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:
Mar. 28, 2006
Filed:
Oct. 03, 2000
Kazuyuki Miya, Kawasaki, JP;
Kazuyuki Miya, Kawasaki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
A radio base station apparatus may include two diversity antennas spaced apart by a distance that allows space diversity, with each diversity antenna functioning as an adaptive array antenna. Each diversity antenna has a corresponding transmitter that includes a calculator that calculates a transmission weight from one of (i) a reception weight determined based on an uplink signal and (ii) direction of arrival information. Each transmitter also has a multiplier that multiplies only a transmission signal for a channel to a specific user by the transmission weight. Also, each transmitter has a transmit power controller that controls the transmit power of the transmission signal, multiplied by the transmission weight, in accordance with a transmit power control signal.