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:
Nov. 01, 2011

Filed:

Jun. 20, 2008
Applicants:

Yousuke Iizuka, Yokosuka, JP;

Yukihiko Okumura, Yokosuka, JP;

Inventors:

Yousuke Iizuka, Yokosuka, JP;

Yukihiko Okumura, Yokosuka, JP;

Assignee:

NTT DoCoMo, Inc., Chiyoda-ku, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 7/00 (2006.01); H04Q 12/11 (2006.01); H04M 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

To provide a mobile station and a transmission power control method in the mobile station, which are capable of improving the power saving characteristic associated with the transmission power control in the mobile station under a condition in which the transmit diversity is applied. The transmission power of feedback information (: FBI) is controlled on the basis of control information (TPC) transmitted through a sub-information downlink channel () from a base station () as a main branch, only when it is determined by a communication method determining sectionthat a cosed loop transmit diversity can be applied (step S: Yes), and when it is determined by a communication base station determining sectionthat sub-information downlink channels () and sub-information uplink channels () are connected to a plurality of base stations (step S: Yes).


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