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:
Feb. 12, 2002
Filed:
Aug. 31, 1998
Fujitsu Limited, Kawasaki, JP;
Abstract
In a CDMA wireless base station, signals that have been received by a plurality antenna elements of an array antenna on the receiving side are subjected to beam forming by a reception beam former to electrically form a plurality of uplink beams. Reception is carried out based upon the optimum beam (e.g., the beam for which the power is maximum) among the plurality of uplink beams. A transmission beam former for subjecting a transmission signal to beam forming is provided. Based upon whether an uplink reception signal is present or not, a controller performs control so as to carry out downlink beam forming, thereby forming a downlink transmission beam in a direction identical with that of the optimum uplink reception beam, or in such a manner that downlink beam forming is not carried out.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile