Apparatus and method for tracking residual frequency offset for single carrier-frequency domain equalizer system
US7308033B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2003 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Apr 23, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2027/0042
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for tracking a residual frequency offset for a single carrier-frequency domain equalizer system includes: determining a pilot from the data and known pilot data, adding the determined pilot to the leading part of the data, copying a part of the frame of the data after a block and adding it before the block, and generating a preamble to construct one frame; eliminating a cyclic prefix, processing signals per an FFT block, extracting the preamble, and performing an initial channel estimation; updating a channel estimation, performing channel compensation, receiving a pilot, calculating an average phase of all the pilots in one FFT block, updating the channel estimation, performing an IFFT operation, extracting data, and recovering the original digital signal from the data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.