Liu, Hsinchu County, TW;
Po-yuen Cheng, San Jose, CA (US);
Shang-Ho Tsai, Kaohsiung, TW;
Hsiao-Lan Chiang, Miaoli County, TW;
Hsuan-Yu Liu, Hsinchu County, TW;
Po-Yuen Cheng, San Jose, CA (US);
Mediatek Inc., Hsin-Chu, TW;
Abstract
A method for estimating a phase error existing in a receiver of a MIMO OFDM communications system is disclosed. The method includes executing Hermitian transpose on channel coefficient matrix of the MIMO OFDM communications system for generating Hermitian-transposed channel coefficient matrix, multiplying received signal matrix of the receiver with the Hermitian-transposed channel coefficient matrix for generating converted signals, summing products of the converted signals and complex conjugates of pilot signals corresponding to the converted signals for generating a sum result, and generating the phase error according to the sum result, the converted signals, and the complex conjugates of the pilot signals. The pilot signals are extracted from the received signal matrix.