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:
May. 11, 2004
Filed:
Nov. 09, 2000
Applicant:
Inventors:
Anders Järleholm, Sollentuna, SE;
Johan Jansson, Ljusterö, SE;
Tomas Stolt, Stockholm, SE;
Assignee:
Telefonaktlebolaget LM Ericsson (publ), Stockholm, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/38 ;
U.S. Cl.
CPC ...
H04B 1/38 ;
Abstract
Methods and base stations for controlling downlink power, especially in systems employing virtual cells, are described. By providing attenuators in each transmit signal processing chain, e.g., after upconverting to intermediate frequencies, downlink power control can be more finely tuned to different antenna elements.