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.

Date of Patent:
Dec. 05, 2017

Filed:

Feb. 13, 2014
Applicant:

Ntt Docomo, Inc., Tokyo, JP;

Inventors:

Satoshi Nagata, Tokyo, JP;

Xiaolin Hou, Beijing, CN;

Chongning Na, Beijing, CN;

Atsushi Harada, Beijing, CN;

Assignee:

NTT DOCOMO, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04J 3/00 (2006.01); H04W 72/08 (2009.01); H04W 16/30 (2009.01);
U.S. Cl.
CPC ...
H04W 72/0446 (2013.01); H04J 3/00 (2013.01); H04W 16/30 (2013.01); H04W 72/042 (2013.01); H04W 72/0453 (2013.01); H04W 72/082 (2013.01);
Abstract

A radio base station capable of reducing the impact of interference and improving the efficiency of the use of radio resources even when different DL/UL configurations are employed between neighboring transmitting/receiving points is disclosed. The radio base station can communicate with user terminals via time division duplex and is able to change and control DL/UL configurations, has a subframe type determining section that classifies subframes into fixed subframes or flexible subframes, in accordance with the relationship between the DL/UL configurations that are employed in the radio base station and the DL/UL configurations that are employed in other radio base stations, and a frequency allocation control section that applies mutually different frequency allocation methods to the fixed subframes and the flexible subframes.


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