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:
Apr. 08, 2014
Filed:
Sep. 01, 2011
Jiyun Shen, Yokosuka, JP;
Yasuhiro Oda, Yokosuka, JP;
Tamami Maruyama, Yokohama, JP;
Tatsuo Furuno, Yokosuka, JP;
Tomoyuki Ohya, Yokohama, JP;
Jiyun Shen, Yokosuka, JP;
Yasuhiro Oda, Yokosuka, JP;
Tamami Maruyama, Yokohama, JP;
Tatsuo Furuno, Yokosuka, JP;
Tomoyuki Ohya, Yokohama, JP;
NTT DoCoMo, Inc., Tokyo, JP;
Abstract
A relay apparatus is disclosed for relaying a signal from a transmitter to a receiver in a MIMO (Multiple Input Multiple Output) based communication system, comprising: a power difference determination unit configured to determine a difference of reception levels between a direct wave and a relayed wave based on positional relationship among the transmitter, the relay apparatus and the receiver, the direct wave traveling from the transmitter to the receiver without the relay apparatus, the relayed wave traveling from the transmitter to the receiver via the relay apparatus; a gain determination unit configured to determine an amplification gain of the relay apparatus to make the difference smaller; and a transmitting unit configured to amplify the signal from the transmitter at the determined amplification gain and transmit the amplified signal to the receiver.