AUTOMATED BLIND COEFFICIENT CONTROL IN ANALOG ACTIVE INTERFERENCE CANCELLATION
First Claim
1. A method of performing interference cancellation in a device having at least one transmitter and at least one receiver, the method comprising:
- receiving an interfering signal from the transmitter at the receiver;
determining a digital coefficient for interference cancellation of the interfering signal, based on a baseband signal;
converting the digital coefficient to an analog coefficient; and
applying the analog coefficient to an interference cancellation circuit to cancel the interfering signal.
1 Assignment
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Accused Products
Abstract
Aspects of the disclosure are directed to interference cancellation and wireless communication. An analog active interference cancellation circuit may be configured to cancel in-device interference corresponding to transmissions from a transmitter at a wireless communication device, which affects the performance of a receiver at the wireless communication device. The interference cancellation circuit may be configured according to one or more digital coefficients calculated based on a baseband downconverted from the RF output of the receiver. That is, the digital coefficient may be converted to an analog coefficient and applied to the interference cancellation circuit.
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Citations
30 Claims
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1. A method of performing interference cancellation in a device having at least one transmitter and at least one receiver, the method comprising:
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receiving an interfering signal from the transmitter at the receiver; determining a digital coefficient for interference cancellation of the interfering signal, based on a baseband signal; converting the digital coefficient to an analog coefficient; and applying the analog coefficient to an interference cancellation circuit to cancel the interfering signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus configured for wireless communication, comprising:
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at least one processor; a memory coupled to the at least one processor; at least one transmitter coupled to the at least one processor; at least one receiver coupled to the at least one processor; and an interference cancellation circuit coupled between the at least one transmitter and the at least one receiver, wherein the at least one processor is configured to; receive an interfering signal from the transmitter at the receiver; determine a digital coefficient for interference cancellation of the interfering signal, based on a baseband signal; convert the digital coefficient to an analog coefficient; and apply the analog coefficient to the interference cancellation circuit to cancel the interfering signal. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. An apparatus configured for wireless communication, comprising:
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at least one transmitter; at least one receiver; means for interference cancellation, coupled between the at least one transmitter and the at least one receiver, and configured to apply interference cancellation to an interfering signal from the transmitter received at the receiver; means for determining a digital coefficient for interference cancellation of the interfering signal, based on a baseband signal; means for converting the digital coefficient to an analog coefficient; and means for applying the analog coefficient to the means for interference cancellation to cancel the interfering signal. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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26. A computer-readable medium storing computer executable code, operable on a device comprising at least one transmitter, at least one receiver, and an interference cancellation circuit coupled between the at least one transmitter and the at least one receiver, and configured to apply interference cancellation to an interfering signal from the transmitter received at the receiver, the computer executable code comprising:
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instructions for causing a computer to determine a digital coefficient for interference cancellation of the interfering signal, based on a baseband signal; instructions for causing a computer to convert the digital coefficient to an analog coefficient; and instructions for causing a computer to apply the analog coefficient to the means for interference cancellation to cancel the interfering signal. - View Dependent Claims (27, 28, 29, 30)
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Specification