RELAY SYSTEM FOR MOBILE COMMUNICATION SERVICE BASED ON TDD

摘要

The present invention relates to a relay system for a mobile communications service based on time division duplex, capable of precisely synchronizing a switching timing of a downlink with a switching timing of an uplink and being actively adaptive even when the switching timing is changed. In the relay system, a synchronization module analyzes a signal frame received from a base station and extracts a synchronization signal for switching between downlink and uplink intervals which are divided according to a time division scheme. A relay module performs switching between the downlink and uplink intervals based on the synchronization signal extracted by the synchronization module. Therefore, the relay system receives the signal frame from the base station and transmits the signal frame to a user device during the downlink interval, and transmits the signal received from the user device to the base station during the uplink interval.