Method and apparatus for correcting frequency offset
US8761238B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2013 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | May 16, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0042
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and an apparatus for correcting a frequency offset are provided. The method includes: receiving n channels of first signals; performing frequency offset correction processing on the n channels of first signals to obtain n channels of first corrected signals; acquiring n center tap coefficients of a space time equalizer, n first output phases of a phase-locked loop phase detector, and a second output phase of a phase-locked loop phase detector; acquiring n first estimated frequency offset values according to the n center tap coefficients and the n first output phases; acquiring a second estimated frequency offset value according to the second output phase; and receiving n channels of second signals, and performing frequency offset correction on the n channels of second signals according to the n first estimated frequency offset values and the second estimated frequency offset value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.