Wireless communication device and time and frequency synchronization method of the same

A wireless communication device, comprising:

• a storage module configured to store a plurality computer executable commands;
• and
• a processing module coupled to the storage module and configured to execute the commands to perform a time and frequency synchronization method that comprises:
• receiving a wireless signal from a base station;
• delaying the wireless signal on a time domain and correlating the delayed wireless signal with the original wireless signal to generate a delayed and correlated signal;
• delaying a plurality of primary symbols related to a primary synchronization signal and correlating the delayed primary symbols with the original primary symbols to generate a plurality of delayed and correlated primary symbols;
• correlating the delayed and correlated signal and the delayed and correlated primary symbols to identify a position of the primary synchronization signal based on a primary peak value;
• and
• identifying the position of the secondary synchronization signal based on the position of the primary synchronization signal.