Self interference cancellation
AssigneeEmpire Technology Development LLC
InventorHyoung-Gon Lee
Life of this patent
Estimating the term…
Abstract
A method performed under control of a first device capable of full duplex radio communications may include transmitting a first frame to a second device; estimating a channel response of self interference cancellation (SIC), based, at least in part, on the first frame; and determining whether the estimated channel response is usable.
Claims18
-8. (canceled)
A method performed under control of a device capable of full duplex radio communications, the method comprising:
- estimating a change of self interference;
- determining an interval of re-tuning of self interference cancellation (SIC), wherein determination of the interval of re-tuning of the SIC is based at least in part on the estimated change of the self interference;
- and
- re-tuning the SIC after the determined interval.
-20. (canceled)
A device capable of full duplex radio communications, the device comprising:
- a transceiver capable to perform simultaneous signal transmission and signal reception;
- a self interference change estimator coupled to the transceiver and operable to estimate a change of self interference based on a signal transmitted by the transceiver and a corresponding signal received by the transceiver;
- an interval manager coupled to the self interference change estimator and operable to determine an interval of re-tuning of self interference cancellation (SIC), wherein the determination of the interval of re-tuning of the SIC is based at least in part on the estimated change of self interference;
- and
- a self interference cancellation manager coupled to the interval manager and operable to re-tune the SIC after the determined interval.
A non-transitory computer-readable medium having stored thereon computer-executable instructions, which in response to execution by a processors, cause a device capable of full duplex radio communications to perform operations comprising:
- monitoring an environment of the device for a change in the environment;
- detecting, based on the monitoring, a change in the environment of the device;
- estimating, based on the detected change in the environment of the device, a change of self interference;
- adjusting an interval of re-tuning of self interference cancellation (SIC) from a first interval to a second interval different from the first interval, wherein the adjusting the interval of re-tuning of the SIC is based on the estimated change of the self interference;
- and
- re-tuning the SIC after the second interval.
Dependencies are inferred from the claim text.