The present invention relates to an apparatus and method of acquiring initial synchronization of a terminal in a mobile communication system. According to an exemplary embodiment of the present invention, one or more auto-correlation values of a preamble constituting a signal that is received from a...http://www.google.com.hk/patents/US7986757?utm_source=gb-gplus-share專利 US7986757 - Apparatus and method of acquiring initial synchronization of terminal in mobile communication system