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:
Jul. 22, 2008
Filed:
Apr. 07, 2000
Ilkka Keskitalo, Oulu, FI;
Juha Ylitalo, Oulu, FI;
Marcos Katz, Oulu, FI;
Nokia Coporation, Espoo, FI;
Abstract
The present invention relates to a method and system for transmitting a transmission signal from an antenna array () to a receiving means () of a wireless communication system, wherein a signal quality measurement is performed at the receiving means () for predetermined antennas or beams of said antenna array (). Based on a feedback information derived from the signal quality measurement, at least two of the predetermined antennas or beams of the antenna array () are selected. The selected antennas or beams are used for transmitting said transmission signal according to a transmit diversity or beamforming scheme. Thus, spectral efficiency and diversity gain can be enhanced by using only selected ones of the predetermined antennas or beams.