Method of processing WCDMA signal timing offset for signal analyzing equipment

A method of processing a Wideband Code Division Multiple Access (WCDMA) signal timing offset for a signal analyzer, the method comprising:

• estimating an integer multiple timing offset of WCDMA baseband sample data corresponding to an amount of at least one frame;
• generating a frequency domain signal by performing a Fast Fourier Transform (FFT) calculation on an already-known reference signal which is Root Raised Cosine (RRC)-filtered at a sampling rate;
• generating at least one time-delayed frequency domain signal corresponding to at least one reference signal which is time delayed by a fractional timing offset estimation resolution;
• converting the at least one time-delayed frequency domain signal into at least one time domain signal by performing an Inverse Fast Fourier Transform (IFFT) calculation on the at least one time-delayed frequency domain signal and calculating at least one correlation between at least one input signal from a position of the integer multiple timing offset and the at least one time domain signal;
• and
• estimating a delay time leading to a maximum correlation of the at least one correlation as a fractional timing offset,
• wherein the at least one delayed time domain signal is obtained by a following equation,
• r(t−τ1^*i)=IFFT[R(ω)ej*ω*τ1^*i)]
• wherein τ1^=Tc/N1, I=0, . . . , N1, r′(t−τ1^*i), and N1 is a fractional timing offset estimation resolution.