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.
Patent No.:
Date of Patent:
Oct. 15, 2013
Filed:
Jan. 07, 2011
Rintaro Katayama, Fujisawa, JP;
Satoshi Tamaki, Yokohama, JP;
Tomonori Yamamoto, Fujisawa, JP;
Hirotake Ishii, Yokohama, JP;
Shigenori Hayase, Yokohama, JP;
Rintaro Katayama, Fujisawa, JP;
Satoshi Tamaki, Yokohama, JP;
Tomonori Yamamoto, Fujisawa, JP;
Hirotake Ishii, Yokohama, JP;
Shigenori Hayase, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A communication device includes pilot signal sending part and transmit power control part and holds a criterion value indicating target channel quality for mobile stations within the area covered by the base station. It creates quality data from reports from one or plural mobile stations, stores the quality data, creates a first representative value indicating average channel quality for the mobile station(s) from the stored quality data, and changes the transmit power depending on the result of comparison between the first representative value and the criterion value. It creates a second representative value indicating distribution of low channel quality from the stored quality data and updates the criterion value depending on the result of comparison between the second representative value and the criterion value.