Patent ID: 7430184

Claim:
A method of regulating a transmission power of a master station in a transmission system as a function of an estimate of a signal/interference ratio in a slave station, comprising: separating a plurality of useful signals assigned to different communicating subscribers via orthogonal codes in the transmission system; in accordance with a selected one of the orthogonal codes, deriving a useful signal assigned to one of the different communicating subscribers from a signal received at least in the slave station from the master station, wherein the deriving of the useful signal from the received signal includes: despreading the received signal in accordance with a selected one of the orthogonal codes to produce a despread signal; subjecting the despread signal to data detection to produce a detected signal; and forming the useful signal by spreading the detected signal in accordance with the selected one of the orthogonal codes; and comparing the useful signal as a reference signal to the received signal in order to estimate the signal/interference ratio.