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:
Sep. 08, 2009
Filed:
May. 31, 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;
Samsung Electronics Co., Ltd, , KR;
Abstract
A method and apparatus for transmitting uplink acknowledge information (ACK) in a communication system using an orthogonal frequency division multiple access (OFDMA) scheme. The method includes receiving a data bit for the uplink ACK; outputting codewords corresponding to the data bit; performing quadrature phase shift keying (QPSK) modulation on symbols for ACK vector indexes corresponding to the codewords for the received data bit; performing inverse fast Fourier transform (IFFT) on a transmission signal having subcarrier clusters to which the modulated transmission symbols are allocated; and transmitting the IFFT-processed transmission signal.