Wireless communication system for time division duplex

A wireless communication system for time division duplex comprising:

• a bidirectional frequency conversion unit bidirectionally converting a receiver (Rx) signal and a transmitter (Tx) signal, and including a first connection terminal connected to an Rx input terminal and a Tx output terminal, and a second connection terminal;
• a common intermediate frequency (IF) circuit unit processing an Rx signal input through the second connection terminal of the bidirectional frequency conversion unit or a Tx signal input through a Tx input terminal;
• an Rx switching circuit unit switched ON in an Rx operation, and including a first Rx switch connected between the Rx input terminal and the first connection terminal of the bidirectional frequency conversion unit, a second Rx switch connected between the second connection terminal of the bidirectional frequency conversion unit and an input terminal of the common IF circuit unit, and a third Rx switch connected between an output terminal of the common IF circuit unit an Rx output terminal;
• and
• a Tx switching circuit unit switched ON in a Tx operation, and including a first Tx switch connected between the Tx input terminal and the input terminal of the common IF circuit unit, a second Tx switch connected to a bypass path connecting the input terminal of the common IF circuit unit with the output terminal of the common IF circuit unit, and a third Tx switch connected between the first connection terminal of the bidirectional frequency conversion unit and the Tx output terminal,
• where in the Rx switching circuit unit and the Tx switching circuit unit operate in a time-division manner.