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. 25, 2017
Filed:
Sep. 26, 2013
Applicant:
Hitachi Kokusai Electric Inc., Tokyo, JP;
Inventors:
Hiroyuki Akutagawa, Tokyo, JP;
Takehiko Kobayashi, Tokyo, JP;
Assignee:
Hitachi Kokusai Electric Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 1/06 (2006.01); H04B 1/00 (2006.01); H04B 7/02 (2017.01); H04B 3/00 (2006.01); H04B 1/04 (2006.01); H04B 1/06 (2006.01);
U.S. Cl.
CPC ...
H04L 1/0618 (2013.01); H04B 1/04 (2013.01); H04B 1/06 (2013.01); H04B 3/00 (2013.01); H04B 7/02 (2013.01); H04B 1/00 (2013.01);
Abstract
The present invention relates to a radio communication system that provides a transmission technique capable of suppressing degradation of communication quality even in an area other than an interference area of two base station radio waves. Further, the transmission technique and the communication system include implementation of a Differential Space-Time Block Coding (DSTBC) method relating to transmission diversity in radio communication utilizing, for example, base stations with transmission antennas that transmit respective sequence signals of the DSTBC.