RF REPEATER AND THEREOF CONTROLLING METHOD FOR TTD(TIME DIVISION DUPLEXING) COMMUNICATION USING THE RF SIGNAL DETECTING TIME CONTROL AND SWITCHING TIME CONTROL

摘要

A TDD(Time Division Duplex) RF repeater using RF signal detection time control and switching time control and a relay control method thereof are provided to simply and exactly perform switching time control according to a switch on/off delay algorithm without the loss of Tx data due to an error in a route switch even though an MS(Mobile Station) is in a shadow area. A TDD RF repeater(10) consists of a donor part(100), a service part(200) and a relay part(300). The relay part(300) comprises a downlink signal detection part(304), an uplink signal detection part(309), and the first delay(303). The downlink signal detection part(304) detects a signal, received to and inputted from the donor part(100), on a downlink signaling route to relay the inputted signal to the service part(200) and executes switching control for a service-side route switch(307) to enable downlink mode. The uplink signal detection part(309) detects a signal, received to and inputted from the service part(200), on an uplink signaling route to relay the inputted signal to the donor part(100) and executes switching control for a donor-side route switch(301) to enable uplink mode. The first delay(303) delays time for an MS signal of a BS area, which is detected at the downlink signal detection part(304), so that the uplink signaling route can be activated prior to the downlink signaling route as the service part(200) detects an MS signal of a service area.