WIRELESS RELAY SYSTEM BETWEEN CIRCUIT SERVICE DEVICES USING HALF DUPLEX TYPE

摘要

PURPOSE: A wireless relay system between circuit service devices using a half duplex type is provided to relay a communication of a wireless link of a circuit service system using a packet service type equipment using the half duplex type. CONSTITUTION: A master(1) and a slave(3) connect to the first and second circuit service devices(5,7), respectively. The master(1) is synchronized to a reference clock for packetizing data of the first circuit service device(5), transmitting the packet to the slave(3) at a uniform time interval, and receiving a packet from the slave(3) at a time different from the time transmitted to the slave(3). The slave(3) receives the packet of the master(1), extracts reference clock information from a receiving clock, and generates a clock synchronized to the reference clock to be synchronized with the master(1). The slave(3) transmits the packet to the master(1) at the time different from the packet transmission time of the master(1).