Method for interference source identification

The invention relates to a, and better for mobile phone AND radio network is respectively one or more noise supply method in mobile wireless system. Received signal (r) is a signals and multiple unwanted signal terminals; the unwanted signal with the is the main unwanted signal, and signal a known training sequences (TK1, TK2,…). The estimate carrier and subtracts the pallet is received signal (r), obtaining of unwanted signal (s). The signal and known training sequences (TKj, j=0,1,2,…, 7), related obtaining with a unwanted data related training sequence. To the invention, which is in training sequences to determine the noise source (BS1) identification code (BCC). Wires, an Jyriki to fix the candidates the cell from the identification code (BCC) and are (CA1, CA2,) and with a interfering the frequency time offset frequency of the candidate for (t1, t2,…Digital 7). Finally, investigation one or more frequencies (fa, fb) for provided with a unwanted signal same time displaces (t0), finally with an optimum matching at least candidate (CA3) is externally wherein frequency of the noise supply.