Patent ID: 8078213

Claim:
A method for controlling, in a mobile telephone, a ratio SNR S of a received useful data signal to interference, the method comprising: performing in the mobile telephone the following: obtaining an estimate of the ratio SNR S ; comparing the obtained estimate of the ratio SNR S with a predetermined target value SNR Z ; and generating, as a result of said comparison, power control signals, and transmitting said power control signals to a base station, said power control signals instructing said base station to adjust a transmission power of signals intended for reception by said mobile telephone; wherein the obtaining of the estimate of the ratio SNR S includes: despreading a received signal using a code assigned to said mobile telephone to obtain a despread signal; demodulating said despread signal to obtain a demodulated signal; respreading said demodulated signal to obtain a respread signal; and comparing said respread signal with said received signal.