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. 13, 2001
Filed:
Jan. 28, 1999
Applicant:
Inventor:
Martin Haardt, München, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/10 ;
U.S. Cl.
CPC ...
H04B 1/10 ;
Abstract
Space covariance matrices are first defined for a k,link from the base station to a wireless station and for a sum of further radio stations, that is to say, in the latter case, the interference for the k,link. In a second step, a beam forming vector w,is calculated for the link such that the signal-to-noise ratio in the receiver is maximized. A general intrinsic value problem is thereby solved without iterations. Transmission signals are then weighted with the beam forming vector for the link, and are supplied to the antenna elements for transmission. The method is suitable for TDMA/CDMA and CDMA transmission methods using smart antennas.