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US 8,509,364 B2Granted
Platform noise estimation and mitigation for wireless receivers
AssigneeIntel Corporation
InventorsYongfang Guo, Xintian Eddie Lin
Life of this patent
Estimating the term…
Abstract
An apparatus and method suitable to estimate impairments of wireless signals, including both noise and interference of the wireless signals are disclosed herein. The noise of the wireless signals may be caused by thermal noise and platform noise. An adaptive scheme may dynamically switch between estimating interference only or the combined noise and interference. Other embodiments may be disclosed or claimed.
Claims20
An apparatus comprising:
- a multipath antenna configured to receive wireless signals;
- an estimator coupled to the multipath antenna and configured to:
- perform a first estimation of impairments of the wireless signals indicative of interference and additive white Gaussian noise (AWGN) of the wireless signals,
- perform a second estimation of the impairments of the wireless signals indicative of the interference and platform noise of the wireless signals, and
- determine whether a difference between the first estimation and the second estimation is more than a predetermined threshold;
- and
- a decoder configured to decode the wireless signals based on a result of said determination.
4 more elements
A method, comprising:
- receiving wireless signals;
- performing a first estimation of impairments of the wireless signals indicative of interference and additive white Gaussian noise (AWGN) of the wireless signals;
- performing a second estimation of the impairments of the wireless signals indicative of the interference and platform noise of the wireless signals;
- comparing the first estimation to the second estimation;
- and
- mitigating an effect of the impairments of the wireless signals based on said comparing.
3 more elements
A system comprising:
- one or more antenna units to receive wireless signals;
- a data bus coupled to the one or more antenna units;
- a receiver operatively coupled to the data bus and the one or more antenna units to:
- perform a first estimation of impairments of the wireless signals indicative of interference and additive white Gaussian noise (AWGN) of the wireless signals,
- perform a second estimation of the impairments of the wireless signals indicative of the interference and platform noise of the wireless signals, wherein the platform noise includes noise caused by the data bus of the system,
- compare a temporal correlation and a spatial correlation of the first estimation and the second estimation, and
- determine whether a first difference between the temporal correlation of the first estimation and the second estimation, and a second difference between the spatial correlation of the first estimation and the second estimation are both more than a predetermined threshold;
- and
- a decoder to decode the wireless signals based on said determination.
6 more elements
Dependencies are inferred from the claim text.