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:
Mar. 23, 2021

Filed:

Jun. 05, 2019
Applicant:

Mitsubishi Electric Corporation, Chiyoda-ku, JP;

Inventors:

Mitsuru Mochizuki, Tokyo, JP;

Kuniyuki Suzuki, Tokyo, JP;

Masayuki Nakazawa, Tokyo, JP;

Noriyuki Fukui, Tokyo, JP;

Haruka Nozawa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 76/28 (2018.01); H04W 48/00 (2009.01); H04W 48/16 (2009.01); H04W 52/02 (2009.01); H04W 48/20 (2009.01); H04W 8/02 (2009.01); H04W 88/02 (2009.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H04W 76/28 (2018.02); H04W 8/02 (2013.01); H04W 48/00 (2013.01); H04W 48/16 (2013.01); H04W 48/20 (2013.01); H04W 52/02 (2013.01); H04W 88/02 (2013.01); H04W 88/08 (2013.01); Y02D 30/70 (2020.08);
Abstract

A narrow-bandwidth terminal device performs radio communication at a bandwidth narrower than a system bandwidth. The narrow-bandwidth terminal device in an idle state camps on a cell, and performs discontinuous reception of a signal transmitted from the cell. The terminal device also determines a reception condition of the signal, for example, whether the signal can be received. When it is determined that the signal cannot be received, the narrow-bandwidth terminal device moves out of a coverage area of the cell while continuing to perform the discontinuous reception. When it is determined that a discontinuous reception timer has been completed, the narrow-bandwidth terminal device continues to perform the discontinuous reception.


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