Patent ID: 8059963

Claim:
A wired relaying method in a Time Division Duplexing (TDD) relay remote station which shares an amplifier for uplink and downlink operations, the wired relaying method comprising: a downlink operation mode in which a downlink optical signal is input from a base station and is output as a downlink RF signal by an antenna received via the amplifier; and an uplink operation mode in which an uplink Radio Frequency (RF) signal is received via the antenna and is transmitted to the base station via the amplifier, wherein the amplifier is configured to share the uplink and downlink operation modes by means of RF switches positioned in front of and at the rear of the amplifier, the amplifier comprising: a Low-Noise Amplifier (LNA) for low-noise amplifying the uplink RF signal; and a High-Power Amplifier (HPA) for high-power amplifying the low-noise.