Methods and transceivers for self-interference mitigation
AssigneeApple Inc.
InventorsAndreas MENKHOFF, Stefan FECHTEL
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Abstract
The present disclosure relates to a transceiver comprising a transmitter with transformation circuitry configured to transform a frequency-domain transmit symbol from frequency-domain to time domain to generate a time-domain transmit signal, a receiver with inverse transformation circuitry configured to transform a time-domain receive signal from time domain to frequency domain to generate a frequency-domain receive symbol, and self-interference cancellation circuitry configured to modify the frequency-domain receive symbol based on at least one frequency-domain transmit symbol and a frequency-domain crosstalk channel estimate of a crosstalk channel between the transmitter and the receiver.
Claims22
A transceiver, comprising
- a transmitter comprising transformation circuitry configured to transform a frequency-domain transmit symbol from frequency domain to time domain to generate a time-domain transmit signal;
- a receiver comprising inverse transformation circuitry configured to transform a time-domain receive signal from time domain to frequency domain to generate a frequency-domain receive symbol;
- and
- self-interference cancellation circuitry configured to modify the frequency-domain receive symbol based on at least one frequency-domain transmit symbol and a frequency-domain crosstalk channel estimate of a crosstalk channel between the transmitter and the receiver.
A mobile device comprising:
- a transceiver comprising:
- a transmitter comprising transformation circuitry configured to transform a frequency-domain transmit symbol from frequency domain to time domain to generate a time-domain transmit signal;
- a receiver comprising inverse transformation circuitry configured to transform a time-domain receive signal from time domain to frequency domain to generate a frequency-domain receive symbol;
- and
- self-interference cancellation circuitry configured to modify the frequency-domain receive symbol based on at least one frequency-domain transmit symbol and a frequency-domain crosstalk channel estimate of a crosstalk channel between the transmitter and the receiver;
- and
- a processor communicatively coupled to the transceiver and configured to perform primary processing operations of the device.
A base station comprising:
- a transmitter comprising transformation circuitry configured to transform a frequency-domain transmit symbol from frequency domain to time domain to generate a time-domain transmit signal;
- a receiver comprising inverse transformation circuitry configured to transform a time-domain receive signal from time domain to frequency domain to generate a frequency-domain receive symbol;
- and
- self-interference cancellation circuitry configured to modify the frequency-domain receive symbol based on at least one frequency-domain transmit symbol and a frequency-domain crosstalk channel estimate of a crosstalk channel between the transmitter and the receiver.
A self-interference mitigation method for multicarrier transceiver, the method comprising
- transforming a frequency-domain multicarrier transmit symbol from frequency domain to time domain to generate a time-domain multicarrier transmit signal;
- transforming a time-domain multicarrier receive signal from time domain to frequency domain to generate a frequency-domain multicarrier receive symbol;
- and modifying the frequency-domain multicarrier receive symbol based on at least one frequency-domain multicarrier transmit symbol and
- a frequency-domain crosstalk channel estimate of a crosstalk channel between a transmitter portion and a receiver portion of the multicarrier transceiver.
A computer program having a program code for carrying out, when the computer program is executed on a programmable hardware device, a self-interference mitigation method for multicarrier transceiver, the method comprising
- transforming a frequency-domain multicarrier transmit symbol from frequency domain to time domain to generate a time-domain multicarrier transmit signal;
- transforming a time-domain multicarrier receive signal from time domain to frequency domain to generate a frequency-domain multicarrier receive symbol;
- and modifying the frequency-domain multicarrier receive symbol based on at least one frequency-domain multicarrier transmit symbol and
- a frequency-domain crosstalk channel estimate of a crosstalk channel between a transmitter portion and a receiver portion of the multicarrier transceiver.
Dependencies are inferred from the claim text.