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:
Jan. 27, 2009

Filed:

Sep. 30, 2003
Applicants:

Daisuke Kitazawa, Kawasaki, JP;

Lan Chen, Yokohama, JP;

Hidetoshi Kayama, Yokohama, JP;

Narumi Umeda, Yokohama, JP;

Inventors:

Daisuke Kitazawa, Kawasaki, JP;

Lan Chen, Yokohama, JP;

Hidetoshi Kayama, Yokohama, JP;

Narumi Umeda, Yokohama, JP;

Assignee:

NTT DoCoMo, Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 7/00 (2006.01); H04B 7/185 (2006.01); H04Q 7/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

In a radio communication system where, concerning the maximum allowable delay and the reception error rate as required values for QoS, a first mobile station group of which the maximum allowable delay is less than a reference value and the reception error rate is a reference value or more, and a second mobile station group of which the maximum allowable delay is a reference value or more and the reception error rate is less than a reference value coexist, the base station sets the transmission power margin for a mobile station of the first mobile station group to be higher than the transmission power margin for a mobile station of the second mobile station group, and a mobile station of the first mobile station group sets the transmission power margin to be higher than the transmission power margin of a mobile station of the second mobile station group.


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