Invention Grant
- Patent Title: Signal and noise power estimation
- Patent Title (中): 信号和噪声功率估计
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Application No.: US12510484Application Date: 2009-07-28
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Publication No.: US08379706B2Publication Date: 2013-02-19
- Inventor: Yan Zhou , Jibing Wang
- Applicant: Yan Zhou , Jibing Wang
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Larry Moskowitz; Mary A. Fales
- Main IPC: H04B3/46
- IPC: H04B3/46

Abstract:
Techniques for estimating desired signal power and noise power of a signal received over a communications channel. In an aspect, a pilot autocorrelation matrix is derived based on certain assumptions about the time delay profile, Doppler profile, and/or spatial correlation of the channel. The pilot autocorrelation matrix is decomposed into a set of eigenvectors. From the eigenvector decomposition, a set of dominant eigenvectors is selected to estimate the signal power, while a set of non-dominant eigenvectors is selected to estimate the noise power. The techniques may readily be applied to arbitrary pilot patterns and to a wide array of SNR ranges and channel conditions.
Public/Granted literature
- US20110026574A1 SIGNAL AND NOISE POWER ESTIMATION Public/Granted day:2011-02-03
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