Frequency offset estimation and compensation method
US10110275B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2017 |
| Grant date | Oct 23, 2018 |
| Priority date | — |
| Expiry date | Jul 21, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/323
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A method of estimating an integer frequency offset and compensating for the integer frequency offset by an estimated error is provided. A frequency offset estimation method may include receiving a reception signal including PLC data and a physical layer link channel (PLC) preamble, detecting first position information on a position of a subcarrier of the PLC preamble in a frequency axis from the reception signal through a cross-correlation between the PLC preamble and the reception signal, detecting second position information on the position of the subcarrier of the PLC preamble defined in a transmission end by restoring the PLC data, and calculating a frequency offset by comparing the first position information with the second position information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.