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:
Oct. 09, 2012
Filed:
Mar. 30, 2009
Takashi Yoshimoto, Osaka, JP;
Ryota Yamada, Osaka, JP;
Kazuyuki Shimezawa, Osaka, JP;
Naoki Okamoto, Osaka, JP;
Takashi Yoshimoto, Osaka, JP;
Ryota Yamada, Osaka, JP;
Kazuyuki Shimezawa, Osaka, JP;
Naoki Okamoto, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
Data errors are sufficiently corrected and desired transmission quality is obtained even when the time variation of fading is large in a multicarrier transmission scheme communication system to which HARQ is applied. A transmission apparatusis applied to a communication system in which the transmission apparatus and a reception apparatus perform automatic repeat request control therebetween, and has a subcarrier spacing setting sectionthat sets the subcarrier spacing used in transmitting a retransmission signal to be larger than the subcarrier spacing used in transmitting a first transmission signal, an IFFT sectionthat performs IFFT (Inverse Fast Fourier Transform) on an input signal based on the subcarrier spacing set in the subcarrier spacing setting section, and a transmission sectionthat transmits the first transmission signal and at least one retransmission signal.