Determination of a reference value for automatic gain control of a receiver communicating with a packet switched communication network
AssigneeNokia Corporation
InventorJari Ruohonen
Life of this patent
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Abstract
A device and a method for determining a reference level for automatic gain control of a radio frequency signal to be received, particularly having a varying strength, in which method radio blocks are received on a logical general packet data traffic channel of a signal, which radio blocks have been transmitted with a predetermined transmission power level and by using a predetermined way of controlling the transmission power level. In the invention, said reference level is continuously determined on the basis of correctly received or valid radio blocks, wherein the reference level is corrected on the basis of the signal strength measured during the reception of each valid radio block.
Claims33
A method for determining a reference level for automatic gain control of a radio frequency signal to be received, particularly having a varying strength, in which method radio blocks are received on a logical packet data traffic channel of a signal, which radio blocks have been transmitted with a predetermined transmission power and by using a predetermined way of controlling the transmission power, wherein said reference level is continuously determined on the basis of correctly received, i.e., valid radio blocks, wherein the reference level is corrected on the basis of the signal strength measured during the reception of each valid radio block.
A device for determining a reference level for automatic gain control of a radio frequency signal to be received, particularly having a varying strength, which device comprises means for receiving, on a logical packet data traffic channel of a signal, radio blocks which have been transmitted with a predetermined transmission power and by using a predetermined way of controlling the transmission power, wherein the device comprises means for continuous determination of said reference level on the basis of correctly received. i.e., valid radio blocks, wherein said means are arranged to correct the reference level on the basis of the signal strength measured during the reception of each valid radio block.
Dependencies are inferred from the claim text.