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. 13, 2020

Filed:

Jun. 27, 2013
Applicant:

Ntt Docomo, Inc., Tokyo, JP;

Inventors:

Yoshihisa Kishiyama, Tokyo, JP;

Kazuaki Takeda, Tokyo, JP;

Satoshi Nagata, Tokyo, JP;

Takehiro Nakamura, Tokyo, JP;

Hideaki Takahashi, Tokyo, JP;

Sadayuki Abeta, Tokyo, JP;

Hiroyuki Ishii, Palo Alto, CA (US);

Assignee:

NTT DOCOMO, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 5/00 (2006.01); H04J 11/00 (2006.01); H04J 13/16 (2011.01); H04W 36/00 (2009.01); H04W 36/04 (2009.01); H04W 16/32 (2009.01); H04W 84/04 (2009.01); H04W 88/02 (2009.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H04L 5/0073 (2013.01); H04J 11/0069 (2013.01); H04J 13/16 (2013.01); H04L 5/005 (2013.01); H04L 5/0032 (2013.01); H04W 36/0069 (2018.08); H04W 36/04 (2013.01); H04J 2211/001 (2013.01); H04W 16/32 (2013.01); H04W 84/045 (2013.01); H04W 88/02 (2013.01); H04W 88/08 (2013.01);
Abstract

A system for supporting smooth mobility of a mobile terminal apparatus between a plurality of local areas that are arranged in a wide area is disclosed. The system includes a wide area base station apparatus that covers a wide area, a local area base station apparatus that covers a local area arranged in the wide area, and a mobile terminal apparatus that can communicate with the wide area base station apparatus and the local area base station apparatus, and is configured to scramble a data signal and a reference signal by a scrambling sequence that is common between a plurality of local areas in communication between the local area base station apparatus and the mobile terminal apparatus.


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