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. 21, 2003
Filed:
Sep. 24, 1999
Applicant:
Inventors:
Yoshiharu Doi, Gifu, JP;
Toshinori Iinuma, Gifu, JP;
Assignee:
Sanyo Electric Co., Ltd., Moriguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 7/20 ;
U.S. Cl.
CPC ...
H04Q 7/20 ;
Abstract
An adaptive array multiplies a radio signal received in four antennas by a received weight vector thereby separating a signal from each user. On the basis of the received signal and the received weight vector, a received power measuring circuit derives radio signal strength from each terminal. A transmit weight vector control part controls a transmit weight vector in response to the receive radio signal strength, i.e., the distance between a base station and each terminal, and reduces undesired interference with another cell by adjusting transmission power.