Electronic device for removing self-interference signal and method of operating the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJoontae Kim, Gangminh Lee, Daeyoung Kim
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Abstract
A wireless communication device includes a transmission radio frequency (RF) chain configured to transmit a radio signal, and processing circuitry configured to cause the wireless communication device to detect that the transmission RF chain has transited from an inactive state to a first active state, determine whether to detect an updated value of a phase of a self-interference signal in response to detecting that the transmission RF chain has transited from the inactive state to the first active state, and modify a weight vector of an adaptive filter corresponding to the self-interference signal based on the updated value of the phase or a previous value of the phase.
Claims20
A wireless communication device comprising:
- a transmission radio frequency (RF) chain configured to transmit a radio signal;
- and
- processing circuitry configured to cause the wireless communication device to,
- detect that the transmission RF chain has transited from an inactive state to a first active state,
- determine whether to detect an updated value of a phase of a self-interference signal in response to detecting that the transmission RF chain has transited from the inactive state to the first active state, and
- modify a weight vector of an adaptive filter corresponding to the self-interference signal based on the updated value of the phase or a previous value of the phase,
- wherein the processing circuitry is configured to cause the wireless communication device to determine whether to detect the updated value of the phase of the self-interference signal including determining whether a duration period of the inactive state is greater than a threshold time.
A method of operating a wireless communication device, the method comprising:
- detecting that a transmission radio frequency (RF) chain has transited from an inactive state to a first active state, the transmission RF chain being configured to transmit a radio signal;
- determining whether to detect an updated value of a phase of a self-interference signal in response to the detecting;
- and
- modifying a weight vector of an adaptive filter corresponding to the self-interference signal based on the updated value of the phase or a previous value of the phase,
- wherein the determining determines whether to detect the updated value of the phase including determining whether a duration period of the inactive state is greater than a threshold time.
A wireless communication device comprising:
- a transmission radio frequency (RF) chain configured to transmit a radio signal;
- and
- processing circuitry configured to cause the wireless communication device to,
- detect that the transmission RF chain has transited from an inactive state to a first active state,
- determine to detect an updated value of a phase of a self-interference signal in response to detecting that the transmission RF chain has transited from the inactive state to the first active state,
- detect the updated value of the phase of the self-interference signal in response to the determination, and
- modify a weight vector of an adaptive filter corresponding to the self-interference signal based on the updated value of the phase of the self-interference signal,
- wherein the processing circuitry is configured to cause the wireless communication device to determine to detect the updated value of the phase of the self-interference signal including determining whether a duration period of the inactive state is greater than a threshold time.
Dependencies are inferred from the claim text.