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. 05, 2013
Filed:
Mar. 28, 2009
Nikolai Kajakine, Helsinki, FI;
Arne Birger Husth, Hellerup, DK;
Nikolai Kajakine, Helsinki, FI;
Arne Birger Husth, Hellerup, DK;
Nokia Corporation, Espoo, FI;
Abstract
A received signal is amplified in an amplifier to create an amplified signal. The amplified signal is then filtered. The power of permanent common pilot sub-carriers present in the filtered amplified signal is calculated. A wideband power measurement is determined based on the amplified signal, and a narrowband power measurement is determined based on the filtered amplified signal. The first gain for the amplifier is controlled in dependence on the calculated power of the permanent common pilot sub-carriers, the wideband power measurement and the narrowband power measurement. The power of the permanent common pilot sub-carriers may be calculated in the frequency domain to mitigate fast switching of the controlled first gain. The filtered amplified signal may be amplified in a further amplifier, and a second gain can be controlled for the further amplifier in dependence on the calculated power of the permanent common pilot sub-carriers, the wideband power measurement and the narrowband power measurement.