Invention Grant
US08111788B2 Apparatus for estimating and correcting baseband frequency error in a receiver
失效
用于估计和校正接收机中基带频率误差的装置
- Patent Title: Apparatus for estimating and correcting baseband frequency error in a receiver
- Patent Title (中): 用于估计和校正接收机中基带频率误差的装置
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Application No.: US13053856Application Date: 2011-03-22
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Publication No.: US08111788B2Publication Date: 2012-02-07
- Inventor: Philip J. Pietraski , Rui Yang , Mihaela C. Beluri , Alpaslan Demir
- Applicant: Philip J. Pietraski , Rui Yang , Mihaela C. Beluri , Alpaslan Demir
- Applicant Address: US DE Wilmington
- Assignee: InterDigital Technology Corporation
- Current Assignee: InterDigital Technology Corporation
- Current Assignee Address: US DE Wilmington
- Agency: Volpe and Koenig, P.C.
- Main IPC: H04L27/06
- IPC: H04L27/06

Abstract:
An apparatus for estimating and correcting baseband frequency error in a receiver is disclosed. An equalizer performs equalization on a sample data stream and generates filter tap values based on the equalization. An estimated frequency error signal is generated based on at least one of the filter tap values. A rotating phasor is generated based on the estimated frequency error signal. The rotating phasor signal is multiplied with the sample data stream to correct the frequency of the sample data stream. Alternatively, a channel estimator performs channel estimation and generates Rake receive finger weights based on at least one of the finger weights. An estimated frequency error signal is generated based on at least one of the finger weights.
Public/Granted literature
- US20110170589A1 APPARATUS FOR ESTIMATING AND CORRECTING BASEBAND FREQUENCY ERROR IN A RECEIVER Public/Granted day:2011-07-14
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