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. 16, 2010
Filed:
Oct. 11, 2005
Sung-ryul Yun, Suwon-si, KR;
Chan-byoung Chae, Seoul, KR;
Hong-sil Jeong, Suwon-si, KR;
Dong-seek Park, Yongin-si, KR;
Won-il Roh, Yongin-si, KR;
Jae-yoel Kim, Gunpo-si, KR;
Pan-yuh Joo, Yongin-si, KR;
Jeong-tae OH, Yongin-si, KR;
Kyun-byoung Ko, Goyang-si, KR;
Sung-Ryul Yun, Suwon-si, KR;
Chan-Byoung Chae, Seoul, KR;
Hong-Sil Jeong, Suwon-si, KR;
Dong-Seek Park, Yongin-si, KR;
Won-Il Roh, Yongin-si, KR;
Jae-Yoel Kim, Gunpo-si, KR;
Pan-Yuh Joo, Yongin-si, KR;
Jeong-Tae Oh, Yongin-si, KR;
Kyun-Byoung Ko, Goyang-si, KR;
Samsung Electronics Co., Ltd, , KR;
Abstract
A transmitter for minimizing a PAPR in OFDM communication system. The transmitter includes: a precoder for coding input symbols so that a signal rotation is generated, and generating a complex vector including the coded symbols; an encoder for performing a frequency-space mapping for the symbols generated as the complex vector according to a predetermined scheme; a random mapper for randomly mapping the symbols for which the frequency-space mapping has been performed on a frequency plane through at least one transmit antenna; an Inverse Fast Fourier Transform (IFFT) unit for performing an IFFT for the symbols for which the frequency-space mapping has been performed; and a gradient algorithm unit for receiving IFFTed signals from the IFFT unit and reducing the PAPR.