Estimation of CFO Based on Relative Values of Frequency Bins Corresponding to Used Subcarriers of Received Preamble Symbols for OFDM Systems
AssigneeST-Ericsson SA
InventorAchraf DHAYNI
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AssigneeST-Ericsson SA
InventorAchraf DHAYNI
Estimating the term…
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.
A method for receiving and demodulating an orthogonal frequency division multiplexing signal received through a transmission channel by a receiver, comprising demultiplexing said signal to generate time symbols and performing a time-to-frequency conversion of said time symbols to generate frequency bins corresponding to received symbols, said received symbols comprising preamble symbols, and said method comprising:
A receiver for receiving and demodulating an orthogonal frequency division multiplexing signal received from a transmission channel, comprising a receiving function module adapted for demultiplexing said signal to generate time symbols and performing a time-to-frequency conversion of said time symbols to generate frequency bins corresponding to received symbols, said received symbols comprising preamble symbols, and said receiver further comprising a carrier frequency offset estimator for determining an estimated carrier frequency offset on the basis frequency bins corresponding to used subcarriers of said preamble symbols;
Dependencies are inferred from the claim text.