Interference cancellation methods and apparatus
AssigneeGenXComm, Inc.
InventorsHardik Jain, Che-Chun Lin
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Abstract
Methods and apparatus for reducing and/or canceling signal interference between receiver and transmitter components of a wireless communications device are described. The methods and apparatus are well suited for use in a wide range of devices including user equipment devices such as cell phones as well as in network equipment such a base stations. Opto-mechanical devices are used in some embodiments as part of an apparatus which performs interference cancellation on RF (Radio Frequency) signals.
Claims11
A method of performing radio frequency (RF) self-interference cancellation comprising:
- receiving a first RF signal and a control signal;
- producing an acoustic signal carrying the first RF signal;
- transducing the acoustic signal onto an optical signal according to the control signal;
- transducing the optical signal to an electrical signal;
- and
- combing the electrical signal with a second RF signal to cancel interference by the first RF signal in the second RF signal.
A radio frequency (RF) self-interference cancellation apparatus comprising:
- a first transducer configured to receive an RF signal and to produce an acoustic signal carrying the RF signal;
- a control input configured to receive a control signal for controlling phonon-photon transduction of the acoustic signal to an optical signal;
- a waveguide configured to communicate the optical signal;
- an optical to electrical converter configured to convert the optical signal to an electrical interference cancellation signal;
- and
- a combiner configured to combine the electrical interference cancellation signal with the RF signal.
Dependencies are inferred from the claim text.