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:
Dec. 25, 2001
Filed:
Apr. 10, 2000
Toni Neffling, Espoo, FI;
Nokia Networks Oy, Espoo, FI;
Abstract
The invention relates to a control method and a control arrangement which comprises a feedforward power amplifier (,), which receives and amplifies a signal and which on amplifying the signal causes non-linearities to the signal. The control arrangement also comprises adjusting members (,) and adaptation means (,), which form an adaptation factor and control the operation of the adjusting means (,) by means of the adaptation factor by adapting the amplitudes and phases of signal propagating along different signal paths to one another. The control arrangement further comprises control means (,), which produce information of the gain required by the power amplifier (,), said control means (,) ordering the adaptation means (,) to adjust the adaptation factor in advance on the basis of the received information to correspond to the gain of the power amplifier (,), which enables adaptation of the signal also when the input power level changes rapidly.