Wireless communication device with synchronization signal detector and cell search method thereof

摘要

A wireless communication method comprises: receiving a wireless signal having a plurality of frames, each of the plurality of frames having a plurality of subframes, and a current frame initially being a first one of the frames; a) performing a correlation calculation between each of the subframes of the current frame and a plurality of reference signals to generate a plurality of current correlation values; b) respective accumulation of the current correlation values with previous correlation values to produce current cumulative values each corresponding to the plurality of subframes of the current frame; determining whether an effective synchronization signal is being detected based on the current cumulative values; and setting the current frame to a next one of the frames, setting the previous correlation values to the current correlation values, and determining whether to proceed to step a) based on the determination of whether the effective synchronization signal is detected.