Amplifier supporting multi mode and amplifying method thereof

Abstract

An amplifier and an amplifying method are provided. The amplifier includes: an amplifying unit amplifying and transferring a transmission target signal to a TDD switch; the TDD switch transferring a signal received from the amplifying unit to a filter unit when the amplifier operates in a TDD mode, and transferring a signal received from the filter unit to a duplex mode selection switch; the duplex mode selection switch transferring a signal received from the filter unit to a receiving side; and a controller controlling the duplex mode selection switch to transfer the signal received from the filter unit to the receiving side without passing through the TDD switch when the received duplex mode selection signal is a FDD mode selection signal.

What is claimed: 
     
         1 . An amplifier system comprising a controller for controlling an amplifier operable in a Time Division Duplex (TDD) mode or a Frequency Division Duplex (FDD) mode, the controller comprising:
 an interface unit configured to receive a duplex mode selection signal from a system; and   a control unit configured to control a duplex mode selection switch to connect a filter unit and a transmitting side, if the received duplex mode selection signal is an FDD mode selection signal, so that a first transmitting path signal transmitted to the filter unit is transferred through the duplex mode selection switch from the transmitting side, and to control the duplex mode selection switch to connect a TDD switch and the transmitting side if the received duplex mode selection signal is a TDD mode selection signal, so that a second transmitting path signal is transferred to the filter unit through the TDD switch from the transmitting side.