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:
Jul. 21, 2020

Filed:

Sep. 29, 2017
Applicant:

Ntt Docomo, Inc., Tokyo, JP;

Inventors:

Yoshihisa Kishiyama, Tokyo, JP;

Anass Benjebbour, Tokyo, JP;

Kazuaki Takeda, Tokyo, JP;

Assignee:

NTT DOCOMO, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04W 52/24 (2009.01); H04W 24/02 (2009.01); H04W 16/18 (2009.01); H04B 17/21 (2015.01); H04W 52/14 (2009.01); H04W 52/32 (2009.01); H04B 17/318 (2015.01); H04W 16/32 (2009.01); H04W 48/10 (2009.01); H04W 52/50 (2009.01); H04L 5/00 (2006.01); H04L 1/00 (2006.01);
U.S. Cl.
CPC ...
H04W 52/242 (2013.01); H04B 17/21 (2015.01); H04W 16/18 (2013.01); H04W 24/02 (2013.01); H04W 52/241 (2013.01); H04B 17/318 (2015.01); H04L 1/0026 (2013.01); H04L 5/0057 (2013.01); H04W 16/32 (2013.01); H04W 48/10 (2013.01); H04W 52/143 (2013.01); H04W 52/146 (2013.01); H04W 52/247 (2013.01); H04W 52/325 (2013.01); H04W 52/50 (2013.01);
Abstract

A radio communication method is provided in which a local area base station apparatus, arranged in a wide area where a first carrier frequency is used and forming a local area that is narrower than the wide area, transmits a downlink signal, using a second carrier frequency, which belongs to a different frequency band from the first carrier frequency and which has a wider bandwidth than the first carrier frequency, the local area base station apparatus transmits a detection signal that is used to detect the local area base station apparatus in the mobile terminal apparatus, and the local area base station apparatus transmits the downlink signal for the mobile terminal apparatus with transmission power that is determined based on the path loss of the detection signal received in the mobile terminal apparatus.


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