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:
Oct. 09, 2018

Filed:

Oct. 08, 2014
Applicant:

Ntt Docomo, Inc., Tokyo, JP;

Inventors:

Jiyun Shen, Tokyo, JP;

Satoshi Suyama, Tokyo, JP;

Yukihiko Okumura, Tokyo, JP;

Assignee:

NTT DOCOMO, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04L 5/00 (2006.01); H04L 27/26 (2006.01); H04W 56/00 (2009.01); H04W 72/12 (2009.01); H04B 1/00 (2006.01); H04B 7/06 (2006.01); H04W 88/06 (2009.01);
U.S. Cl.
CPC ...
H04L 5/0007 (2013.01); H04B 1/0067 (2013.01); H04L 5/005 (2013.01); H04L 27/2636 (2013.01); H04W 56/0035 (2013.01); H04W 72/048 (2013.01); H04W 72/1215 (2013.01); H04B 7/0617 (2013.01); H04W 88/06 (2013.01);
Abstract

To suppress complication of transmission/reception processing even in the case where a user terminal supports a plurality of bandwidths, or the case where the terminal concurrently connects to a plurality of radio communication systems with different usage frequencies, a user terminal, which communicates with a radio base station for forming a wide-area cell and anther radio base station for forming a narrow-area cell in a radio communication system where the narrow-area cell is provided inside the wide-area cell, is provided with a reference signal generating section that generates a sampling frequency of a baseband signal of the wide-area cell as a reference signal, a frequency adjusting section that converts a frequency of the reference signal by n/m times, and a baseband processing section that uses a frequency subjected to frequency conversion as a sampling frequency of a baseband signal of the narrow-area cell.


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