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. 22, 2011
Filed:
Mar. 11, 2004
Ulf Skarby, Lidingo, SE;
BO Hedberg, Kista, SE;
Ulf Skarby, Lidingo, SE;
Bo Hedberg, Kista, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A method, device and system for reducing the number of feeders () between a radio base station () and an antenna diversity arrangement () at which RF signals of the same frequency are received. In a tower mounted amplifier () individual RF signals from some or all of the antennas are frequency converted into intermediate frequency (IF) signals on mutually different intermediate frequencies which are combined and forwarded to the radio base station on a reduced number of feeders. In the radio base station the combined signal is split into individual signals amongst which the IF signals are frequency transformed to a signal suitable for diversity processing.