Method and device for estimating frequency offset of reception signal
US10263824B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Nov 23, 2015 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Nov 23, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L27/2684
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for estimating a frequency offset of a reception signal and, more particularly, a signal processing method which can be applied to a receiver modem in a wireless communication system, are provided. The method includes using an absolute value within a specific time area in an inverse discrete fourier transform (IDFT) output of a decorrelation signal between a reception signal and a reference signal, and enabling a highly approximate estimation of a frequency offset through only a single decorrelation test using a characteristic of a predetermined permutation of a signal.
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