Method and System for Generating Switching Timing Signal for Separating Transmitting and Receiving Signal in Optical Repeater of Mobile Telecommunication Network Using TDD and ODFM Modulation

The present invention relates to a switching timing signal generating method and system for separating a transmission signal in an optical repeater of a mobile using a TDD scheme and an OFDM modulation communication network. The invention, TDD (Time Division Duplex) scheme and OFDM (Orthogonal Frequency Division Multiplexing), and using a modulation scheme, in the optical repeater of a mobile communication system including an (Access Point), (Access Terminal) AT AP and optical repeater further comprising: in the switching timing signal generating process for separating a transmission signal, (a) passing the RF signal received from the AP to a remote of the optical repeater via a main donor of the optical repeater; (B) a step of extracting a portion of the RF signal transmitted to the switching timing signal generating circuit of the remote from the coupler of the remote; (C) Correlation step of the reference signal generated by the RF signal and the switching timing signal generating circuit extracted from the coupler; (D) determining a frame start position of the RF signal by analyzing the Correlation results; (E) calculating a starting point of a downlink signal and an uplink signal included in the RF signal on the basis of the frame start position; (F) transferring a switch of the remote generates a switching timing signal by using starting point information of the downlink signal and the uplink signal; And (g) wherein the switch is a transmission signal in an optical repeater of a mobile using a TDD scheme and the OFDM modulation method comprising the steps of transmitting to by the switching timing signal separates the downstream signal and the upstream signal communication network It provides a switching timing signal generating method and system for separation. According to the invention, TDD manner as in the optical repeater itself, in a mobile communication network using the OFDM scheme separates the downlink signal and an uplink signal and controlling a switch by generating switching timing signals to selectively provide a path for each signal the effect can be. TDD, OFDM, HPi, an optical repeater, the switching timing, Correlation, uplink, downlink