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US 10,897,769 B2Granted
Method and apparatus for blind detection of interference parameters in LTE system
AssigneeSamsung Electronics Co., Ltd.
InventorsMojtaba Rahmati, Dongwoon Bai, Jungwon Lee
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Abstract
A method and an apparatus. The method includes receiving a signal including a serving signal and an interference signal; applying a Gaussian approximation (GA) on the serving signal and the interference signal; determining likelihood metrics for hypotheses on a rank of the interference signal, a precoding matrix index, and power on the GA-applied interference signal based on a covariance matrix for each of the hypotheses; and selecting one of the hypotheses that maximizes one of the likelihood metrics.
Claims20
A method, comprising:
- receiving a signal including a serving signal and an interference signal;
- applying a Gaussian approximation (GA) on a serving signal and the interference signal;
- determining, for one or more hypotheses, likelihood metrics for a rank of the interference signal, a precoding matrix index, and power on the GA-applied interference signal, wherein each hypothesis is a unique combination of a traffic to pilot ratio (TPR) from one or more TPRs of the interference signal and a covariance matrix index (CMI) from one or more CMIs;
- and
- determining a TPR from at least one of the hypotheses that maximize the likelihood metrics.
2 more elements
An apparatus, comprising:
- an antenna for receiving a signal including a serving signal and an interference signal;
- and
- a processor configured to:
- apply a Gaussian approximation (GA) on the serving signal and the interference signal;
- determine, for one or more hypotheses, likelihood metrics for a rank of the interference signal, a precoding matrix index, and power on the GA-applied interference signal, wherein each hypothesis is a unique combination of a traffic to pilot ratio (TPR) from one or more TPRs of the interference signal and a covariance matrix index (CMI) from one or more CMIs;
- and
- determine a TPR from at least one of the hypotheses that maximize the likelihood metrics.
4 more elements
Dependencies are inferred from the claim text.