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:
Jul. 22, 2014
Filed:
Feb. 16, 2009
Satoshi Tamaki, Kokubunji, JP;
Mikio Kuwahara, Yokohama, JP;
Kenzaburo Fujishima, Kokubunji, JP;
Pinai Linwong, Tokyo, JP;
Katsuhiko Tsunehara, Hachioji, JP;
Satoshi Tamaki, Kokubunji, JP;
Mikio Kuwahara, Yokohama, JP;
Kenzaburo Fujishima, Kokubunji, JP;
Pinai Linwong, Tokyo, JP;
Katsuhiko Tsunehara, Hachioji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A discontinuous change in a transmission timing in a time domain, which is caused by a transmission timing adjustment processing of an OFDMA uplink or the like, brings about a discontinuous rotation of a signal phase in a frequency domain, resulting in reduced communication quality. A wireless communication system of the present invention allows the signal phase of the frequency domain in a receiving station to be continuous before and after the timing adjustment processings by controlling a signal sequence in a transmission signal after conversion in the time domain in synchronization with the timing adjustment processing.