METHOD FOR OBTAINING FINE-TIME SYNCHRONIZATION OF SIGNAL IN TIME DIVISION MULTIPLE ACCESS COMMUNICATIONS

摘要

The present invention provides a method for obtaining fine-time synchronization of a signal in time division multiple access (TDMA) communications. According to the present invention, the method for obtaining fine-time synchronization is performed by a communications apparatus and comprises: a step of obtaining first time synchronization using a synchronization symbol; a step of obtaining a predetermined number of data symbols in a region adjacent to the synchronization symbol using the obtained first time synchronization, and demodulating the obtained data symbols; and a step of obtaining second fine-time synchronization using the synchronization symbol and the demodulated data symbols. Accordingly, the present invention can provide a method for accurately calculating the time synchronization of a signal received by a base station. In addition, the present invention can prevent the degradation of received-signal demodulation performance using accurate time synchronization obtained by the base station, thereby improving signal quality. Due to the accurate time synchronization obtained by the base station, the present invention can also extend a signal coverage range for transmitting/receiving signals between the base station and a terminal.;COPYRIGHT KIPO 2015