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:
Apr. 18, 2017

Filed:

Oct. 03, 2011
Applicants:

Daisuke Nishikawa, Tokyo, JP;

Kazuaki Takeda, Tokyo, JP;

Tetsushi Abe, Tokyo, JP;

Yoshihisa Kishiyama, Tokyo, JP;

Inventors:

Daisuke Nishikawa, Tokyo, JP;

Kazuaki Takeda, Tokyo, JP;

Tetsushi Abe, Tokyo, JP;

Yoshihisa Kishiyama, Tokyo, JP;

Assignee:

NTT DOCOMO, INC., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04W 72/04 (2009.01); H04W 48/08 (2009.01); H04L 5/00 (2006.01); H04W 28/18 (2009.01); H04W 88/08 (2009.01);
U.S. Cl.
CPC ...
H04W 72/0446 (2013.01); H04L 5/0048 (2013.01); H04L 5/0091 (2013.01); H04W 48/08 (2013.01); H04W 72/04 (2013.01); H04W 72/0413 (2013.01); H04W 28/18 (2013.01); H04W 88/08 (2013.01);
Abstract

It is an object of the present invention to adequately report the SRS transmission timing and SRS parameters to a mobile terminal apparatus, when an aperiodic SRS is adopted, and efficiently use radio resources to be used for SRS transmission. A radio base station apparatus that reports SRS transmission control information to a mobile terminal apparatus and controls transmission of an SRS by the mobile terminal apparatus, and the radio base station apparatus has an SRS setting section that selects bit information to report to the mobile terminal apparatus, from a table having bit information to indicate not to trigger the SRS and bit information to indicate to trigger the SRS using a default SRS parameter, and a reporting section that reports the bit information for the mobile terminal apparatus using a downlink control channel.


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