Patent ID: 6801566
Filing Date: 2004-10-05
Classification: H04B,H04W

Abstract:
An apparatus for calculating a signal-to-interference ratio (SIR) for a forward power control operation in a mobile station for a mobile communication system, comprising:a PN (Pseudo Noise) despreader for multiplying a received signal by a unique PN code and outputting a PN despread signal; an orthogonal code despreader for multiplying the PN despread signal by a sync channel orthogonal code and a traffic channel orthogonal code and outputting each of first and second orthogonal code despread signals; an interference energy measurer for measuring interference energy by processing the first orthogonal code despread signal; a signal energy measurer for measuring signal energy by processing the second orthogonal code despread signal; and an SIR calculator for calculating SIR depending on the measured signal energy and interference energy.