Title:
METHOD AND DECODER FOR SUPPRESSING PHASE NOISE IN AN ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING SIGNAL
Document Type and Number:
WIPO Patent Application WO/2021/047569
Kind Code:
A1
Abstract:
Phase noise (PN) is suppressed in an OFDM signal. In an initial iteration, an estimation of the PN samples in an OFDM signal vector is produced and the OFDM signal is demodulated using the initial estimation of the PN to generate constellation symbols for the initial iteration. In an additional iteration, an Inverse Fast Fourier Transform of constellation symbols generated in a preceding iteration is calculated to reconstruct preceding samples of the transmitted signal vector. A PN effect on the reconstructed samples is estimated. A next estimation of the PN in a next signal vector is produced based on the estimated PN effect on the reconstructed samples. The next signal vector is demodulated using the next estimation of the PN to generate constellation symbols for the additional iteration. A predetermined maximum number of additional iterations may be used.
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Inventors:
NESHAASTEGARAN PEYMAN (CA)
JIAN MING (CA)
JIAN MING (CA)
Application Number:
PCT/CN2020/114360
Publication Date:
March 18, 2021
Filing Date:
September 10, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L27/26
Domestic Patent References:
| WO2007042900A1 | 2007-04-19 |
Foreign References:
| US10708107B1 | 2020-07-07 | |||
| CN109962872A | 2019-07-02 | |||
| CN108900460A | 2018-11-27 | |||
| CN102130879A | 2011-07-20 | |||
| US20150104197A1 | 2015-04-16 |
Other References:
See also references of EP 4026288A4
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