Self-interference signal cancellation apparatus and transceiver including the same
AssigneeElectronics and Telecommunications Research Institute
InventorSung Jun LEE
Life of this patent
Estimating the term…
Abstract
An apparatus for canceling a self-interference signal and a transceiver including the same are disclosed. The transceiver may include an antenna; a circulator transmitting a portion of a transmit signal to the antenna and transmitting a receive signal received through the antenna to a receiver; and a self-interference signal canceling unit receiving a first signal, which is a portion of the transmit signal, and physically copying a self-interference signal generated by the antenna and the circulator to generate an estimation signal of the self-interference signal.
Claims19
A transceiver comprising:
- an antenna;
- a first circulator transmitting a portion of a transmit signal to the antenna and transmitting a receive signal received through the antenna to a receiver;
- and
- a self-interference signal canceling unit receiving a first signal, which is a portion of the transmit signal, and physically copying a self-interference signal generated by the antenna and the first circulator to generate an estimation signal of the self-interference signal.
An apparatus for canceling a self-interference signal generated by an antenna and a first circulator, in a transceiver including the antenna, and the first circulator transmitting a portion of a transmit signal to the antenna and transmitting a receive signal received through the antenna to a receiver, the apparatus comprising:
- a second circulator receiving a first signal, which is a portion of the transmit signal, and physically copying the first circulator to output a second signal;
- and
- a load generator connected to the second circulator and showing input impedance of the antenna.
A transceiver comprising:
- a first antenna transmitting a portion of a transmit signal;
- a second antenna positioned to be spaced apart from the first antenna by a first length and receiving a receive signal;
- and
- a self-interference signal canceling unit receiving a first signal, which is a portion of the transmit signal, and physically copying a self-interference signal generated by the first length to generate an estimation signal of the self-interference signal.
Dependencies are inferred from the claim text.