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. 06, 2015
Filed:
Feb. 26, 2013
Yasunori Kato, Tokyo, JP;
Akihiro Okazaki, Tokyo, JP;
Yasunori Kato, Tokyo, JP;
Akihiro Okazaki, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A radio transmission apparatus includes a plurality of transmission antennas, a start symbol generating unit that generates a start symbol as a reference signal during the start of differential coding, a differential coding unit (a differential coding unit, a transmission-signal-power calculating unit, and a 1/square root operation unit) that subjects a transmission symbol, to which information bits are mapped, to differential coding and generates a symbol after differentiation, and a space-time coding unit that subjects the start symbol or the symbol after differentiation to space-time coding and generates signals to be transmitted from transmission antennas. The differential coding unit determines, on the basis of electric power of the start symbol or electric power of the symbol after differentiation generated last time, electric power of the symbol after differentiation generated in the current differential coding processing.