Invention Grant
US07990839B2 Method for estimating time and frequency offset in an OFDM system
有权
用于估计OFDM系统中的时间和频率偏移的方法
- Patent Title: Method for estimating time and frequency offset in an OFDM system
- Patent Title (中): 用于估计OFDM系统中的时间和频率偏移的方法
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Application No.: US11982121Application Date: 2007-10-31
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Publication No.: US07990839B2Publication Date: 2011-08-02
- Inventor: Leonard Joseph Cimini, Jr. , Bruce Edwin McNair
- Applicant: Leonard Joseph Cimini, Jr. , Bruce Edwin McNair
- Assignee: AT&T Intellectual Property II, LP
- Current Assignee: AT&T Intellectual Property II, LP
- Main IPC: H04J11/00
- IPC: H04J11/00 ; H04L27/06 ; H04L27/28
Abstract:
A receiver that employs inherent characteristics of frequency domain representation of the data symbols. By computing a differential-in-frequency function across a large number of OFDM tones, robust estimates of time and frequency offset are obtained. The obtained time and frequency estimates provide control to sampling and frequency offset elements that are interposed between the reliever input and subsequent receiver stages.
Public/Granted literature
- US20080063101A1 Method for estimating time and frequency offset in an OFDM system Public/Granted day:2008-03-13
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