Method and Apparatus for Controlling Parameters of an Antenna Tuner

摘要

The present invention discloses a control method, an apparatus and a computer program for antenna tuner parameters of a radio transceiver. The updating moments of the antenna tuner parameters are selected depending on predominant interference status in the receiver. Based on the sensed interference level, an update decision is made whether the external interference is below a selected threshold value. The parameter change is executed only in low interference situations. In high interference levels (low SIR), the antenna tuner parameters are calculated but they are not enforced in the antenna tuner. The control process for updating the antenna tuner parameters is continuous in given time intervals.

主权项

1. A method for controlling parameters of an antenna tuner of a transceiver, comprising:
measuring a forward RF signal and a reverse RF signal of the transceiver; detecting an external interfering signal level in the reverse RF signal; making a parameter update decision by a calculation algorithm when the detected interfering signal level is below an interference threshold value; calculating new parameters for the antenna tuner which would optimize impedance matching between the antenna and the transceiver in case the parameters would be in force; and updating the parameters of the antenna tuner to the calculated parameters when the parameter update decision is in force.