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:
Sep. 12, 2017
Filed:
Oct. 02, 2014
Ntt Docomo, Inc., Tokyo, JP;
Takahiro Kubo, Tokyo, JP;
Takahiro Asai, Tokyo, JP;
Jiyun Shen, Tokyo, JP;
Satoshi Suyama, Tokyo, JP;
Yukihiko Okumura, Tokyo, JP;
NTT DOCOMO, INC., Tokyo, JP;
Abstract
To reduce a bandwidth required for an optical transmission path () in a base station system including an RAU () for performing MIMO transmission using a plurality of antenna elements and a BBU (), in a communication control method of the present invention, the BBU () transmits antenna weight coefficient information indicative of antenna weight coefficients of a plurality of antenna elements () and a transmission signal, and the RAU () multiplies the transmission signal from the BBU () by each of the antenna weight coefficients to generate weighted signals of the plurality of antenna elements (), and transmits the weighted signals from the plurality of antenna elements ().