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. 08, 2020

Filed:

Jul. 16, 2019
Applicant:

Kddi Corporation, Tokyo, JP;

Inventors:

Hailan Peng, Fujimino, JP;

Toshiaki Yamamoto, Fujimino, JP;

Xiaoqiu Wang, Fujimino, JP;

Assignee:

KDDI Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04W 76/15 (2018.01); H04W 72/08 (2009.01); H04J 1/00 (2006.01); H04L 5/00 (2006.01); H04W 92/20 (2009.01);
U.S. Cl.
CPC ...
H04W 72/0413 (2013.01); H04J 1/00 (2013.01); H04L 5/006 (2013.01); H04L 5/0053 (2013.01); H04L 5/0091 (2013.01); H04W 72/04 (2013.01); H04W 72/0426 (2013.01); H04W 72/0453 (2013.01); H04W 72/085 (2013.01); H04W 76/15 (2018.02); H04W 92/20 (2013.01);
Abstract

In a wireless communication system in which when connecting one terminal apparatus to a base station apparatus and another base station apparatus, the other base station apparatus selects a frequency band to be used for control channels transmitted from the terminal apparatus to the other base station apparatus from a plurality of frequency bands usable by the other base station apparatus, and notifies the terminal apparatus of the selected frequency band, the base station apparatus acquires from the terminal apparatus information about radio quality of a signal received from the other base station apparatus for at least one frequency band out of the plurality of frequency bands, extracts a portion of frequency bands out of the plurality of frequency bands based on the acquired information about radio quality, and notifies the other base station apparatus of information representing the portion of frequency bands.


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