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:
Nov. 18, 2014
Filed:
Dec. 01, 2011
Hajime Kanzaki, Hiratsuka, JP;
Kenzaburo Fujishima, Kokubunji, JP;
Mikio Kuwahara, Yokohama, JP;
Katsuhiko Tsunehara, Hachioji, JP;
Hajime Kanzaki, Hiratsuka, JP;
Kenzaburo Fujishima, Kokubunji, JP;
Mikio Kuwahara, Yokohama, JP;
Katsuhiko Tsunehara, Hachioji, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Provided is a wireless communication system which includes a wireless communication unit using plural frequency bands and plural antennas. The system changes the transmission power of each antenna, based on the interference of each of the frequency bands from the neighbor base station along the antenna direction. The system estimates the number of antennas necessary for transmission in response to a user requirement, and determines a necessary antenna in accordance with the antenna direction in which the terminal is located, and further changes the transmission power of each antenna.