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:
Mar. 13, 2012
Filed:
Nov. 10, 2005
Jun-woo Kim, Daejeon, KR;
Su-chang Chae, Daejeon, KR;
Young-ha Lee, Daejeon, KR;
Eon-young Hong, Daejeon, KR;
Youn-ok Park, Daejeon, KR;
Jun-Woo Kim, Daejeon, KR;
Su-Chang Chae, Daejeon, KR;
Young-Ha Lee, Daejeon, KR;
Eon-Young Hong, Daejeon, KR;
Youn-Ok Park, Daejeon, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Electronics and Telecommunications Research Institute, Daejeon-si, KR;
KT Corporation, Seongnam-si, KR;
SK Telecom Co., Ltd., Seoul, KR;
KTFreetel Co., Ltd., Seoul, KR;
Hanaro Telecom, Inc., Seoul, KR;
Abstract
A subcarrier allocating apparatus allocating data to be transmitted to a plurality of orthogonal subcarriers in an orthogonal frequency division multiplexing (OFDM) system is provided. The apparatus includes a logical index generator generating a logical index for allocating a data subcarrier to a physical index, the logical index being included with only data subcarriers and the physical index indicating a location of a substantial subcarrier within a symbol, an intermediate index converter converting the logical index into an intermediate index by performing a given operation on the generated logical index and a pilot location constant, and a physical index converter converting the intermediate index into a physical index based on the number of data subcarriers on the left and right sides of a null subcarrier for insertion of a guard interval formed by the null subcarrier.