Invention Application
US20150312079A1 Estimation of CFO Based on Relative Values of Frequency Bins Corresponding to Used Subcarriers of Received Preamble Symbols for OFDM Systems
有权
基于与OFDM系统的接收前导符号的使用子载波相对应的频率段相对值的CFO估计
- Patent Title: Estimation of CFO Based on Relative Values of Frequency Bins Corresponding to Used Subcarriers of Received Preamble Symbols for OFDM Systems
- Patent Title (中): 基于与OFDM系统的接收前导符号的使用子载波相对应的频率段相对值的CFO估计
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Application No.: US14428022Application Date: 2013-10-10
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Publication No.: US20150312079A1Publication Date: 2015-10-29
- Inventor: Achraf DHAYNI
- Applicant: ST-ERICSSON SA
- Applicant Address: CH Plan-les-Ouates
- Assignee: ST-Ericsson SA
- Current Assignee: ST-Ericsson SA
- Current Assignee Address: CH Plan-les-Ouates
- Priority: EP12306259.8 20121012
- International Application: PCT/EP2013/071199 WO 20131010
- Main IPC: H04L27/26
- IPC: H04L27/26

Abstract:
It is proposed a method for receiving and demodulating an orthogonal frequency division multiplexing signal received through a transmission channel (TC) by a receiver (RCV), comprising demultiplexing said signal to generate time symbols (yl(n)) and performing a time-to-frequency conversion of these time symbols to generate frequency bins (Yl(k)) corresponding to received symbols, the received symbols comprising preamble symbols. The method comprises: Determining an estimated carrier frequency offset on the basis of frequency bins corresponding to used subcarriers of the preamble symbols; Applying said estimated carrier frequency offset to the time symbols so as to correct the carrier frequency of these received symbols.
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