METHOD AND SYSTEMS FOR PERFORMING CELL SEARCH

Techniques for performing a cell search for the presence of multiple cells in a frequency band are described. Each frequency band is segmented into sub-bands, each sub-band covering more than one raster scan (e.g., 100 kHz). Each segment has a predetermined center frequency for RF tuning. The number of tunable RF center frequencies can be equal to the number of segments in a frequency band. The techniques include obtaining IQ signals in a digital domain at a predefined RF center frequency. Further, the techniques include computing a matched filtering of PSS sequence with IQ samples of sub-bands with a predefined and predetermined waveform through matched filtering, and averaging correlations for smoothing the peaks that exceed a predetermined threshold to detect or reject the presence of a cell.