Interference and Noise Estimation of a Communications Channel
First Claim
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1. A method of estimating interference and noise of a communications channel, comprising:
- receiving a data sequence transmitted over the communications channel at a receiver;
computing a sequence of channel estimates based on the received data sequence;
computing a difference sequence based on the sequence of channel estimates and the sequence of channel estimates subjected to a displacement in time or frequency; and
determining a covariance measure of the difference sequence as an estimate of the interference and noise of the communications channel.
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Abstract
A method of estimating interference and noise of a communications channel includes receiving a data sequence transmitted over the communications channel at a receiver, and computing a sequence of channel estimates based on the received data sequence. The method also includes computing a difference sequence based on the sequence of channel estimates and the sequence of channel estimates subjected to a displacement in time or frequency, and determining a covariance measure of the difference sequence as an estimate of the interference and noise of the communications channel.
18 Citations
24 Claims
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1. A method of estimating interference and noise of a communications channel, comprising:
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receiving a data sequence transmitted over the communications channel at a receiver; computing a sequence of channel estimates based on the received data sequence; computing a difference sequence based on the sequence of channel estimates and the sequence of channel estimates subjected to a displacement in time or frequency; and determining a covariance measure of the difference sequence as an estimate of the interference and noise of the communications channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of estimating interference and noise of a communications channel, the method comprising:
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receiving a data sequence transmitted over the communications channel at a receiver; computing a difference sequence based on the received data sequence and the received data sequence subjected to a displacement in time or frequency; and determining a covariance measure of the difference sequence as an estimate of the interference and noise of the communications channel. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. An interference and noise estimator for estimating interference and noise of a communications channel, the interference and noise estimator comprising:
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a receiving circuit configured to receive a data sequence transmitted over the communications channel; a channel estimator configured to compute a sequence of channel estimates based on the received data sequence from the receiving circuit; a difference sequence computation circuit configured to compute a difference sequence based on the sequence of channel estimates and the sequence of channel estimates subjected to a displacement in time or frequency from the channel estimator; and a covariance determination circuit configured to determine a covariance measure of the difference sequence from the difference sequence computation circuit. - View Dependent Claims (21, 22)
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23. An interference and noise estimator for estimating interference and noise of a communications channel, the interference and noise estimator comprising:
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a receiving circuit configured to receive a data sequence transmitted over the communications channel; a difference sequence computation circuit configured to compute a difference sequence based on the received data sequence and the received data sequence subjected to a displacement in time or frequency from the receiving circuit; and a covariance determination circuit configured to determine a covariance measure of the difference sequence from the difference sequence computation circuit. - View Dependent Claims (24)
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Specification