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. 24, 2009
Filed:
Jun. 01, 2005
Myung-kwang Byun, Suwon-si, KR;
Jae-ho Jeon, Seongnam-si, KR;
Seung-joo Maeng, Seongnam-si, KR;
Jeong-heon Kim, Anyang-si, KR;
Hee-sang Seo, Seoul, KR;
Jeong-tae OH, Yongin-si, KR;
Myung-Kwang Byun, Suwon-si, KR;
Jae-Ho Jeon, Seongnam-si, KR;
Seung-Joo Maeng, Seongnam-si, KR;
Jeong-Heon Kim, Anyang-si, KR;
Hee-Sang Seo, Seoul, KR;
Jeong-Tae Oh, Yongin-si, KR;
Abstract
An apparatus and method for transmitting uplink fast feedback information using a fast feedback channel in an orthogonal frequency division multiple access (OFDMA) communication system. A channel encoder selects information data for uplink fast feedback information, and determines a codeword from a pre-determined codeword set corresponding to the selected information data. A non-coherent modulator chooses transmission symbols by performing orthogonal modulation according to the determined codeword based on a predetermined modulation pattern, and maps the chosen symbols into sub-carriers. An inverse fast Fourier transform (IFFT) block performs an inverse fast Fourier transform (IFFT) on the mapped symbols and transmits the IFFT processed mapped symbols.