Method and apparatus for performing full duplex radio in wireless communication system

A method performed by a terminal in a wireless communication system, the method comprising:

• generating a first signal at a transmitting end of the terminal;
• transmitting the generated first signal through an antenna;
• receiving a second signal through the antenna;
• and
• transferring the second signal to a receiving end of the terminal,
• wherein the first signal and the second signal pass through a differential circulator within a time interval, and
• wherein the differential circulator comprises two double pole double throw (DPDT) switches, two single pole double throw (SPDT) switches and at least one sequentially switched delay line (SSDL).

A terminal in a wireless communication system, the terminal comprising:

• a transceiver;
• and
• a processor connected to the transceiver,
• wherein the processor is configured to:
• generate a first signal at a transmitting end of the terminal;
• transmit the generated first signal through an antenna;
• receive a second signal through the antenna;
• and
• transfer the second signal to a receiving end of the terminal,
• wherein the first signal and the second signal pass through a differential circulator within a time interval, and
• wherein the differential circulator comprises two double pole double throw (DPDT) switches, two single pole double throw (SPDT) switches and at least one sequentially switched delay line (SSDL).

A base station in a wireless communication system, the base station comprising:

• a transceiver;
• and
• a processor connected to the transceiver,
• wherein the processor is configured to:
• generate a first signal at a transmitting end of the base station,
• transmit the generated first signal through an antenna,
• receive a second signal through the antenna, and
• transfer the second signal to a receiving end of the base station,
• wherein the first signal and the second signal pass through a differential circulator within a time interval, and
• wherein the differential circulator comprises two double pole double throw (DPDT) switches, two single pole double throw (SPDT) switches and at least one sequentially switched delay line (SSDL).